CN220816893U - Multiple sealed flange connection structure - Google Patents
Multiple sealed flange connection structure Download PDFInfo
- Publication number
- CN220816893U CN220816893U CN202322485732.1U CN202322485732U CN220816893U CN 220816893 U CN220816893 U CN 220816893U CN 202322485732 U CN202322485732 U CN 202322485732U CN 220816893 U CN220816893 U CN 220816893U
- Authority
- CN
- China
- Prior art keywords
- flange
- sealing
- sealing gasket
- mounting hole
- seal
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052802 copper Inorganic materials 0.000 abstract description 10
- 239000010949 copper Substances 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000005219 brazing Methods 0.000 description 7
- 239000000945 filler Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Joints With Pressure Members (AREA)
Abstract
The utility model provides a multi-seal flange connection structure which comprises a first flange, a second flange, a sealing gasket, a sealing ring and a fastener. The intermediate position of first flange sets up annular spliced pole, and the outside of annular spliced pole is equipped with the sealing washer recess, and the embedded sealing washer that establishes of sealing washer recess forms radial seal. The inner side surface of the first flange is provided with a sealing gasket boss, a sealing gasket groove matched with the sealing gasket boss is arranged at the corresponding position of the second flange, and a sealing gasket is embedded in the sealing gasket groove to form axial sealing. The flange plate structure is adopted to carry out quick dismounting connection on the pipeline, axial sealing and radial sealing are carried out, and then the bolts and nuts are used for pressurizing and fastening to realize connection and sealing of the copper pipe, so that higher pressure bearing and adaptation to different refrigerant corrosion resistance are realized.
Description
Technical Field
The utility model relates to the technical field of flange forgings, in particular to a multi-seal flange connection structure.
Background
In the air conditioning system of the machine room, copper pipe connection is mainly composed of two types of brazing connection and mechanical connection. The brazing method is most commonly applied, namely, a copper pipe and a copper pipe fitting and copper-phosphorus brazing filler metal or tin brazing filler metal with a melting point lower than that of copper are heated together, under the condition that the copper pipe and the copper pipe fitting are not molten, the brazing filler metal is heated until the brazing filler metal is molten, then the molten brazing filler metal is filled into gaps of the copper pipe and the copper pipe fitting, and the gaps are formed by cooling and crystallizing to form a firm joint.
The mechanical connection generally adopts flange connection, and is used for a pipeline system with large pipe diameter and high pressure-bearing sealing requirement. When the machine room air conditioner placed side by side is installed in the data center, the air conditioner machine and the on-site pipeline are usually installed separately, namely the air conditioner machine is placed side by side, then the pipeline is welded and fixed on the construction site, then the main pipeline is connected with the machine, the temperature change in the air conditioner system is large, the pressure is high, and the refrigerant has certain corrosiveness, so that the requirement on the connecting structure is high.
Disclosure of utility model
The utility model provides a multi-seal flange connection structure which is used for solving the technical problems in the background technology.
The technical scheme adopted for solving the technical problems is as follows:
The multi-seal flange connection structure comprises a first flange, a second flange and a fastener; the first flange comprises an annular connecting column arranged in the middle of the first flange, and a plurality of first mounting holes penetrating through the first flange and positioned at the edge of the annular connecting column, a sealing ring groove is arranged on the outer side of the annular connecting column, and a sealing ring is embedded in the sealing ring groove; the second flange (2) comprises a connecting groove arranged in the middle of the second flange and a second mounting hole penetrating through the second flange and arranged opposite to the first mounting hole, and the fastener is inserted into the first mounting hole and the second mounting hole; sealing gasket bosses are arranged on the inner side surface of the first flange and between the annular connecting column and the first mounting hole, sealing gasket grooves matched with the sealing gasket bosses are arranged at corresponding positions of the second flange, and sealing gaskets are embedded in the sealing gasket grooves.
As a further preferred aspect of the present utility model, the seal ring is provided with at least two.
In a further preferred aspect of the present utility model, the gasket is made of hydrogenated nitrile rubber.
In a further preferred aspect of the present utility model, the gasket is made of polytetrafluoroethylene plastic.
As a further preferred aspect of the present utility model, the fastener includes a fastening bolt and a fastening nut; one end of the fastening bolt is fixed on the outer side of the first mounting hole, and the other end of the fastening bolt penetrates through the first mounting hole and the second mounting hole and is in threaded connection with the fastening nut.
In a further preferred aspect of the present utility model, the first flange and the second flange are made of carbon steel or stainless steel.
Compared with the prior art, the utility model has the following advantages or technical effects:
The inner side surface of the first flange is provided with a sealing gasket to form axial sealing, and the sealing gasket is made of polytetrafluoroethylene plastic and has high temperature resistance, corrosion resistance and excellent sealing property; the annular connecting column is provided with the plurality of sealing rings to form radial sealing, the sealing rings are made of hydrogenated nitrile rubber, and the sealing rings have good oil resistance, heat resistance, high pressure resistance and chemical corrosion resistance, and meanwhile, the sealing rings are in interference fit on the dimension design, so that the sealing effect is good. The utility model is more suitable for the air conditioning system of the machine room, adopts the flange plate structure to carry out quick dismounting connection of the pipelines, adopts the multiple sealing structure, and realizes connection and sealing of the copper pipe by pressing and fastening of bolts and nuts, thereby realizing higher bearing and adapting to the corrosion resistance of different refrigerants.
Drawings
The utility model and its features, aspects and advantages will become more apparent from the detailed description of non-limiting embodiments with reference to the following drawings. Like numbers refer to like parts throughout. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the utility model.
FIG. 1 is a cross-sectional view of a flange connection structure of the present utility model;
FIG. 2 is an exploded view of the flange connection of the present utility model;
FIG. 3 is a schematic view of the structure of the annular connecting column;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
In the figure, 1, a first flange, 11, an annular connecting column, 12, a first mounting hole, 13, a connecting surface, 14, a sealing groove, 15, a sealing gasket, 16, a sealing ring, 2, a second flange, 21, a connecting groove, 22, a second mounting hole, 3, a fastener, 31, a fastening bolt, 32 and a fastening nut.
Detailed Description
The following description of the technical solutions according to the embodiments of the present utility model refers to the accompanying drawings, which are included to illustrate only some embodiments of the utility model, and not all embodiments. Accordingly, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to fall within the scope of the present utility model.
Example 1:
Referring to fig. 1-2, the utility model provides a multi-seal flange connection structure, which is suitable for an air conditioning system of a machine room and comprises a first flange 1, a second flange 2 and a fastener 3. The first flange 1 comprises an annular connecting column 11 arranged at the middle position of the first flange 1, and a plurality of first mounting holes 12 penetrating through the first flange 1 and positioned at the edge of the annular connecting column 11, wherein a sealing ring groove is arranged on the outer side of the annular connecting column 11, and a sealing ring 16 is embedded in the sealing ring groove. The second flange 2 includes a connection groove 21 provided at a middle position of the second flange 2, and a second mounting hole 22 penetrating the second flange 2 and provided opposite to the first mounting hole 12, and the fastener 3 is inserted into the first and second mounting holes 12, 22. The inner side of the first flange 1 is in contact with the second flange 2, a connecting surface 13 is arranged on the connecting surface 13, a sealing gasket boss 14 is arranged between the annular connecting column 11 and the first mounting hole 12, a sealing gasket groove matched with the sealing gasket boss 14 is arranged at the corresponding position of the second flange 2, and a sealing gasket 15 is embedded in the sealing gasket groove.
Further, as shown in fig. 3-4, two seal ring grooves are formed on the annular connecting column 11 at intervals, and two seal rings 16 are fixed in the two seal ring grooves in an elastic sleeving manner to form radial seal. In this embodiment, the sealing ring 16 is made of hydrogenated nitrile rubber, and is in interference fit with the annular connecting column 11 in size design, so that the sealing effect is good and the sealing ring is resistant to environmental corrosion such as refrigerant. The size of the sealing gasket boss 14 is matched with the sealing gasket groove, the sealing gasket 15 is embedded in the sealing gasket groove and is fixed through the sealing gasket boss 14, and the structure can prevent the sealing gasket 15 from rotating or moving when two flanges are connected, so that the axial sealing of the flange connection structure is improved. The sealing gasket 15 is made of polytetrafluoroethylene plastic, has high temperature resistance, corrosion resistance and excellent sealing performance, and is more suitable for an air conditioning system.
Further illustratively, the fastener 3 includes a fastening bolt 31 and a fastening nut 32. One end of the fastening bolt 31 is fixed to the outside of the first mounting hole 12, and the other end passes through the first mounting hole 12, the second mounting hole 22, and is screwed with the fastening nut 32, thereby fixing the first flange 1 and the second flange 2. The external dimensions of the two flanges refer to the data of the pressure grade PN value corresponding to the national recommended standard GB/T9124 steel pipe flange, and carbon steel or stainless steel is selected as the material, so that the pressure strength is ensured, and meanwhile, corrosion and rust are prevented. When the structure is assembled and fastened, the sealing gasket 15 is placed in the sealing gasket groove, the sealing ring 16 is sleeved in the sealing ring groove at the outer side of the annular connecting column 11, lubricating oil is smeared on the annular connecting column 11 and the sealing ring 16, the two flanges are matched in a pressing mode, and finally the two flanges are fixed through the fastening piece.
Example 2:
A sealing groove 14 is further arranged on the connecting surface 13 and between the first mounting hole 12 and the outer edge of the first flange 1, a sealing gasket 15 is embedded in the sealing groove 14, and radial sealing of the flange connecting structure is further improved by adding the sealing gasket 15.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.
Claims (6)
1. The multi-seal flange connection structure is characterized by comprising a first flange (1), a second flange (2) and a fastener (3); the first flange (1) comprises an annular connecting column (11) arranged in the middle of the first flange (1), and a plurality of first mounting holes (12) penetrating through the first flange (1) and positioned at the edge of the annular connecting column (11), a sealing ring groove is formed in the outer side of the annular connecting column (11), and a sealing ring (16) is embedded in the sealing ring groove; the second flange (2) comprises a connecting groove (21) arranged in the middle of the second flange (2), and a second mounting hole (22) penetrating through the second flange (2) and arranged opposite to the first mounting hole (12), and the fastener (3) is inserted into the first mounting hole (12) and the second mounting hole (22);
Sealing gasket bosses (14) are arranged on the inner side surface of the first flange (1) and between the annular connecting column (11) and the first mounting hole (12), sealing gasket grooves matched with the sealing gasket bosses (14) are arranged at corresponding positions of the second flange (2), and sealing gaskets (15) are embedded in the sealing gasket grooves.
2. The multi-seal flange connection according to claim 1, characterized in that the sealing ring (16) is provided with at least two.
3. The multi-seal flange connection according to claim 2, characterized in that the sealing ring (16) is made of hydrogenated nitrile rubber.
4. The multi-seal flange connection according to claim 1, characterized in that the gasket (15) is made of polytetrafluoroethylene plastic.
5. The multi-seal flange connection according to claim 1, characterized in that the fastener (3) comprises a fastening bolt (31) and a fastening nut (32); one end of a fastening bolt (31) is fixed on the outer side of the first mounting hole (12), and the other end of the fastening bolt penetrates through the first mounting hole (12) and the second mounting hole (22) and is in threaded connection with a fastening nut (32).
6. The multi-seal flange connection structure according to claim 1, wherein the first flange (1) and the second flange (2) are made of carbon steel or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322485732.1U CN220816893U (en) | 2023-09-13 | 2023-09-13 | Multiple sealed flange connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322485732.1U CN220816893U (en) | 2023-09-13 | 2023-09-13 | Multiple sealed flange connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816893U true CN220816893U (en) | 2024-04-19 |
Family
ID=90708544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322485732.1U Active CN220816893U (en) | 2023-09-13 | 2023-09-13 | Multiple sealed flange connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816893U (en) |
-
2023
- 2023-09-13 CN CN202322485732.1U patent/CN220816893U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |