Pulse scanning type spray head structure with elastic compensation

Abstract

The invention discloses a pulse scanning type nozzle structure with an elastic compensation function. The pulse scanning type nozzle structure aims at solving the problems that an existing nozzle for a coal conveying pipe gallery is poor in flushing effect, high in manufacturing cost, heavy in equipment burden and the like. The structure comprises a shell, a hose is arranged in the shell, the middle of the hose is connected with the inner wall of the shell through an elastic device, and the water outlet end of the hose is connected with a nozzle; under the action of gravity of the nozzle, the hose is bent; when water pressure changes, the spatial form of the hose changes, and the height of the water outlet is gradually increased along with increase of water pressure. The flushing device does not need a complex structure, optimizes the flushing effect and can adapt to severe environments.

Description

TECHNICAL FIELD

[0001] The present application relates to a pulse scanning nozzle structure with elastic compensation. BACKGROUND

[0002] In order to achieve effective flushing of the gallery, water nozzles are usually needed in coal conveying pipe galleries. In the prior art, there are mainly two ways to switch between near-field and far-field flushing: one is to use a complex motion structure to change the spray angle or position of the nozzle through mechanical transmission; the other is to only change the water pressure to flush the far field at high water pressure and the near field at low water pressure.

[0003] However, the above-mentioned methods have obvious defects: the use of a complex motion structure increases the cost and maintenance difficulty of the equipment, and is easily affected by the dust and vibration in the coal conveying pipe gallery and fails; when only adjusting the water pressure, the water flow intensity and water output of near-field flushing at low water pressure are extremely low, and the flushing effect is poor; far-field flushing at high water pressure needs to increase the water pressure to a maximum value, which greatly increases the operating burden and energy consumption of the water pump. In addition, the existing nozzle for coal conveying pipe gallery often needs to be matched with a complex control structure to achieve full flushing, which further limits its applicability.

[0004] Therefore, there is an urgent need for a nozzle structure that is simple in structure, does not require complex control, can balance the flushing effect of the near field and the far field, and reduces the burden on the equipment. SUMMARY

[0005] The present application aims to provide a pulse scanning nozzle structure with elastic compensation, which effectively solves the problems of poor flushing effect or high cost and heavy equipment burden of the existing coal conveying pipe gallery nozzle. The specific solutions are as follows:

[0006] A pulse scanning nozzle structure with elastic compensation, comprising a shell, a soft pipe arranged inside the shell, and an elastic device connecting the middle part of the soft pipe to the inner wall of the shell.

[0007] The water outlet end of the soft pipe is connected to a nozzle, which is placed in a bent shape in the shell under the influence of its own gravity. When the water pressure in the soft pipe changes, the spatial form of the soft pipe changes. As the water pressure gradually increases, the height of the water outlet of the soft pipe gradually increases.

[0008] Further, the elastic device is a spring or an elastic rope.

[0009] Further, the soft pipe is an elastic water pipe wrapped with a metal braid layer. This structure not only ensures the elasticity of the soft pipe, but also enhances its strength and durability, and can better adapt to changes in water pressure and the use environment.

[0010] Further, the head of the shell is provided with a limiting column, and the highest point of the hose is lower than the lowest surface of the limiting column.

[0011] Further, the middle part of the shell is provided with threaded holes, and an adjustable screw is screwed in the threaded holes, one end of the elastic device is connected with the bottom of the adjustable screw, and the other end of the elastic device is connected with the middle part of the hose.

[0012] Further, the number of the threaded holes is six, and an adjustable screw is screwed in one of the threaded holes.

[0013] Further, the material of the shell is stainless steel, and the thickness is 1.5 mm.

[0014] The working principle of the present application is as follows:

[0015] When the near-field area of the coal conveying pipe gallery needs to be flushed, the water pressure in the hose is reduced, at this time, the hose is kept in a bent state under the action of the pulling force of the elastic device and its own gravity, the water outlet height is low, and the water flow can effectively flush the near-field area with appropriate intensity and water flow.

[0016] When the far-field area needs to be flushed, the water pressure in the hose is increased, the pushing force generated by the water pressure and the pulling force of the spring make the hose overcome its own gravity, and the water outlet height gradually increases, so that the water flow is sprayed to a farther area, realizing far-field flushing.

[0017] Advantages:

[0018] 1. No need for complex structure: through the cooperation of the hose and the elastic device, the self-adaptive adjustment of the water outlet height can be realized only by changing the water pressure, without the need for complex motion transmission structure or control device, thereby reducing the equipment cost and maintenance difficulty.

[0019] 2. Optimize flushing effect: under the action of gravity, the nozzle naturally droops, the water outlet height is low, the water flow pressure can be kept in a reasonable range, and the water flow intensity and water flow of near-field flushing are ensured; under the help of the spring, the hose overcomes the gravity, the water outlet height is high, without the need to increase the water pressure to the maximum value of the prior art, far-field flushing can be realized, and the problem of poor near-field flushing effect is effectively solved.

[0020] 3. Can adapt to harsh environment: simple and compact structure, hose and elastic device strong resistance to dust, anti-vibration ability, suitable for complex environment of coal pipe gallery. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a kind of main body schematic diagram of pulse type spray head structure with elastic compensation;

[0022] Figure 2 It is a kind of internal structure schematic diagram of pulse type spray head structure with elastic compensation;

[0023] 1. shell, 2. water pipe, 3. adjustable screw, 4. hose, 5. limit column, 6. nozzle, 7. spring. DETAILED DESCRIPTION

[0024] In order to deepen the understanding of the present application, the present application will be further described below in conjunction with examples and drawings, which are only used to explain the present application and do not constitute a limitation on the protection scope of the present application.

[0025] Example 1: as shown in Figure 1 、 Figure 2 A kind of pulse scanning type spray head structure with elastic compensation, including shell 1, shell 1 adopts stainless steel material, thickness is 1.5 mm, shell 1 is provided with hose 4 inside, hose 4 is elastic water pipe with a layer of metal braid on the outer surface. The middle part of hose 4 is connected to the inner wall of shell 1 through spring 7, the middle part of shell 1 is provided with six threaded holes, one of which is screwed with adjustable screw 3, one end of spring 7 is connected to the bottom of adjustable screw 3, and the other end is connected to the middle part of hose 4.

[0026] The water outlet end of hose 4 is connected to nozzle 6, which is placed in shell 1 in a bent shape under the influence of its own gravity. The head of shell 1 is provided with limit column 5, and the highest point of hose 4 is lower than the lowest surface of limit column 5.

[0027] When it is necessary to flush the near-field area of coal pipe gallery, the water pressure in hose 4 is reduced, hose 4 is kept bent under the action of spring 7 tension and its own gravity, nozzle 6 is low in height, and the water flow flushes the near-field area with appropriate intensity and water output. When it is necessary to flush the far-field, increase the water pressure, the water pressure and the spring 7 tension make hose 4 overcome gravity, and the height of nozzle 6 gradually increases to spray water to a farther area.

[0028] During use, according to actual flushing requirements, suitable threaded hole can be selected to install adjustable screw 3, and the position of adjustable screw 3 in the threaded hole can be adjusted to change the tension of spring 7 on hose 4, so as to achieve the best flushing effect.

[0029] Finally, it is to be explained that the above embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A pulse-scanning nozzle structure with elastic compensation, characterized in that, It includes a housing, inside which a flexible hose is installed, and the middle of the hose is connected to the inner wall of the housing via an elastic device; The outlet end of the hose is connected to the nozzle. Under the influence of the nozzle's own weight, the hose is placed in a bent shape inside the housing. When the water pressure in the hose changes, the spatial shape of the hose changes; as the water pressure gradually increases, the height of the hose's outlet gradually increases.

2. The pulse scanning nozzle structure with elastic compensation according to claim 1, characterized in that, The elastic device is a spring or an elastic rope.

3. The pulse scanning nozzle structure with elastic compensation according to claim 2, characterized in that, The hose is an elastic water pipe with a metal braided layer wrapped around its outer surface.

4. A pulse-scanning nozzle structure with elastic compensation according to claim 2, characterized in that, The head of the outer shell is provided with a limiting post, and the highest point of the hose is lower than the lowest surface of the limiting post.

5. The pulse scanning nozzle structure with elastic compensation according to claim 1, characterized in that, The outer casing has a threaded hole in the middle, and an adjustable screw is screwed into the threaded hole. One end of the elastic device is connected to the bottom of the adjustable screw, and the other end of the elastic device is connected to the middle of the hose.

6. The pulse scanning nozzle structure with elastic compensation according to claim 5, characterized in that, The number of threaded holes is 6, and an adjustable bolt is screwed into one of the threaded holes.

7. A pulse-scanning nozzle structure with elastic compensation according to claim 1, characterized in that, The outer shell is made of stainless steel and has a thickness of 1.5mm.

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