Water attack prevention condensation water system

Abstract

The utility model relates to a low-pressure condensation water system, in particular to a water impact prevention condensation water system which comprises a condensation water pipeline and a recovery pipeline which is connected above the condensation water pipeline and leads to a reforming flash tank system. The condensed water pipeline is led out from the outside and connected to one end of the recycling pipeline, and the other end of the recycling pipeline is connected to the tank field boundary area through the control valve set. A plurality of portal frame type structures are formed on the recovery pipeline, and an exhaust mechanism is arranged above the portal frame type structure, close to the direction of the condensed water pipeline, of the recovery pipeline; the non-condensed gas in the recovery pipeline is exhausted through the exhaust mechanism; high-point exhaust points are additionally arranged in a water attack generation area of a system pipeline, non-condensed gas in the pipeline can be rapidly exhausted from the high-point exhaust points through exhaust valve sets of the high-point exhaust points, and air resistance is reduced; according to the structural design, the water attack exhaust time can be saved, the treatment time is shortened, and the risk caused by water attack in the treatment process is reduced.

Description

Technical Field

[0001] This utility model relates to low-pressure condensate systems, specifically to a water hammer-proof condensate system, which is used to improve the long-term water hammer problem in condensate systems in refineries due to terrain and other reasons, and belongs to the field of chemical technology. Background Technology

[0002] Steam, as a heat energy carrier, is widely used in industries such as petroleum, chemical, papermaking, rubber, and power. Regarding the condensate system operating conditions within the plant, 1.0 MPa steam users, heat tracing return water, and low-pressure condensate generated by the liquid separators along the route are collected in the system's condensate pipeline. From there, the condensate is transported to the reforming flash tank to produce 0.46 MPa steam. The condensate is then sent to the cryogenic heat system and ultimately reused at the power plant.

[0003] After the condensate from the 1.0MPA steam users and the heat tracing return water, as well as the condensate from the liquid distribution package along the route, enters the condensate pipeline, it becomes saturated condensate at almost the same temperature and pressure after the latent heat of vaporization. Due to the excessive steam and condensate discharged from the steam traps, they accumulate in the condensate pipeline. The non-condensable gases in the condensate recovery system are not discharged in time, causing gas locks that prevent normal recovery through the pipeline, resulting in low-pressure condensate impacting elbows and other points, causing liquid hammer. Utility Model Content

[0004] In view of the technical problem of water hammer causing pipeline damage in the low-pressure condensate system, the purpose of this utility model is to provide a water hammer-resistant condensate system. By adding high-point exhaust points in the water hammer area of ​​the system pipeline, non-condensable gases can be quickly discharged from these points, reducing the occurrence of gas lock.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a water-resistant condensate system, comprising: a condensate pipeline and a recovery pipeline connected above the condensate pipeline to a reforming flash tank system; the condensate pipeline is led out from the outside and connected to one end of the recovery pipeline, and the other end of the recovery pipeline is connected to the tank area boundary via a control valve group; multiple gantry-type structures are formed on the recovery pipeline, wherein an exhaust mechanism is installed above the gantry-type structure of the recovery pipeline near the condensate pipeline; so that non-condensable gases in the recovery pipeline are discharged through the exhaust mechanism;

[0006] Furthermore, the control valve assembly includes two gate valves and a check valve located between the two gate valves;

[0007] For valve groups entering the device boundary area, check valves prevent backflow.

[0008] Furthermore, the gantry structure is designed in a "Ji" shape, and the elbow position from the low point to the high point of the gantry structure of the recovery pipeline is the water hammer area of the condensate; the exhaust mechanism is connected to the high point elbow position of the recovery pipeline;

[0009] Furthermore, the exhaust mechanism extends upward from the high point elbow position of the "gantry" of the recovery pipeline and rotates and extends to the lower area of the "gantry";

[0010] Furthermore, the exhaust mechanism includes: a high point vent valve, a water-blocking exhaust valve, and a low point exhaust valve; the high point vent valve is connected to the upper surface of the gantry closest to the recovery pipeline through a pipeline, the pipeline extends upward from the high point vent valve and is connected to the water-blocking exhaust valve, and the pipeline passing through the position of the water-blocking exhaust valve rotates downward and extends to the lower part of the gantry of the recovery pipeline and is connected to the low point exhaust valve;

[0011] The three valves form a high point exhaust valve group of the recovery pipeline. Among them, the position of the high point vent valve is a newly added high point exhaust point, and the high point vent valve is in an open state all the time.

[0012] Furthermore, the type of the high point vent valve is, model: gate valve, pipe diameter is DN25, and class is 300LB.

[0013] With the above water hammer prevention condensate system, when the condensate system is running normally, the incompressible gas accumulated in the pipeline accumulates at the elbows or high points. To avoid excessive gas accumulation here and form air resistance, the air in the pipeline is discharged through the high point vent valve, water-blocking exhaust valve, and low point exhaust valve through the high point exhaust valve group first, to avoid forming air resistance and achieve the purpose of steam-blocking and drainage, reduce the frequency and treatment time of water hammer, and at the same time reduce the risk of flange and weld joint tearing caused by the vibration of the pipeline due to water hammer.

[0014] During normal pipeline operation of the low point exhaust valve, the high point vent valve and the water-blocking exhaust valve are both open all the time, and the low point exhaust valve is slightly open for exhaust.

[0015] The beneficial effects of the water hammer prevention condensate system of the present utility model are:

[0016] By adding a high point exhaust point in the water hammer area of the system pipeline, the non-condensable gas in the pipeline can be quickly discharged through the exhaust valve group at the high point exhaust point, reducing the occurrence of air resistance; this structural design can save the time of water hammer exhaust, reduce the treatment time, and reduce the risk brought by water hammer during the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] In the figure, 1 is the condensate pipeline, 2 is the recovery pipeline, 3 is the gate valve, 4 is the check valve, 5 is the high-point vent valve, 6 is the water-blocking exhaust valve, 7 is the low-point exhaust valve, and 8 is the pipeline. Detailed implementation manners

[0019] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0020] See Figure 1 As shown, a water-hammer-proof condensate system includes: a condensate pipeline 1 and a recovery pipeline 2 connected above the condensate pipeline 1 and leading to the reforming flash tank system; the condensate pipeline 1 is led out from the outside and connected to one end of the recovery pipeline 2, and the other end of the recovery pipeline ② is connected to the tank farm boundary through a control valve group; multiple gantry-type structures are formed on the recovery pipeline 1, and an exhaust mechanism is provided above the gantry-type structure of the recovery pipeline 2 close to the condensate pipeline 1 direction; so that the non-condensable gas in the recovery pipeline 2 is discharged through the exhaust mechanism;

[0021] Further, the control valve group includes two gate valves 3 and a check valve 4 located between the two gate valves 3;

[0022] Further, the gantry-type structure is designed as a "U" shape, and the low-point to high-point elbow position of the gantry-type structure of the recovery pipeline 2 is the water-hammer area of the condensate; the exhaust mechanism is connected to the high-point elbow position of the recovery pipeline 2;

[0023] Further, the exhaust mechanism extends upward from the high-point elbow position of the "gantry" of the recovery pipeline 2 and turns and extends to the lower area of the "gantry";

[0024] Further, the exhaust mechanism includes: a high-point vent valve 5, a water-blocking exhaust valve 6, and a low-point exhaust valve 7; the high-point vent valve 5 is connected to the upper surface of the gantry closest to the recovery pipeline 2 through a pipeline, the pipeline extends upward from the high-point vent valve 5 and is connected to the water-blocking exhaust valve 6, the pipeline passing through the water-blocking exhaust valve 6 turns downward, extends downward to the lower part of the "gantry" of the recovery pipeline 2 and is connected to the low-point exhaust valve 7;

[0025] The three valves form a high-point exhaust valve group of the recovery pipeline 2. Among them, the position of the high-point vent valve 5 is a newly added high-point exhaust point, and the high-point vent valve 5 is in an open state.

[0026] By adopting the above-mentioned water hammer condensate system, when the condensate system is operating normally, the incompressible gas accumulated in the pipeline will accumulate at bends or high points. In order to avoid excessive gas accumulation and the formation of air blockage, the air in the pipeline will be discharged in time through the high point air valve 5 by the set high point air valve group, so as to avoid the formation of air blockage, thus reducing the frequency of water hammer and the treatment time. At the same time, it reduces the risk of flange and weld tearing caused by vibration of the pipeline due to water hammer.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A waterproof condensation system, characterized in that, Comprising: A condensate pipeline and a recovery pipeline connected above the condensate pipeline and leading to the reforming flash tank system; the condensate pipeline is led out from the outside and connected to one end of the recovery pipeline, and the other end of the recovery pipeline is connected to the tank farm boundary through a control valve group; multiple gantry-type structures are formed on the recovery pipeline, and an exhaust mechanism is arranged above the gantry-type structure on the recovery pipeline close to the condensate pipeline direction.

2. The waterproof condensation system according to claim 1, characterized in that: The control valve group includes two gate valves and a check valve located between the two gate valves.

3. The waterproof condensation system according to claim 1, characterized in that: The gantry-type structure is designed in a "zigzag" shape, and the elbow position from the low point to the high point of the gantry-type structure of the recovery pipeline is the water hammer area of the condensate; the exhaust mechanism is connected to the high point elbow position of the recovery pipeline.

4. A waterproof condensation system according to claim 3, characterized in that: The exhaust mechanism is led out upward from the high point elbow position of the'recovery gantry' of the recovery pipeline and extends in a rotary manner to the lower area of the'recovery gantry'.

5. A waterproof condensation system according to any one of claims 1-4, characterized in that: The exhaust mechanism includes: a high point vent valve, a water-blocking exhaust valve and a low point exhaust valve; the high point vent valve is connected to the upper surface of the'recovery gantry' closest to the recovery pipeline through a pipeline, the pipeline is led out upward from the high point vent valve and connected to the water-blocking exhaust valve, and the pipeline passing through the water-blocking exhaust valve position turns downward and extends downward to the lower part of the'recovery gantry' of the recovery pipeline and is connected to the low point exhaust valve.

6. A waterproof condensation system according to claim 5, characterized in that: The three valves form a high point exhaust valve group of the recovery pipeline. Among them, the position of the high point vent valve is the high point exhaust point, and the high point vent valve is in an open state.

7. A waterproof condensation system according to claim 5, characterized in that: The type of the high point vent valve is, and the model is; the diameter of the gate valve is DN25, and the pressure rating is 300LB.

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