A high pressure pipeline dosing flushing ring

Abstract

The present invention provides a high-pressure pipeline dosing and flushing ring. When the pipeline system is operating normally, the dosing port is not installed in the pipeline system, thereby simplifying the pipeline system. When the pipeline system is dosing and cleaning, the dosing and flushing ring replaces the high-pressure gasket ring on the pipeline system during normal operation. Since the dosing and cleaning conditions are low-pressure conditions, the dosing and flushing ring is designed according to the low-pressure conditions. Compared with the technical solution of setting a fixed dosing port, it can save high-pressure materials, reduce investment, and increase safety.

Description

Technical Field

[0001] The patent of this invention belongs to the technical field of pipeline connection of petroleum and chemical equipment, and specifically relates to a high-pressure pipeline dosing flushing ring. Background Art

[0002] In petrochemical enterprises, when some devices (such as hydrogenation devices) are operating normally, the entire system is in a high-pressure state (usually 10-25Mpa). Before starting or after running for a period of time, such devices will produce sediments due to side reactions of the medium in the pipes. When they are shut down, the pipes need to be cleaned with water or chemicals need to be injected to neutralize and remove the sediments.

[0003] When adding drugs and cleaning the pipe system, the system operates under low-pressure conditions, and isolation measures should be taken to prevent the injected drugs or clean water from flowing into the relevant equipment. The traditional design method is to open a dosing port on the pipeline, and use high-pressure gaskets and blind plates near the equipment to separate the pipe system from the equipment. This design method requires a special dosing port on the pipe system. The dosing port is in a high-pressure state when the pipe system is operating normally, and its end needs to be separated from the main pipe system by a high-pressure valve or blind plate. On the one hand, the blind plate is easy to corrode and damage, and on the other hand, it increases high-pressure pipe fittings. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a high-pressure pipeline dosing and flushing ring. When the pipeline system is operating normally, the dosing port is not installed in the pipeline system, thereby simplifying the pipeline system. When the pipeline system is dosing and cleaning, the dosing and flushing ring replaces the high-pressure gasket ring on the pipeline system during normal operation. Because the dosing and cleaning conditions are low-pressure conditions, the dosing and flushing ring is designed according to the low-pressure conditions. Compared with the technical solution of setting a fixed dosing port, it can save high-pressure materials, reduce investment, and increase safety.

[0005] The present invention is realized through the following technical solutions:

[0006] A high-pressure pipeline dosing flushing ring comprises a sealing outer ring, a partition plate, a dosing branch pipe and a dosing flange, wherein one end of the dosing branch pipe is connected to the sealing outer ring, and the other end of the dosing branch pipe is connected to the dosing flange; the diameter of the sealing outer ring is the same as the diameter of the ring groove of the standard flange of the pipeline, the outer edge type of the sealing outer ring is consistent with the ring groove of the standard flange of the pipeline, and the thickness of the sealing outer ring is the sum of the thickness of the high-pressure gasket ring and the gasket of the pipeline; the partition plate is fixed on the inner wall of the sealing outer ring, and the distance between the partition plate and the outer edge of either side of the sealing outer ring is greater than the groove depth of the paired standard flange.

[0007] The invention provides a high-pressure pipeline dosing flushing ring, which is further characterized in that the dosing branch pipe and the dosing flange are connected by welding.

[0008] The invention provides a high-pressure pipeline dosing and flushing ring, which is further characterized in that it also includes a handle, which is welded to the outer wall of the sealing outer ring on the opposite side of the dosing branch pipe.

[0009] The invention discloses a high-pressure pipeline dosing and flushing ring, which is further characterized in that a mark indicating the caliber of the high-pressure pipeline dosing and flushing ring and the pound grade information of the matching flange is provided on the handle.

[0010] The invention discloses a high-pressure pipeline dosing and flushing ring, which is further characterized in that a small hole is opened on the outer end side of the handle.

[0011] The invention provides a high-pressure pipeline dosing flushing ring, which is further characterized in that the diameter of the small hole is 10 mm.

[0012] The beneficial effects of the present invention are as follows:

[0013] (1) Since the process conditions of dosing and cleaning conditions are lower than those of normal operating conditions, the material and thickness of the dosing and flushing ring are lower than those of the blind plate designed under high pressure conditions (normal operating conditions), saving materials and reducing investment.

[0014] (2) The dosing and flushing ring is equipped with a dosing port, so there is no need to open a dosing port on the high-pressure pipeline, which reduces high-pressure leakage points and simplifies the high-pressure pipeline system.

[0015] (3) The high-pressure pipeline dosing flushing ring of the present invention is matched with a standard flange for use, has a simple structure and manufacturing, high reliability, and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the patent of this invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the A-direction structure.

[0018] The reference numerals in the accompanying drawings are:

[0019] 1. Sealing outer ring; 2. Partition plate; 3. Dosing branch pipe; 4. Dosing flange; 5. Handle; 6. Mark; 7. Small hole. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings:

[0021] The implementation of the technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0022] like Figure 1-2As shown, a high-pressure pipeline dosing and flushing ring is composed of a sealing outer ring 1, a partition plate 2, a dosing branch pipe 3, a dosing flange 4, a handle 5, a mark 6 and a small hole 7. When the device is operating normally, a high-pressure gasket is installed on the pipeline near the equipment. When the pipeline system is dosing and cleaning, the dosing and flushing ring is used to replace the high-pressure gasket and installed on the pipeline.

[0023] The diameter of the dosing branch pipe 3 is DN20-DN50, which is consistent with the diameter of the external dosing and cleaning pipelines, and one end of the dosing branch pipe 3 is welded to the dosing flange 4. The dosing flange 4 is used to connect to the external dosing and cleaning pipelines, and its pound level is 150LB or 300LB. The other end of the dosing branch pipe 3 is connected to the sealing outer ring 1, and the medicine and cleaning water can be injected into the sealing outer ring 1 through the dosing branch pipe 3.

[0024] The sealing outer ring 1 is used in conjunction with the standard flange of the high-pressure pipeline, and its diameter is equal to the diameter of the ring groove of the matching flange. The outer edge type and size of the sealing outer ring 1 are consistent with the type and size of the ring groove of the matching flange. Figure 1 The sealing surface type of the paired flange shown is a tongue-and-groove surface, and the outer edge angle of the sealing outer ring 1 is 23°. The thickness of the sealing outer ring 1 is equal to the sum of the thickness of the high-pressure gasket ring replaced by the chemical flushing ring on the pipeline during chemical cleaning and the gasket matching the high-pressure gasket ring.

[0025] The partition plate 2 is fixed on the inner wall of the sealing outer ring 1 to separate the pipe system from the equipment (reactor). The distance between the partition plate 2 and the outer edge of any side of the sealing outer ring 1 is greater than the groove depth of the matching flange.

[0026] The handle 5 is welded to the outer wall of the sealing outer ring 1 on the opposite side of the dosing branch pipe 3. There is a mark 6 on the handle indicating the caliber of the high-pressure pipeline dosing flushing ring and the pound grade information of the matching flange. At the same time, a small hole 7 is opened on the outer end side of the handle 5 for installation and hanging placement. The diameter of the small hole 7 is 10 mm.

[0027] The above are only typical embodiments of the present invention, and those skilled in the art can make appropriate modifications and improvements thereon, but they are substantially the same as the present invention and also fall within the protection scope of the present invention.

Claims

1. A high-pressure pipeline dosing flushing ring, comprising a sealing outer ring, a partition plate, a dosing branch pipe and a dosing flange, characterized in that: One end of the dosing branch pipe is connected to the sealing outer ring, and the other end of the dosing branch pipe is connected to the dosing flange; the diameter of the sealing outer ring is the same as the diameter of the ring groove of the standard flange of the pipeline, the outer edge type of the sealing outer ring is consistent with the ring groove of the standard flange of the pipeline, and the thickness of the sealing outer ring is the sum of the thickness of the high-pressure gasket and the gasket of the pipeline; the partition plate is fixed on the inner wall of the sealing outer ring, and the distance between the partition plate and the outer edge of either side of the sealing outer ring is greater than the groove depth of the paired standard flange.

2. A high-pressure pipeline dosing and flushing ring according to claim 1, characterized in that: The connection method between the dosing branch pipe and the dosing flange is welding.

3. A high-pressure pipeline dosing and flushing ring according to claim 1, characterized in that: The utility model also comprises a handle which is welded on the outer wall of the sealing outer ring on the opposite side of the dosing branch pipe.

4. A high-pressure pipeline dosing and flushing ring according to claim 3, characterized in that: The handle has markings indicating the diameter of the high-pressure pipeline dosing flushing ring and the pound grade information of the matching flange.

5. A high-pressure pipeline dosing and flushing ring according to claim 4, characterized in that: A small hole is provided on the outer end side of the handle.

6. A high-pressure pipeline dosing and flushing ring according to claim 5, characterized in that: The diameter of the small hole is 10 mm.

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