Low-nitrogen burner and gas equipment
By designing movable nozzles and dehumidification devices in the low-NOx burner and using air blowing components to remove residual moisture, the problems of high-temperature burns from nozzle residue and moisture corrosion are solved, improving the safety and performance of the equipment.
Patent Information
- Application Number
- CN202422629836.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Traditional semi-premixed staged combustion low-NOx burners have high residual temperatures at the nozzle after use, which can easily burn users. In addition, residual moisture after combustion can easily corrode the equipment and reduce its performance.
Design a low-NOx burner equipped with a nozzle and a dehumidification device. The nozzle can be movably stored in the combustion chamber, and the dehumidification device removes water vapor by blowing air into the combustion chamber through an air blowing assembly. A heating assembly is also provided to improve the dehumidification efficiency.
It effectively removes residual moisture, improves the safety and performance of the burner, prevents equipment corrosion, and enhances the user experience.
Smart Images
Figure CN223855623U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gas equipment technical field especially relates to a kind of low-nitrogen combustor and gas equipment. BACKGROUND
[0002] Low-nitrogen combustor is just that traditional combustor is increased by blower, induced draft fan, frequency converter uses control valve and multiple circuit integration to let clean energy and combustor operation provide higher efficient heat energy for boiler.Semi-premixed staged combustion low-nitrogen combustor is just that traditional combustor is increased by blower, induced draft fan, frequency converter uses control valve and multiple circuit integration to let clean energy and combustor operation provide higher efficient heat energy for boiler.Traditional semi-premixed staged combustion low-nitrogen combustor is left after use, nozzle part will remain higher temperature, user does not notice, touch nozzle will cause scald, there is certain security risk.
[0003] In order to solve the above technical problems, the nozzle is stored after use in the prior art to prevent the user from being scalded by the residual temperature of the nozzle as much as possible.However, the nozzle is stored in the above-mentioned patent during use, and water vapor is easily left in the low-nitrogen combustor after combustion, and the moisture is also easily eroded in the equipment, reducing the use performance of the low-nitrogen combustor. UTILITY MODEL CONTENT
[0004] The main purpose of the utility model is to provide a low-nitrogen combustor and gas equipment, which aims to quickly dry the condensate water vapor left in the shell and improve the use performance of the low-nitrogen combustor.
[0005] To achieve the above-mentioned purpose, the utility model provides a low-nitrogen combustor, which comprises:
[0006] The shell has a combustion chamber and a fire hole communicating with the combustion chamber;
[0007] The nozzle is movably installed at the fire hole along the depth direction of the fire hole, so as to be able to extend out of the combustion chamber and be stored in the combustion chamber during the movement stroke; and
[0008] The dehumidifying device comprises a blowing assembly, which is arranged to be able to blow air into the combustion chamber, so that the air flow is blown out of the fire hole.
[0009] In an embodiment, the dehumidifying device further comprises a heating assembly, which is used to heat the air flow blown by the blowing assembly.
[0010] In an embodiment, the dehumidifying device is arranged outside the shell;
[0011] The shell is provided with a communication port communicating with the combustion chamber;
[0012] The dehumidifying device is communicated with the communicating port.
[0013] In an embodiment, a communicating part is arranged between the dehumidifying device and the communicating port, and the communicating part is provided with a communicating channel for communicating the dehumidifying device and the communicating port.
[0014] The communicating channel is provided with a switch member for controlling the opening and closing of the communicating channel.
[0015] In an embodiment, the switch member is movably arranged in the communicating channel, and in the movement stroke, the switch member can extend out of the communicating channel or retract into the communicating channel.
[0016] The nozzle is in transmission connection with the switch member, so as to drive the switch member to extend out of the communicating channel when extending out of the combustion chamber, and drive the switch member to retract into the communicating channel when retracting into the combustion chamber.
[0017] In an embodiment, the switch member is arranged as a sliding plate, which is slidingly installed in the communicating channel along a first direction of the cross section of the communicating channel, and a closing area and an opening area are arranged in sequence on the sliding plate along the first direction, and in the movement stroke, the closing area can move to the communicating channel to close the communicating channel, or the opening area can move to the communicating channel to open the communicating channel.
[0018] In an embodiment, the dehumidifying device further comprises a connecting member, and one end of the sliding plate is connected with the nozzle through the connecting member.
[0019] In an embodiment, the low-nitrogen burner further comprises a key switch and a trigger part, the key switch is arranged outside the communicating part, and is used for controlling the start and stop of the dehumidifying device.
[0020] The switch member is in transmission connection with the trigger part, so as to drive the trigger part to approach and contact the key switch when extending out of the communicating channel, and drive the trigger part to move away and separate from the key switch when retracting into the communicating channel.
[0021] In an embodiment, the trigger part is arranged at one end of the sliding plate close to the connecting member, and when the closing area moves to the communicating channel, the sliding plate drives the trigger part to move away and separate from the key switch, and when the opening area moves to the communicating channel, the sliding plate drives the trigger part to approach and contact the key switch.
[0022] The utility model discloses still provide a kind of gas equipment, including the low-nitrogen burner, the low-nitrogen burner includes:
[0023] Shell, with a combustion chamber, and the fire hole of the communication combustion chamber;
[0024] Nozzle, along the depth direction of the fire hole, can be movably installed at the fire hole, to be able to extend outside the combustion chamber on the activity stroke, and be stored in the combustion chamber;And,
[0025] Dehumidification device, including blowing assembly, the blowing assembly is set to be able to blow in the combustion chamber, so that blowing airflow blows out from the fire hole.
[0026] The utility model discloses technical scheme is when nozzle is retracted to the combustion chamber, using blowing assembly to blow in the combustion chamber, so that gas constantly leaves from the opening of nozzle, to constantly take away water vapor, carry out quick drying treatment to residual condensate in shell, improve the use performance of low-nitrogen burner. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to the structure shown in these drawings.
[0028] Figure 1 The structural schematic diagram of the low-nitrogen burner of the utility model provides an embodiment;
[0029] Figure 2 For Figure 1 The structural schematic diagram of another angle of low-nitrogen burner;
[0030] Figure 3 For Figure 1 The structural schematic diagram of shell;
[0031] Figure 4 For Figure 1 The structural schematic diagram of communication part and switch;
[0032] Figure 5 For Figure 1 The structural schematic diagram of key switch.
[0033] Explanation of reference numerals:
[0034] 100, low-nitrogen burner;
[0035] 1, shell;11, combustion chamber;12, fire hole;13, communication port;
[0036] 2. Nozzle
[0037] 3. Dehumidifying device; 31, air blowing assembly; 32, heating assembly; 33, connecting piece
[0038] 4. Connecting part; 41, connecting passage
[0039] 5. Switching piece; 51, closed area; 52, opening area
[0040] 6. Key switch
[0041] 7. Trigger part
[0042] 8. Control panel
[0043] 9. Timer
[0044] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION
[0045] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0046] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.
[0047] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0048] The low-nitrogen burner is a device that increases the blower, the induced draft fan, the frequency converter, the control valve and multiple circuits to integrate the clean energy and the burner to provide more efficient heat energy for the boiler. The semi-premixed staged combustion low-nitrogen burner is a device that increases the blower, the induced draft fan, the frequency converter, the control valve and multiple circuits to integrate the clean energy and the burner to provide more efficient heat energy for the boiler. After the use of the traditional semi-premixed staged combustion low-nitrogen burner, the nozzle part will have a relatively high temperature, and if the user does not pay attention, touching the nozzle will cause burns, which has a certain safety hazard.
[0049] In order to solve the above technical problems, the nozzle 2 is stored after use to prevent the user from being scalded by the residual temperature of the nozzle 2. However, the nozzle 2 is stored in the above-mentioned patent during use, and the low-nitrogen burner 100 is easy to leave water vapor after combustion, and the moisture is easy to erode the equipment inside, which reduces the use performance of the low-nitrogen burner 100.
[0050] In order to solve the above technical problems, as shown in Figures 1 to 5 The utility model discloses a low-nitrogen burner 100, including casing 1, nozzle 2 and dehumidification device 3. The casing 1 has a combustion chamber 11 and a fire hole 12 communicating with the combustion chamber 11, the nozzle 2 is movably installed at the fire hole 12 along the depth direction of the fire hole 12, and can be extended to the combustion chamber 11 and stored in the combustion chamber 11, the dehumidification device 3 includes a blowing assembly 31, which is arranged to blow air into the combustion chamber 11, so that the air flow is blown out of the fire hole 12.
[0051] The utility model discloses a technical scheme through when the nozzle 2 is retracted to the combustion chamber 11, utilize the air -blowing subassembly to the combustion chamber 11 carry out blowing, make the airflow constantly leave from the opening of nozzle 2, to constantly take away the water vapor, carry out the quick drying treatment to the residual condensate in the casing 1, improve the use performance of low nitrogen combustor 100.
[0052] It can be understood that the air blowing assembly 31 can be provided as a blower, an electric fan or a compressor.
[0053] It can be understood that the nozzle 2 can be moved in the depth direction of the fire hole 12 by a mechanical device (such as a slide rail, a connecting rod and a rotating shaft).
[0054] In an embodiment, the dehumidifying device 3 further comprises a heating assembly 32, which is used to heat the airflow blown by the air blowing assembly 31.
[0055] In this way, the airflow blown by the air blowing assembly 31 is heated by the heating assembly 32, and the heated airflow has a higher temperature. The airflow with a higher temperature can carry more moisture, so when the heated airflow contacts the water vapor in the combustion chamber 11, it can more effectively absorb the moisture therein, improving the dehumidifying efficiency.
[0056] It can be understood that the heating assembly 32 can heat the airflow blown by the air blowing assembly 31 by electric heating (using an electric heating wire, a resistance heating element or a ceramic heating element. These elements are heated by electric current to generate heat, which in turn heats the airflow blown by the air blowing assembly 31), infrared heating (directly heating the airflow by infrared radiation, with fast heating speed) or heat pipe heating (by introducing an external heat source to the airflow to be heated). The specific heating method can be set according to actual needs, and is not particularly limited here.
[0057] In an embodiment, the dehumidifying device 3 is arranged outside the casing 1; the casing 1 is provided with a communication port 13 communicating with the combustion chamber 11; and the dehumidifying device 3 communicates with the communication port 13.
[0058] In this way, the airflow blown by the air blowing assembly can be more likely to be introduced into the combustion chamber 11 through the communication channel 41, reducing the loss of airflow, thereby improving the blowing effect.
[0059] It can be understood that the heat generated by the heating assembly 32 can be more likely to be transferred to the airflow of the air blowing assembly through the communication channel 41, reducing the loss of heat, thereby improving the drying effect.
[0060] It can be understood that the dehumidifying device 3 is arranged outside the shell 1, which can reduce the complexity inside the shell 1, and facilitate maintenance and inspection. Therefore, the dehumidifying device 3 can be arranged on any one of the front side, the rear side, the left side, the right side, the upper side, or the lower side of the shell 1. The specific arrangement direction can be set according to actual needs, and is not particularly limited here.
[0061] In an embodiment, a communication part 4 is arranged between the dehumidifying device 3 and the communication port 13. The communication part 4 is provided with a communication channel 41 that communicates the dehumidifying device 3 and the communication port 13. The communication channel 41 is provided with a switch part 5 that controls the opening and closing of the communication channel 41.
[0062] In this way, by arranging the switch part 5, when the nozzle 2 is extended into the combustion chamber 11, the communication port 13 is closed, so that the gas in the combustion chamber 11 cannot overflow from the communication port 13, ensuring normal combustion. When the nozzle 2 is retracted into the combustion chamber 11, the communication port 13 is opened, so that the airflow of the blowing assembly can blow the combustion chamber 11, ensuring normal dehumidification.
[0063] It can be understood that the switch part 5 can be arranged in the communication channel 41 by sliding, stretching, or rotating, and is not particularly limited here.
[0064] In an embodiment, the switch part 5 is movably arranged in the communication channel 41. On the movement stroke, the switch part 5 can be extended out of the communication channel 41 and retracted into the communication channel 41. The nozzle 2 is in transmission connection with the switch part 5, so as to drive the switch part 5 to be extended out of the communication channel 41 when the nozzle 2 is extended out of the combustion chamber 11, and drive the switch part 5 to be retracted into the communication channel 41 when the nozzle 2 is retracted into the combustion chamber 11.
[0065] In this way, by the transmission connection between the switch part 5 and the nozzle 2, the movement of the nozzle 2 and the switch part 5 can be performed at the same time, improving the work efficiency.
[0066] It can be understood that the transmission connection can be a mechanical linkage mechanism, a gear and rack transmission, or a slider-crank mechanism, and is not particularly limited here.
[0067] In an embodiment, the switch member 5 is arranged as a sliding plate, which is slidingly installed along a first direction of the cross section of the communication passage 41, and the sliding plate is sequentially provided with a closing area 51 and an opening area 52 along the first direction, and in the active stroke, the closing area 51 can be moved to the communication passage 41 to close the communication passage 41, or the opening area 52 can be moved to the communication passage 41 to open the communication passage 41.
[0068] In this way, by arranging the switch member 5 as a sliding plate and sliding along the first direction of the cross section of the communication passage 41, the communication passage 41 can be flexibly opened and closed. Only the sliding plate needs to be moved to change the state of the communication passage 41, making the operation simple and direct. The positions of the closing area 51 and the opening area 52 enable the user to intuitively understand the current state of the passage, thereby improving the accuracy of the operation.
[0069] In addition, it is worth mentioning that since the sliding plate is slidingly installed along the cross section of the communication passage 41, it can adapt to communication passages 41 of different shapes and sizes. Whether the passage is circular, square or of other shapes, the sliding plate can be adjusted in shape and size to match, thereby achieving effective closing and opening.
[0070] In an embodiment, the dehumidifying device 3 further comprises a connecting member 33, and one end of the sliding plate is connected to the nozzle 2 through the connecting member 33.
[0071] In this way, the connecting member 33 can transmit the force when the nozzle 2 moves, so that the nozzle 2, the connecting member 33 and the sliding plate move synchronously, ensuring the consistency of the movement.
[0072] It can be understood that the connecting member 33 can be a hard structure elongated in the first direction, and the specific shape can be block-shaped, rod-shaped or plate-shaped, which is not particularly limited here; and the number of connecting members 33 can also be multiple.
[0073] In an embodiment, the low-nitrogen burner 100 further comprises a key switch 6 and a trigger portion 7, the key switch 6 is arranged outside the communication portion 4 to control the start and stop of the dehumidifying device 3, and the switch member 5 is in transmission connection with the trigger portion 7 to drive the trigger portion 7 to approach and contact the key switch 6 when the communication passage 41 is extended outward, and to drive the trigger portion 7 to move away from and away from the key switch 6 when the communication passage 41 is retracted inward.
[0074] In this way, the start and stop of the dehumidifying device 3 are indirectly controlled by the movement of the switch member 5, realizing automatic operation.
[0075] It can be understood that the trigger part 7 can be provided as a hard structure, and the specific shape can be block-shaped, rod-shaped or plate-shaped, which is not particularly limited here.
[0076] In an embodiment, the trigger part 7 is arranged at one end of the slide plate close to the connecting piece 33, and when the closed area 51 moves to the communication passage 41, the slide plate drives the trigger part 7 to move away from and be separated from the key switch 6; and when the opening area 52 moves to the communication passage 41, the slide plate drives the trigger part 7 to move close to and contact the key switch 6.
[0077] In this way, when the closed area 51 on the slide plate moves to the position of the communication passage 41, the slide plate drives the trigger part 7 to move away from the key switch 6. At this time, the key switch 6 is not activated, and the dehumidifying device 3 is in the closed state. When the opening area 52 on the slide plate moves to the position of the communication passage 41, the slide plate drives the trigger part 7 to move close to and contact the key switch 6. At this time, the key switch 6 is activated, and the dehumidifying device 3 starts to work. The start and stop of the dehumidifying device 3 can be indirectly controlled through the nozzle 2, and the operation steps are reduced.
[0078] In an embodiment, the low-nitrogen combustor 100 further comprises a control panel 8 electrically connected with the key switch 6. In this way, the working state of the dehumidifying device 3 can be set in advance through the control panel 8.
[0079] In an embodiment, the low-nitrogen combustor 100 further comprises a timer 9 electrically connected with the key switch 6. In this way, the working time of the dehumidifying device 3 can be set in advance through the timer 9.
[0080] The utility model also proposes a kind of gas equipment, which comprises low-nitrogen combustor 100, and the specific structure of the low-nitrogen combustor 100 refers to the above embodiment, since the gas equipment of the present application adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.
[0081] The above is only an exemplary embodiment of the utility model, and does not limit the patent scope of the utility model, any equivalent structural transformation made by using the utility model specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the utility model.
Claims
1. A low-nitrogen burner, characterized by, The low-nitrogen burner comprises: a housing having a combustion chamber and a fire hole communicating with the combustion chamber; a nozzle movably mounted at the fire hole along a depth direction of the fire hole to be able to extend out of the combustion chamber and be accommodated into the combustion chamber in a movement stroke; a dehumidifying device comprising a blowing assembly arranged to be able to blow air into the combustion chamber so that the air flow is blown out of the fire hole. The dehumidifying device further comprises a heating assembly arranged to be able to heat the air flow blown by the blowing assembly.
2. The low NOx burner of claim 1 wherein, The dehumidifying device is arranged outside the housing; 3. A low NOx burner as claimed in claim 1 or 2, characterised in that The housing is provided with a communication port communicating with the combustion chamber; The dehumidifying device is in communication with the communication port. A communication part is arranged between the dehumidifying device and the communication port, and the communication part is provided with a communication channel communicating the dehumidifying device and the communication port; 4. The low NOx burner of claim 3 wherein, The communication channel is provided with a switching piece arranged to control the opening and closing of the communication channel. The switching piece is movably arranged in the communication channel, and in the movement stroke, the switching piece is able to extend out of the communication channel and be accommodated into the communication channel; 5. The low NOx burner of claim 4 wherein, The nozzle is in transmission connection with the switching piece, and when extending out of the combustion chamber, the nozzle drives the switching piece to extend out of the communication channel, and when being accommodated into the combustion chamber, the nozzle drives the switching piece to be accommodated into the communication channel. The switching piece is arranged as a sliding plate slidably mounted in the communication channel along a first direction of a cross section of the communication channel, and a closing area and an opening area are arranged in sequence along the first direction on the sliding plate, and in the movement stroke, the closing area is able to move to the communication channel to close the communication channel, or the opening area is able to move to the communication channel to open the communication channel.
6. The low NOx burner of claim 5 wherein, The dehumidifying device further comprises a connecting piece, and one end of the sliding plate is connected with the nozzle through the connecting piece. The low-nitrogen burner further comprises a key switch and a trigger part, the key switch is arranged outside the communication part to control the start and stop of the dehumidifying device; 7. The low NOx burner of claim 6 wherein, The switching piece is in transmission connection with the trigger part, and when extending out of the communication channel, the switching piece drives the trigger part to approach and contact the key switch, and when being accommodated into the communication channel, the switching piece drives the trigger part to move away from and be separated from the key switch.
8. The low NOx burner of claim 7 wherein, The trigger part is arranged at one end of the sliding plate close to the connecting piece, and when the closing area moves to the communication channel, the sliding plate drives the trigger part to move away from and be separated from the key switch, and when the opening area moves to the communication channel, the sliding plate drives the trigger part to approach and contact the key switch. The low-nitrogen burner comprises any one of claims 1 to 9.
9. The low NOx burner of claim 8 wherein, 10. A gas appliance characterised in that,