Spraying device suitable for flammable and explosive places

Abstract

The utility model relates to the technical field of oil and gas exploitation, and provides a spraying device suitable for flammable and explosive places, which comprises a machine body, and the machine body is provided with a walking device and a storage tank for containing liquid; the spray head communicates with the storage box and is used for spraying liquid; at least one spray head is connected with the storage box through a hose; and the air source is communicated with the storage box, and the air source can pressurize the storage box so as to drive the liquid in the storage box to be sprayed out from the spray head. The device can overcome the defects that when weeding is conducted in an existing oil and gas exploitation place in the mode that a pesticide sprayer is manually carried on the back to spray pesticide liquid, the load of workers is large, physical fatigue and even muscle strain are prone to occurring, and then the weeding pesticide liquid spraying operation efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas exploitation, and particularly relates to a spraying device suitable for flammable and explosive places. Background Art

[0002] Most oil and gas exploitation sites are built in the wild and often need to face the problem of weed growth. However, since most oil and gas production sites belong to flammable and explosive places with high hydrogen sulfide content, the existing oil and gas exploitation sites often use the method of manually carrying a medicine spraying atomizer to spray liquid medicine for weeding. But the medicine spraying atomizer generally weighs 20 kg by itself, and with another 30 kg of liquid medicine, the total weight can reach about 50 kg. Therefore, the staff have a very high load during the medicine spraying process, are extremely prone to physical fatigue and even muscle strains, resulting in physical discomfort of the staff, low efficiency of the herbicide liquid spraying operation, and even inability to carry out the herbicide liquid spraying operation. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiency that the existing oil and gas exploitation sites use the method of manually carrying a medicine spraying atomizer to spray liquid medicine for weeding, where the staff have a heavy load and are prone to physical fatigue and even muscle strains, which in turn leads to low efficiency of the herbicide liquid spraying operation, and to provide a spraying device suitable for flammable and explosive places.

[0004] In the first aspect, the utility model provides a spraying device suitable for flammable and explosive places, comprising:

[0005] A fuselage, on which a traveling device and a storage tank for containing liquid are arranged;

[0006] Nozzles, the nozzles are communicated with the storage tank, and the nozzles are used for spraying liquid; the number of the nozzles is greater than one, and at least one nozzle is connected with the storage tank through a hose;

[0007] An air source, the air source is communicated with the storage tank, and the air source can pressurize the storage tank to drive the liquid in the storage tank to spray out from the nozzles.

[0008] The traveling device, such as a wheeled traveling device, a crawler traveling device or a mechanical leg traveling device.

[0009] Hoses, such as nitrile rubber hoses, polyethylene hoses, metal braided hoses, etc.

[0010] The air source, such as a high-pressure gas cylinder or a high-pressure gas tank; an air compressor or a blower can also be used, but attention needs to be paid to anti-static and explosion-proof treatments.

[0011] When the spraying device applicable to flammable and explosive places in this solution is performing the operation of spraying herbicide liquid, the liquid can be first filled into the storage tank, and then the fuselage is moved through the traveling device, and the nozzle is started, so that the area in front of the nozzle can be sprayed with the liquid along the moving path of the fuselage. When there is a spraying dead angle and it is difficult to adjust the orientation of the fuselage so that the nozzle can spray the liquid to the corresponding area, the orientation of the nozzle connected to the storage tank through a hose can be adjusted, because the orientation of the nozzle connected to the storage tank through a hose is more flexible and it is easier to spray the liquid into the spraying dead angle without changing the orientation of the fuselage, so as to better complete the spraying operation.

[0012] As can be seen from the above, the spraying device applicable to flammable and explosive places in this solution enables the fuselage equipped with the traveling device to bear the weight of the storage tank and the liquid inside it, and can automatically spray the liquid on the area in front of the nozzle along the moving path of the fuselage during the movement of the fuselage through the traveling device, so as to reduce the load of the staff and improve the operation efficiency of the herbicide liquid spraying operation.

[0013] At the same time, since this solution also enables at least one nozzle to be connected to the storage tank through a hose, the orientation of at least one nozzle can be freely adjusted relative to the fuselage; it is convenient for the staff to spray the liquid into the spraying dead angle by adjusting the orientation of the nozzle relative to the fuselage when encountering a spraying dead angle, thereby improving the coverage rate of the herbicide liquid spraying operation.

[0014] Preferably, a pressure reducing device is also provided between the storage tank and the gas source, and the pressure reducing device is used to reduce the air pressure of the gas entering the storage tank from the gas source.

[0015] Since the air pressure of common gas sources on the market at present, such as high-pressure gas cylinders, is greater than the air pressure required for pressurizing the storage tank, this solution adds a pressure reducing device to prevent the internal pressure of the storage tank from being pressurized too high by the gas source, so as to avoid the situation of the liquid spraying effect decreasing or even the storage tank exploding.

[0016] Preferably, a pressure gauge and / or a pressure sensor are provided at both the air inlet end and the air outlet end of the pressure reducing device.

[0017] This solution can facilitate the staff to ensure whether the air pressures at the air inlet end and the air outlet end of the pressure reducing device are within the normal working range.

[0018] Preferably, the air pressure at the air outlet end of the pressure reducing device is greater than or equal to 10 MPa and less than or equal to 20 MPa.

[0019] This solution recommends the value range of the air pressure at the air outlet end of the pressure reducing device, which can ensure that the nozzle has a good spraying distance and atomization effect when spraying the liquid.

[0020] Preferably, a water outlet is provided at the bottom of the storage tank, and the nozzle is connected to the water outlet.

[0021] The bottom of the storage tank, such as the bottom surface of the storage tank, or a position on the upper part of the side of the storage tank (the height is less than half of the total height of the storage tank).

[0022] In this solution, the nozzle is connected to the water outlet at the bottom of the storage tank, which can ensure that during the process of the water level in the storage tank gradually decreasing as the liquid is consumed, until the water level drops below the water outlet at the bottom of the storage tank, the liquid can enter the nozzle from the water outlet. Thus, the liquid inside the storage tank can be utilized to the maximum extent, improving the utilization rate of the internal space of the storage tank and reducing the waste of liquid.

[0023] Preferably, the nozzles are distributed at intervals in at least one direction of the width, length, and height of the fuselage.

[0024] In this solution, by arranging multiple nozzles at intervals, the spraying range of the liquid can be increased, thereby improving the spraying efficiency of the liquid.

[0025] Preferably, the traveling device includes traveling wheels.

[0026] The number of traveling wheels can be one or more, and its specific forms include but are not limited to universal wheels, directional wheels, driving wheels, and driven wheels.

[0027] This solution recommends one specific traveling device, which has the advantages of simple structure, easy manufacturing and maintenance, and low cost.

[0028] Preferably, a sewage outlet is provided at the bottom of the storage tank.

[0029] The bottom of the storage tank, such as the bottom surface of the storage tank, or a position on the upper part of the side of the storage tank (the height is less than half of the total height of the storage tank).

[0030] This solution can facilitate the removal of foreign objects inside the storage tank, thereby keeping the storage tank clean.

[0031] Preferably, a filling port is provided at the top of the storage tank.

[0032] The top of the storage tank, such as the top surface of the storage tank, or a position on the upper part of the side of the storage tank (the height exceeds half of the total height of the storage tank).

[0033] This solution can facilitate refilling the liquid into the storage tank when the liquid inside the storage tank is exhausted.

[0034] Preferably, a push-pull handle is also connected to the fuselage.

[0035] This solution can facilitate the staff to push and pull the fuselage to move.

[0036] Compared with the prior art, the beneficial effects of the present utility model:

[0037] The utility model provides a spraying device applicable to flammable and explosive places. The fuselage of the traveling device bears the weight of the storage tank and the liquid inside it, and during the movement of the fuselage through the traveling device, it can automatically spray the liquid medicine on the area in front of the nozzle along the moving path of the fuselage, thereby reducing the load of the staff and improving the operation efficiency of the herbicide spraying operation.

[0038] At the same time, since this solution also connects at least one nozzle to the storage tank through a hose, the orientation of at least one nozzle can be freely adjusted relative to the fuselage; it is convenient for the staff to spray the liquid medicine into the spraying dead angle by adjusting the orientation of the nozzle relative to the fuselage when encountering a spraying dead angle, thereby improving the coverage rate of the herbicide spraying operation. Brief Description of the Drawings

[0039] Figure 1 is a schematic structural diagram of a spraying device applicable to flammable and explosive places of the utility model;

[0040] Figure 2 is a schematic diagram of the pipeline working principle of a spraying device applicable to flammable and explosive places of the utility model;

[0041] Reference Signs: 1 - storage tank; 11 - water outlet; 12 - sewage outlet; 13 - filling port; 2 - traveling wheel; 3 - push-pull handle; 4 - nozzle; 5 - hose; 6 - gas source; 7 - pressure reducing device; 8 - pressure gauge; 9 - switch valve. Detailed Embodiment

[0042] The present invention will be further described in detail below in combination with test examples and specific embodiments. However, this should not be understood as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention belong to the scope of the present invention.

[0043] In the description of the specific embodiments of the present invention, without special explanation, the expression terms of the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the invention product / equipment / device is usually used and placed. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present invention or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be understood as a limitation to the present invention.

[0044] In addition, when terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in directions such as "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still perform its function in the solution of the present invention.

[0045] In addition, when expressions such as "first", "second", "third",... appear in the terms, they are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0046] In addition, in the description of the embodiments of the present invention, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be a situation of more than 9.

[0047] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, where terms such as "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. Such a connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0048] Embodiment 1

[0049] As Figures 1 to 2 shown, a spraying device applicable to flammable and explosive places includes a fuselage, a nozzle 4 and a gas source 6; a traveling device and a storage tank 1 for containing liquid are arranged on the fuselage; the nozzle 4 is communicated with the storage tank 1, and the nozzle 4 is used for spraying liquid; the number of nozzles 4 is greater than one, and at least one nozzle 4 is connected with the storage tank 1 through a hose 5; the gas source 6 is communicated with the storage tank 1, and the gas source 6 can pressurize the storage tank 1, so as to drive the liquid in the storage tank 1 to spray out from the nozzle 4.

[0050] In an alternative embodiment, the gas source 6 is a high-pressure gas cylinder with an operating pressure greater than or equal to 8 MPa, such as 28 MPa to 30 MPa. In this way, it is not necessary to use equipment with electronic components such as air compressors or blowers, thereby reducing the risk of explosion in flammable and explosive environments.

[0051] In an alternative embodiment, a pressure reducing device 7 is further provided between the storage tank 1 and the gas source 6. The pressure reducing device 7 is used to reduce the gas pressure entering the storage tank 1 from the gas source 6.

[0052] In an alternative embodiment, a pressure gauge 8 and / or a pressure sensor are provided at both the inlet end and the outlet end of the pressure reducing device 7. It is preferable to use the pressure gauge 8 to avoid introducing electronic components. The range of the pressure gauge 8 at the inlet end of the pressure reducing device 7 is greater than the operating pressure of the gas source 6, such as greater than 30 MPa. The range of the pressure gauge 8 at the outlet end of the pressure reducing device 7 is greater than the operating pressure of the storage tank 1, such as greater than 10 MPa.

[0053] In an alternative embodiment, the gas pressure at the outlet end of the pressure reducing device 7 is greater than or equal to 10 MPa and less than or equal to 20 MPa.

[0054] In an alternative embodiment, as Figure 1 and Figure 2 shown, the nozzles 4 connected to the storage tank 1 through the hose 5 and other nozzles 4 can be divided into two groups and independently controlled by two different switching valves 9 respectively. Thus, when dealing with spraying dead angles, other nozzles 4 can be closed and only the nozzles 4 connected to the storage tank 1 through the hose 5 are used alone, reducing liquid waste.

[0055] In an alternative embodiment, as Figure 2 shown, a water outlet 11 is provided at the bottom of the storage tank 1, and the nozzle 4 is connected to the water outlet 11.

[0056] In an alternative embodiment, the nozzles 4 are spaced apart along the width and / or length direction of the fuselage. As Figure 1 shown, a row of spray openings are provided at intervals along the width direction of the fuselage in front of the fuselage.

[0057] In an alternative embodiment, the traveling device includes traveling wheels 2. Further, the traveling wheels 2 can be passive wheels and are driven manually during operation, thereby avoiding introducing electronic components and reducing the risk of explosion in flammable and explosive environments.

[0058] In an alternative embodiment, a sewage outlet 12 is provided at the bottom of the storage tank 1. As Figure 2 shown, the sewage outlet 12 is provided on the bottom surface of the storage tank 1.

[0059] In an alternative embodiment, a filling port 13 is provided at the top of the storage tank 1. As Figure 2As shown in the figure, the filling port 13 is arranged on the top surface of the storage tank 1. Further, a protective cover is detachably connected to the filling port 13 to prevent foreign objects from entering the storage tank 1.

[0060] In an alternative embodiment, a push-pull handle 3 is also connected to the fuselage. As Figure 1 shown, push-pull handles 3 are arranged on both the left and right sides of one end of the fuselage away from the nozzle 4, which can facilitate the staff to push and pull the fuselage to move manually.

[0061] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spray device applicable to flammable and explosive places, characterized in that, Comprising: A fuselage, on which a traveling device and a liquid storage tank (1) for accommodating liquid are provided, and the traveling device includes traveling wheels (2); Sprayers (4), the sprayers (4) are communicated with the storage tank (1), and the sprayers (4) are used for spraying liquid; the number of the sprayers (4) is greater than one, and the sprayers (4) are spaced apart along at least one of the width, length, and height of the fuselage; at least one of the sprayers (4) is connected to the storage tank (1) through a hose (5); A gas source (6), the gas source (6) includes a high-pressure gas cylinder; the gas source (6) is communicated with the storage tank (1), and the gas source (6) can pressurize the storage tank (1), so as to drive the liquid in the storage tank (1) to spray out from the sprayers (4); A pressure reducing device (7) is further provided between the storage tank (1) and the gas source (6), and the pressure reducing device (7) is used for reducing the air pressure of the gas entering the storage tank (1) from the gas source (6).

2. The spray device applicable to flammable and explosive places according to claim 1, wherein A pressure gauge (8) and / or a pressure sensor are provided at both the intake end and the outlet end of the pressure reducing device (7).

3. The spray device applicable to flammable and explosive places according to claim 1, wherein The air pressure at the outlet end of the pressure reducing device (7) is greater than or equal to 10 MPa and less than or equal to 20 MPa.

4. The spray device applicable to flammable and explosive places according to claim 1, wherein A water outlet (11) is provided at the bottom of the storage tank (1), and the sprayer (4) is communicated with the water outlet (11).

5. A spray device applicable to flammable and explosive places according to any one of claims 1 to 4, characterized in that, A sewage outlet (12) is provided at the bottom of the storage tank (1).

6. A spray device applicable to flammable and explosive places according to any one of claims 1 to 4, characterized in that, A filling port (13) is provided at the top of the storage tank (1).

7. A spray device applicable to flammable and explosive places according to any one of claims 1 to 4, characterized in that, A push-pull handle (3) is further connected to the fuselage.

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