CN219199172U - Backfire-proof steam type combustion sprayer - Google Patents

Backfire-proof steam type combustion sprayer Download PDF

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Publication number
CN219199172U
CN219199172U CN202320212433.8U CN202320212433U CN219199172U CN 219199172 U CN219199172 U CN 219199172U CN 202320212433 U CN202320212433 U CN 202320212433U CN 219199172 U CN219199172 U CN 219199172U
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main body
burner
sprayer
air supply
supply fan
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CN202320212433.8U
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Chinese (zh)
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唐小华
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Wuhu Fast Mantis Intelligent Equipment Co ltd
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Wuhu Fast Mantis Intelligent Equipment Co ltd
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Abstract

The utility model discloses an anti-backfire steam type combustion sprayer, and belongs to the field of agricultural machinery. The utility model comprises a main body shell, an air supply fan and a burner, wherein the burner is arranged at one end of the main body shell, and an end sealing cover is arranged at the other end of the main body shell; in the main body shell, a fireproof cavity is formed in the area between the burner and the end sealing cover, an air supply fan is arranged outside the fireproof cavity, and the air supply fan is used for supplying air into the fireproof cavity; the axial distance L between the end cover and the burner end face is at least 3mm so that a burner operating wind pressure can be established in the fire-proof chamber. The utility model overcomes the defect that other components are easy to damage due to tempering combustion of residual oil of the sprayer in the prior art, so that the use safety is poor, and the sprayer can be effectively protected during tempering combustion, so that the other components are prevented from being burnt out, and the use safety is obviously improved.

Description

Backfire-proof steam type combustion sprayer
Technical Field
The utility model relates to the technical field of agricultural machinery, in particular to an anti-backfire steam combustion sprayer.
Background
The sprayer is agricultural and forestry plant protection mechanical equipment and is widely applied to disinsection, disinfection and sterilization or fertilization. The sprayer comprises a smoke sprayer and a steam sprayer, wherein the steam sprayer is used for separating the medicament from the auxiliary agent and heating the auxiliary agent independently, then mixing and spraying the medicament at normal temperature and the auxiliary agent heated at high temperature, so that the medicament property of the medicament is ensured, and the steam sprayer has the advantages of smaller volume and lighter weight compared with the smoke sprayer. Therefore, the steam atomizer is more widely used.
At present, in the steam sprayer in the use, need set up special air feed mechanism in order to promote the abundant burning in the combustor, realize the heating to the auxiliary agent, and current atomizer structure, when air feed mechanism stopped the air feed, still generally still certain residual fuel can continue burning in the combustor, and easy tempering burns and damages other parts, leads to other parts especially to supply frequent damage of air feed mechanism, influences the normal safe handling of equipment, has higher potential safety hazard. How to realize the long-term stable use of the sprayer, especially the long-term stable application of the air supply mechanism, has great significance to production practice.
The application of application number 2012101419352, which was searched, discloses a remote air-assisted spraying smoke sprayer, which directly places the fan on the rear side of the burner, and the circuit is easily damaged by tempering.
The application of application number 2022209320363 discloses a safety protection structure of steam atomizer, and centrifugal fan and combustion mechanism of this patent are located the inside both ends of atomizer body respectively, in case take place backfire burning, are difficult to avoid burning out the fan.
The application of application number 2022203863652 discloses a high efficiency burner for a steam atomizer; the application of application number 2022203898435 discloses a burner for a steam atomizer; application 2022200952245 discloses an electrostatic mechanism for use on a vapor-type atomizer; application No. 2022201104347 discloses a thermally insulating protective structure for use on a vapor-type atomizer; application No. 2022208698929 discloses an atomizer electronic fuel injection system; the application 2022202144341 discloses a steam sprayer of heavy-calibre shower nozzle, and above application all is equipped with special air feed fan in order to promote the burning, but also inevitable, when the combustion ware appears that the air feed stops the combustion of non return fire, and the air feed fan all has the risk of being burnt by tempering flame, and is difficult to change the maintenance.
Disclosure of Invention
1. Technical problem to be solved by the utility model
The utility model aims to overcome the defect that other parts are easy to damage due to tempering combustion of residual oil of a sprayer in the prior art, so that the use safety is poor, and aims to provide an anti-tempering steam type combustion sprayer which can effectively protect during tempering combustion, avoid burning out other parts and remarkably improve the use safety.
2. Technical proposal
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the utility model relates to an anti-backfire steam type combustion sprayer which comprises a main body shell, an air supply fan and a combustor, wherein the combustor is arranged at one end of the main body shell, and an end sealing cover is arranged at the other end of the main body shell; in the main body shell, a fireproof cavity is formed in the area between the burner and the end sealing cover, an air supply fan is arranged outside the fireproof cavity, and the air supply fan is used for supplying air into the fireproof cavity; the axial distance L between the end cover and the burner end face is at least 3mm so that a burner operating wind pressure can be established in the fire-proof chamber.
More preferably, the axial distance L between the end cover and the burner end face is 10-150mm.
More preferably, a handle is arranged on the outer side of the main body shell, and the connection position of the handle and the main body shell at least partially corresponds to the position of the fireproof cavity.
More optimally, the main body shell and the end sealing cover are made of high-temperature resistant materials.
More optimally, a sealing isolation layer is arranged between the internal control circuit of the air supply fan and the outside.
More preferably, the end cap is disposed at a non-end face position of the main body housing, and the end face of the main body housing extends beyond the end cap.
More preferably, the air supply channel is detachably connected with the outer wall of the fireproof chamber.
More preferably, the air supply channel is sealed peripherally from the interface of the outer wall of the fire-resistant chamber.
More optimally, one end of the main body shell, which is far away from the air supply fan, is connected with a heating inner shell, an inner coil pipe for circulating auxiliary agents is arranged in the heating inner shell, and the central axis of the burner is consistent with the central axis of the inner coil pipe.
More preferably, an outer coil is also provided outside the heating inner shell, and the outer coil extends at least partially beyond the housing in which the burner is located.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
(1) According to the backfire-preventing steam type combustion sprayer, the fireproof cavity is formed in the area between the burner and the end sealing cover, the air supply fan is arranged on the outer side of the fireproof cavity, when backfire occurs when residual oil in the burner continues to burn, flame scattered outside the backfire can be further burnt in the fireproof cavity, the air supply fan is prevented from being damaged by burning, effective protection of the air supply fan can be achieved, and long-term stable use of the air supply fan is guaranteed.
(2) According to the backfire-proof steam type combustion sprayer, the axial distance between the end sealing cover and the end face of the combustor is at least 3mm, backfire damage protection of the air supply fan can be effectively achieved, meanwhile, the air supply fan can be guaranteed to generate sufficient air supply pressure for the combustor, and the combustor can be rapidly ignited to burn with high efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of a combustion atomizer according to an embodiment;
FIG. 2 is a schematic cross-sectional view of a combustion atomizer according to an embodiment;
FIG. 3 is a schematic view of a structure of a combustion atomizer using an axial flow fan in an embodiment;
FIG. 4 is a schematic view of an embodiment in which the end cap is disposed in a non-end position;
FIG. 5 is a schematic view of an embodiment in which an outer coil extension tray is disposed outside the smoke exhaust pipe without a protective housing;
FIG. 6 is a schematic cross-sectional view of an embodiment of a combustion sprayer with an outer coil and without a protective housing;
FIG. 7 is a schematic view of a structure of a combustion sprayer with a smoke outlet in an embodiment;
FIG. 8 is a schematic view of a combustion atomizer with only an inner coil and a smoke exhaust pipe according to an embodiment;
fig. 9 is a schematic view of a combustion sprayer with only an inner coil and a smoke outlet.
Reference numerals in the schematic drawings illustrate:
100. a main body housing; 101. a spark plug; 102. an end closure; 103. a fire-resistant chamber;
200. an air supply fan; 201. an air supply passage;
300. heating the inner shell; 301. a smoke exhaust pipe; 302. a protective housing; 303. a handle; 304. an outer coil liquid outlet pipe; 305. an inner coil liquid inlet pipe; 306. a spray head; 307. a burner; 308. an outer coil; 309. an inner coil; 310. sealing cover.
Detailed Description
For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model is further described below with reference to examples.
Examples
The backfire preventing steam type combustion sprayer of the embodiment comprises a main body shell 100, an air supply fan 200 and a combustor 307, wherein the combustor 307 is arranged at one end of the main body shell 100, and an end cover 102 is arranged at the other end of the main body shell 100; in the main body housing 100, a fireproof chamber 103 is formed in a region between the burner 307 and the end cover 102, the air supply fan 200 is disposed outside the fireproof chamber 103, and the air supply fan 200 is used for supplying air into the fireproof chamber 103; the axial distance L between the end cap 102 and the head end face of the burner 307 is at least 3mm so that the fire-proof chamber 103 can develop a burner 307 operating wind pressure, as shown in fig. 2.
In this embodiment, one end of the main body housing 100 far away from the air supply fan 200 is connected with a heating inner housing 300, an inner coil 309 through which auxiliary agent flows is provided in the heating inner housing 300, the burner 307 extends toward the direction close to the heating inner housing 300, one end of the tail end of the heating inner housing 300 far away from the burner 307 is provided with a sealing cover 310, one end of the inner coil 309 is provided with an inner coil liquid inlet pipe 305 for connecting auxiliary agent, a liquid outlet of the inner coil 309 penetrates out of the sealing cover 310 and is connected with a spray head 306, and one side of the spray head 306 is also connected with a liquid medicine pipeline. The burner 307 is connected with a fuel pipe and a spark plug 101 for ignition combustion, when in use, the air supply fan 200 supplies air, and an oil-gas mixture formed by fuel oil and air flow is ignited, and flame enters the heating inner shell 300 so as to heat the auxiliary agent in the inner coil 309.
In practice, the air inlet of the burner 307 is generally formed in the circumferential side wall, and fuel may leak from the air inlet of the bottom side wall into the fireproof chamber 103, especially when the air supply fan 200 stops supplying air, part of the fuel which is still not fully combusted generally remains in the burner 307 will continue to combust, and because the air supply stops, flame is difficult to effectively enter the heating inner shell 300 to continue to heat, but will combust in the burner 307 and easily diffuse out through the air inlet of the side wall of the burner 307, and tempering combustion is generated in the main body housing 100, which results in that the air supply structure in the traditional burner structure is very easy to be damaged, frequent maintenance and replacement and influence normal operation.
The present embodiment can effectively alleviate and improve such problems by providing the fireproof chamber 103, and the air supply fan 200 is disposed outside the fireproof chamber 103, and the axial distance L between the end cover 102 and the head end surface of the burner 307 is at least 3mm; when backfire combustion occurs, backfire scattered flame can be further combusted in the fireproof cavity 103, and the damage to the air supply fan 200 caused by direct combustion through the air supply channel 201 is avoided, so that the air supply fan 200 can be effectively protected, and long-term stable use of the air supply fan is ensured. Correspondingly, the main body shell 100 and the end sealing cover 102 are made of high-temperature resistant materials, and other component structures in the fireproof cavity 103 are made of high-temperature resistant materials, including various high-temperature resistant materials of the same nature in the industries of metal, ceramic, teflon, electrician bakelite, graphite, carbon fiber and the like, and can bear high-temperature combustion of flame, so that use safety is guaranteed.
As different practical embodiments, the air supply fan 200 may be installed outside the end cover 102, and the end cover 102 is correspondingly provided with an air inlet through hole communicated with the air supply fan 200 for air supply; the air supply fan 200 may be installed on the outer wall of the main body casing 100, preferably on the top or two side outer wall areas of the non-bottom area of the main body casing 100, and the outer wall of the main body casing 100 is correspondingly provided with an air inlet through hole communicated with the air supply fan 200 for air intake.
As a different embodiment of the end cap 102, as shown in fig. 1 and 2, the end cap 102 may be provided at an end face position of the main body case 100; as shown in fig. 4, the end cover 102 may also be disposed at a non-end position of the main body casing 100, that is, the end surface of the main body casing 100 extends beyond the end cover 102, where the air supply fan 200 is mounted outside the end cover 102, and the extending area of the main body casing 100 can protect the air supply fan 200 from the outside.
As a more preferred embodiment, the axial distance L between the end cover 102 and the end face of the burner 307 is 10-150mm, and the further axial distance L may be 15-100mm, for example, specifically 20mm, 50mm, 80mm, etc., by controlling the distance, not only the protection against tempering damage to the air supply fan 200 can be effectively achieved, but also the air supply fan 200 can be ensured to generate sufficient air supply pressure to the burner 307, and the burner 307 can be ensured to quickly ignite and burn with high efficiency.
The burner 307 is operated at a relatively high temperature, and is typically provided with a handle in order to avoid scalding. As an embodiment of the handle, the handle 303 is disposed outside the main body housing 100 along the length direction, and the connection position of the handle 303 and the main body housing 100 at least partially corresponds to the position of the fireproof cavity 103, that is, is away from the area where the main body of the burner 307 is located, which is helpful for slowing down the high-temperature heating condition of the handle 303 and improving the heat insulation and scalding prevention effects. And the handle 303 is arranged on the outer side of the main body shell 100, so that the gravity distribution and the operation habit of the whole structure are combined, the hand is more convenient to grasp and spray, and the holding comfort and the operation convenience are improved.
More preferably, a sealing isolation layer is arranged between the internal control circuit of the air supply fan 200 and the outside, and in specific practice, various structural forms such as glue filling sealing, film coating sealing, paint spraying sealing and the like can be adopted, so that external foreign matters or liquid medicine and the like can be effectively prevented from entering and damaging the internal control circuit, and the internal control circuit has waterproof and anti-corrosion properties so as to fully ensure the long-term use safety of the internal circuit. As different embodiments of the air supply fan 200, various air supply mechanisms in industry, such as a volute fan or an axial flow fan, etc., are specifically used, as shown in fig. 2, a volute fan is used, as shown in fig. 3, an axial flow fan is used, and the installation position of the fan can be flexibly adjusted, and the air inlet of the fan can face the upper direction, the lower direction or the side direction of the burner 307.
More preferably, the air supply channel 201 of the air supply fan 200 is detachably connected with the outer wall of the fireproof cavity 103, for example, a plurality of modes such as bolt connection or clamping connection can be adopted, namely, when the air supply fan 200 is mounted on the end sealing cover 102, the air supply channel 201 is detachably connected with the end sealing cover 102, and when the air supply fan 200 is mounted on the side wall of the main body casing 100, the air supply channel 201 is detachably connected with the side wall of the main body casing 100, so that the mounting and the replacement of the air supply fan 200 are facilitated. In cooperation with this, the outer periphery of the contact surface between the air supply channel 201 and the outer wall of the fireproof chamber 103 is sealed, for example, various sealing structures such as sealant, sealing gasket and the like can be adopted, so that the air supply effect and the air supply pressure are fully ensured, and the efficient combustion of the burner 307 is ensured.
More optimally, the central axes of the burner 307 and the inner coil 309 are kept consistent, when the air inlet through hole is formed in the end cover 102, the central axes of the air inlet through hole in the end cover 102, the burner 307 and the inner coil 309 are kept consistent, so that the whole structure is more compact, and the air inlet holes of the burner 307 are formed in the outer circumferential wall surface, so that the tempering and outward scattered flame is further prevented from directly entering the air supply channel 201 to damage the air supply fan 200, and the protection effect on the air supply fan 200 is improved.
As other implementation ways, as shown in fig. 6, an outer coil 308 is further arranged outside the heating inner shell 300 in addition to the inner coil 309, and as different implementation ways, the burner 307 may be installed completely in the main body shell 100 or partially extended into the heating inner shell 300, when the burner 307 is partially extended into the heating inner shell 300, at least a part of the extended position of the outer coil 308 corresponds to the outside of the heating inner shell 300 shell where the burner 307 is located, the outer coil 308 is used for improving the cooling and scalding-preventing effect on the heating inner shell 300, and an auxiliary agent may be directly introduced into the outer coil 308, as shown in fig. 1, at this time, an outer coil outlet pipe 304 at the outlet end of the outer coil 308 is communicated with an inner coil inlet pipe 305 of the inner coil 309, and an inlet end of the outer coil 308 is connected with an auxiliary agent tank, and the auxiliary agent is preheated by the outer coil 308 and then enters into the inner coil 309 for further heating, thereby not only helping to improve the heat efficiency, but also being able to effectively prevent scalding when the outer coil 308 is used for effectively performing the operation of holding the handle 303 by a human hand. Alternatively, other cooling mediums such as air, fluid, etc. may be introduced into the outer coil 308 to achieve the cooling and heat insulation effects, and the outer coil 308 is not connected to the inner coil 309, and the inner coil 309 is separately connected to the auxiliary agent. More preferably, the liquid inlet end of the outer coil 308 is located at one end close to the burner 307, and the tube body extends in a circulating manner in a direction away from the burner 307, i.e. liquid is fed from a position corresponding to the outside of the housing where the burner 307 is located and gradually extends backwards, so as to further improve the cooling and heat insulation effects.
Optionally, a protective outer shell 302 is further disposed outside the outer coil 308, so as to further enhance the heat insulation and scalding-preventing effect of the handle 303, as shown in fig. 1, 2, 4 and 7, in particular, in practice, the protective outer shell 302 may be a cylindrical structure circumferentially distributed around the heating inner shell 300, or the protective outer shell 302 is only disposed in a region corresponding to and shielded below the handle 303, and may be a flat plate or an arc plate structure, and heat dissipation holes may be further formed on the protective outer shell 302.
As one of other embodiments, the end of the heating inner case 300 is directly opened with a smoke exhaust hole communicating with the outside, ensuring the inside of the heating inner case 300 to be fully burned, as shown in fig. 7 and 9. As shown in fig. 1, 2, 3, 4, 5, 6 and 8, one end of the heating inner shell 300, which is far away from the burner 307, is provided with a smoke exhaust pipe 301 communicated with the inside, and the outlet of the smoke exhaust pipe 301 faces away from the handle 303, so that the smoke exhaust pipe 301 can effectively avoid the appearance of open fire in the heating inner shell 300 during the use, ensure the use safety and prevent users or other objects from being burnt. Further alternatively, as shown in fig. 3 and 5, the outer coil 308 may have a portion of the tube coiled around the outer periphery of the smoke exhaust 301 to cool the smoke exhaust 301 to a certain degree.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims (10)

1. An anti-backfire steam combustion sprayer, includes main body casing (100), air supply fan (200) and combustor (307), its characterized in that: the burner (307) is arranged at one end of the main body shell (100), and an end sealing cover (102) is arranged at the other end of the main body shell (100);
a fireproof cavity (103) is formed in the main body shell (100) and positioned in the area between the burner (307) and the end sealing cover (102), an air supply fan (200) is arranged outside the fireproof cavity (103), and the air supply fan (200) is used for supplying air into the fireproof cavity (103);
the axial distance L between the end cover (102) and the end face of the burner (307) is at least 3mm, so that a working wind pressure of the burner (307) can be formed in the fireproof chamber (103).
2. An anti-flashback steam combustion sprayer as set forth in claim 1, wherein: the axial distance L between the end cover (102) and the end face of the burner (307) is 10-150mm.
3. An anti-flashback steam combustion sprayer as set forth in claim 1, wherein: a handle (303) is arranged on the outer side of the main body shell (100), and the connection position of the handle (303) and the main body shell (100) at least partially corresponds to the position of the fireproof cavity (103).
4. An anti-flashback steam combustion sprayer as set forth in claim 1, wherein: the main body shell (100) and the end sealing cover (102) are made of high-temperature resistant materials.
5. An anti-flashback steam combustion sprayer as set forth in claim 1, wherein: a sealing isolation layer is arranged between an internal control circuit of the air supply fan (200) and the outside.
6. An anti-flashback steam combustion sprayer as set forth in claim 1, wherein: the end cover (102) is provided at a non-end surface position of the main body case (100), and an end surface of the main body case (100) extends beyond the end cover (102).
7. An anti-flashback steam combustion sprayer as set forth in claim 1, wherein: the air supply channel (201) is detachably connected with the outer wall of the fireproof cavity (103).
8. The backfire-preventing steam combustion sprayer according to claim 7, wherein: the air supply channel (201) is sealed with the periphery of the contact surface of the outer wall of the fireproof chamber (103).
9. A backfire-preventing steam combustion sprayer according to any one of claims 1-8, wherein: one end of the main body shell (100) far away from the air supply fan (200) is connected with a heating inner shell (300), an inner coil (309) for circulating auxiliary agents is arranged in the heating inner shell (300), and the central axis of the burner (307) is consistent with the central axis of the inner coil (309).
10. An anti-flashback steam combustion sprayer in accordance with claim 9, wherein: an outer coil (308) is further arranged on the outer side of the heating inner shell (300), and at least part of the outer coil (308) extends to the position corresponding to the outside of the shell where the burner (307) is located.
CN202320212433.8U 2023-02-01 2023-02-01 Backfire-proof steam type combustion sprayer Active CN219199172U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320212433.8U CN219199172U (en) 2023-02-01 2023-02-01 Backfire-proof steam type combustion sprayer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320212433.8U CN219199172U (en) 2023-02-01 2023-02-01 Backfire-proof steam type combustion sprayer

Publications (1)

Publication Number Publication Date
CN219199172U true CN219199172U (en) 2023-06-16

Family

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Application Number Title Priority Date Filing Date
CN202320212433.8U Active CN219199172U (en) 2023-02-01 2023-02-01 Backfire-proof steam type combustion sprayer

Country Status (1)

Country Link
CN (1) CN219199172U (en)

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