Novel high-erosion-resistance black water angle valve extension section

Abstract

The novel high-erosion-resistance black water angle valve extension section comprises a connecting pipe, the two ends of the connecting pipe are open and are an inlet and an outlet respectively, the inner wall of the connecting pipe is fixedly connected with a main lining, the inner wall of one end of the inlet is fixedly connected with a conical lining, and the inner wall of the other end of the inlet is fixedly connected with a water inlet. The connecting pipe is integrally lined with the main lining and the conical lining which are made of the sintered tungsten carbide material, the main lining and the conical lining are of an integrated structure, a whole flow channel is free of dead corners, the situation that the whole extension section is scrapped due to local erosion damage of the extension section is avoided, it is guaranteed that the lining has stable abrasion resistance, the service life of the extension section is prolonged, and the service life of the extension section is prolonged. A medium enters the connecting pipe through the inlet and is discharged from the outlet, the medium which is throttled and decompressed by the black water angle valve is diffused and buffered in the extension section, and the inner side of the inlet is conical, so that the flow rate of the medium is further reduced, the medium is rectified in the extension section, the flow is gradually stable, and the generation of turbulent flow and vortex is reduced; therefore, the erosion of the medium to the pipeline behind the valve is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to black water angle valve extension section technical field, concretely is a new type high erosion resistance black water angle valve extension section. BACKGROUND

[0002] Black water angle valve outlet extension section, for coal chemical industry, facilitate change medium flow, reduce medium flow rate, prevent valve after pipeline scour, leakage, and further cause gasification furnace load reduction or parking.

[0003] At present, the wear layer of the extension section liner in the industry mainly has two kinds: one, using local spraying tungsten carbide process, the cost is lower, but is limited by spraying process, the thickness of the sprayed tungsten carbide is only about 0.3mm, is not resistant to erosion, and the service life is relatively short;Two, local lining sintered tungsten carbide process, due to the influence of valve opening, medium before and after pressure difference and other factors, the extension section full flow channel all exists erosion problem, the extension section of local lining sintered tungsten carbide has poor adaptability, and the service life is short. UTILITY MODEL CONTENTS

[0004] The utility model discloses a new type high erosion resistance black water angle valve extension section, has the characteristics that lining full flow channel is without dead angle, reduces the extension section partial erosion damage and leads to the whole extension section scrap situation to occur, guarantees that lining has relatively stable wear resistance, and then increases the service life of extension section.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a new type high erosion resistance black water angle valve extension section, including the connecting pipe, the both ends of the connecting pipe are open and are respectively import and export, the inner wall of the connecting pipe is fixedly connected with main bushing, the inner wall of the one end of import is fixedly connected with conical bushing.

[0006] In order to avoid the appearance of bushing dead angle, as a new type high erosion resistance black water angle valve extension section of the utility model is preferred, the main bushing and conical bushing are one-piece structure.

[0007] In order to improve wear resistance and prolong service life, as a new type high erosion resistance black water angle valve extension section of the utility model is preferred, the main bushing and conical bushing are all sintered tungsten carbide material.

[0008] In order to facilitate connection and installation, as a new type high erosion resistance black water angle valve extension section of the utility model is preferred, the outer wall of the connecting pipe is fixedly connected with the connecting flange on one end close to the export, and the outer wall of the connecting pipe is fixedly connected with the special-shaped flange on one end close to the export.

[0009] Compared with the prior art, the utility model has the advantages as follows:

[0010] The main bushing and the conical bushing are integrally connected with the connecting pipe, and the main bushing and the conical bushing are of an integrated structure, and the whole flow channel is free of dead angle, so that local erosion damage of the extension section is avoided, the whole extension section is prevented from being scrapped, the lining has relatively stable wear resistance, and the service life of the extension section is prolonged.

[0011] The medium enters the connecting pipe through the inlet, is discharged from the outlet, is diffused and buffered in the extension section after throttling and pressure reduction of the black water angle valve, the conical design of the inner side of the inlet further reduces the flow rate of the medium, the medium is rectified in the extension section, the flow gradually becomes stable, the generation of turbulent flow and vortex flow is reduced, and the erosion of the medium to the pipeline behind the valve is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a whole sectional view structure of the utility model;

[0013] Fig. 2 It is a whole external structure view of the utility model.

[0014] In the drawing: 1, connecting pipe; 2, outlet; 3, inlet; 4, main bushing; 5, conical bushing; 6, connecting flange; 7, special-shaped flange. DETAILED DESCRIPTION

[0015] Please refer to Figs. 1-2 A novel high-erosion-resistance black water angle valve extension section, which comprises a connecting pipe 1, the two ends of the connecting pipe 1 are open and are respectively an inlet 3 and an outlet 2, the inner wall of the connecting pipe 1 is fixedly connected with a main bushing 4, and the inner wall of one end of the inlet 3 is fixedly connected with a conical bushing 5.

[0016] In the embodiment: the main bushing 4 and the conical bushing 5 are integrally connected with the connecting pipe 1 and are of an integrated structure, the whole flow channel is free of dead angle, local erosion damage of the extension section is avoided, the whole extension section is prevented from being scrapped, the lining has relatively stable wear resistance, and the service life of the extension section is prolonged;

[0017] The medium enters the connecting pipe 1 through the inlet 3, is discharged from the outlet 2, is diffused and buffered in the extension section after throttling and pressure reduction of the black water angle valve, the conical design of the inner side of the inlet 3 further reduces the flow rate of the medium, the medium is rectified in the extension section, the flow gradually becomes stable, the generation of turbulent flow and vortex flow is reduced, and the erosion of the medium to the pipeline behind the valve is reduced.

[0018] As a technical optimization scheme of the utility model, the main bushing 4 and the conical bushing 5 are of an integrated structure.

[0019] In the embodiment: the main bushing 4 and the conical bushing 5 are of an integrated structure, the whole flow channel is free of dead angle, and local erosion damage of the extension section is avoided, so that the whole extension section is prevented from being scrapped.

[0020] As a technical optimization scheme of the utility model, the main bushing 4 and the conical bushing 5 are both of sintered tungsten carbide material.

[0021] In the embodiment, the main bushing 4 and the conical bushing 5 are both of sintered tungsten carbide material, which has good wear resistance and impact resistance, avoids local erosion damage of the extension section, and causes the entire extension section to be scrapped.

[0022] As a technical optimization scheme of the utility model, the outer wall of the connecting pipe 1 is fixedly connected with a connecting flange 6 at one end close to the outlet 2, and is fixedly connected with a special-shaped flange 7 at one end close to the inlet 3.

[0023] In the embodiment, the special-shaped flange 7 is convenient for connecting the connecting pipe 1 and the black water angle valve, and the connecting flange 6 is convenient for connecting with the medium pipeline.

[0024] Working principle: the main bushing 4 and the conical bushing 5 of sintered tungsten carbide material are used for the whole inner lining of the connecting pipe 1, the main bushing 4 and the conical bushing 5 are of integrated structure, there is no dead angle in the full flow channel, local erosion damage of the extension section is avoided, the entire extension section is scrapped, the inner lining has relatively stable wear resistance, and the service life of the extension section is increased.

[0025] The medium enters the connecting pipe 1 through the inlet 3, is discharged from the outlet 2, is diffused and buffered in the extension section after throttling and pressure reduction of the black water angle valve, the conical design of the inner side of the inlet 3 further reduces the flow rate of the medium, the medium is rectified in the extension section, the flow gradually becomes stable, the generation of turbulent flow and vortex flow is reduced, and the erosion of the medium to the pipeline after the valve is reduced.

[0026] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A new type of high erosion resistant black water angle valve extension section comprising a connecting pipe (1), characterized in that: The connecting pipe (1) is open at both ends and is respectively an inlet (3) and an outlet (2), the inner wall of the connecting pipe (1) is fixedly connected with a main bushing (4), the inner wall of one end of the inlet (3) is fixedly connected with a conical bushing (5), the main bushing (4) and the conical bushing (5) are an integral structure, and the main bushing (4) and the conical bushing (5) are both made of sintered tungsten carbide.

2. A new type of high erosion resistant black water angle valve extension segment according to claim 1 characterized by: The outer wall of one end of the connecting pipe (1) close to the outlet (2) is fixedly connected with a connecting flange (6), and the outer wall of one end of the connecting pipe (1) close to the inlet (3) is fixedly connected with a special-shaped flange (7).

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