A premixed combustion device for combustion heating equipment

Abstract

The present invention provides a premixing combustion device for combustion and heating equipment, comprising a combustion chamber, a volatilization chamber arranged on one side of the upper part of the combustion chamber, an ignition device arranged at one end of the volatilization chamber away from the combustion chamber, an oil supply pipe arranged on one side of the volatilization chamber and connected to the volatilization chamber, an air inlet arranged on the side wall of the volatilization chamber and located between the oil supply pipe and the ignition device, a bottom plate arranged on the outer side of the combustion chamber and located below the volatilization chamber, and a dust removal device arranged on the bottom plate and matched with the air inlet. The premixing combustion device for combustion and heating equipment of the present invention is provided with a dust removal device matched with the air inlet, and the dust removal pin cooperates with the air inlet to effectively remove the blockage of the air inlet caused by dust, so that air can enter the volatilization chamber, which helps to mix the fuel with sufficient air, and further helps to ignite and burn the fuel. At the same time, the dust removal device is also provided with a reset device to facilitate the rapid reset of the dust removal pin to avoid the dust removal pin blocking the air inlet.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle air heating, and in particular to a premixed combustion device for combustion heating equipment. Background Art

[0002] Air fuel heater and liquid fuel heater are the main heating equipment for transport equipment or mobile equipment. At the same time, it is also the most widely used common heating mode at home and abroad. It is mainly used in family cars, buses, engineering vehicles and engineering machinery, various non- or fixed heat source equipment. At present, the heater structure commonly used at home and abroad is relatively similar, which mainly consists of a burner head, a combustion chamber, an exchanger, a switch control device, a fuel supply, a heat medium conversion medium power device, etc. It is mainly manifested in that when the power is turned on, the heater proceeds in an orderly manner according to the established action, and the fuel supply device mixes the fuel and air into a mixture with a certain combustion concentration, mainly fuel and oxygen molecules in the air, and sends it to the secondary mixing and combustion chamber through the main fan. The mixture is further matched with the fuel condition, that is, the contact area between the fuel and the oxygen-supporting molecules is increased. The ignition plug consumes electrical power to do work, so that the combustion conditions of the mixed combustion chamber are available. After the belt is ignited, the heat energy is transported to the heat exchange part of the exchanger through the main fan. After its heat absorption and heat release conversion process, finally, the heated medium (air, liquid) is provided by radiation, convection and heat conduction.

[0003] At present, the main reason why fuel heaters often lose their basic functions, i.e., fail to burn, is that the concentration of premixed fuel and oxygen molecules in the air is insufficient. This phenomenon occurs in both domestic and foreign products. From the volatile fuel structure to the present, the most advanced solution is to install a wind shield at the air inlet of the combustion chamber. Its working principle is to isolate the air carrying dust to reduce or reduce the possibility of blockage at the air inlet, so as to maintain the operation of the heater, but the effect of this structure is not obvious. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a premixing combustion device for combustion heating equipment.

[0005] The technical solution adopted by the present invention is: a premixed combustion device for combustion heating equipment, characterized in that it includes a shell, a combustion chamber arranged in the shell, a volatilization chamber arranged on one side of the upper part of the combustion chamber in the shell, an ignition device arranged at one end of the volatilization chamber away from the combustion chamber, an oil supply pipe arranged on one side of the volatilization chamber and connected to the volatilization chamber, an air inlet arranged on the side wall of the volatilization chamber and located between the oil supply pipe and the ignition device, a bottom plate arranged outside the combustion chamber and below the volatilization chamber, and a dust removal device arranged on the bottom plate and matched with the air inlet;

[0006] The dust removal device includes a positioning plate, a reset device arranged on the positioning plate, and a dust removal member arranged between the reset device and the air inlet and matched with the air inlet, the dust removal member includes a support plate vertically arranged on the positioning plate and parallel to the volatilization chamber, a dust removal pin sliding through the support plate and matched with the air inlet, and a positioning spring arranged on the side of the support plate away from the air inlet and sleeved on the outside of the dust removal pin, one end of the positioning spring is connected to the support plate, and the other end is connected to the end of the dust removal pin.

[0007] Furthermore, the reset device includes a tubular spring seat arranged on the positioning plate, a reset spring arranged outside the tubular spring seat and a rotating plate arranged outside the reset spring, and the dust removal member is arranged between the rotating plate and the air inlet.

[0008] Furthermore, an air guide device is provided on the upper part of the base plate, and the air guide device includes a first support column vertically passing through the middle part of the tubular spring seat and arranged on the positioning plate, a second support column arranged on the base plate on the other side of the volatilization chamber, and an air guide plate arranged on the upper part of the first support column and the second support column and spanning both sides of the volatilization chamber, the inner side of the air guide plate cooperates with the outer wall of the combustion chamber, and ventilation holes are provided on the air guide plate.

[0009] Furthermore, an air intake grille is provided at the ventilation hole.

[0010] Furthermore, an air filter device is provided on the outside of the combustion chamber on the base plate, and the air filter device includes an arc-shaped fixed plate arranged on the outside of the combustion chamber and a plurality of air filter plates arranged on the base plate counterclockwise along the combustion chamber, the air filter plate is V-shaped, and one end of the air filter plate is connected to the arc-shaped fixed plate.

[0011] Furthermore, the air filter plate includes an arc-shaped plate matched with the outer side of the bottom plate and a connecting plate arranged at one end of the arc-shaped plate and connected to the arc-shaped fixing plate.

[0012] Furthermore, the height of the arc-shaped fixing plate and the height of the air filter plate decrease successively in a counterclockwise direction along the combustion chamber.

[0013] Furthermore, the connecting plate is provided with dust collecting holes.

[0014] Furthermore, a carbon deposit cleaning device is provided at the junction of the volatilization chamber and the combustion chamber, and the carbon deposit cleaning device includes a cleaning piece arranged at the junction of the volatilization chamber and the combustion chamber, an angle plate arranged on the side of the rotating plate close to the volatilization chamber, and a balance plate arranged on the angle plate and matched with the cleaning piece, and the cleaning piece includes a fixed guide plate arranged on the outside of the volatilization chamber, a cleaning pin passing through the fixed guide plate and the side wall of the volatilization chamber and slidingly arranged at the junction of the volatilization chamber and the combustion chamber, and a return spring arranged on the outside of the volatilization chamber and sleeved on the outside of the cleaning pin.

[0015] Furthermore, a mounting hole is provided on the outer side of the shell near the free end of the rotating plate, and a cleaning drive member cooperating with the free end of the rotating plate is provided in the mounting hole, and a sealing plate is provided between the cleaning drive member and the shell, and the cleaning drive member includes a cylindrical shell, a push rod sliding through the cylindrical shell and cooperating with the rotating plate, a return spring arranged in the cylindrical shell and cooperating with the push rod, and a sealing member arranged in the cylindrical shell, the push rod includes a push pin portion sliding through one end of the cylindrical shell and cooperating with the rotating plate, a pressing portion sliding through the other end of the cylindrical shell, and a limit plate arranged at the intersection of the push pin portion and the pressing portion and slidingly cooperating with the cylindrical shell, the return spring is arranged on the side of the limit plate close to the rotating plate and is sleeved on the outside, an O-ring cooperating with the cylindrical shell is provided on the outer peripheral wall of the limit plate, and the sealing member is arranged at the end of the cylindrical shell away from the rotating plate, and the pressing portion slides through the sealing member.

[0016] The advantages and positive effects of the present invention are as follows: a premixing combustion device for combustion and heating equipment of the present invention is provided with a dust removal device matched with the air inlet. The dust removal pin cooperates with the air inlet to effectively remove the blockage of the air inlet caused by dust, which facilitates the entry of air into the volatilization chamber, helps to mix the fuel with sufficient air, and further helps to ignite and burn the fuel. At the same time, the dust removal device is also provided with a reset device to facilitate the rapid reset of the dust removal pin to avoid the dust removal pin blocking the air inlet.

[0017] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solution, and the advantages brought by the technical features of the technical solution described above, other technical problems that can be solved by the present invention, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention provides a schematic structural diagram of a premixed combustion device for combustion and heating equipment;

[0019] Figure 2 is a top view of a dust removal device provided by an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of a reset device provided by an embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of the structure of the air guide device and the ventilation hole provided in an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of the air intake grille structure provided by an embodiment of the present invention;

[0023] Figure 6 is a schematic structural diagram of an air filter device provided by an embodiment of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the air filter plate provided in an embodiment of the present invention;

[0025] Figure 8 It is a schematic diagram of the dust suction hole structure provided by an embodiment of the present invention;

[0026] Fig. 9 is a structural schematic diagram of a carbon deposit cleaning device provided in an embodiment of the present invention;

[0027] Fig.10 It is a schematic diagram of the structure of a cleaning piece provided by an embodiment of the present invention;

[0028] Fig.11 is a schematic diagram of a mounting hole, a cleaning drive member and a sealing plate provided in an embodiment of the present invention;

[0029] Fig.12 It is a schematic diagram of the structure of a cleaning drive member provided in an embodiment of the present invention.

[0030] In the figure: 1 combustion chamber; 2 volatilization chamber; 3 ignition device; 4 oil supply pipe; 5 air inlet; 6 bottom plate; 7 dust removal device; 710 positioning plate; 720 reset device; 721 tubular spring seat; 722 reset spring; 723 rotating plate; 730 dust removal member; 731 support plate; 732 dust removal pin; 733 positioning spring; 8 wind guide device; 810 first support column; 820 second support column; 830 wind guide plate; 831 ventilation hole; 831a air inlet grille; 9 wind filter device; 910 arc-shaped fixing plate; 920 air filter plate; 921 arc-shaped plate; 922 connecting plate; 10 dust inlet hole; 11 carbon deposit cleaning device; 12 cleaning member; 13 angle plate; 14 balance plate; 15 fixed guide plate; 16 cleaning pin; 17 return spring; 18 housing; mounting hole 19; 20 cleaning drive member; 21 sealing plate; 22 cylindrical housing; 23 ejector rod; 23a ejector pin portion; 23b pressing portion; 23c limit plate; 24 return spring; 25 sealing member; 26 O-ring DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] like Figure 1 and Figure 2As shown, a premixed combustion device for combustion heating equipment is characterized in that it includes a shell 18, a combustion chamber 1 arranged in the shell 18, a volatilization chamber 2 arranged on one side of the upper part of the combustion chamber 1 in the shell 18, an ignition device 3 arranged at one end of the volatilization chamber 2 away from the combustion chamber 1, an oil supply pipe 4 arranged on one side of the volatilization chamber 2 and connected to the volatilization chamber 2, an air inlet 5 arranged on the side wall of the volatilization chamber 2 and located between the oil supply pipe 4 and the ignition device 3, a bottom plate 6 arranged outside the combustion chamber 1 and below the volatilization chamber 2, and a dust removal device 7 arranged on the bottom plate 6 and matched with the air inlet 5;

[0034] The dust removal device 7 includes a positioning plate 710, a reset device 720 arranged on the positioning plate 710, and a dust removal member 730 arranged between the reset device 720 and the air inlet hole 5 and matched with the air inlet hole 5, the dust removal member 730 includes a support plate 731 vertically arranged on the positioning plate 710 and parallel to the volatilization chamber 2, a dust removal pin 732 sliding through the support plate 731 and matching with the air inlet hole 5, and a positioning spring 733 arranged on the side of the support plate 731 away from the air inlet hole 5 and sleeved on the outside of the dust removal pin 732, one end of the positioning spring 733 is connected to the support plate 731, and the other end is connected to the end of the dust removal pin 732.

[0035] In this embodiment, the premix combustion device is the main component of the fuel heater, which is arranged in the shell 18. The air inlet of the fuel heater is arranged on the shell 18 of the fuel heater at the upper part of the combustion chamber. In this embodiment, the dust removal device 7 is a key component of the premix combustion device. The dust removal device 7 is provided with a positioning plate 710, a reset device 720 and a dust removal member 730. The positioning plate 710 is a basic component of the dust removal device 7. The reset device 720 and the dust removal member 730 are arranged on the positioning plate 710. The positioning plate 710 is convenient for fixing the reset device 720 and the dust removal member 730 in appropriate positions, so that the dust removal member 730 can cooperate with the air inlet 5. In this embodiment, one end of the reset device 720 is fixed on the positioning plate 710, and the other end is movably arranged at one end of the air inlet 5 of the volatilization chamber 2. The dust removal member 730 is arranged between the reset device 720 and the air inlet The dust removal member 730 cooperates with the air inlet hole 5. In the present embodiment, the dust removal member 730 includes a support plate 731, a dust removal pin 732 and a positioning spring 733. The support and guide structure of the dust removal pin of the support plate is vertically arranged on the positioning plate and parallel to the volatilization chamber 2. The dust removal pin 731 slides through the support plate and cooperates with the air inlet hole 5. In the present embodiment, a brim is provided at the end of the dust removal pin away from the air inlet hole. The positioning spring is arranged between the brim of the dust removal pin and the support plate, and is sleeved on the outside of the dust removal pin. In the present embodiment, through the mutual cooperation of the reset device 720 and the positioning spring, the reset device 720 moves back and forth to drive the dust removal pin 731 to slide in the air inlet hole 5, thereby facilitating the cleaning of dust at the air inlet hole 5, facilitating the air to enter the volatilization chamber 2, facilitating the mixing of the fuel with sufficient air, and thus facilitating the ignition and full combustion of the fuel.

[0036] like Figure 3 As shown, in a preferred embodiment, the reset device 720 includes a tubular spring seat 721 arranged on the positioning plate 710, a reset spring 722 arranged on the outside of the tubular spring seat 721, and a rotating plate 723 arranged on the outside of the reset spring 722, and one end of the dust removal pin 731 is fixed on the rotating plate 723.

[0037] In this embodiment, the tubular spring seat 721 is a fixed component of the reset device 720. The upper and lower parts of the tubular spring seat 721 can be provided with annular plates. The annular plates cooperate with the tubular spring seat 721 to better fix the reset spring 722 arranged on the outside of the tubular spring seat 721. In this embodiment, one end of the rotating plate 723 is provided with an arc-shaped clamping plate, and the other end is movably arranged on the outside of the volatilization chamber 2. The rotating plate 723 cooperates with the reset spring 722 through the arc-shaped clamping plate. In this embodiment, one end of the dust removal pin 731 is arranged on the side of the rotating plate 723 close to the air inlet 5.

[0038] like Figure 4 As shown, in a preferred embodiment, an air guide device 8 is provided on the upper part of the base plate 6, and the air guide device 8 includes a first support column 810 vertically passing through the middle of the tubular spring seat 721 and arranged on the positioning plate 710, a second support column 820 arranged on the base plate 6 on the other side of the volatilization chamber 2, and an air guide plate 830 arranged on the upper part of the first support column 810 and the second support column 820 and spanning both sides of the volatilization chamber 2, the inner side of the air guide plate 830 cooperates with the outer wall of the combustion chamber 1, and a ventilation hole 831 is provided on the air guide plate 830.

[0039] In this embodiment, the first support column 810 and the second support column 820 are the supporting structures of the air guide plate 830. The first support column 810 and the second support column 820 are arranged on both sides of the volatilization chamber 2, wherein the first support column 810 vertically passes through the middle of the tubular spring seat 721 and is fixed on the positioning plate 710, and the second support column 820 is arranged on the bottom plate 6 on the other side of the volatilization chamber 2. The air guide plate 830 is arranged on the first support column 810 and the second support column 820. The upper part of the air guide plate 830 is provided with a ventilation hole 831, which is convenient for the wind entering the upper side of the outside of the combustion chamber 1 to flow downward through the ventilation hole 831 and finally enter the volatilization chamber 2 through the air inlet. In this embodiment, the air guide plate 830 rotates counterclockwise along the combustion chamber 1. The two ends of the direction are inclined with the bottom plate 6. The wind entering the upper part of the outer side of the combustion chamber 1 moves counterclockwise on the upper part of the bottom plate 6. The wind entering the upper part of the bottom plate 6 can be lifted by the wind guide plate 830, so that the wind speed on the upper part of the wind guide plate 830 can achieve turbulence, thereby avoiding the retention of dust on the wind guide plate 830, and at the same time, it helps the combustion air that meets the cleanliness requirements to flow downward through the ventilation hole 831, and then enter the volatilization chamber 2 through the air inlet. In this embodiment, the wind guide plate 830 effectively reduces the amount of dust passing through the ventilation hole 831, and at the same time reduces the amount of dust accumulation at the air inlet and the amount of dust entering the volatilization chamber 2, which is convenient for the fuel to mix with sufficient air and helps the full combustion of the fuel. In this embodiment, a sealing ring can also be provided below the wind guide plate 830, which together with the wind guide plate 830 and the bottom plate 6 forms a sealed passage between the ventilation hole 831 and the air inlet 5, which can effectively prevent dust from entering the air inlet 5 through the gap between the wind guide plate 830 and the shell 18, and further ensure the cleanliness of the air passing through the air inlet 5.

[0040] like Figure 5 As shown, in a preferred embodiment, an air intake grille 831a is provided at the ventilation hole 831. In this embodiment, the air intake grille 831a is a grid plate with a certain aperture, and the air intake grille 831a further improves the cleanliness of the air passing through the ventilation hole 831, reduces the accumulation of dust in the air intake hole 5 and the amount of dust entering the volatilization chamber 2, facilitates the mixing of sufficient clean air with the fuel, and helps the ignition of the fuel heater and the full combustion of the fuel.

[0041] like Figure 6 As shown, in a preferred embodiment, an air filter device 9 is provided on the outside of the combustion chamber 1 on the base plate 6, and the air filter device 9 includes an arc-shaped fixed plate 910 arranged on the outside of the combustion chamber 1 and a plurality of air filter plates 920 arranged on the base plate 6 in a counterclockwise direction along the combustion chamber 1, and the air filter plate 920 is V-shaped, and one end of the air filter plate 920 is connected to the arc-shaped fixed plate 910.

[0042] In this embodiment, the arc-shaped fixed plate 910 is arranged outside the combustion chamber 1, and the air filter plate 920 is arranged on the bottom plate 6 counterclockwise along the combustion chamber 1. The air filter plate 920 is V-shaped, and one end of the air filter plate 920 is fixed on the arc-shaped fixed plate 910. In this embodiment, the air filter plate 920, the arc-shaped fixed plate 910 and the bottom plate 6 form a chamber for storing dust. After the wind enters the upper part of the bottom plate 6, it flows in a vortex shape in the counterclockwise direction around the burner, passes through the air guide plate 830 and the air filter device 9 in turn, and passes through the air guide plate 830. The incoming wind is lifted up, and then when it passes through the various air filter plates 920 of the air filter device 9, the dust moves downward along the side wall of the air filter plate 920 under the action of its own gravity and the centrifugal force generated by the vortex flow of the wind flow, and finally enters the dust storage chamber formed by the air filter plate 920, the arc-shaped fixed plate 910 and the bottom plate 6. In this embodiment, a plurality of air filter plates 920 are provided, and the air flow undergoes multi-stage dust removal, which greatly reduces the amount of dust in the air flow and greatly improves the dust removal effect of the air filter device 9.

[0043] like Figure 7 As shown, in a preferred embodiment, the air filter plate 920 includes an arc plate 921 matched with the outer side of the bottom plate 6 and a connecting plate 922 arranged at one end of the arc plate 921 and connected to the arc fixing plate 910. In this embodiment, the arc plate 921 is arranged on the outer side of the upper part of the bottom plate 6, and a connecting plate 922 is arranged at one end of the arc plate 921 and connected to the arc fixing plate 910 through the connecting plate 922. During the vortex flow of the wind along the bottom plate 6, the flow direction of the wind is tangent to the arc plate 921. The arc plate 921 facilitates the dust to move downward along the side wall of the arc plate 921 under the action of its own gravity and the centrifugal force generated by the vortex flow of the wind flow, further improving the dust removal effect of the air filter device 9. In this embodiment, the surfaces of the arc plate 921 and the connecting plate 922 are rough structural surfaces, which are helpful for the air filter plate 920 to collect dust, further improving the dust removal effect of the air filter device 9.

[0044] like Figure 8 As shown, in a preferred embodiment, the height of the arc-shaped fixing plate 910 and the height of the air filter plate 920 decrease successively in a counterclockwise direction along the combustion chamber 1.

[0045] In this embodiment, during the movement of the wind flow, the dust gradually sinks under the action of its own gravity and the centrifugal force generated by the vortex flow of the wind flow, and the heights of the arc-shaped fixed plate 910 and the air filter plate 920 are successively reduced in a counterclockwise direction along the combustion chamber 1, which facilitates the step-by-step collection of dust in the wind flow, thereby greatly improving the dust collection efficiency of the air filter device 9.

[0046] like Fig. 9As shown, in a preferred embodiment, the connecting plate 922 is provided with a dust collecting hole 10. In this embodiment, the connecting plate 922 is provided with a dust collecting hole 10, which can provide a variable air flow rate between air layers, prevent the flow of dust and impurities, and facilitate the chamber formed by the air filter plate 920, the arc-shaped fixing plate 910 and the bottom plate 6 to collect dust.

[0047] like Fig.10 As shown, in a preferred embodiment, a carbon deposit cleaning device 11 is provided at the junction of the volatilization chamber 2 and the combustion chamber 1, and the carbon deposit cleaning device 11 includes a cleaning piece 12 arranged at the junction of the volatilization chamber 2 and the combustion chamber 1, an angle plate 13 arranged on the side of the rotating plate 723 close to the volatilization chamber 2, and a balance plate 14 arranged on the angle plate 13 and matched with the cleaning piece 12, and the cleaning piece 12 includes a fixed guide plate 15 arranged on the outside of the volatilization chamber 2, a cleaning pin 16 that passes through the fixed guide plate 15 and the side wall of the volatilization chamber 2 and is slidably arranged at the junction of the volatilization chamber 2 and the combustion chamber 1, and a return spring 17 arranged on the outside of the volatilization chamber 2 and sleeved on the outside of the cleaning pin 16.

[0048] In this embodiment, the carbon deposit cleaning device 11 is provided with a cleaning member 12, an angle plate 13 and a balance plate 14. The cleaning member 12 includes a fixed guide plate 15, a cleaning pin 16 and a return spring 17. The fixed guide plate 15 is arranged outside the volatilization chamber 2. The cleaning pin 16 passes through the fixed guide plate 15 and the side wall of the volatilization chamber 2 in sequence and is slidably arranged at the junction of the volatilization chamber 2 and the combustion chamber 1, so as to facilitate the cleaning of the carbon deposits at the junction of the volatilization chamber 2 and the combustion chamber 1. In this embodiment, a return spring 17 is sleeved on the outside of the cleaning pin 16. One end of the return spring 17 is fixed to the outside of the volatilization chamber 2, and the other end is fixed to the cleaning pin 16 away from the volatilization chamber 2. At one end of the chamber 2, the return spring 17 facilitates the rapid resetting of the cleaning pin 16. In this embodiment, the angle plate 13 is arranged on the rotating plate 723, and one end of the balance plate 14 is arranged on the angle plate 13, and the other end cooperates with the cleaning pin 16. When the rotating plate 723 is driven to drive the dust removal device 7 to clean the dust in the air inlet 5, the rotating plate 723 simultaneously drives the angle plate 13 to move, and then drives the balance plate 14 to move. During the movement of the balance plate 14, the cleaning pin 16 is pushed to clean the carbon deposits at the junction of the volatilization chamber 2 and the combustion chamber 1. In this embodiment, the carbon deposit cleaning device 11 greatly improves the service life of the volatilization chamber 2 and the combustion chamber 1.

[0049] like Fig.11 and Fig.12As shown, in a preferred embodiment, a mounting hole 19 is provided on the outer side of the housing 18 near the free end of the rotating plate 723, a cleaning drive member 20 is provided in the mounting hole 19 and matches the free end of the rotating plate 723, a sealing plate 21 is provided between the cleaning drive member 20 and the housing 18, and the cleaning drive member 20 includes a cylindrical housing 22, a push rod 23 that slides through the cylindrical housing 22 and matches the rotating plate 723, a return spring 24 that is arranged in the cylindrical housing 22 and matches the push rod 23, and a sealing member 25 that is arranged in the cylindrical housing 22, and the push rod 23 includes a push rod 23 that slides through the cylindrical housing 22 and matches the rotating plate 723. A push pin portion 23a that cooperates with the rotating plate 723 at one end of the shell 22, a pressing portion 23b that slides through the other end of the cylindrical shell 22, and a limit plate 23c that is arranged at the intersection of the push pin portion 23a and the pressing portion 23b and slides with the cylindrical shell 22, the return spring 24 is arranged on the side of the limit plate 23c close to the rotating plate 723, and is sleeved on the outside of the fixed pin portion, an O-ring 26 that cooperates with the cylindrical shell 22 is provided on the outer peripheral wall of the limit plate 23c, and the sealing member 25 is arranged at the end of the cylindrical shell 22 away from the rotating plate 723, and the pressing portion 23b slides through the sealing member 25.

[0050] In this embodiment, a mounting hole 19 is provided on the outer side of the shell 18 near the free end of the rotating plate 723. The mounting hole 19 can be a threaded hole. The cleaning drive member 20 is the main structure for driving the rotating plate 723 to move, and can be arranged in the mounting hole 19 by a thread. In this embodiment, a sealing plate 21 is provided between the cleaning drive member 20 and the shell 18, which can effectively prevent external dust from entering the shell 18 through the gap at the connection between the cleaning drive member 20 and the mounting hole 19, thereby effectively preventing dust from accumulating at the air inlet; in this embodiment, the cleaning drive member 20 is provided with a cylindrical shell 22, a push rod 23, a return spring 24 and a seal 25, and the push rod 23 slides through the two ends of the cylindrical shell 22 and cooperates with the rotating plate 723. The return spring 24 is arranged in the cylindrical shell 22 and cooperates with the push rod 23, so as to facilitate the rapid reset of the push rod 23 after the rotating plate 723 moves. In this embodiment, the push rod 23 is provided with a push pin portion 23a, a pressing portion 23b and a limit plate 23c. The push pin portion 23a slides through the end of the cylindrical shell 22 close to the rotating plate 723, the pressing portion 23b slides through the end of the cylindrical shell 22 away from the rotating plate 723, the limit plate 23c is arranged at the intersection of the push pin portion 23a and the pressing portion 23b and slides with the cylindrical shell 22. The return spring 24 is arranged on the limit plate When working, the external force presses the pressing part 23b into the shell 18, and the limiting plate 23c located in the cylindrical shell 22 moves toward the side close to the rotating plate 723 and squeezes the return spring 24. At the same time, the ejector pin 23a pushes the rotating plate 723 to move, and then the rotating plate 723 pushes the dust removal part to clean the dust at the air inlet, and at the same time pushes the cleaning part to clean the carbon deposits at the junction of the combustion chamber and the volatilization chamber. After the external force is removed, the rotating plate 723 is reset under the action of the return spring, and the ejector pin 23 is reset under the action of the return spring 24. The mutual cooperation of the return spring 24 and the return spring facilitates the external force to repeatedly and quickly drive the cleaning drive member 20 and the rotating plate 723. Plate 723, which helps to clean the dust removal parts and clean the carbon deposits of the cleaning parts. In this embodiment, an O-ring 26 that cooperates with the cylindrical shell 22 is provided on the outer peripheral wall of the limiting plate 23c, which prevents dust from entering the shell 18 through the gap between the cylindrical shell 22 and the limiting plate 23c. The sealing member 25 is arranged at the end of the cylindrical shell 22 away from the rotating plate 723, and the pressing portion 23b slides through the sealing member 25. The sealing member 25 effectively prevents external dust from entering the cylindrical shell 22 through the gap between the pressing portion 23b and the end of the cylindrical shell 22, and further prevents dust from entering the shell 18 through the cylindrical shell 22.

[0051] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the application scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A premixed combustion device for combustion heating equipment, characterized in that: The invention comprises a shell (18), a combustion chamber (1) arranged in the shell (18), a volatilization chamber (2) arranged on one side of the upper part of the combustion chamber (1) in the shell (18), an ignition device (3) arranged at one end of the volatilization chamber (2) away from the combustion chamber (1), an oil supply pipe (4) arranged on one side of the volatilization chamber (2) and connected to the volatilization chamber (2), an air inlet (5) arranged on the side wall of the volatilization chamber (2) and located between the oil supply pipe (4) and the ignition device (3), a bottom plate (6) arranged outside the combustion chamber (1) and located below the volatilization chamber (2), and a dust removal device (7) arranged on the bottom plate (6) and matched with the air inlet (5); The dust removal device (7) comprises a positioning plate (710), a reset device (720) arranged on the positioning plate (710), and a dust removal member (730) arranged between the reset device (720) and the air inlet hole (5) and matched with the air inlet hole (5); the dust removal member (730) comprises a support plate (731) arranged vertically on the positioning plate (710) and parallel to the volatilization chamber (2), a dust removal pin (732) sliding through the support plate (731) and matched with the air inlet hole (5), and a positioning spring (733) arranged on a side of the support plate (731) away from the air inlet hole (5) and sleeved on the outside of the dust removal pin (732); one end of the positioning spring (733) is connected to the support plate (731), and the other end is connected to the end of the dust removal pin (732).

2. A premixed combustion device for combustion heating equipment according to claim 1, characterized in that: The reset device (720) comprises a tubular spring seat (721) arranged on the positioning plate (710), a reset spring (722) arranged outside the tubular spring seat (721), and a rotating plate (723) arranged outside the reset spring (722); the dust removal member (730) is arranged between the rotating plate (723) and the air inlet hole (5).

3. A premixed combustion device for combustion heating equipment according to claim 2, characterized in that: An air guide device (8) is provided on the upper part of the bottom plate (6), the air guide device (8) comprising a first support column (810) vertically passing through the middle of the tubular spring seat (721) and arranged on the positioning plate (710), a second support column (820) arranged on the bottom plate (6) on the other side of the volatilization chamber (2), and an air guide plate (830) arranged on the upper part of the first support column (810) and the second support column (820) and spanning across both sides of the volatilization chamber (2), the inner side of the air guide plate (830) being matched with the outer wall of the combustion chamber (1), and a ventilation hole (831) being provided on the air guide plate (830).

4. A premixed combustion device for combustion heating equipment according to claim 3, characterized in that: An air intake grille (831a) is provided at the ventilation hole (831).

5. A premixed combustion device for combustion heating equipment according to claim 4, characterized in that: An air filter device (9) is provided on the outside of the combustion chamber (1) on the bottom plate (6), the air filter device (9) comprising an arc-shaped fixing plate (910) arranged on the outside of the combustion chamber (1) and a plurality of air filter plates (920) arranged on the bottom plate (6) in a counterclockwise direction along the combustion chamber (1), the air filter plate (920) being V-shaped, and one end of the air filter plate (920) being connected to the arc-shaped fixing plate (910).

6. A premixed combustion device for combustion heating equipment according to claim 5, characterized in that: The air filter plate (920) comprises an arc-shaped plate (921) matched with the outer side of the bottom plate (6) and a connecting plate (922) arranged at one end of the arc-shaped plate (921) and connected to the arc-shaped fixing plate (910).

7. A premixed combustion device for combustion heating equipment according to claim 6, characterized in that: The height of the arc-shaped fixing plate (910) and the height of the air filter plate (920) decrease in sequence in a counterclockwise direction along the combustion chamber (1).

8. A premixed combustion device for combustion heating equipment according to claim 7, characterized in that: The connecting plate (922) is provided with a dust collecting hole (10).

9. A premixed combustion device for combustion heating equipment according to claim 8, characterized in that: A carbon deposit cleaning device (11) is provided at the junction of the volatilization chamber (2) and the combustion chamber (1). The carbon deposit cleaning device (11) comprises a cleaning member (12) arranged at the junction of the volatilization chamber (2) and the combustion chamber (1), an angle plate (13) arranged on the side of the rotating plate (723) close to the volatilization chamber (2), and a balancing plate (14) arranged on the angle plate (13) and matched with the cleaning member (12). The cleaning member (12) comprises a fixed guide plate (15) arranged outside the volatilization chamber (2), a cleaning pin (16) passing through the fixed guide plate (15) and the side wall of the volatilization chamber (2) and slidably arranged at the junction of the volatilization chamber (2) and the combustion chamber (1), and a return spring (17) arranged outside the volatilization chamber (2) and sleeved on the outside of the cleaning pin (16).

10. A premixed combustion device for combustion heating equipment according to claim 9, characterized in that: A mounting hole (19) is provided on the outer side of the housing (18) near the free end of the rotating plate (723); a cleaning drive member (20) cooperating with the free end of the rotating plate (723) is provided in the mounting hole (19); a sealing plate (21) is provided between the cleaning drive member (20) and the housing (18); the cleaning drive member (20) comprises a cylindrical housing (22); a push rod (23) sliding through the cylindrical housing (22) and cooperating with the rotating plate (723); a return spring (24) arranged in the cylindrical housing (22) and cooperating with the push rod (23); and a sealing member (25) arranged in the cylindrical housing (22); the push rod (23) comprises a spring (24) sliding through one end of the cylindrical housing (22) and cooperating with the push rod (23); A push pin portion (23a) matched with the rotating plate (723), a pressing portion (23b) slidingly passing through the other end of the cylindrical shell (22), and a limit plate (23c) arranged at the junction of the push pin portion (23a) and the pressing portion (23b) and slidingly matched with the cylindrical shell (22); the return spring (24) is arranged on the side of the limit plate (23c) close to the rotating plate (723) and sleeved on the outside of the push pin portion (23a); an O-ring (26) matching with the cylindrical shell (22) is arranged on the outer peripheral wall of the limit plate (23c); the sealing member (25) is arranged at the end of the cylindrical shell (22) away from the rotating plate (723); and the pressing portion (23b) slides through the sealing member (25).

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