Compact steam sprayer

Abstract

The utility model discloses a compact steam type sprayer, and belongs to the field of steam type sprayers. The compact steam type sprayer comprises a combustion pipe, a combustor and an auxiliary pipe, the combustor is installed at one end of the combustion pipe, and the combustor is used for combusting combustible mixed gas so as to provide a heat source for the interior of the combustion pipe; the assistant pipe is used for conveying an assistant and comprises a liquid inlet pipe, a coil pipe section and a liquid outlet pipe which are sequentially connected in series, and the liquid outlet pipe is connected with the spray head; wherein pipe paths in the coil pipe sections are wound in the radial direction, the multiple coil pipe sections are stacked in the axial direction of the combustion pipe, and the axial size of the combustion pipe is smaller than or equal to the radial size. According to the scheme, the axial size of the coil pipe section is further compressed, the pipe body of the combustion pipe is shortened, the sprayer body is more compact, the user operation flexibility is higher, and the adaptability to some low-trafficability occasions is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of steam type sprayers, and more specifically to a compact steam type sprayer. Background Art

[0002] Steam sprayer (fog machine) refers to agricultural and forestry plant protection machinery and equipment, which is widely used in pest control, disinfection and sterilization or fertilization. The steam sprayer separates the medicine and auxiliary agent and heats the auxiliary agent separately, and then mixes the room temperature medicine with the high-temperature heated auxiliary agent for spraying to ensure the medicinal properties of the medicine. It has the advantages of small size and light weight.

[0003] At present, the steam atomizer generally uses fuel oil for heating the additive. After the fuel oil and the required air are introduced into the burner, the ignition plug is used for ignition and combustion, thereby heating the additive at high temperature.

[0004] For example, a Chinese patent document (publication number: CN 218925075 U) provides a steam sprayer spiral tube, which is installed in a combustion tube, and includes a spiral tube tail end and a spiral tube top end, and the spiral tube tail end passes through the inner diameter of the spiral tube, thereby reducing its internal space, thereby improving the thermal efficiency of the spiral tube. The steam sprayer using the spiral tube has a long tube body that accommodates the combustion tube, which is inconvenient for users to operate in some narrow places with many obstructions.

[0005] Meanwhile, the combustion tube in the related art is generally welded or has a detachable cover. Since the combustion tube is often in a high temperature state, the flame burns from the burner end to the cover, which can easily cause thermal damage and deformation to the connection part of the cover.

[0006] For the above problems, the related technologies do not provide effective solutions. Utility Model Content

[0007] In order to solve the problems that may exist in the related art, some embodiments of the present application provide a steam sprayer, characterized in that it includes: a combustion tube, a burner is installed at one end, and the burner is used to burn the combustible mixture to provide a heat source to the combustion tube; an auxiliary agent tube, used to transport the auxiliary agent, comprising a liquid inlet pipe, a coil section and a liquid outlet pipe connected in series in sequence, and the liquid outlet pipe is connected to the nozzle; wherein the pipe path in the coil section is radially wound, and a plurality of the coil sections are stacked axially along the combustion tube, and the axial dimension of the combustion tube is less than or equal to the radial dimension.

[0008] Furthermore, the pipelines in the coil segments are spirally wound in the same plane, and adjacent coil segments are connected via straight pipes or curved pipes.

[0009] Furthermore, the distance between adjacent coil sections is 1 cm to 5 cm.

[0010] Furthermore, there is a combustion gap between the coil section and the burner, and the combustion gap is at least greater than 1 cm.

[0011] Furthermore, the coil section near one end of the burner is connected to the liquid outlet pipe, and the coil section at the other end of the burner is connected to the liquid inlet pipe.

[0012] Furthermore, the combustion tube is connected to a cover plate, and the cover plate is arranged at one end of the combustion tube away from the burner; the liquid outlet pipe extends from one end of the combustion tube close to the burner to the cover plate and passes through the cover plate, and the part of the liquid outlet pipe passing through the cover plate extends in a direction parallel to the cover plate so that the jet direction of the nozzle is consistent with the direction parallel to the cover plate.

[0013] Furthermore, the number of pipe turns in each of the coil segments is less than 7, and the distance between adjacent pipes in the coil segment is greater than or equal to 1 mm.

[0014] Furthermore, the number of the coil segments is 3 to 5.

[0015] Furthermore, it also includes a cooling layer, which is an outer coil, which is arranged around the outer periphery of the combustion tube and serves as a circulation pipeline for cooling water.

[0016] Furthermore, it also includes a thermal insulation layer, which is sleeved on the combustion tube.

[0017] Furthermore, the cooling layer is sheathed onto the thermal insulation layer.

[0018] To achieve the above-mentioned purpose, some embodiments of the present application also provide a compact steam sprayer, including: a combustion tube, with a burner installed at one end and a cover plate detachably connected to the other end, the burner is used to burn the combustible mixture to provide a heat source to the combustion tube; an auxiliary agent tube, used to transport the auxiliary agent, comprising a liquid inlet pipe, a coil section and a liquid outlet pipe connected in series in sequence, the liquid outlet pipe is connected to the nozzle, and the liquid inlet pipe and the liquid outlet pipe both pass through the cover plate; wherein the pipe path in the coil section is linearly wound, and a plurality of the coil sections are stacked along the axial direction of the combustion tube.

[0019] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0020] The axial dimension of the coil section is further compressed, the combustion tube body becomes shorter, the sprayer body is more compact, the user's operating flexibility becomes higher, and it is more adaptable to some low-passage occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0022] Figure 1 This is a schematic cross-sectional view of a compact steam sprayer according to an embodiment of the present application;

[0023] Figure 2 A schematic diagram of an auxiliary agent tube for a compact steam sprayer according to an embodiment of the present application;

[0024] Figure 3 This is a schematic cross-sectional view of a compact steam sprayer according to an embodiment of the present application;

[0025] Figure 4 A schematic diagram simulating a user holding a compact steam sprayer according to an embodiment of the present application;

[0026] Figure 5 This is a partially enlarged cross-sectional view of a compact steam sprayer according to an embodiment of the present application;

[0027] Figure 6 This is a partially enlarged cross-sectional view of a compact steam sprayer according to an embodiment of the present application;

[0028] Description of labels:

[0029] 100, combustion tube; 100a, central axis; 110, cover plate;

[0030] 200, auxiliary agent pipe; 210, liquid inlet pipe; 220, liquid outlet pipe; 230, coil section;

[0031] 300, burner;

[0032] 400, cooling layer; 410, external coil;

[0033] 500. Insulation layer. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0036] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientation or positional relationships, some of the above terms may also be used to express other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0037] This embodiment provides a compact steam sprayer, such as Figure 1 , 2 As shown, it includes a combustion tube 100 , an auxiliary agent tube 200 and a burner 300 .

[0038] like Figure 1 As shown, a burner 300 is installed at one end of the combustion tube 100, and the burner 300 is used to burn the combustible mixture to provide a heat source in the combustion tube 100, and the heat source is used to heat the additive. The combustible mixture is a mixture of air and fuel within a certain ratio range, and the fuel can be gasoline or diesel. Further, in order to make the additive tube 200 in the combustion tube 100 heated evenly, its heat source is generally located at the central axis 100a of the combustion tube 100 and ejected from the flame outlet of the burner 300.

[0039] It is worth noting that the “axial direction” and “radial direction” involved in this embodiment are consistent with the axial direction and radial direction of the combustion tube 100 .

[0040] Specifically, Figure 1 As shown, a cover plate 110 is connected to one end of the combustion tube 100 away from the burner 300. Preferably, the cover plate 110 is detachably connected to the combustion tube 100, such as by threaded connection, plug-in connection, snap-on connection, etc. The liquid inlet pipe 210 and the liquid outlet pipe 220 pass through the cover plate 110 to facilitate replacement of the additive tube 200.

[0041] The additive pipe 200 is used to transport the additive, and includes a liquid inlet pipe 210, a coil section 230 and a liquid outlet pipe 220 connected in series. The additive flows from the liquid inlet pipe 210 into the coil section 230 of the combustion tube 100, and then flows out from the liquid outlet pipe 220. The liquid outlet pipe 220 is connected to a nozzle, and the nozzle can spray the additive. The liquid outlet pipe 220 and the nozzle can be an integral structure.

[0042] Among them, combined Figure 1 and Figure 2 , the pipe path in the coil section 230 is axially coiled, and several coil sections 230 are stacked along the axial direction of the combustion tube 100. Preferably, the axial dimension of the combustion tube is less than or equal to its radial dimension. For example, the axial dimension of the combustion tube can be equal to its radial dimension, or can be less than its radial dimension. In this way, the axial dimension of the coil section 230 is further compressed, the tube body of the combustion tube 100 becomes shorter, the body of the sprayer is more compact, the user's operating flexibility becomes higher, and the adaptability to some low-passability occasions is higher. At the same time, the radial space inside the combustion tube 100 is tighter. When the flame burns from the burner 300 to the end of the cover plate 110, it needs to pass through multiple coil sections 230, which further protects the cover plate 110 and prevents the connection between the cover plate 110 and the combustion tube 100 from being deformed and failed due to thermal damage.

[0043] Preferably, Figure 1 As shown, there is a combustion gap L1 between the coil section 230 and the burner 300, and the combustion gap L1 is at least greater than 1 cm. In the related art, in order to ensure the portability of the steam sprayer, the steam sprayer and the burner 300 are generally in direct contact without a gap. However, if the coil section 230 in this embodiment directly presses against the burner 300, the pipeline in the center of the coil section 230 will be too close to the fire source, resulting in burning problems. At the same time, the flame is mostly blocked by the coil section 230 and cannot efficiently supply heat to other coil sections 230.

[0044] Specifically, combined Figure 1 , Figure 2 As shown, the pipeline in the coil section 230 is spirally wound in the same plane, and a plurality of coil sections 230 are stacked up and down, and the coil sections 230 are connected to each other through straight pipes or curved pipes, and there are gaps between the coil sections 230. It is worth noting that the same plane here means that the diameters of the auxiliary agent tube 200 are located in the same plane as much as possible, and there can be a small error caused by manufacturing problems.

[0045] The number of pipe turns in each coil section 230 is less than 7, such as 3, 4, 5, 6, etc., and the distance between adjacent pipes in the coil section 230 is greater than or equal to 1 mm, such as 2 mm, 3 mm, 4 mm, etc., so that the flame can fully burn the pipes in the coil section 230. The number of pipe turns in the coil section 230 is preferably 4, so that the diameter of the combustion tube 100 is maintained in a better range.

[0046] The user generally needs to hold the steam sprayer, wherein the handle is generally located near the combustion tube 100, and the combustion tube 100 also needs to reserve a smoke exhaust channel for exhausting smoke.

[0047] Specifically, the number of the coil sections 230 is 3 to 7, such as 4, 6, etc., preferably 3 to 5. If there are too few coil sections 230, the number of turns of the auxiliary agent tube 200 will need to be lengthened accordingly, and the diameter of the combustion tube 100 will increase, which will affect the user's comfort. At the same time, the overall reduction of the coil section 230 in the axial direction will also cause the combustion tube 100 to be shortened accordingly in order to ensure heat concentration. However, if the combustion tube 100 is too short, it will make it difficult to arrange the handle and the smoke exhaust channel. If the smoke exhaust channel is too close to the user, it will seriously affect the user experience. If there are too many coil sections 230, the coil section 230 close to the cover plate 110 will be difficult to effectively heat and maintain a high temperature.

[0048] Further, such as Figure 1 As shown, the distance L2 between adjacent coil sections 230 is 1 cm to 5 cm, such as 2 cm, 2.5 cm, 3 mm, etc. If the distance between the coil sections 230 is too close, they will block each other and the coil sections 230 cannot be heated in all directions. If the distance is too far, the heating efficiency will be affected.

[0049] Optional, such as Figure 1 As shown, the coil section near one end of the burner 300 is connected to the liquid inlet pipe 210 , and the coil section 230 at the other end of the burner 300 is connected to the liquid outlet pipe 220 .

[0050] Preferably, Figure 3 As shown, the coil section near one end of the burner 300 is connected to the liquid outlet pipe 220, and the coil section 230 at the other end of the burner 300 is connected to the liquid inlet pipe 210. In this way, since the coil section near one end of the burner 300 is in full contact with the flame, the additive can be fully heated and atomized by the flame sprayed from the burner 300 before injection, ensuring that the additive maintains a high pressure state before injection.

[0051] Specifically, the liquid inlet pipe 210 is located at the center of the cover plate 110, and may also have a certain distance from the center of the cover plate 110. Preferably, the center distance between the liquid inlet pipe 210 and the cover plate 110 is 0 to 10 mm, such as 3 mm, 5 mm, 8 mm, etc., and the structural layout is reasonable.

[0052] Preferably, Figure 3 , Figure 4 As shown, the liquid outlet pipe 220 extends from one end of the combustion tube 100 near the burner 300 to the cover plate 110 and passes through the cover plate 110. The portion of the liquid outlet pipe 220 passing through the cover plate 110 extends in a direction parallel to the cover plate 110 so that the jet direction of the nozzle is consistent with the direction parallel to the cover plate 110. The user grasps the steam sprayer in a direction parallel to the cover plate 110, so that the sprayer is easy to place on the user's side, which is more in line with the user's operating habits and prevents the user from hitting the combustion tube body with the legs during operation. At the same time, the design of the liquid outlet pipe 220 bending after passing through the cover plate 100 is more conducive to the user's maintenance and replacement of the coil.

[0053] Since the axial dimension of the combustion tube 100 is compact, the heat inside it is more concentrated. When the user holds the sprayer, the heat emitted by the combustion tube 100 will cause further safety hazards to the user.

[0054] Therefore, in order to prevent the user from feeling a burning sensation due to the heat emitted by the combustion tube 100 when grasping the handle, Figure 4 As shown, the sprayer in this embodiment further includes a cooling layer 400, which is mounted on the outer periphery of the combustion tube 100 to further cool the combustion tube 100 and further prevent burns to the user caused by high temperature.

[0055] Furthermore, the steam sprayer in this embodiment also includes a heat-insulating layer, which is mounted on the combustion tube 100 to further lock the heat of the combustion tube 100 so that the additive is fully heated. The heat-insulating layer may contain aluminum silicate, calcium silicate, magnesium silicate, silicon carbide fiber, zirconium oxide, aluminum oxide ceramic fiber, silicate ceramic, silicon carbide, tungsten carbide, molybdenum disilicate, aluminum molybdenum disilicate ceramic, borosilicate compound, zirconium oxide ceramic and other materials, or may be a vacuum layer. The heat-insulating layer and the combustion tube 100 may be an integral structure.

[0056] Further, such as Figure 6 As shown, the cooling layer 400 is mounted on the heat-insulating layer 500. Since the heat-insulating layer 500 is provided between the cooling layer 400 and the combustion tube 100, the influence of the cooling layer 400 on the heating efficiency of the burner 300 is reduced, and the cooling layer 400 is prevented from taking away the heat inside the combustion tube 100, thereby affecting the atomization effect of the additive. Furthermore, a heat-insulating layer 500 can be mounted on the outside of the cooling layer 400 for heat insulation.

[0057] Optionally, the cooling layer 400 is an outer coil 410 or a cold water jacket. Preferably, the cooling layer 400 uses an outer coil 410, which is lighter and has a faster circulation speed than a cold water jacket, and is more suitable for the portability of a steam sprayer. The outer coil 410 is arranged around the outer periphery of the insulation layer 500 as a circulation pipeline for cooling water.

[0058] Specifically, the outer diameter of the outer coil 410 is 2 mm to 6 mm, for example, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, etc. In this way, the cross-sectional area of ​​the outer coil 410 is smaller, the variability is high, and the combustion shell can be fully wrapped.

[0059] In this application, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compact steam sprayer, characterized in that: include: A combustion tube, one end of which is provided with a burner, the burner being used to burn the combustible mixed gas to provide a heat source in the combustion tube; The auxiliary agent pipe is used to transport the auxiliary agent, and comprises a liquid inlet pipe, a coil section and a liquid outlet pipe connected in series in sequence, and the liquid outlet pipe is connected to the nozzle; The pipe path in the coil segment is axially wound, a plurality of the coil segments are stacked along the axial direction of the combustion tube, and the axial dimension of the combustion tube is less than or equal to the radial dimension.

2. The compact steam sprayer according to claim 1, characterized in that: The pipelines in the coil sections are spirally wound in the same plane, and adjacent coil sections are connected via straight pipes or curved pipes.

3. The compact steam sprayer according to claim 1, characterized in that: The distance between adjacent coil sections is 1 cm to 5 cm.

4. The compact steam sprayer according to claim 1, characterized in that: A combustion gap is provided between the coil section and the burner, and the combustion gap is at least greater than 1 cm.

5. The compact steam sprayer according to claim 1, characterized in that: The coil section close to one end of the burner is connected to the liquid outlet pipe, and the coil section at the other end of the burner is connected to the liquid inlet pipe.

6. The compact steam sprayer according to claim 5, characterized in that: The combustion tube is connected with a cover plate, and the cover plate is arranged at one end of the combustion tube away from the burner; The liquid outlet pipe extends from one end of the combustion tube close to the burner to the cover plate and passes through the cover plate. The portion of the liquid outlet pipe passing through the cover plate extends in a direction parallel to the cover plate so that the jet direction of the nozzle is consistent with the direction parallel to the cover plate.

7. The compact steam sprayer according to claim 1, characterized in that: The number of pipeline turns in each of the coil sections is less than 7, and the distance between adjacent pipelines in the coil section is greater than or equal to 1 mm.

8. The compact steam sprayer according to claim 1, characterized in that: The number of the coil sections is 3 to 5.

9. The compact steam sprayer according to claim 1 or 8, characterized in that: It also includes a cooling layer, which is an outer coil, which is arranged around the outer periphery of the combustion tube and serves as a circulation pipeline for cooling water.

10. The compact steam sprayer according to claim 9, characterized in that: It also includes a thermal insulation layer, which is sleeved onto the combustion tube.

11. The compact steam sprayer according to claim 10, characterized in that: The cooling layer is sleeved onto the thermal insulation layer.

12. A compact steam sprayer, characterized in that: include: A combustion tube, with a burner mounted on one end and a cover plate detachably connected to the other end, wherein the burner is used to burn the combustible mixed gas to provide a heat source in the combustion tube; An auxiliary agent pipe, used for conveying auxiliary agents, comprises a liquid inlet pipe, a coil section and a liquid outlet pipe connected in series in sequence, the liquid outlet pipe is connected to the nozzle, and the liquid inlet pipe and the liquid outlet pipe both pass through the cover plate; The pipe path in the coil section is axially wound, and a plurality of the coil sections are stacked along the axial direction of the combustion tube.

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