CN213809330U - Flange connection compensation device for town gas floor type pressure regulating cabinet - Google Patents
Flange connection compensation device for town gas floor type pressure regulating cabinet Download PDFInfo
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- CN213809330U CN213809330U CN202022941782.2U CN202022941782U CN213809330U CN 213809330 U CN213809330 U CN 213809330U CN 202022941782 U CN202022941782 U CN 202022941782U CN 213809330 U CN213809330 U CN 213809330U
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- flange
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Abstract
The utility model discloses a town gas console mode regulator cabinet flange joint compensation arrangement, import and export the ring flange on the pipeline including the regulator cabinet to and connect the fixing device of two ring flanges, compensating ring and seal ring set up between two ring flanges. The method is used for the condition that the flange type connecting pipeline generates axial displacement after being acted by external force, and the length compensation of the initial position (length distance) of the flange type connecting pipeline still cannot be recovered under the action of other external force. The utility model discloses installation operation plasticity is big, does not make any change to former facility equipment, and is easy and simple to handle, and the operation time limit for a project is short.
Description
Technical Field
The utility model relates to a flange joint technical field among the natural gas line specifically is a town gas console mode regulator cubicle flange joint compensation arrangement.
Background
The town gas floor type pressure regulating cabinet is widely applied as pressure regulating equipment of centrally developed commercial buildings and medium and large-scale industrial and commercial gas users. However, in the short time (short ten days and several years) after the installation, construction, acceptance and operation of the pressure regulating cabinet are carried out in a gas business enterprise, the settlement phenomenon of the inlet and outlet cabinet pipelines connected with the lower end of the pressure regulating equipment occurs, particularly, after a large foundation pit is excavated and backfilled during the capital construction, the backfilled soil is not tamped in a layering way, the compactness of the installed gas pipeline pipe base is not enough, the upper end of the pipeline is connected to the inlet and outlet section flange of the pressure regulating cabinet after a period of natural settlement, the upper end of the pipeline cannot sink along with the inlet and outlet section flange, the pipe base supporting the pipeline forms a gap, the load generated by the earthing on the pipe top is completely born by the pipeline, and therefore, a downward pulling force is formed at the inlet and outlet flanges of the pressure regulating cabinet. When the inspection personnel carries out work such as pressure regulating cabinet part dismouting, once the part that demolishs restores according to the original article under the effect of this pulling force, will take place the geometric dimensions difference of non-constant, when handling similar circumstances, usually adopt the method of thickening sealed pad to compensate now. However, when the geometric size difference exceeds the common sealing pad, the processing method generally adopts engineering construction means, namely, a pipeline at the inlet end or the outlet end is cut off, then a pipeline section with the same specification and model is adopted for welding to make up, and then a flange is connected. If the process is adopted for construction, the procedure of fire driving must be handled. And the construction time is relatively long, and the safety protection level is higher. Bringing great inconvenience to the construction.
Disclosure of Invention
The invention aims to provide a flange connection compensation device for a town gas floor type pressure regulating cabinet, which is used for facilitating the compensation connection of flanges by constructors when size difference occurs in flanges at an inlet and an outlet of the pressure regulating cabinet, reducing construction difficulty and improving efficiency.
In order to realize the purpose, the utility model discloses a technical scheme is: the pressure regulating cabinet flange connection compensation device comprises two flange plates on an inlet/outlet pipeline of the pressure regulating cabinet, a fixing device for connecting the two flange plates, a compensation ring and a sealing washer, wherein the compensation ring and the sealing washer are arranged between the two flange plates.
Further, the compensating ring is provided with a through hole, and the diameter of the through hole is the same as the inner diameter of the sealing washer matched with the flange plate.
Further, the outer diameter of the compensation ring is smaller than or equal to the diameter of a circle formed by the plurality of fixing devices.
Or, further, when the outer diameter of the compensation ring is larger than the diameter of a circle formed by the plurality of fixing devices, a limiting groove is formed in the compensation ring, and the fixing devices are arranged in the limiting groove during installation.
Furthermore, the number of the limiting grooves is the same as that of the fixing holes in the flange plate.
Technical scheme more than adopting, the utility model discloses following beneficial technological effect has: the utility model is suitable for a flange formula connecting tube takes place axial displacement after receiving exogenic action, and under other exogenic actions, still can not resume the condition of its length compensation of position (length interval) before beginning. The method has the characteristics of simple manufacturing process, easy processing and manufacturing, large plasticity of installation operation, no change to the original facilities and equipment, simple and convenient operation, short operation period and the like.
Drawings
Fig. 1 is a schematic view of the installation structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
in the figure: 1-a compensation ring; 2-a fixing device; 3-a flange plate; 4-a pipeline; 1-1-through hole, 1-2-limit groove.
Detailed Description
As shown in fig. 1 and 2, the town gas floor type pressure regulating cabinet flange connection compensation device comprises two flanges 3 on inlet and outlet pipelines of the pressure regulating cabinet, a fixing device 2 for connecting the two flanges 3, a compensation ring 1 and a sealing washer, wherein the compensation ring 1 and the sealing washer are arranged between the two flanges 3. And a sealing gasket is arranged between the compensating ring 1 and the flange plate 3. If a plurality of compensation rings 1 are used, a sealing gasket is arranged between the compensation rings 1 and the compensation rings 1.
The compensating ring 1 is provided with a through hole 1-1, and the diameter of the through hole 1-1 is the same as the inner diameter of the sealing washer matched with the flange plate 3. The outer diameter of the compensation ring 1 is smaller than or equal to the diameter of a circle formed by the plurality of fixing devices 2.
When the outer diameter of the compensating ring 1 is larger than the diameter of a circle formed by the plurality of fixing devices 2, the compensating ring 1 is provided with a limiting groove 1-2, and the fixing devices 2 are arranged in the limiting groove 1-2 during installation. The stop groove 1-2 can also be provided in the form of a through hole if the diameter of the compensating ring 1 is sufficiently large. The fixing device 2 is arranged in the limiting groove 1-2 or the through hole, and is helpful for preventing the dislocation of the compensation ring 1 caused by external force in the use process when a plurality of compensation rings 1 are installed.
The number of the limiting grooves 1-2 or the through holes is the same as that of the fixing holes on the flange plate 3.
The compensating ring 1 can be processed into different thicknesses of 7 mm, 10 mm, 13 mm and the like, sealing lines are processed on two surfaces of the compensating ring according to the processing technology requirement of the flange, and small chamfers of 45 degrees are formed inside and outside the circumference of the compensating ring.
During installation, an operator firstly measures the distance between two flanges which are separated from an original pipeline, and if the distance is more than 7 mm and less than 10 mm, a compensation ring of 7 mm is inserted between the two original connecting flanges; if the diameter is larger than 10 mm and smaller than 13 mm, a compensation ring of 10 mm is inserted between the two original connecting flanges; more than 13 mm and less than 30 mm, two compensating rings of 7 mm and 13 mm are inserted between the two original connecting flanges. By analogy, the compensation length is controlled to be within 30 mm in principle, namely the compensation length of 3 compensation rings, namely random combination is realized. And simultaneously, corresponding sealing materials are adopted between each compensating ring to seal the rings. And finally, replacing the original matched bolt with the use length suitable for being additionally provided with the compensation ring according to the elongated length of the distance between the two original connecting flanges, and tightening the bolt to achieve the compensation process effect. And finally, carrying out a tightness test according to the pipeline gas acceptance standard, and putting the pipeline gas into operation after the technical requirements are met.
According to the initial estimate, when the conventional construction process for treating the type settlement usually adopts a strong combination or the strong combination and cannot realize effective connection of two flanges, the original pipeline is cut by using oxyacetylene, and then a short pipe is additionally arranged for compensation. And the utility model can quickly reach the compensation operation of the pipeline length in more than twenty minutes. The manufacturing cost of the compensating ring and the construction cost of operators are only within dozens of yuan to 300 yuan.
Claims (6)
1. Town gas console mode regulator cabinet flange joint compensation arrangement, including two ring flanges (3) on the regulator cabinet business turn over/export pipeline to and fixing device (2) of connecting two ring flanges (3), its characterized in that: the flange plate is characterized by further comprising a compensation ring (1) and a sealing washer, wherein the compensation ring (1) and the sealing washer are arranged between the two flange plates (3).
2. The town gas floor type pressure regulating cabinet flange connection compensation device according to claim 1, is characterized in that: the compensating ring (1) is provided with a through hole (1-1), and the diameter of the through hole (1-1) is the same as the inner diameter of the sealing washer matched with the flange plate (3).
3. The town gas floor type pressure regulating cabinet flange connection compensation device according to claim 1 or 2, is characterized in that: and a sealing gasket is arranged between the compensating ring (1) and the flange plate (3) or/and between the compensating ring (1) and the compensating ring (1).
4. The town gas floor type pressure regulating cabinet flange connection compensation device according to claim 3, is characterized in that: the outer diameter of the compensation ring (1) is smaller than or equal to the diameter of a circle formed by the plurality of fixing devices (2).
5. The town gas floor type pressure regulating cabinet flange connection compensation device according to claim 3, is characterized in that: when the outer diameter of the compensation ring (1) is larger than the diameter of a circle formed by the plurality of fixing devices (2), the compensation ring (1) is provided with a limiting groove (1-2), and during installation, the fixing devices (2) are arranged in the limiting groove (1-2).
6. The town gas floor type pressure regulating cabinet flange connection compensation device of claim 5, which is characterized in that: the number of the limiting grooves (1-2) is the same as that of the fixing holes in the flange plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022941782.2U CN213809330U (en) | 2020-12-11 | 2020-12-11 | Flange connection compensation device for town gas floor type pressure regulating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022941782.2U CN213809330U (en) | 2020-12-11 | 2020-12-11 | Flange connection compensation device for town gas floor type pressure regulating cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213809330U true CN213809330U (en) | 2021-07-27 |
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ID=76944850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022941782.2U Active CN213809330U (en) | 2020-12-11 | 2020-12-11 | Flange connection compensation device for town gas floor type pressure regulating cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213809330U (en) |
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2020
- 2020-12-11 CN CN202022941782.2U patent/CN213809330U/en active Active
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