A self-steam-water condensate recovery station

Abstract

The self steam-water condensate recovery station has the advantages that no drain valve needs to be arranged in the process of recovering the condensed water, a large number of valve groups are reduced, investment is reduced, maintenance and replacement costs of the drain valve in the process of recovering the condensed water are reduced, steam-water separation is realized in the station, the self steam-water condensate recovery station has no easily-damaged parts and can be almost maintenance-free, and the cost and workload of inspection and maintenance are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of petroleum and chemical heat tracing technology, and is a self-steaming water condensate recovery station. Background Technology

[0002] In petrochemical plants, when the temperature is low, steam is often used as a heat medium to heat the process pipelines to prevent the viscous medium from freezing and condensing. However, when using steam for heat tracing, condensate will be generated during the steam release process, which needs to be centrally recovered through a condensate recovery station.

[0003] In existing technologies, condensate recovery stations are typically equipped with steam traps. These steam traps use internal mechanical structures to sense changes in external temperature and pressure to prevent steam from escaping and to drain water. Each branch pipe in a condensate recovery station has multiple shut-off valves and condensate drain valves for inspection and maintenance of the steam traps. The increased number of valves increases manufacturing costs. The steam traps require regular maintenance, and the operation of opening and closing multiple shut-off valves and condensate drain valves simultaneously during inspection and maintenance is complex. The frequent operation of the internal mechanical structure of the steam traps causes aging and damage to the corresponding components, increasing maintenance costs. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a self-separating steam-water condensate recovery station. In the condensate recovery process, there is no need to install a drain valve. The condensate recovery is completed by steam-water separation through the self-separating steam-water condensate recovery station's own structure, which reduces the valve group and lowers the investment and maintenance costs of the condensate recovery station.

[0005] To achieve the above objectives, this utility model provides a self-contained steam-water condensate recovery station, comprising: a manifold, flange one, flange two, gate valves, branch pipes, a steam drum, a drain pipe, a 90° drain pipe bend, flange three, a flange cover, flange four, and a vent. The manifold has several branch pipes on its left and right sides, and several gate valves are installed on the branch pipes on both sides of the manifold. Flange two is located above the manifold, and a steam drum is located above flange two. The steam drum is connected to flange two on the manifold via flange one on the steam drum, and a vent is located at the top of the steam drum. Flange three is located below the manifold, and a flange cover is located below flange three.

[0006] Preferably, the manifold is provided with a drain pipe, and the upper part of the drain pipe is provided with a 90° drain pipe bend. The end of the 90° drain pipe bend passes through the steam drum and is located outside the manifold. The end of the 90° drain pipe bend is provided with a flange.

[0007] Preferably, after the steam tracing releases heat, the medium that forms a two-phase mixture of steam and water enters the branch pipe through the gate valve, and then enters the manifold. At this time, the steam and water in the manifold are separated by their specific gravity difference, that is, the water flows downward and the steam rises and enters the steam drum. As the condensate in the manifold increases, the condensate will form a condensate seal at the bottom of the manifold to prevent the steam from entering the drain pipe. When the temperature and pressure of the steam in the steam drum above the manifold change, the steam will condense into water and flow back to the bottom of the manifold and enter the drain pipe, and be discharged from the drain pipe along with other condensate. The bottom of the manifold is equipped with a flange cover, which can be opened periodically to drain the dirt in the manifold.

[0008] The beneficial effects of this utility model are: a self-separating steam-water condensate recovery station does not require the installation of steam traps during the condensate recovery process, which reduces a large number of valve groups, thereby reducing investment and the maintenance and replacement costs of steam traps during condensate recovery. The separation of steam and water is achieved within the station. The self-separating steam-water condensate recovery station has no easily damaged parts and can be almost maintenance-free, which greatly reduces the cost and workload of inspection and maintenance. Attached Figure Description

[0009] Figure 1 This is a front view of a self-steaming water condensate recovery station according to the present invention.

[0010] Figure 2 This is a top view of a self-contained steam-water condensate recovery station according to the present invention.

[0011] The diagram includes: 1. Manifold; 2. Flange 1; 3. Flange 2; 4. Gate valve; 5. Branch pipe; 6. Steam drum; 7. Drain pipe; 7.1. 90° drain pipe bend; 8. Flange 3; 9. Flange cover; 10. Flange 4; 11. Condensate seal; 12. Drain port. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings: like Figure 1 The self-contained steam-water condensate recovery station shown includes: a manifold 1, flange 1 2, flange 2 3, gate valve 4, branch pipe 5, steam drum 6, drain pipe 7, 90° drain pipe bend 7.1, flange 3 8, flange cover 9, flange 4 10, and vent 12; the manifold 1 has several branch pipes 5 on its left and right sides, and several gate valves 4 are provided on the branch pipes 5 on the left and right sides of the manifold 1; flange 2 3 is provided above the manifold 1, and steam drum 6 is provided above flange 2 3. The steam drum 6 is connected to flange 2 2 on the manifold 1 through flange 1 2 on the steam drum 6, and vent 12 is provided at the top of the steam drum 1.

[0013] A flange 8 is provided below the manifold 1, and a flange cover 9 is provided below the flange 8.

[0014] like Figure 1 , Figure 2 The manifold 1 shown is provided with a drain pipe 7. The upper part of the drain pipe 7 is provided with a 90° drain pipe bend 7.1. The end of the 90° drain pipe bend 7.1 passes through the steam drum 6 and is placed outside the manifold 1. The end of the 90° drain pipe bend 7.1 is provided with a flange 10.

[0015] Combination Figure 1 , Figure 2 The following is an explanation of the working principle of a self-contained steam-water condensate recovery station: When the steam tracing releases heat, the medium that forms a two-phase steam-water mixture enters the branch pipe 5 through the gate valve 4. After passing through the branch pipe 5, it enters the manifold 1. At this time, the steam and water in the manifold 1 are separated by their specific gravity difference, that is, the water flows downward and the steam rises and enters the steam drum 6. As the condensate in the manifold 1 increases, the condensate will form a condensate seal 11 at the bottom of the manifold 1 to prevent the steam from entering the drain pipe 7. When the temperature and pressure of the steam in the steam drum 6 above the manifold 1 change, the steam will condense into water and flow back to the bottom of the manifold 1 and enter the drain pipe 7, and be discharged from the drain pipe 7 along with other condensate. The bottom of the manifold 1 is equipped with a flange cover 9, which can be opened periodically to drain the dirt in the manifold 1.

[0016] This utility model has a simple structure and low manufacturing cost. Practical industrial application has shown that it has good applicability in the field of petroleum and chemical heat tracing technology. In the process of condensate recovery, there is no need to install steam traps, which reduces a large number of valve groups, thereby reducing investment and reducing the maintenance and replacement costs of steam traps during condensate recovery. The separation of steam and water is achieved in-station. The self-separating steam and water condensate recovery station has no vulnerable parts and can be almost maintenance-free, which greatly reduces the cost and workload of inspection and maintenance.

[0017] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A self-contained steam-water condensate recovery station, comprising: The assembly consists of a manifold (1), flange one (2), flange two (3), gate valve (4), branch pipe (5), steam drum (6), drain pipe (7), 90° drain pipe bend (7.1), flange three (8), flange cover (9), flange four (10), and vent (12); characterized in that: the manifold (1) is provided with several branch pipes (5) on the left and right sides, and several gate valves (4) are provided on the branch pipes (5) on the left and right sides of the manifold (1); flange two (3) is provided above the manifold (1), and steam drum (6) is provided above flange two (3). The steam drum (6) is connected to flange two on the manifold (1) through flange one (2) on the steam drum (6), and vent (12) is provided at the top of the steam drum; flange three (8) is provided below the manifold (1), and flange cover (9) is provided below flange three (8).

2. The self-contained steam-water condensate recovery station according to claim 1, characterized in that: The manifold (1) is provided with a drain pipe (7), and the upper part of the drain pipe (7) is provided with a 90° drain pipe bend (7.1). The end of the 90° drain pipe bend (7.1) passes through the steam drum (6) and is placed outside the manifold (1). The end of the 90° drain pipe bend (7.1) is provided with a flange (10).

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