A ganged can system

Abstract

The utility model relates to the technical field of gas turbine waste heat boiler blowdown drainage, concretely is a kind of fixed tank system, it can both increase water recovery, and can improve cooling effect, it includes vertical fixed tank, the side of vertical fixed tank is provided with drainage inlet pipe, drainage outlet pipe, it is characterized in that, still include temperature reducing water inlet main pipeline, temperature reducing water inlet main pipeline is divided into temperature reducing water branch pipe one and temperature reducing water branch pipe two, temperature reducing water branch pipe one is connected to the temperature reducing water pipe of being set in the inside of vertical fixed tank and is penetrated through vertical fixed tank, spray hole is set on temperature reducing water pipe, temperature reducing water branch pipe two is connected to the drainage outlet pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater drainage from gas turbine waste heat boilers, specifically a fixed discharge tank system. Background Technology

[0002] Fixed discharge tanks, as a type of wastewater discharge and drainage device, are widely used in power plants and chemical enterprises. In the field of gas turbine waste heat boilers, fixed discharge tanks are indispensable, playing a crucial role in water recycling and reuse. However, different customers have different needs for this equipment. Some customers require water to be cooled to a temperature below 100℃ before being discharged into the fixed discharge pit to meet the recycling requirements of downstream equipment. In this process, maximizing water recovery and achieving maximum cooling with minimal desuperheating water are two important issues, and achieving a reasonable balance is a challenge. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a fixed discharge tank system, which can both increase the water recovery volume and improve the cooling effect.

[0004] The technical solution is as follows: a fixed discharge tank system, comprising a vertical fixed discharge tank, wherein a drain inlet pipe and a drain outlet pipe are provided on the side of the vertical fixed discharge tank, characterized in that it further comprises a desuperheating water inlet main pipe, wherein the desuperheating water inlet main pipe is divided into a desuperheating water branch pipe one and a desuperheating water branch pipe two, the desuperheating water branch pipe one penetrates the vertical fixed discharge tank and is connected to a desuperheating water pipe disposed inside the vertical fixed discharge tank, wherein a spray hole is provided on the desuperheating water pipe, and the desuperheating water branch pipe two is connected to the drain outlet pipe.

[0005] A further feature is that the desuperheating water pipe is an annular desuperheating water pipe, and a set of spray holes are evenly spaced on the annular desuperheating water pipe.

[0006] Each set of spray holes is evenly distributed in the upper half of the annular desuperheating water pipe;

[0007] The bottom of the vertical fixed discharge tank is provided with a bottom drain pipe that connects to the drain outlet pipe;

[0008] The end of the condensate outlet pipe that extends into the vertical fixed discharge tank is the siphon end;

[0009] A temperature remote sensing point is provided at the end of the hydrophobic outlet pipe.

[0010] By adopting this utility model, desuperheating water is added. A portion of the desuperheating water is sent into the vertical fixed discharge tank to cool all the condensate in the tank, thereby reducing flash evaporation and maximizing water recycling. Another portion of the desuperheating water is sent into the condensate outlet pipe to cool the discharged water. The same amount of desuperheating water can achieve a better cooling effect. The combined use of the two desuperheating water sources can both increase the amount of water recycled and improve the cooling effect. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 Enlarged cross-sectional view of the MM direction;

[0013] Figure 3 for Figure 2 Enlarged cross-sectional view along the NN direction. Detailed Implementation

[0014] See Figures 1 to 3 As shown, a fixed-discharge tank system includes a vertical fixed-discharge tank 1 and a desuperheating water inlet main pipe 3. The vertical fixed-discharge tank 1 is provided with a drain inlet pipe 2 and a drain outlet pipe 8 on its side. The desuperheating water inlet main pipe 3 is divided into a first desuperheating water branch pipe 4 and a second desuperheating water branch pipe 6. The first desuperheating water branch pipe 4 passes through the vertical fixed-discharge tank 1 and is connected to an annular desuperheating water pipe 5 installed inside the vertical fixed-discharge tank 1. A set of spray holes 5-1 are evenly spaced on the annular desuperheating water pipe 5, with a 10° interval between each set. Each set of spray holes 5-1 includes nine holes and is evenly distributed in the upper half of the annular desuperheating water pipe. The second desuperheating water branch pipe 6 is connected to the drain outlet pipe 8. Desuperheating water control valves 4-1 and 6-1 are respectively installed on the first desuperheating water branch pipe 4 and the second desuperheating water branch pipe 6, which can conveniently control the flow rate of the two desuperheating water lines.

[0015] The bottom of the vertical fixed discharge tank 1 is provided with a bottom drain pipe 9 connected to the drain outlet pipe 8. The bottom drain pipe 9 is provided with a normally closed drain valve 9-1, which is used to drain the vertical fixed discharge tank 1 when the furnace is shut down.

[0016] The end of the drainage outlet pipe 8 that extends into the vertical fixed discharge tank 1 is the siphon end.

[0017] Temperature remote sensing point 10 is installed at the end of the drainage outlet pipe 8 to participate in the real-time monitoring of drainage temperature, thereby providing data support for the control of the desuperheating water volume.

[0018] Desuperheating water enters from the main desuperheating water inlet pipe, and one path leads to desuperheating water branch pipe 4. This low-temperature water is sprayed out through the spray holes 5-1 on the annular desuperheating water pipe 5 to cool the water inside the tank. This path can cool all the condensate in the tank to reduce flash evaporation and maximize water recycling. One end of the condensate outlet pipe 8 is located at the bottom inside the vertical fixed discharge tank 1, and the other end is connected to the external fixed discharge pit for drainage through siphon action. Another path of desuperheating water enters the condensate outlet pipe 8 through desuperheating water branch pipe 6 to cool the water discharged from the condensate outlet pipe 8. This path of desuperheating water can only cool the water discharged from the tank and cannot reduce the amount of flash evaporation in the tank, but its advantage is that less high-temperature water is discharged, and the same amount of desuperheating water can achieve a better cooling effect.

[0019] The vertical fixed discharge tank 1 is provided with a steam exhaust pipe interface 11 at the top, through which the flash steam flows to the atmosphere.

Claims

1. A fixed-discharge tank system, comprising a vertical fixed-discharge tank, wherein a drain inlet pipe and a drain outlet pipe are provided on the side of the vertical fixed-discharge tank, characterized in that, It also includes a desuperheating water inlet main pipe, which is divided into a desuperheating water branch pipe one and a desuperheating water branch pipe two. The desuperheating water branch pipe one passes through the vertical fixed discharge tank and is connected to a desuperheating water pipe installed inside the vertical fixed discharge tank. The desuperheating water pipe is provided with a spray hole. The desuperheating water branch pipe two is connected to the drain outlet pipe.

2. The fixed-discharge tank system according to claim 1, characterized in that, The cooling water pipe is an annular cooling water pipe, and a set of spray holes are evenly spaced on the annular cooling water pipe.

3. The fixed-discharge tank system according to claim 2, characterized in that, Each set of spray holes is evenly distributed in the upper half of the annular desuperheating water pipe.

4. The fixed-discharge tank system according to claim 1, characterized in that, The bottom of the vertical fixed discharge tank is provided with a bottom drain pipe that connects to the drain outlet pipe.

5. A fixed-discharge tank system according to claim 1, characterized in that, The end of the condensate outlet pipe that extends into the vertical fixed discharge tank is the siphon end.

6. A fixed-discharge tank system according to claim 1, characterized in that, A temperature remote sensing point is provided at the end of the hydrophobic outlet pipe.

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