Stainless steel flange capable of effectively improving sealing performance

Abstract

The utility model relates to a stainless steel flange capable of effectively improving sealing performance, which comprises a flange body, and the flange body comprises a flange sheet and a connecting sleeve. The flange piece and the connecting sleeve are of an integrally-formed structure and share the same axis. A plurality of connecting through holes are formed in the binding face of the flange piece in an annular array mode, annular mounting grooves are formed in the positions, located on the outer sides and the inner sides of the connecting through holes, of the binding face of the flange piece, and a sealing ring is placed on each annular mounting groove; the connecting sleeve is of a trumpet-shaped structure, the connecting position of the connecting sleeve and the flange piece is a large end, the small end of the connecting sleeve extends upwards to form a barrel-shaped connecting part, and a groove is formed in the outer side of the end of the barrel-shaped connecting part. Multiple sealing is adopted, and the sealing performance of the stainless steel flange is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of metal products technology, and in particular to a stainless steel flange that effectively improves sealing performance. Background Technology

[0002] A stainless steel flange is a component used for pipe connections; it is a flange plate made of stainless steel. A flange is a disc-shaped part, and in piping engineering, it is an important connection method. It connects two pipe sections with bolts, allowing the pipes to be tightly connected. The main body of a stainless steel flange is a circular disc with holes for installing bolts. Its end faces typically have sealing surfaces, such as flat faces, raised faces, and tongue and groove faces, used to mate with pipes or other flanges to achieve a sealing function. Stainless steel flanges are highly corrosion-resistant, have high strength and toughness, a wide temperature adaptability range, and are reusable.

[0003] Currently, stainless steel flanges on the market typically use a sealing ring after connecting to pipes. When the sealing ring breaks, the sealing performance of the flange is greatly affected, requiring manual disassembly and replacement of the sealing ring, which is time-consuming and labor-intensive.

[0004] Therefore, it is necessary to develop a stainless steel flange that can effectively improve sealing performance in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a stainless steel flange that effectively improves sealing performance by employing multiple seals.

[0006] To achieve the above-mentioned utility model objectives, a stainless steel flange that effectively improves sealing performance is provided, comprising a flange body, wherein the flange body includes a flange plate and a connecting sleeve;

[0007] The flange and the connecting sleeve are integrally formed and share the same axis;

[0008] The flange has a number of connecting through holes arranged in a ring array on its mating surface. The flange has annular mounting grooves on both the outer and inner sides of the connecting through holes, and a sealing ring is placed on each of the annular mounting grooves.

[0009] The connecting sleeve has a trumpet-shaped structure, with the large end connecting to the flange plate. The small end of the connecting sleeve extends upward to form a cylindrical connecting part, and the outer side of the end of the cylindrical connecting part is provided with a bevel.

[0010] Specifically, there is one annular mounting groove on the outside of the connecting through hole and two annular mounting grooves on the inside of the connecting through hole.

[0011] Furthermore, the lower surface of the sealing ring is provided with a plurality of positioning protrusions, and each of the annular mounting grooves is provided with a plurality of positioning grooves. In the annular mounting groove corresponding to the sealing ring, the positioning grooves correspond one-to-one with the positioning protrusions.

[0012] Preferably, the inner end of the mating surface of the flange is recessed inward to form an annular step portion, and a filter screen is detachably fixed on the annular step portion.

[0013] Furthermore, the filter screen has a frame at its edge, and fixing bolts are evenly distributed on the frame. The filter screen is fixed to the annular step portion by the fixing bolts on the frame.

[0014] The filter screen has a curved structure.

[0015] Preferably, both ends of the stainless steel flange are fitted with plastic dust covers.

[0016] This utility model provides a stainless steel flange that effectively improves sealing performance, which has the following advantages compared to existing technologies:

[0017] (1) Both the inner and outer sides of the connection through hole of the stainless steel flange are provided with annular mounting grooves, and each annular mounting groove is provided with a sealing ring, providing multiple seals and effectively improving the sealing effect of the stainless steel flange.

[0018] (2) Simple structure and easy to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the flange body in this embodiment. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the flange body in this embodiment. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the flange body after the sealing ring is installed in this embodiment;

[0022] Figure 4 This is a schematic diagram of the sealing ring in this embodiment;

[0023] Figure 5 This is a schematic diagram of the structure of a stainless steel flange that effectively improves sealing performance according to this embodiment;

[0024] Figure 6 This is a schematic diagram of the filter screen in this embodiment;

[0025] Figure 7 This is a schematic diagram of the stainless steel flange after the plastic dust cover is fitted in this embodiment. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 The stainless steel flange of this embodiment, which effectively improves sealing performance, includes a flange body, which includes a flange plate 1 and a connecting sleeve 2; the flange plate 1 and the connecting sleeve 2 are integrally formed and share the same axis.

[0028] like Figure 2 As shown, the mating surface of the flange 1 has a plurality of connecting through holes 3 arranged in a ring array. Annular mounting grooves 4 are provided on both the outer and inner sides of the connecting through holes 3 on the mating surface of the flange 1. A sealing ring 5 is placed on each of the annular mounting grooves 4. Figure 3 As shown. After the stainless steel flange is installed, bolts are inserted into the connecting through hole 3 to achieve connection. Sealing rings 5 ​​are provided on both the inner and outer sides of the bolts, providing a multiple sealing effect.

[0029] Specifically, in this embodiment, there is one annular mounting groove located on the outside of the connecting through hole 3, and two annular mounting grooves located on the inside of the connecting through hole 3.

[0030] In this embodiment, as Figure 4 As shown, the lower surface of the sealing ring 5 is provided with a plurality of positioning protrusions 6, and each of the annular mounting grooves 4 is provided with a plurality of positioning grooves (not shown in the figure). In the annular mounting groove 4 corresponding to the sealing ring 5, the positioning grooves correspond one-to-one with the positioning protrusions 6. This arrangement facilitates quick installation and positioning of the sealing ring 5, and prevents it from sliding during installation, which would affect the sealing performance.

[0031] like Figure 1 As shown, the connecting sleeve 2 has a trumpet-shaped structure, and the connection with the flange 1 is the large end. The small end of the connecting sleeve 2 extends upward to form a cylindrical connecting part 7. The outer side of the end of the cylindrical connecting part 7 is provided with a bevel 8 to facilitate welding with external pipes.

[0032] The above-mentioned design, with its flared structure, effectively improves the strength of the connecting sleeve on the one hand, and ensures the efficiency of medium flow inside the pipeline on the other hand, reducing the risk of blockage.

[0033] In this embodiment, as Figure 3 As shown, the inner end of the mating surface of the flange 1 is recessed inward to form an annular step portion 9, and a filter screen 10 is detachably fixed on the annular step portion 9, such as... Figure 5 As shown, it plays a certain filtering role in the circulating medium.

[0034] Furthermore, in this embodiment, as Figure 6As shown, the filter screen 10 has a frame 11 at its edge, and fixing bolts 12 are evenly distributed on the frame 11. The filter screen 10 is fixed to the annular step portion 9 by the fixing bolts 12 on the frame. The filter screen 10 has a curved structure, which effectively increases the filtration area.

[0035] In this embodiment, as Figure 7 As shown, both ends of the stainless steel flange are fitted with plastic dust covers 13, which serve a certain dustproof function.

[0036] When installing the stainless steel flange, first fix the filter screen to the annular step with fixing bolts, then connect the bevel on the sleeve of the stainless steel flange to the external pipeline by welding, and finally connect the two flanges with bolts on the connecting through hole. After the stainless steel flange is installed, bolts are inserted into the connecting through hole to connect it. Sealing elements are provided on both the inner and outer sides of the bolts to achieve a multiple sealing effect.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A stainless steel flange that effectively improves sealing performance, characterized in that, Includes a flange body, which includes a flange plate and a connecting sleeve; The flange and the connecting sleeve are integrally formed and share the same axis; The flange has a number of connecting through holes arranged in a ring array on its mating surface. The flange has annular mounting grooves on both the outer and inner sides of the connecting through holes, and a sealing ring is placed on each of the annular mounting grooves. The connecting sleeve has a trumpet-shaped structure, with the large end connecting to the flange plate. The small end of the connecting sleeve extends upward to form a cylindrical connecting part, and the outer side of the end of the cylindrical connecting part is provided with a bevel.

2. The stainless steel flange for effectively improving sealing performance as described in claim 1, characterized in that, There is one annular mounting groove located on the outside of the connecting through hole, and two annular mounting grooves located on the inside of the connecting through hole.

3. The stainless steel flange for effectively improving sealing performance as described in claim 2, characterized in that, The lower surface of the sealing ring is provided with a plurality of positioning protrusions, and each of the annular mounting grooves is provided with a plurality of positioning grooves. In the annular mounting groove corresponding to the sealing ring, the positioning grooves correspond one-to-one with the positioning protrusions.

4. A stainless steel flange for effectively improving sealing performance as described in any one of claims 1 to 3, characterized in that, The inner end of the mating surface of the flange is recessed inward to form an annular step, and a filter screen is detachably fixed on the annular step.

5. A stainless steel flange for effectively improving sealing performance as described in claim 4, characterized in that, The filter screen has a frame at its edge, and fixing bolts are evenly distributed on the frame. The filter screen is fixed to the annular step portion by the fixing bolts on the frame. The filter screen has a curved structure.

6. A stainless steel flange for effectively improving sealing performance as described in claim 1, characterized in that, Both ends of the stainless steel flange are fitted with plastic dust covers.

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