Novel steam pipeline buffer device

Abstract

The utility model provides a novel steam pipeline buffering device which is installed in a pump shell pipeline between a vacuum pump and a condenser, and the pump shell pipeline comprises an inclined section and a horizontal section located at the bottom of the inclined section. The buffer device comprises a plurality of buffer pads laid on a bottom plate of the pipeline at the bottom of the horizontal section, the upper surfaces of the buffer pads are inclined planes, steam ejected by the vacuum pump can be ejected to the inclined planes of the buffer pads after passing through the inclined section of the pump shell pipeline, and the inclined planes are used for reducing the incident angle of steam flow. And during steam scouring, the effect of relieving scouring force can be achieved through reflection of the buffer pad, so that the pump body pipeline is more wear-resistant, and the stability of a vacuum system is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical equipment technical field, specifically, especially, a kind of novel steam pipeline buffer device. BACKGROUND

[0002] At present, the vacuum treatment of steel plant is all adopted steam extraction system vacuum degree, steam flows at high speed in pump system, and it is very serious to scour pump body pipeline wall at system inflection point position, often leading to pump body pipeline is brushed leakage, causing unable to extract vacuum, very easy to produce production accident, affect production, therefore, urgently need to provide a kind of device which can buffer steam scour at the inflection point of vacuum pump pipeline. UTILITY MODEL CONTENT

[0003] According to the above-mentioned existing metallurgical vacuum pump pipeline inflection point place pipe is easy to be scoured by steam and brushed leakage technical problem, and provide a kind of novel steam pipeline buffer device, to ensure that the inflection point of vacuum pump pipeline is not easy to leak, install buffer pad at inflection point, when steam scouring, it can be reflected by buffer pad to achieve the effect of relieving scouring strength, so that pump body pipeline is more wear-resistant, greatly improve the stability of vacuum system.

[0004] The technical means adopted by the utility model are as follows:

[0005] A kind of novel steam pipeline buffer device is installed in the pump shell pipeline between vacuum pump and condenser, the pump shell pipeline includes inclined section and horizontal section at the bottom of the inclined section;The buffer device includes several buffer pads laid on the pipeline bottom plate of the horizontal section bottom, the upper surface of the buffer pad is inclined surface, the steam ejected by the vacuum pump can be sprayed on the inclined surface of the buffer pad after passing through the inclined section of the pump shell pipeline, and the inclined surface is used to reduce the incidence angle of steam flow.

[0006] Further, when the buffer pad is installed on the pipeline bottom plate, the vertex of the inclined surface is towards the side where the condenser is located.

[0007] Further, the several buffer pads on the pipeline bottom plate are closely arranged in matrix.

[0008] Further, the length of the buffer pad is 250mm, and the width is 200mm.

[0009] Further, the inclination angle of the inclined surface of the buffer pad is 15-25 °;The included angle between the inclined direction of the inclined section and the inclined surface of the buffer pad is 115-125 °.

[0010] Further, the buffer pad is detachably installed on the pipeline bottom plate by bolt.

[0011] Further, the buffer pad is provided with a bolt mounting portion on the side, the bolt mounting portion is provided with a mounting hole capable of mounting the bolt, and the pipeline bottom plate is provided with a threaded hole for mounting the bolt.

[0012] Further, the pump shell pipeline is a cylindrical pipeline, and the bottom surface of the buffer pad is an arc surface matched with the inner wall of the pump shell pipeline.

[0013] Compared with the prior art, the novel steam pipeline buffer device has the following advantages:

[0014] The novel steam pipeline buffer device has the following advantages:

[0015] Based on the above reasons, the novel steam pipeline buffer device can be widely popularized in the field of metallurgical equipment vacuum pumps. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Figure 1 It is a schematic diagram of steam flow direction in the pump shell pipeline.

[0018] Figure 2 It is a schematic diagram of the installation position of the buffer device in the pump shell pipeline.

[0019] Figure 3 It is a schematic diagram of the buffer pad structure.

[0020] Figure 4 It is a schematic diagram of the buffer pad combination state.

[0021] In the figure: 1, pump shell pipeline; 2, condenser; 3, pipeline bottom plate; 4, buffer pad. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative, and is by no means intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0025] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the embodiments are not intended to limit the scope of the present application unless specifically stated otherwise. It should be clear that the sizes of the various portions shown in the drawings are not drawn to scale for ease of description. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the authorized description where appropriate. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as limiting. Thus, other examples of exemplary embodiments can have different values. It should be noted that like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0027] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0029] Example 1

[0030] like Figures 2-4 As shown, this utility model provides a novel steam pipeline buffer device, installed in the pump casing pipe 1 between the vacuum pump and the condenser 2. The pump casing pipe 1 includes an inclined section and a horizontal section located at the bottom of the inclined section. The buffer device includes several buffer pads 4 laid on the bottom plate 3 of the horizontal section. The upper surface of the buffer pads 4 is inclined. The steam ejected by the vacuum pump can be ejected onto the inclined surface of the buffer pads 4 after passing through the inclined section of the pump casing pipe 1. The steam flow is reflected on the inclined surface and then enters the condenser 2 for condensation. The inclined surface is used to reduce the incident angle of the steam flow and reduce the scouring of the bottom plate 3 of the pipe.

[0031] Furthermore, when the buffer pad 4 is installed on the pipe base plate 3, the apex of the inclined surface faces the side where the condenser 2 is located.

[0032] Furthermore, several of the buffer pads 4 on the bottom plate 3 of the pipe are arranged in a matrix-like close arrangement.

[0033] Furthermore, the buffer pad 4 has a length of 250mm and a width of 200mm.

[0034] Preferably, for the pump casing pipe 1 with a diameter of 1.2m, 3*3 buffer pads 4 are tightly installed in a matrix on the pipe base plate 3, forming a buffer floor with a length of 750mm and a width of 600mm.

[0035] Further, the slope angle of the slope of the buffer pad 4 is 15-25°; the included angle between the inclined direction of the inclined section (i.e. the steam flow direction in the pump shell pipeline 1) and the slope of the buffer pad 4 is 115-125°.

[0036] Further, the buffer pad 4 is detachably installed on the pipeline bottom plate 3 through bolts, and is convenient to disassemble and assemble.

[0037] Further, the buffer pad 4 is provided with a bolt mounting portion on the side surface, the bolt mounting portion is provided with a mounting hole capable of mounting the bolt, the pipeline bottom plate 3 is provided with a threaded hole for mounting the bolt, and the buffer pad 4 can be installed on the pipeline bottom plate 3 through cooperation of the mounting hole and the threaded hole through the bolt.

[0038] Further, the pump shell pipeline 1 is a cylindrical pipeline, and the bottom surface of the buffer pad 4 is an arc surface matched with the inner wall of the pump shell pipeline 1.

[0039] Further, the buffer device can be arranged according to the position on the pipeline bottom plate 3 which is easily subjected to steam flow scouring and gas leakage found in the use of the vacuum pump.

[0040] For the vacuum pump without the buffer device, steam in the vacuum pump is sprayed from top to bottom along the inclined section of the pump shell pipeline 1 (from the upper left to the lower right), Figure 1 and directly scours the pipeline bottom plate 3 and enters the condenser 2 tank for water mist cooling after reflection; Figure 1 ABDE represent different steam flow intensities in the inclined section of the pump shell pipeline 1, wherein the steam flow at the C position (i.e. the pipeline center) is the most intense, which is usually called the main flow, and the other ABDE are auxiliary flows. Since the incident angle of the steam flow sprayed on the pipeline bottom plate 3 is relatively large, according to the order of the ABCDE steam flow, the reflection of the previous part of the steam on the pipeline bottom plate 3 will affect the reflection of the subsequent steam, and since the main flow has the largest flow intensity, the steam impact intensity on the side of the pipeline bottom plate 3 close to the condenser 2 (the positions corresponding to the reflected flows G and H in the Figure 1 ) is larger, and it is more likely to be leaked, resulting in gas leakage;

[0041] When the several buffer pads 4 are laid on the pipeline bottom plate 3, the auxiliary flow steam A is sprayed on the inclined surface of the buffer pad 4, and the incidence angle is reduced, so that the steam rebound height is higher, the steam direction of the auxiliary flow B is changed after the F point is hit, and the steam is rebounded to the G position after impacting the buffer pad downward, the main flow steam C is hit, the main flow steam C is changed in direction and reflected to the H point at the buffer pad, so that the steam ejection angle and height are increased through the buffer pad 4, so that the steam scouring of the pipeline bottom plate 3 is relieved to the greatest extent, which is equivalent to adding a buffer air cushion on the pipeline bottom plate 3, and the pipeline bottom plate 3 is better protected, and meanwhile, the multiple buffer pads 4 are separately installed, so that the replacement is more convenient and fast.

[0042] The buffer device is installed at the inflection point of the vacuum pump pipeline, so that the steam scouring can be reflected through the buffer pad to relieve the scouring intensity, so that the pipeline is more wear-resistant, and through comparison of the service life of the pump shell pipeline of the vacuum pump without the buffer device and the vacuum pump with the buffer device, the service life of the pump shell pipeline of the vacuum pump without the buffer device is usually about half a year, and the service life of the pump shell pipeline of the vacuum pump with the buffer device can be more than one year, and the protection effect of the pipeline is remarkable.

[0043] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the utility model embodiments.

Claims

1. A novel steam pipe snubber device, characterized by, The buffer device is installed in the pump shell pipeline between the vacuum pump and the condenser, and comprises a plurality of buffer pads laid on the pipeline bottom plate at the bottom of the horizontal section of the inclined section; the upper surface of the buffer pad is an inclined surface; the steam ejected by the vacuum pump can be sprayed onto the inclined surface of the buffer pad after passing through the inclined section of the pump shell pipeline; and the inclined surface is used to reduce the incident angle of the steam flow.

2. The novel steam pipe snubber device of claim 1, wherein, When the buffer pad is installed on the pipeline bottom plate, the vertex of the inclined surface is directed to the side where the condenser is located.

3. The novel steam pipe snubber device of claim 1, wherein, The plurality of buffer pads on the pipeline bottom plate are closely arranged in a matrix.

4. The novel steam pipe snubber device of claim 1, wherein, The length of the buffer pad is 250 mm, and the width is 200 mm.

5. The novel steam pipe snubber device of claim 1, wherein, The inclined angle of the inclined surface of the buffer pad is 15-25°; the included angle between the inclined direction of the inclined section and the inclined surface of the buffer pad is 115-125°. The direction of the steam flow, i.e. the included angle between the pump shell pipeline and the plane of the buffer pad, is kept between 115-125°.

6. The novel steam pipe snubber device of claim 1, wherein, The buffer pad is detachably installed on the pipeline bottom plate by bolts.

7. The novel steam pipe snubber device of claim 6, wherein, The side surface of the buffer pad is provided with a bolt mounting portion provided with a mounting hole capable of mounting the bolt; and the pipeline bottom plate is provided with a threaded hole for mounting the bolt.

8. The novel steam pipe snubber device of claim 1, wherein, The pump shell pipeline is a cylindrical pipeline, and the bottom surface of the buffer pad is an arc surface matched with the inner wall of the pump shell pipeline.

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