Flange plate with blowdown holes

Abstract

The flange plate comprises two flange panels and a gasket assembly, a plurality of mounting holes are formed in the two flange panels, the gasket assembly comprises a rubber outer lining, a stainless steel inner lining and a blow-off pipe, a plurality of positioning holes are formed in the rubber outer lining, bolts can penetrate through the positioning holes in a matched mode, and the blow-off pipe is connected with the stainless steel inner lining. The stainless steel inner lining is concentrically embedded in the rubber outer lining, the blow-off pipe penetrates through the bottom of the rubber outer lining in the vertical direction, and a first ball valve is assembled at the bottom end of the blow-off pipe. According to the flange plate with the blow-off hole, the blow-off pipe is arranged in the gasket assembly, the first ball valve is assembled, an external blow-off valve does not need to be additionally installed, the problem that the installation space of the external blow-off valve is limited is solved, the leakage risk is reduced, meanwhile, blow-off maintenance can be carried out without disassembly and assembly, and the cost is reduced. And the possibility of sealing surface abrasion and shutdown loss caused by frequent disassembly and cleaning of a traditional flange plate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange disc technical field especially a flange disc with blowdown hole. BACKGROUND

[0002] In many industrial fields such as petroleum chemical industry, food processing, the conveying of viscous medium (such as petroleum, slurry etc.) is very common, and the traditional flange disc as the key component of pipeline connection plays an important role in conveying such viscous medium, because the flowability of viscous medium is poor, in the pipeline conveying process, the impurities in the medium are easy to gradually deposit at the low point of the pipeline, with the continuous accumulation of the deposits, not only the normal flow of the medium in the pipeline is affected, the conveying efficiency is reduced, but also serious problems such as pipeline blockage are caused, and then the stable operation of the whole production process is affected.

[0003] In the process of realizing the present application, the inventor found that at least the following problems exist in the prior art:

[0004] At present, the impurity deposition problem is solved by relying on external blowdown valve, but the installation of external blowdown valve needs additional space, and in many space-limited pipeline systems, it is difficult to find a suitable position for installation, which greatly limits its application range, and moreover, there is a leakage risk at the connection between the external blowdown valve and the pipeline, once the leakage occurs, not only the medium is wasted, but also the environment is polluted, and even safety accidents are caused, in addition, in the process of frequent disassembly and cleaning of impurity deposition, the sealing surface of the traditional flange disc is worn due to the continuous disassembly and installation, which leads to the decline of sealing performance, and then the leakage problem is caused, at the same time, the shutdown cleaning also causes the interruption of production, brings shutdown loss, and affects the production efficiency and economic benefit of enterprises.

[0005] Therefore, the above technical problems need to be solved. CONTENT OF THE UTILITY MODEL

[0006] In order to overcome the defects of the prior art, the utility model provides a flange disc with blowdown hole, which solves the problems in the background art.

[0007] In order to solve the above technical problems, the basic technical scheme of the utility model is as follows:

[0008] A flange disc with blowdown hole, comprising two symmetrical flange panels and a gasket assembly coaxially arranged between the two flange panels, a plurality of installation holes in annular array distribution and capable of being penetrated by bolts are formed in the two flange panels,

[0009] The gasket assembly comprises a rubber outer gasket, a stainless steel inner gasket and a blowdown pipe, a plurality of positioning holes for bolts to pass through are formed in the rubber outer gasket, and the plurality of positioning holes correspond to a plurality of mounting holes one by one, the stainless steel inner gasket is concentrically embedded in the rubber outer gasket, the blowdown pipe penetrates the bottom of the rubber outer gasket in the vertical direction, the top end of the blowdown pipe is screwed to the bottom of the stainless steel inner gasket and is in communication with the inner side of the stainless steel inner gasket, and the bottom end of the blowdown pipe is provided with a first ball valve.

[0010] Preferably, a flushing pipe penetrating the top of the rubber outer gasket in the vertical direction is further arranged, the bottom end of the flushing pipe is screwed to the top of the stainless steel inner gasket and is in communication with the inner side of the stainless steel inner gasket, and the top end of the flushing pipe is provided with a second ball valve, wherein when necessary, the second ball valve is opened, and flushing medium can be injected into the pipeline through the flushing pipe to assist in cleaning impurities in the pipeline and ensure the smoothness of the pipeline.

[0011] Preferably, concentric circular lines are arranged on the two side surfaces of the rubber outer gasket, wherein the concentric circular lines can help to enhance the sealing effect between the gasket assembly and the flange panel and prevent medium leakage.

[0012] Preferably, a groove pattern is arranged on the outer wall of the stainless steel inner gasket, and a protrusion pattern matched with the groove pattern is arranged on the inner wall of the rubber outer gasket, wherein the groove pattern on the outer wall of the stainless steel inner gasket is matched with the protrusion pattern on the inner wall of the rubber outer gasket, so that the sealing performance is further improved, and leakage of the medium from the inside of the gasket assembly is prevented.

[0013] The beneficial effects of the utility model are as follows:

[0014] The technical scheme of the utility model discloses a blowdown pipe arranged in the gasket assembly and provided with a first ball valve, so that an external blowdown valve does not need to be additionally installed, the problem that the installation space of the external blowdown valve is limited is avoided, the leakage risk is reduced, meanwhile, blowdown maintenance can be carried out without disassembly and assembly, the possibility that the sealing surface is abraded and the loss caused by shutdown due to the frequent disassembly and cleaning of the traditional flange plate is reduced, the normal flow of the medium in the pipeline is ensured, the conveying efficiency is improved, the production interruption is reduced, and the production efficiency and economic benefits of the enterprise are improved. ACCURACY OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a split structural schematic view of the utility model;

[0017] Figure 3 It is a structural schematic view of the gasket assembly of the utility model;

[0018] Figure 4 It is a structural schematic view of the stainless steel inner gasket of the utility model;

[0019] BRIEF DESCRIPTION OF DRAWINGS

[0020] 100, flange panel;

[0021] 110, mounting hole;

[0022] 200, gasket assembly;

[0023] 210, rubber outer liner; 220, stainless steel inner liner; 230, blowdown pipe; 240, flush pipe;

[0024] 2110, positioning hole; 2120, concentric circular groove; 2130, raised groove;

[0025] 2210, recessed groove;

[0026] 2310, first ball valve;

[0027] 2410, second ball valve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-4 The present application provides a technical solution: a flange plate with a blowdown hole, comprising two symmetrically distributed flange panels 100 and a gasket assembly 200 coaxially arranged between the two flange panels 100. Each of the two flange panels 100 is provided with a plurality of mounting holes 110 arranged in a ring array and adapted for bolts to pass through. The gasket assembly 200 comprises a rubber outer liner 210, a stainless steel inner liner 220 and a blowdown pipe 230. The rubber outer liner 210 is provided with a plurality of positioning holes 2110 adapted for bolts to pass through. Each of the positioning holes 2110 corresponds to one of the mounting holes 110. The stainless steel inner liner 220 is coaxially embedded in the rubber outer liner 210. The blowdown pipe 230 penetrates the bottom of the rubber outer liner 210 in the vertical direction. The top end of the blowdown pipe 230 is threadedly installed at the bottom of the stainless steel inner liner 220 and is in communication with the inner side of the stainless steel inner liner 220. The bottom end of the blowdown pipe 230 is provided with a first ball valve 2310.

[0030] Based on the structure of the above setting, the flange plate with a pollution hole is composed of a gasket assembly 200 and two flange panels 100, wherein the flange panel 100 serves as the main connecting component of the flange plate and is symmetrically distributed, a plurality of mounting holes 110 arranged in a ring array are provided on the flange panel 100 for the penetration of bolts, the two flange panels 100 are tightly connected together by bolts to realize reliable communication of the pipeline, ensure normal conveying of the medium, and the gasket assembly 200 is coaxially arranged between the two flange panels 100 to play a sealing and supporting role. In the gasket assembly 200, the rubber outer liner 210 has good elasticity and sealing property, the positioning holes 2110 provided on the rubber outer liner 210 correspond to the mounting holes 110 on the flange panel 100 one by one, facilitating the penetration of the bolts and ensuring the tight connection between the flange panel 100 and the gasket assembly 200. The stainless steel inner liner 220 is concentrically embedded in the rubber outer liner 210, which enhances the overall strength and stability of the gasket assembly 200 and can withstand the pressure and impact of the medium in the pipeline. The blowdown pipe 230 provides a channel for impurity discharge. When it is necessary to discharge impurities, the first ball valve 2310 is opened, and the impurities can be discharged through the blowdown pipe 230, avoiding the problems of limited installation space and leakage risk of the external blowdown valve. Specifically, the flange plate with a pollution hole realizes the function of impurity discharge without the need for additional installation of an external blowdown valve by arranging the blowdown pipe 230 in the gasket assembly 200. During the conveying of viscous medium in the pipeline, the impurities in the medium will gradually deposit at the low point of the pipeline. The blowdown pipe 230 of the flange plate is located at the bottom of the gasket assembly 200 and is connected to the inside of the stainless steel inner liner 220. When it is necessary to discharge impurities, the first ball valve 2310 assembled at the bottom end of the blowdown pipe 230 is only needed to be opened, and the deposited impurities can be discharged through the blowdown pipe 230, avoiding the problems of impurity accumulation affecting the normal flow of the medium in the pipeline and the conveying efficiency, and causing pipeline blockage. The flange plate with a pollution hole, by arranging the blowdown pipe 230 in the gasket assembly 200 and assembling the first ball valve 2310, does not need to additionally install an external blowdown valve, avoiding the problem of limited installation space of the external blowdown valve, reducing the risk of leakage, and at the same time, without the need for disassembly, the blowdown maintenance can be carried out, reducing the possibility of sealing surface wear and loss caused by frequent disassembly and cleaning of the traditional flange plate, thereby ensuring the normal flow of the medium in the pipeline, improving the conveying efficiency, reducing the production interruption, and improving the production efficiency and economic benefit of the enterprise.

[0031] Further, a flushing pipe 240 penetrating the top of the rubber outer liner 210 in the vertical direction is further included, the bottom end of the flushing pipe 240 is threadedly installed at the top of the stainless steel inner liner 220 and connected to the inside of the stainless steel inner liner 220, and the top end of the flushing pipe 240 is assembled with a second ball valve 2410.

[0032] Further, concentric circular lines 2120 are arranged on both sides of the rubber outer liner 210.

[0033] Further, the outer wall of the stainless steel lining 220 is provided with groove patterns 2210, and the inner wall of the rubber outer lining 210 is provided with convex patterns 2130 matched with the groove patterns 2210.

[0034] According to the disclosure and teaching of the above description, the skilled in the art of the present application can also change and modify the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. A flange plate with a drain hole, comprising two symmetrical flange panels (100) and a gasket assembly (200) coaxially arranged between the two flange panels, a plurality of mounting holes (110) for bolts are arranged on each of the two flange panels (100) in a ring array. characterized in that The gasket assembly (200) comprises a rubber outer gasket (210), a stainless steel inner gasket (220) and a drain pipe (230), a plurality of positioning holes (2110) for bolts are arranged on the rubber outer gasket (210), and each of the positioning holes (2110) corresponds to one of the mounting holes (110), the stainless steel inner gasket (220) is concentrically arranged in the rubber outer gasket (210), the drain pipe (230) penetrates the bottom of the rubber outer gasket (210) in the vertical direction, the top end of the drain pipe (230) is threadedly connected to the bottom of the stainless steel inner gasket (220) and communicates with the inner side of the stainless steel inner gasket (220), and the bottom end of the drain pipe (230) is provided with a first ball valve (2310).

2. A flange plate with a drain hole according to claim 1, characterized in that: The gasket assembly (200) further comprises a flushing pipe (240) penetrating the top of the rubber outer gasket (210) in the vertical direction, the bottom end of the flushing pipe (240) is threadedly connected to the top of the stainless steel inner gasket (220) and communicates with the inner side of the stainless steel inner gasket (220), and the top end of the flushing pipe (240) is provided with a second ball valve (2410).

3. The flange plate with drain hole according to claim 1, characterized in that: The rubber outer gasket (210) is provided with concentric circular lines (2120) on both sides.

4. The flange plate with drain hole according to claim 1, characterized in that: The outer wall of the stainless steel inner gasket (220) is provided with a groove pattern (2210), and the inner wall of the rubber outer gasket (210) is provided with a protruding pattern (2130) matched with the groove pattern (2210).

Images