Spraying assembly, spraying system and waterproof spraying test method

Abstract

The invention relates to the technical field of waterproof spraying tests, and discloses a spraying assembly, a spraying system and a waterproof spraying test method.The spraying assembly comprises a water spraying pipe and a plurality of first nozzles, the water spraying pipe is used for being connected with a water source, and the first nozzles are arranged on the water spraying pipe; the plurality of first nozzles are arranged in an array along the direction perpendicular to the axial direction of the first nozzles, the spraying section of each first nozzle is square, and due to the adoption of the first nozzles with the square spraying sections, the appropriate distance between the first nozzles can be determined according to the distance between the spraying assembly and the to-be-tested area; the edges of the spraying sections of the first sprayers just coincide, so that water mist can comprehensively cover the whole to-be-tested area, the basic requirements of the waterproof spraying test are met, water resource waste caused by overlapping of the spraying sections can be reduced, and the energy-saving and environment-friendly level of the waterproof spraying test is improved.

Description

Technical Field

[0001] This application relates to the field of waterproof spray testing technology, specifically to spray components, spray systems, and waterproof spray testing methods. Background Technology

[0002] An oil and gas fracturing system is a specialized engineering machine, generally consisting of a chassis and various equipment mounted on the chassis (such as electrical instruments). Before leaving the factory, the oil and gas fracturing system needs to undergo a waterproof spray test to verify the waterproof sealing and environmental adaptability of the various equipment mounted on the chassis. During the test, multiple arrayed atomizing nozzles create a spray cross-section covering the test area of ​​the equipment, continuously spraying the surface of the equipment for a certain period of time.

[0003] In related technologies, in order to ensure that the water mist can cover the entire area, the spray cross-sections of different atomizing nozzles will overlap significantly, causing the water volume in the overlapping area to exceed the design target. Since the waterproof spray test needs to last for a certain period of time, there is a serious waste of water resources during the spraying process. Summary of the Invention

[0004] This application provides a spray assembly, a spray system, and a waterproof spray test method to solve the problem of water waste in waterproof spray tests.

[0005] In a first aspect, this application provides a spray assembly, including a water pipe and a first nozzle. The water pipe is used to connect to a water source. The first nozzle is disposed on the water pipe, and there are multiple first nozzles arranged in an array along a direction perpendicular to the axial direction of the first nozzle. The spray cross-section of the first nozzle is square.

[0006] Beneficial effects: The spray assembly is suitable for waterproof spray tests. Because it uses a first nozzle with a square spray cross-section, the appropriate spacing of the first nozzle can be determined according to the distance between the spray assembly and the test area, so that the edges of the spray cross-sections of each first nozzle just overlap. This allows the water mist to fully cover the entire test area, meeting the basic requirements of the waterproof spray test, while also reducing water waste caused by overlapping spray cross-sections and improving the energy-saving and environmental protection level of the waterproof spray test.

[0007] In one alternative embodiment, the first nozzle includes an orifice along the axial direction and a plurality of water guide grooves circumferentially surrounding the orifice, the axis of the water guide grooves being radially along the first nozzle and one end intersecting the orifice.

[0008] Beneficial effects: By using a first nozzle with multiple water guide channels, the sprayed water will spread outward under the guidance of the water guide channels to form corresponding spray surfaces. The spray surfaces formed by different water guide channels overlap. The water sprayed along different water guide channels will collide with each other in the overlapping area and be further dispersed to form water mist with smaller particle size, and make the distribution of water mist more uniform, thereby improving the effect of waterproof spray test.

[0009] In one alternative embodiment, the water guide channel is in the shape of a semi-cone, and there are four water guide channels, with their bottom ends intersecting with the nozzle.

[0010] Beneficial effects: By designing a semi-conical water guide channel, the water flow sprayed along the channel forms a fan-shaped spray surface with the apex of the channel as the angle. One side of the spray surface overlaps with the spray surface of one of the adjacent water guide channels, and the other side overlaps with the spray surface of another adjacent water guide channel. The sprayed water flow is fully collided and dispersed in the overlapping area and rushes forward to the test area, thereby making the water mist more evenly distributed in the square spray section and improving the effect of the waterproof spray test.

[0011] In one alternative embodiment, the generatrix of the water guide channel is a straight line.

[0012] Beneficial effects: In other words, the shape of the water guide channel is a semi-cone at this time. The arc-shaped wall of the water guide channel can better guide the water flow to spread outward along the wall of the water guide channel, so that the shape of the spray surface meets the design requirements and ensures that the water flow sprayed along different water guide channels can collide accurately.

[0013] In one optional implementation, a plane perpendicular to the axis of the water guide channel and parallel to the axis of the nozzle is defined as a reference plane. The intersection point of the extension of the generatrix and the reference plane is A, and the intersection point of the axis of the water guide channel and the reference plane is B. The distance L between A and B is greater than the radius R of the nozzle.

[0014] Beneficial effects: The distance L between A and B reflects the radius of the bottom of the water guide channel. Making L greater than R helps the water sprayed from the middle nozzle to diffuse more into the surrounding water guide channel, ensuring that the water guide channel forms a sufficiently large spray surface. This allows adjacent spray surfaces to overlap as required by the design and form a square spray cross section, avoiding the problem of uneven water density from the center to the periphery during spraying.

[0015] In one alternative embodiment, the spray assembly further includes a vortex core disposed inside the first nozzle and including guide vanes inclined to the axial direction, the vortex core being capable of rotating under the action of water flow.

[0016] Beneficial effects: The axially flowing water impacts the guide vanes, applying a torque around the axial direction to the vortex core, causing it to rotate. This cuts and breaks up the water flow, achieving a preliminary dispersion effect before the water is ejected, which helps to form a smaller water mist and makes the water mist distribution more uniform.

[0017] In one optional embodiment, the first nozzle further includes a water inlet and a flow channel, the water inlet, the flow channel and the nozzle being connected in sequence, and a limiting step being formed between the flow channel and the water inlet, the swivel core being disposed at the water inlet, and the limiting step limiting the swivel core.

[0018] Beneficial effects: By placing the vortex core at the water inlet and using the diameter variation of the flow channel and the water inlet to constrain the position of the vortex core, the structural design of the first nozzle can be simplified, and the maintenance and replacement of the vortex core can be facilitated.

[0019] Secondly, this application also provides a spraying system, including a water pump and the spraying components provided in this application. There are multiple spraying components, which are used to spray different test areas of the product. One end of the water pump is used to connect to a water source, and the other end is connected to the spraying components through pipelines.

[0020] Beneficial effects: The spray system includes the spray components provided in this application, and therefore has the beneficial effects brought about by the spray components, which will not be elaborated here.

[0021] In one optional embodiment, the sprinkler system further includes a sprinkler hose and a second nozzle, the sprinkler hose being used to connect to the water source, and the second nozzle being disposed at the end of the sprinkler hose.

[0022] Beneficial effects: For smaller test areas, a spray hose with a single second nozzle can be used for spraying, thereby improving the flexibility of the spray system and reducing water waste.

[0023] Thirdly, this application also provides a waterproof spray test method, which uses the spray system provided in this application and includes: determining the test area of ​​the product to be tested; obtaining a preset spray distance D of the spray component; adjusting the position of the spray component according to the preset spray distance D; and spraying the product.

[0024] Beneficial effects: The waterproof spray test method uses the spray system provided in this application, and therefore has the beneficial effects brought by the spray components, which will not be elaborated here. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the spray system according to an embodiment of this application; Figure 2 This is an exploded view of a spray assembly according to an embodiment of this application, showing the assembly method of the first nozzle and the swirl core; Figure 3 for Figure 2 A cross-sectional schematic diagram of the spray assembly in the embodiment; Figure 4 for Figure 2 A schematic diagram illustrating the principle of the spray assembly forming a square spray cross-section in the embodiment; Figure 5 for Figure 2 Simulation diagram of water mist distribution across the spray cross-section of the spray assembly in the embodiment; Figure 6 for Figure 2 A schematic diagram of the spray assembly in the embodiment; Figure 7 for Figure 2 Another exploded view of the spray assembly in the embodiment.

[0027] Explanation of reference numerals in the attached figures: 101. Sprinkler pipe; 102. First sprinkler head; 1021. Spray nozzle; 1022. Water guide channel; 1023. Water inlet; 1024. Flow channel; 103. Rotary core; 1031. Guide vane; 1032. Flow hole; 201. Sprinkler hose; 202. Second sprinkler head; 301. Water pump; 302. Water inlet pipe; 303. Solenoid valve; 304. Rotary valve; 305. Pressure reducing valve; 306. Flow meter; 307. Pressure gauge; 308. Filter; 309. Water tank; 310. Water level sensor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a," "an," and "comprising" as used herein may also mean including the plural forms. The terms "comprising," "including," and "having" are inclusive and therefore indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0030] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Furthermore, in the description of this application, unless otherwise expressly specified and limited, the terms "set up" and "connected" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Oil and gas fracturing systems need to operate in complex and harsh field environments, so it is necessary to conduct waterproof spray tests on all kinds of electrical instruments and equipment to verify their waterproof sealing and environmental adaptability.

[0032] Oil and gas fracturing systems are characterized by their large size; some products can reach 12m*2.5m*4m. Therefore, multiple arrayed atomizing nozzles are required during the test to create a spray cross-section that fully covers the equipment and meets the test requirements.

[0033] In related technologies, atomizing nozzles with circular spray cross-sections are commonly used to construct spray arrays. In order to ensure that the water mist can cover the entire area, the spray cross-sections of different atomizing nozzles will overlap significantly, causing the water volume in the overlapping area to exceed the design target. Since the waterproof spray test needs to last for a certain period of time, there is a serious waste of water resources during the spraying process.

[0034] The following is combined with Figures 1 to 7 This describes an embodiment of the present application.

[0035] Reference Figure 1According to an embodiment of this application, a spraying assembly is provided, including a water pipe 101 and a first nozzle 102. The water pipe 101 is used to connect to a water source. The first nozzle 102 is disposed on the water pipe 101, and there are multiple first nozzles 102 arranged in an array along a direction perpendicular to the axial direction of the first nozzle 102. The spraying cross section of the first nozzle 102 is square.

[0036] The spray assembly is suitable for conducting waterproof spray tests. Because it uses a first nozzle 102 with a square spray cross section, the appropriate spacing of the first nozzle 102 can be determined according to the distance between the spray assembly and the test area, so that the edges of the spray cross sections of each first nozzle 102 just overlap. This allows the water mist to fully cover the entire test area, meeting the basic requirements of the waterproof spray test, while also reducing water waste caused by overlapping spray cross sections and improving the energy-saving and environmental protection level of the waterproof spray test.

[0037] It is understandable that the first nozzle 102 can be arrayed according to the specific shape of the area to be tested. The first nozzle 102 can be arrayed in one direction or in two directions.

[0038] For example, in Figure 1 In the illustrated embodiment, the spray assembly has multiple water pipes 101, which are connected in a crisscross pattern to form a water spray frame. The first nozzle 102 is located at the node of the water spray frame (that is, the intersection of the water pipes 101), so that they are arranged in an array in mutually perpendicular horizontal and vertical directions to meet the spray test requirements of a large test area.

[0039] It should be pointed out that, Figure 1 Only one connection method of the water spray pipe 101 is shown schematically. In other embodiments not shown, multiple water spray pipes 101 can also be connected and combined in other ways to adapt to the needs of test areas of different shapes. For test areas of the same shape, multiple water spray pipes 101 may also have a variety of feasible connection methods, which are not limited in this application.

[0040] Optionally, in some embodiments, the first nozzle 102 includes an axial nozzle 1021 and a plurality of water guide grooves 1022 circumferentially surrounding the nozzle 1021, the axis of the water guide grooves 1022 being radially along the first nozzle 102, and one end intersecting the nozzle 1021.

[0041] By employing a first nozzle 102 with multiple water guide channels 1022, the sprayed water flow will spread outward under the guidance of the water guide channels 1022, forming corresponding spray surfaces. The spray surfaces formed by different water guide channels 1022 overlap. The water flow sprayed along different water guide channels 1022 will collide with each other in the overlapping area and be further dispersed, forming water mist with smaller particle size, and making the distribution of water mist more uniform, thereby improving the effect of the waterproof spray test.

[0042] Furthermore, in order to form a square spray cross-section, in some embodiments, reference is made to... Figure 2 and Figure 5 The water guide channel 1022 is in the shape of a semi-cone, and there are four water guide channels 1022, with the bottom end intersecting with the nozzle 1021.

[0043] By designing a semi-conical water guide channel 1022, the water flow sprayed along the water guide channel 1022 forms a fan-shaped spray surface with the apex of the water guide channel 1022 as the angle. One side of the spray surface overlaps with the spray surface of one of the adjacent water guide channels 1022, and the other side overlaps with the spray surface of another adjacent water guide channel 1022. The sprayed water flow is fully collided and dispersed in the overlapping area and rushes forward to the test area, so that the water mist is more evenly distributed in the square spray section, thus improving the effect of the waterproof spray test.

[0044] It should be noted that in the waterproof spray test, the spray water volume per unit area needs to reach the set water volume in order to meet the test requirements. Therefore, improving the uniformity of water mist distribution of the first nozzle 102 can also help reduce the flow rate required for the waterproof spray test. By designing a semi-conical water guide channel 1022, water waste can be further reduced and the energy-saving and environmental protection level of the waterproof spray test can be improved. In addition, improving the uniformity of water mist can also avoid the problem of insufficient water volume in some areas and ensure the reliability of the waterproof spray test.

[0045] In some embodiments, refer to Figure 3 The busbar of the water guide channel 1022 is a straight line.

[0046] In other words, the water guide channel 1022 is shaped like a semi-cone. The curved wall of the water guide channel 1022 can better guide the water flow to spread circumferentially along the wall of the water guide channel 1022, so that the shape of the spray surface meets the design requirements and ensures that the water flow sprayed along different water guide channels 1022 can collide accurately. At the same time, the straight generatrix design can also avoid hindering the radial diffusion of the water flow, which helps to form the required square spray cross section.

[0047] Specifically, refer to Figure 4 , Figure 4The diagram shows a spray surface formed using a semi-conical water guide trough 1022. On one hand, since the water guide trough 1022 is a semi-cone, the spray surface gradually narrows from the center outwards, presenting a fan shape. The center of the fan shape is the vertex of the square spray section. On the other hand, since the water guide trough 1022 is a semi-cone, the spray surface becomes a 90° fan shape. Adjacent fan-shaped spray surfaces can overlap each other within a suitable range. The water mist in the overlapping area is fully collided and dispersed, so that the water mist can be evenly distributed in the spray section as required by the design.

[0048] Figure 5 This demonstrates the use of fluent software for... Figure 2 The distribution diagram of water mist in the spray cross section obtained by fluid simulation of the first nozzle 102 in the embodiment shows that the water guide groove 1022 with a semi-cone shape of a straight generatrix can make the water mist distribution as uniform as possible, improve the energy-saving and environmental protection level of the waterproof spray test, and ensure the reliability of the waterproof spray test.

[0049] Furthermore, in some embodiments, a plane perpendicular to the axis of the water guide channel 1022 and parallel to the axis of the nozzle 1021 is defined as a reference plane, the intersection point of the extension line of the generatrix and the reference plane is A, the intersection point of the axis of the water guide channel 1022 and the reference plane is B, and the distance L between A and B is greater than the radius R of the nozzle 1021.

[0050] The distance L between A and B reflects the radius of the bottom of the water guide trough 1022. Making L greater than R helps to allow more water sprayed from the central nozzle to diffuse into the surrounding water guide trough, ensuring that the water guide trough 1022 forms a sufficiently large spray surface. This allows adjacent spray surfaces to overlap as required by the design and form a square spray cross section, avoiding the problem of uneven water density from the center to the periphery during spraying.

[0051] Optionally, in some embodiments, the distance L can be set to 1.04 to 1.1 times the radius R, thereby ensuring that the spray surfaces overlap as required by the design while avoiding the water guide channel 1022 from becoming too large. Optionally, in some embodiments, referring to... Figure 2 and Figure 7 The spray assembly also includes a swirl core 103, which is disposed inside the first nozzle 102 and includes guide vanes 1031 inclined in the axial direction. The swirl core 103 can rotate under the action of water flow.

[0052] The water flowing along the axial direction impacts the guide vanes 1031, applying a torque around the axial direction to the swivel core 103, causing the swivel core 103 to rotate. This cuts and breaks up the water flow, achieving a preliminary dispersion effect before the water flow is ejected, which helps to form a water mist with a smaller particle size and makes the water mist distribution more uniform.

[0053] Optionally, in some embodiments, the number of guide vanes 1031 is two, and the two guide vanes 1031 are symmetrical about the axis of the swirl core 103. On the one hand, using two guide vanes 1031 can make the placement of the swirl core 103 more stable, ensuring that the swirl core 103 can stably perform its design purpose under the impact of water flow. On the other hand, using two rather than more guide vanes 1031 can simplify the structure of the swirl core 103 while meeting the design purpose, which is beneficial to the miniaturization of the swirl core 103.

[0054] Optionally, a flow passage 1032 is provided on the guide vane 1031, so that a portion of the water flowing along the guide vane 1031 can pass through the flow passage 1032 and pass through the vortex core 103, thereby enhancing the cutting and breaking effect of the vortex core 103 on the water flow.

[0055] Optionally, in some embodiments, the first nozzle 102 further includes an inlet 1023 and a flow channel 1024. The inlet 1023, the flow channel 1024, and the nozzle are sequentially connected, and a limiting step is formed between the flow channel 1024 and the inlet 1023. The swivel core 103 is disposed at the inlet 1023, and the limiting step limits the swivel core 103. By disposing the swivel core 103 at the inlet 1023 and using the diameter variation of the flow channel 1024 and the inlet 1023 to constrain the position of the swivel core 103, the structural design of the first nozzle 102 can be simplified, and the maintenance and replacement of the swivel core 103 can be facilitated.

[0056] Secondly, referring to Figure 1 This application also provides a spraying system, including a water pump 301 and the spraying components provided in this application. There are multiple spraying components, which are used to spray different test areas of the product. One end of the water pump 301 is connected to a water source, and the other end is connected to the spraying components through pipelines.

[0057] The spray system includes the spray components provided in this application, and therefore has the beneficial effects brought by the spray components, which will not be described in detail here.

[0058] For example, in some embodiments, there are three spraying components, namely a left side component, a right side component, and a rear side component, which are used to conduct spraying tests on the left side, right side, and rear side of the oil and gas fracturing system to meet the actual needs of the oil and gas fracturing system. The front of the oil and gas fracturing system is the driver's cab, so there is no need to conduct a spraying test in this stage.

[0059] Optionally, in some embodiments, the spraying system further includes a spray hose 201 and a second nozzle 202. The spray hose 201 is used to connect to a water source, and the second nozzle 202 is disposed at the end of the spray hose 201. It is understood that, to meet the requirements of large-scale oil and gas fracturing systems, the spray cross-section of the spray assembly is relatively large. For localized areas requiring separate testing (e.g., secondary testing of unqualified areas during verification), using the entire spray assembly for overall spraying would result in significant water waste. In such cases, a spray hose 201 with a single second nozzle 202 can be used for manual, localized spraying, thereby improving the flexibility of the spraying system and reducing water waste.

[0060] Since the second nozzle 202 is a single spray, the second nozzle 202 can use a nozzle with the same square spray cross-section as the first nozzle 102, or a conventional nozzle with a circular spray cross-section. This application does not limit this.

[0061] Optionally, in some embodiments, the inlet 1023 of the water pump 301 is connected to the inlet pipe 302 through the first pipeline, and the inlet pipe 302 is connected to an external water source to supply water to the water pump 301.

[0062] In some embodiments, a water tank 309 and a filter 308 are provided on the first pipeline. Water from the inlet pipe 302 first flows into the water tank 309 and then enters the water pump 301 through the filter 308. On the one hand, the water tank 309 and the filter 308 can play the roles of preliminary filtration (sedimentation filtration) and secondary filtration, preventing impurities from entering the spray assembly and clogging the first nozzle 102. On the other hand, the water tank 309 can also play a buffering and emergency role, reducing the impact of upstream water supply fluctuations on the stability of the water mist.

[0063] In addition, a water level sensor 310 can be installed on the water tank 309 to monitor the water level in the water tank 309 and to trigger an alarm when the water level is too low.

[0064] In some embodiments, a rotary valve 304 and a solenoid valve 303 are provided between the water tank 309 and the water inlet pipe 302. The solenoid valve 303 can improve the automation level of the spray system, while the rotary valve 304 can serve as a backup to improve the reliability of the spray system.

[0065] In some embodiments, the outlet of the water pump 301 is connected to the spray assembly through a second pipeline and a third pipeline connected in parallel. The second pipeline is equipped with a solenoid valve 303 and a rotary valve 304, and the rotary valve 304 is in a normally open state, which is suitable for automatic control. The third pipeline is equipped with a pressure reducing valve 305 and a rotary valve 304, and the rotary valve 304 is in a normally closed state, which is suitable as a backup for the second pipeline and improves the reliability of the spray system.

[0066] Furthermore, the second and third pipelines can also be equipped with flow meters 306 and pressure gauges 307 to monitor the water supply and ensure that the test requirements are met.

[0067] In some embodiments, the second and third pipelines are also connected to the water inlet pipe 302 via a fourth pipeline. The fourth pipeline is connected in parallel with the first pipeline and the water pump 301, so that emergency water supply can be provided when the water pump 301 fails, thereby improving the reliability of the sprinkler system.

[0068] Thirdly, this application also provides a waterproof spray test method, which uses the spray system provided in this application and includes the following steps: Step S110: Determine the test area for the product to be tested.

[0069] It is understood that the waterproof spray test method is applicable to the waterproof spray test of various electrical instrumentation equipment in oil and gas fracturing systems. In this case, the test area is the area where the operation panel and display panel of the relevant equipment are located. Therefore, the test area can be approximately flat, rather than a complex-shaped surface such as an engine, which is suitable for using the waterproof spray test method of this application to reduce water waste.

[0070] Step S120: Obtain the preset spray distance D of the spray assembly.

[0071] Since sprinkler systems are generally built in the form of sprinkler stations, the spacing between each first nozzle 102 in the sprinkler assembly has been predetermined. The spray cross-section of the first nozzle 102 increases with the increase of distance. Therefore, for the first nozzles 102 with a fixed spacing, there is a corresponding preset spray distance D, so that the edges of the spray cross-sections of each first nozzle 102 just connect, taking into account both full coverage and non-overlapping spray cross-sections.

[0072] Step S130: Adjust the position of the spray component according to the preset spray distance D.

[0073] Specifically, considering that the test area still has some unevenness, the minimum distance between the plane where the spray component is located and the test area can be equal to the preset spray distance D, so as to ensure full coverage of the test area.

[0074] Step S140: Spray the product.

[0075] Beneficial effects: The waterproof spray test method uses the spray system provided in this application, and therefore has the beneficial effects brought by the spray components, which will not be elaborated here.

[0076] Optionally, in some embodiments, the waterproof spray test method further includes: Step S150: If the area to be tested is smaller than the area of ​​the spray cross section of a single first nozzle 102 at a preset spray distance D, then a local spray test is performed using a second nozzle 202.

[0077] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A spray assembly, characterized in that, include: Sprinkler pipe (101) is used to connect to a water source; The first nozzle (102) is disposed on the water spray pipe (101), and there are multiple first nozzles (102) arranged in an array along a direction perpendicular to the axial direction of the first nozzle (102), and the spray cross section of the first nozzle (102) is square.

2. The spray assembly according to claim 1, characterized in that, The first nozzle (102) includes an orifice (1021) along the axial direction and a plurality of water guide grooves (1022) circumferentially surrounding the orifice (1021), the axis of the water guide grooves (1022) being radially along the first nozzle (102) and one end intersecting the orifice (1021).

3. The spray assembly according to claim 2, characterized in that, The water guide channel (1022) is in the shape of a semi-cone, and there are four water guide channels (1022), with the bottom end intersecting with the nozzle (1021).

4. The spray assembly according to claim 3, characterized in that, The generatrix of the water guide channel (1022) is a straight line.

5. The spray assembly according to claim 4, characterized in that, A plane perpendicular to the axis of the water guide channel (1022) and parallel to the axis of the nozzle (1021) is defined as the reference plane. The intersection point of the extension line of the generatrix and the reference plane is A, and the intersection point of the axis of the water guide channel (1022) and the reference plane is B. The distance L between A and B is greater than the radius R of the nozzle (1021).

6. The spray assembly according to claim 1, characterized in that, The spray assembly also includes a swirl core (103), which is disposed inside the first nozzle (102) and includes guide vanes (1031) inclined to the axial direction. The swirl core (103) can rotate under the action of water flow.

7. The spray assembly according to claim 6, characterized in that, The first nozzle (102) further includes a water inlet (1023) and a flow channel (1024). The water inlet (1023), the flow channel (1024) and the nozzle are connected in sequence, and a limiting step is formed between the flow channel (1024) and the water inlet (1023). The swivel core (103) is disposed at the water inlet (1023), and the limiting step limits the swivel core (103).

8. A spraying system, characterized in that, include: The spray assembly according to any one of claims 1 to 7, wherein there are multiple spray assemblies, each used for spraying different test areas of the product; A water pump (301) has one end connected to a water source and the other end connected to the spray assembly via a pipeline.

9. The spray system according to claim 8, characterized in that, The spray system also includes a spray hose (201) and a second nozzle (202), the spray hose (201) being used to connect to the water source, and the second nozzle (202) being disposed at the end of the spray hose (201).

10. A waterproof spray test method, characterized in that, The waterproof spray test method uses the spray system described in claim 8 or 9, and the waterproof spray test method includes: Determine the test area for the product to be tested; Obtain the preset spray distance D of the spray assembly; Adjust the position of the spray assembly according to the preset spray distance D; The product is sprayed.

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