Drain water condensation recovery device behind steam pipeline drain valve

Abstract

The utility model discloses a steam pipeline drain valve rear drain water condensation recovery device, and relates to the technical field of steam pipeline drain water, the steam pipeline drain valve rear drain water condensation recovery device comprises a drain water main pipeline, a drain water bypass, a drain water cooler and a drain water cooling header, one end of the drain water main pipeline and one end of the drain water bypass are connected with a steam pipeline, and the other end of the drain water bypass is connected into the drain water main pipeline; one end of the drainage cooler is connected with a drainage cooling header through a water outlet pipe; and the hydrophobic condensation recovery efficiency and safety can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam pipeline drain, in particular to a drain condensation recovery device after a steam pipeline drain valve. Background Art

[0002] Steam pipe drainage is required in thermal power plant equipment, such as thermal power plant heat and steam supply pipelines, high and low auxiliary interconnection pipelines, industrial steam supply pipelines and long-distance steam transmission pipelines. The current measures taken by power plants are basically to install a steam trap at the end of the steam trap to discharge the water and non-condensable gas to the atmosphere and the ground. If the water and non-condensable gas are not condensed and recovered, not only will the discharged water and non-condensable gas be wasted and pollute the environment, but also the grass and vegetation around the steam trap will be steamed to death by high-temperature steam and water. Utility Model Content

[0003] In view of the above problems, the utility model provides a novel steam turbine drain pipe drain recovery device.

[0004] The embodiment of the present application provides a steam pipeline trap post-drain condensate recovery device, comprising:

[0005] Drain main pipeline, drain bypass, drain cooler, drain cooling header, one end of the drain main pipeline and the drain bypass is connected to the steam pipeline, the other end of the drain bypass is connected to the drain main pipeline, the other end of the drain main pipeline is connected to the drain cooler through the drain pipe, and one end of the drain cooler is connected to the drain cooling header through the outlet pipe.

[0006] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0007] Through the combined design of the drain main pipeline, drain bypass, drain cooler and drain cooling manifold, efficient condensation and recovery of drain after the steam pipeline drain valve is achieved; multiple stop valves and bypass valves are set in the device, making the operation of the whole system more flexible and controllable, and the drain flow and condensation recovery efficiency can be adjusted according to actual needs; the drain cooler adopts a fully enclosed structure, which improves the safety and reliability of the device and reduces the risk of failure caused by drain leakage or external interference; the diameter and connection method of the drain pipe and the outlet pipe are optimized to ensure smooth drain flow and effective collection of condensed water. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The utility model is a structural schematic diagram of a steam pipeline drain condensate recovery device after the drain valve.

[0009] In the figure: 1, steam trap; 2, steam trap bypass; 3, steam trap cooler; 4, third stop valve; 5, steam trap cooling header; 101, first stop valve; 102, steam trap; 103, second stop valve; 201, bypass valve. DETAILED DESCRIPTION

[0010] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0011] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0012] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0013] like Figure 1 As shown, the present application provides a steam pipeline trap post-drain condensate recovery device, comprising:

[0014] A drain main pipeline 1, a drain bypass 2, a drain cooler 3, and a drain cooling header 5. One end of the drain main pipeline 1 and the drain bypass 2 are connected to the steam pipeline, and the other end of the drain bypass 2 is connected to the drain main pipeline 1. The other end of the drain main pipeline 1 is connected to the drain cooler 3 through a drain pipe, and one end of the drain cooler 3 is connected to the drain cooling header 5 through a water outlet pipe.

[0015] The main drain pipe 1 comprises: a first stop valve 101, a second stop valve 103, and a steam trap 102; the steam trap 102 is located between the first stop valve 101 and the second stop valve 103; the main function of the steam trap 102 is to automatically remove condensed water in systems such as steam pipes and heating equipment, and prevent steam leakage; when the steam trap 102 needs to be repaired or replaced, the first stop valve 101 and the second stop valve 103 can be closed to isolate the steam trap from the system.

[0016] The drain bypass 2 is provided with a bypass valve 201, which functions to achieve precise control and regulation of the flow of the main pipeline, so as to share the pressure of the main pipeline when too much gas enters the steam pipeline, and to adjust the control in time when a failure occurs in the main pipeline.

[0017] A third stop valve 4 is provided between the drain cooler 3 and the drain cooling header 5 to ensure personnel safety and to control whether to open it according to the amount of cooling water to improve the circulation effect of the cooling water.

[0018] The steam pipeline enters the drain cooler 3 after passing through the drain main pipeline 1 and the drain bypass 2. Preferably, the drain cooler 3 is a fully enclosed structure. Due to the fully enclosed structure, the drain cooler 3 will not evaporate during operation, thereby avoiding the reduction of water volume and the change of medium concentration caused by evaporation; this helps to maintain the quantity and quality of the circulating medium.

[0019] A high water level operation mechanism is provided in the drain cooler 3 to ensure that the steam pipe drain can be fully cooled. When there is too much water inside the drain cooler 3, the third stop valve 4 is opened to transport the excess water to the drain cooling header 5. When the water is transported at the same time, when the water volume is too little, the drain cooler 3 will close the third stop valve 4. The third stop valve 4 is not opened before the water inside the drain cooler 3 is completely cooled, thereby improving the cooling effect of the steam.

[0020] One end of the drain cooler 3 is connected to the drain cooling header 5 through a water outlet pipe. The drain cooling header 5 is semi-closed, and a cover is installed on the top of the drain cooling header 5 to facilitate the use of cooling water.

[0021] Preferably, the drain cooler 3 is made of a carbon steel pipe with a diameter of 500*5 mm, and end covers are added at both ends for welding to ensure that the drain cooler 3 is a fully enclosed structure.

[0022] Preferably, the drain pipe has a diameter of 32*3 mm, and is inserted into the bottom of the drain cooler 3 from one side.

[0023] Preferably, the water outlet pipe has a diameter of 30*3 mm and is led out from the other side, and the water outlet pipe is connected to the drain cooling header 5.

[0024] The steam pipeline drain enters the drain cooler 3 through the drain pipe, and is exchanged and cooled in the cooler; the cooled drain flows to the drain cooling header 5 through static pressure for collection. When cooling water is needed, the third stop valve 4 is closed to ensure personnel safety. During normal operation, the third stop valve 4 remains fully open.

[0025] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A steam pipeline trap condensate recovery device, characterized in that: include: A drain main pipeline (1), a drain bypass (2), a drain cooler (3), and a drain cooling header (5); one end of the drain main pipeline (1) and the drain bypass (2) are connected to a steam pipeline; the other end of the drain bypass (2) is connected to the drain main pipeline (1); the other end of the drain main pipeline (1) is connected to the drain cooler (3) via a drain pipe; and one end of the drain cooler (3) is connected to the drain cooling header (5) via a water outlet pipe.

2. A steam pipeline trap condensate recovery device according to claim 1, characterized in that: The drain main pipeline (1) comprises: a first stop valve (101), a second stop valve (103), and a drain valve (102); the drain valve (102) is located between the first stop valve (101) and the second stop valve (103).

3. A steam pipeline trap condensate recovery device according to claim 1, characterized in that: The drain bypass (2) is provided with a bypass valve (201).

4. A steam pipeline trap condensate recovery device according to claim 1, characterized in that: A third stop valve (4) is provided between the drain cooler (3) and the drain cooling header (5).

5. The steam pipeline trap condensate recovery device according to claim 1, characterized in that: The drain cooler (3) is a fully enclosed structure.

6. A steam pipeline trap condensate recovery device according to claim 1, characterized in that: The drain pipe has a diameter of 32*3 mm and is inserted into the bottom of the drain cooler (3) from one side.

7. The steam pipeline trap condensate recovery device according to claim 1, characterized in that: The water outlet pipe has a diameter of 30*3 mm and is connected to a drain cooling header (5). The drain cooling header (5) is semi-enclosed.

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