Low-nitrogen burner and gas equipment

Abstract

The invention discloses a low-nitrogen combustor and fuel gas equipment, and relates to the technical field of fuel gas equipment, and the low-nitrogen combustor comprises a shell, a nozzle and a dehumidification device. The shell is provided with a combustion cavity and a fire hole communicated with the combustion cavity; the nozzle can be movably mounted at the fire hole in the depth direction of the fire hole, so that the nozzle can extend out of the combustion cavity and can be accommodated in the combustion cavity in the moving stroke; the dehumidification device comprises an air blowing assembly, and the air blowing assembly is arranged to be capable of blowing air into the combustion cavity so that blowing airflow can be blown out from the fire opening. According to the technical scheme, residual condensed water vapor in the shell is rapidly dried, and the use performance of the low-nitrogen combustor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas equipment, and in particular to a low-nitrogen burner and gas equipment. Background Art

[0002] A low-nitrogen burner is a device that adds a blower, induced draft fan, inverter, control valve and multiple circuits to a traditional burner, allowing clean energy and burner operations to provide more efficient heat energy for the boiler. A semi-premixed staged combustion low-nitrogen burner is a device that adds a blower, induced draft fan, inverter, control valve and multiple circuits to a traditional burner, allowing clean energy and burner operations to provide more efficient heat energy for the boiler. After the traditional semi-premixed staged combustion low-nitrogen burner is used, a relatively high temperature will remain in the nozzle. If the user is not careful, touching the nozzle will cause burns, posing certain safety hazards.

[0003] In order to solve the above technical problems, the prior art stores the nozzle after use to prevent the residual temperature of the nozzle from causing burns to the user. However, the above patent stores the nozzle inside when in use, and the low-nitrogen burner is prone to residual water vapor after combustion, and moisture is also easy to corrode the equipment inside, reducing the performance of the low-nitrogen burner. Summary of the invention

[0004] The main purpose of the present invention is to provide a low-nitrogen burner and a gas equipment, aiming to quickly dry the condensed water vapor remaining in the shell and improve the performance of the low-nitrogen burner.

[0005] To achieve the above object, the present invention provides a low nitrogen burner, comprising:

[0006] The shell has a combustion chamber and a fire port connected to the combustion chamber;

[0007] a nozzle, movably mounted at the burner along the depth direction of the burner, so as to be able to extend out of the combustion chamber and be received in the combustion chamber during a movable stroke; and

[0008] The dehumidification device comprises an air blowing assembly, wherein the air blowing assembly is configured to blow air into the combustion chamber so that the air flow is blown out from the fire port.

[0009] In one embodiment, the dehumidification device further includes a heating component, and the heating component is used to heat the airflow blown out by the blowing component.

[0010] In one embodiment, the dehumidification device is arranged outside the housing;

[0011] The shell is provided with a communication port connected to the combustion chamber;

[0012] The dehumidification device is communicated with the communication port.

[0013] In one embodiment, a communication portion is provided between the dehumidification device and the communication port, and the communication portion is provided with a communication passage connecting the dehumidification device and the communication port;

[0014] The communication channel is provided with a switch component, and the switch component is used to control the on and off of the communication channel.

[0015] In one embodiment, the switch member is movably disposed in the communication channel, and the switch member can extend out of the communication channel and retract into the communication channel during a movable stroke;

[0016] The nozzle is in transmission connection with the switch member, so as to drive the switch member to extend out of the communication passage when extending out of the combustion chamber, and to drive the switch member to retract into the communication passage when being received into the combustion chamber.

[0017] In one embodiment, the switch member is configured as a slide plate, which is slidably installed on the connecting channel along a first direction of the cross-section of the connecting channel. The closed area and the open area are sequentially arranged on the slide plate along the first direction. In the active stroke, the closed area can be moved to the connecting channel to close the connecting channel; or the open area can be moved to the connecting channel to open the connecting channel.

[0018] In one embodiment, the dehumidification device further includes a connecting member, and one end of the slide plate is connected to the nozzle via the connecting member.

[0019] In one embodiment, the low nitrogen burner further includes a key switch and a trigger part, wherein the key switch is arranged on the outside of the connecting part to control the start and stop of the dehumidification device;

[0020] The switch member is in transmission connection with the trigger portion, and is used for driving the trigger portion to approach and contact the key switch when extending out of the communication channel, and retracting into the communication channel to drive the trigger portion to move away from and disengage from the key switch.

[0021] In one embodiment, the trigger portion is disposed at one end of the slide plate close to the connecting member, and when the slide plate moves from the closed area to the connecting channel, the trigger portion is driven to move away from and disengage from the push switch; when the slide plate moves from the open area to the connecting channel, the trigger portion is driven to approach and contact the push switch.

[0022] The present invention further provides a gas equipment, comprising the low-nitrogen burner, wherein the low-nitrogen burner comprises:

[0023] The shell has a combustion chamber and a fire port connected to the combustion chamber;

[0024] a nozzle, movably mounted at the burner along the depth direction of the burner, so as to be able to extend out of the combustion chamber and be received in the combustion chamber during a movable stroke; and

[0025] The dehumidification device comprises an air blowing assembly, wherein the air blowing assembly is configured to blow air into the combustion chamber so that the air flow is blown out from the fire port.

[0026] The technical solution of the present invention utilizes a blowing assembly to blow air into the combustion chamber when the nozzle is retracted into the combustion chamber, so that gas continuously leaves from the opening of the nozzle, thereby continuously taking away water vapor, and quickly drying the condensed water vapor remaining in the shell, thereby improving the performance of the low-nitrogen burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A schematic structural diagram of an embodiment of a low nitrogen burner provided by the present invention;

[0029] Figure 2 for Figure 1 Another structural diagram of the low-nitrogen burner from another angle;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of the middle shell;

[0031] Figure 4 for Figure 1 A schematic diagram of the structure of the middle connecting part and the switch member;

[0032] Figure 5 for Figure 1 Schematic diagram of the structure of the middle button switch.

[0033] Description of Figure Numbers:

[0034] 100. Low nitrogen burner;

[0035] 1. Shell; 11. Combustion chamber; 12. Fire port; 13. Communication port;

[0036] 2. Nozzle;

[0037] 3. Dehumidification device; 31. Air blowing assembly; 32. Heating assembly; 33. Connecting piece;

[0038] 4. connecting portion; 41. connecting channel;

[0039] 5. switch element; 51. closing area; 52. opening area;

[0040] 6. Push button switch;

[0041] 7. Trigger unit;

[0042] 8. Control panel;

[0043] 9. Timer.

[0044] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention 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 status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] A low-nitrogen burner is a device that adds a blower, induced draft fan, inverter, control valve and multiple circuits to a traditional burner, allowing clean energy and burner operations to provide more efficient heat energy for the boiler. A semi-premixed staged combustion low-nitrogen burner is a device that adds a blower, induced draft fan, inverter, control valve and multiple circuits to a traditional burner, allowing clean energy and burner operations to provide more efficient heat energy for the boiler. After the traditional semi-premixed staged combustion low-nitrogen burner is used, a relatively high temperature will remain in the nozzle. If the user is not careful, touching the nozzle will cause burns, posing certain safety hazards.

[0049] In order to solve the above technical problems, the prior art stores the nozzle 2 after use to prevent the residual temperature of the nozzle 2 from causing burns to the user. However, the above patent stores the nozzle 2 inside during use, and the low-nitrogen burner 100 is prone to residual water vapor after the combustion is completed, and the moisture is also easy to corrode the equipment inside, reducing the performance of the low-nitrogen burner 100.

[0050] In order to solve the above technical problems, Figures 1 to 5 As shown, a low nitrogen burner 100 proposed by the present invention includes a shell 1, a nozzle 2, and a dehumidification device 3. The shell 1 has a combustion chamber 11 and a burner 12 connected to the combustion chamber 11; the nozzle 2 can be movably installed at the burner 12 along the depth direction of the burner 12, so that it can extend out of the combustion chamber 11 and be received in the combustion chamber 11 in the movable stroke; the dehumidification device 3 includes a blowing component 31, and the blowing component 31 is configured to blow air into the combustion chamber 11 so that the blowing airflow is blown out from the burner 12.

[0051] The technical solution of the present invention is to use a blowing assembly to blow air into the combustion chamber 11 when the nozzle 2 is retracted into the combustion chamber 11, so that the air flow continuously leaves from the opening of the nozzle 2, thereby continuously taking away water vapor, and quickly drying the condensed water vapor remaining in the shell 1, thereby improving the performance of the low-nitrogen burner 100.

[0052] It can be understood that the air blowing component 31 can be configured as a blower, an electric fan, or a compressor.

[0053] It is understandable that the nozzle 2 can be moved in the depth direction of the fire port 12 by means of a mechanical device (such as a slide rail, a connecting rod, and a rotating shaft).

[0054] In one embodiment, the dehumidification device 3 further includes a heating component 32 , and the heating component 32 is used to heat the airflow blown out by the blowing component 31 .

[0055] In this arrangement, the airflow blown out by the blowing component 31 is heated by the heating component 32. The heated airflow has a higher temperature, and the airflow with a higher temperature can carry more moisture. Therefore, when the heated airflow contacts the water vapor in the combustion chamber 11, it can more effectively absorb the moisture therein, thereby improving the dehumidification efficiency.

[0056] It can be understood that the heating component 32 is heated by electricity (using electric heating wires, resistance heating elements or ceramic heating elements. These elements are heated by electric current to generate heat, and then heat the airflow blown out by the blowing component 31), infrared heating (directly heating the airflow by infrared radiation, with a fast heating speed), or heat pipe heating (by introducing an external heat source into the airflow to be heated). The specific method of use can be set according to actual needs and is not particularly limited here.

[0057] In one embodiment, the dehumidification device 3 is disposed outside the shell 1 ; a communication port 13 communicating with the combustion chamber 11 is disposed on the shell 1 ; and the dehumidification device 3 is communicated with the communication port 13 .

[0058] With such arrangement, the airflow blown out by the blowing assembly can be introduced into the combustion chamber 11 as much as possible through the connecting channel 41, thereby reducing the loss of airflow and improving the blowing effect.

[0059] It can be transferred that the heat generated by the heating component 32 can be transferred to the airflow of the blowing component as much as possible through the connecting channel 41, thereby reducing heat loss and improving the drying effect.

[0060] It is understandable that arranging the dehumidification device 3 outside the housing 1 can reduce the complexity of the interior of the housing 1 and facilitate maintenance and inspection. Therefore, the dehumidification device 3 can be arranged on any side of the front side, rear side, left side, right side, upper side, or lower side of the housing 1. The specific arrangement direction can be arranged according to actual needs and is not particularly limited here.

[0061] In one embodiment, a connecting portion 4 is provided between the dehumidification device 3 and the connecting port 13, and the connecting portion 4 is provided with a connecting channel 41 connecting the dehumidification device 3 and the connecting port 13; the connecting channel 41 is provided with a switch component 5, and the switch component 5 is used to control the opening and closing of the connecting channel 41.

[0062] In this way, by setting the switch member 5, when the nozzle 2 is extended from the combustion chamber 11, the connecting port 13 is closed, so that the gas in the combustion chamber 11 will not overflow from the connecting port 13, thereby ensuring normal combustion; when the nozzle 2 is retracted into the combustion chamber 11, the connecting port 13 is opened, so that the airflow of the blowing assembly can blow air into the combustion chamber 11, thereby ensuring normal dehumidification.

[0063] It is understandable that the switch member 5 can be disposed in the communication channel 41 by sliding, telescopic, or rotating, which is not particularly limited herein.

[0064] In one embodiment, the switch member 5 is movably arranged in the connecting passage 41, and the switch member 5 can extend out of the connecting passage 41 and retract into the connecting passage 41 during the movable stroke; the nozzle 2 is transmission-connected to the switch member 5, so as to drive the switch member 5 to extend out of the connecting passage 41 when extending out of the combustion chamber 11, and to drive the switch member 5 to retract into the connecting passage 41 when being received in the combustion chamber 11.

[0065] With such arrangement, the switch member 5 is connected to the nozzle 2 through transmission, so that the movement of the nozzle 2 and the switch member 5 can be performed simultaneously, thereby improving work efficiency.

[0066] It is understandable that the transmission connection method can be set as a mechanical linkage mechanism, a gear rack transmission, or a slider crank mechanism, which is not particularly limited here.

[0067] In one embodiment, the switch member 5 is configured as a slide plate, which is slidably installed on the connecting channel 41 along a first direction of the cross section of the connecting channel 41, and the closing area 51 and the opening area 52 are sequentially arranged on the slide plate along the first direction. In the active stroke, the closing area 51 can move to the connecting channel 41 to close the connecting channel 41; or the opening area 52 can move to the connecting channel 41 to open the connecting channel 41.

[0068] In this way, by setting the switch member 5 as a slide plate, so that it slides along the first direction of the cross section of the communication channel 41, the communication channel 41 can be flexibly opened and closed. The state of the communication channel 41 can be changed by simply moving the slide plate, making the operation simple and direct. Through the positions of the closed area 51 and the open area 52, the user can intuitively understand the state of the current channel, thereby improving the accuracy of the operation.

[0069] In addition, it is worth mentioning that since the slide plate is installed to slide along the cross section of the communication channel 41, it can adapt to communication channels 41 of different shapes and sizes. Whether it is a circular, square or other shaped channel, it can be matched by adjusting the shape and size of the slide plate, thereby achieving effective closure and opening.

[0070] In one embodiment, the dehumidification device 3 further includes a connecting member 33 , and one end of the slide plate is connected to the nozzle 2 via the connecting member 33 .

[0071] With such arrangement, the connecting member 33 can transmit force when the nozzle 2 moves, so that the nozzle 2, the connecting member 33, and the slide plate move synchronously, thereby ensuring the consistency of movement.

[0072] It is understandable that the connecting member 33 can be a hard structure extending in the first direction, and its specific shape can be block-shaped, rod-shaped, or plate-shaped, which is not particularly limited here; at the same time, the number of connecting members 33 can also be set to multiple.

[0073] In one embodiment, the low-nitrogen burner 100 also includes a push button switch 6 and a trigger part 7. The push button switch 6 is arranged on the outside of the connecting part 4 to control the start and stop of the dehumidification device 3; the switch component 5 is transmission-connected to the trigger part 7 to drive the trigger part 7 to approach and contact the push button switch 6 when extending out of the connecting channel 41, and to retract into the connecting channel 41 to drive the trigger part 7 to move away from and disengage from the push button switch 6.

[0074] With such arrangement, the start and stop of the dehumidification device 3 are indirectly controlled by the movement of the switch member 5, thereby realizing automatic operation.

[0075] It is understandable that the trigger part 7 can be set as a hard structure, and its specific shape can be block-shaped, rod-shaped, or plate-shaped, which is not particularly limited here.

[0076] In one embodiment, the trigger portion 7 is disposed at one end of the slide plate close to the connecting member 33 , and when the slide plate moves from the closed area 51 to the connecting channel 41 , the trigger portion 7 is driven to move away from and disengage from the push switch 6 ; when the slide plate moves from the open area 52 to the connecting channel 41 , the trigger portion 7 is driven to approach and contact the push switch 6 .

[0077] In this way, when the closed area 51 on the slide moves to the position of the connecting passage 41, the slide will drive the trigger part 7 away from the key switch 6. At this time, the key switch 6 is not activated, and the dehumidifier 3 is in the closed state. When the open area 52 on the slide moves to the position of the connecting passage 41, the slide will drive the trigger part 7 to approach and contact the key switch 6. At this time, the key switch 6 is activated, and the dehumidifier 3 starts to work. The start and stop of the dehumidifier 3 can be indirectly controlled by the nozzle 2, which reduces the operation steps.

[0078] In one embodiment, the low nitrogen burner 100 further includes a control panel 8, and the control panel 8 is electrically connected to the key switch 6. In this way, the working state of the dehumidification device 3 can be set in advance through the control panel 8.

[0079] In one embodiment, the low nitrogen burner 100 further includes a timer 9 electrically connected to the key switch 6. In this way, the working time of the dehumidification device 3 can be set in advance by the timer 9.

[0080] The present invention also proposes a gas device, which includes a low-nitrogen burner 100. The specific structure of the low-nitrogen burner 100 refers to the above-mentioned embodiment. Since the gas device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0081] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A low nitrogen burner, characterized in that: include: The shell has a combustion chamber and a fire port connected to the combustion chamber; A nozzle is movably mounted at the burner along the depth direction of the burner so as to be able to extend out of the combustion chamber and be received in the combustion chamber during a movable stroke; as well as, The dehumidification device comprises an air blowing assembly, wherein the air blowing assembly is configured to blow air into the combustion chamber so that the air flow is blown out from the fire port.

2. The low nitrogen burner according to claim 1, characterized in that: The dehumidification device also includes a heating component, and the heating component is used to heat the airflow blown out by the blowing component.

3. The low nitrogen burner according to claim 1 or 2, characterized in that: The dehumidification device is arranged outside the housing; The shell is provided with a communication port connected to the combustion chamber; The dehumidification device is communicated with the communication port.

4. The low nitrogen burner according to claim 3, characterized in that: A communication portion is provided between the dehumidification device and the communication port, and the communication portion is provided with a communication passage connecting the dehumidification device and the communication port; The communication channel is provided with a switch component, and the switch component is used to control the on and off of the communication channel.

5. The low nitrogen burner according to claim 4, characterized in that: The switch member is movably arranged in the communication channel, and the switch member can extend out of the communication channel and retract into the communication channel during the movement. The nozzle is in transmission connection with the switch member, so as to drive the switch member to extend out of the communication passage when extending out of the combustion chamber, and to drive the switch member to retract into the communication passage when being received into the combustion chamber.

6. The low nitrogen burner according to claim 5, characterized in that: The switch member is configured as a slide plate, which is slidably mounted on the communication channel along a first direction of the cross section of the communication channel, and the closed area and the open area are sequentially arranged on the slide plate along the first direction. During the movable stroke, the closed area can move to the communication channel to close the communication channel; Alternatively, the opening area can be moved to the communicating passage to open the communicating passage.

7. The low nitrogen burner according to claim 6, characterized in that: The dehumidification device also includes a connecting piece, and one end of the slide plate is connected to the nozzle through the connecting piece.

8. The low nitrogen burner according to claims 4 to 7, characterized in that: The low nitrogen burner further comprises a key switch and a trigger part, wherein the key switch is arranged on the outside of the connecting part to control the start and stop operation of the dehumidification device; The switch member is in transmission connection with the trigger portion, and is used for driving the trigger portion to approach and contact the key switch when extending out of the communication channel, and retracting into the communication channel to drive the trigger portion to move away from and disengage from the key switch.

9. The low nitrogen burner according to claim 8, characterized in that: The trigger part is arranged at one end of the slide plate close to the connecting piece. When the slide plate moves to the connecting channel in the closed area, the trigger part is driven to move away from and disengage from the key switch; when the slide plate moves to the connecting channel in the open area, the trigger part is driven to approach and contact the key switch.

10. A gas equipment, characterized in that: Comprising a low nitrogen burner as described in any one of claims 1 to 9.

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