Feed pump system for gas turbine
By adding corners in the middle section of the balance pump system and the interface with a flat thread design, the leakage problem caused by the displacement of the balance tube is solved, which significantly improves the sealing and reliability.
Patent Information
- Application Number
- CN202411722778.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-01-24
AI Technical Summary
In the fuel engine water supply pump system, the interface between the balance pipe and the water supply pump is frequently leaked, mainly due to the excessive displacement of the balance pipe expanding and contracting during the start and stop process.
The middle section of the design balance tube is curved, and the curve is used to form a buffer to reduce the displacement of the balance tube. The interface design of the balance tube and the pump -to -pump connection adopts a flat thread design, which increases the convex and copper pads to improve the sealing properties.
It effectively solves the problem of frequent leakage at the interface connecting the balance pipe and the water supply pump, and improves the sealing and reliability of the system.
Smart Images
Figure CN119353185A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a power plant, and in particular to a water feed pump system for a fuel engine. Background Art
[0002] The feed water pump is an important auxiliary equipment of the gas turbine. When in use, the balance pipe installed on the feed water pump and its connection interface with the feed water pump frequently leak. Summary of the invention
[0003] The present invention proposes a water feed pump system for a fuel engine, aiming to solve the above-mentioned problem.
[0004] The technical solution of the present invention: A feed water pump system for a fuel engine, the system comprising a feed water pump and a balancing pipe installed on the feed water pump. (Because the fuel engine unit is frequently started and stopped, and the steam temperature is high and the pressure is high, the temperature and pressure change greatly during shutdown and operation, and the balancing pipe itself expands and contracts violently due to cold and heat.) The displacement of the balancing pipe causes frequent leakage at its interface with the feed water pump. Based on this, a bend is added to the middle section of the balancing pipe, and the bend is used to form a buffer to reduce the displacement of the balancing pipe, thereby solving the problem of frequent leakage at its interface with the feed water pump.
[0005] The above technical solution is further refined, and the bend is a π bend.
[0006] The above technical solution is further refined, wherein the bend is horizontal.
[0007] The above technical solution is further refined, the balanced pipe rack is connected to two supports, and the connection points are located before and after the bend.
[0008] The docking interface between the balancing pipe and the water supply pump adopts a tapered thread design (conventional design), which should be able to provide a good sealing effect, but it is greatly affected by the displacement of the balancing pipe, which is counterproductive. Based on this, improvements are made. The docking interface between the balancing pipe and the water supply pump adopts a flat thread design and is equipped with a boss and a copper gasket.
[0009] The invention has the advantages of reasonable design and structural parts, and effectively solves the problem of frequent leakage of the connection interface between the balance pipe and the water supply pump. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a top view of the water feed pump system for the gas turbine.
[0011] In the figure, there is a water pump 1, a balance pipe 2, a horizontal π bend 2-1, and a support 3. DETAILED DESCRIPTION
[0012] As shown in the figure, a feed water pump system for a gas turbine includes a feed water pump 1, a balance pipe 2 installed on the feed water pump 1, and a horizontal π bend 2-1 is added to the middle section of the balance pipe 2; the balance pipe 2 is supported on two supports 3 and connected to the two supports 3, and the connection points are located in front of and behind the horizontal π bend 2-1; The butt joint between the balance pipe 2 and the water pump 1 adopts a flat thread design and is additionally provided with a boss and a copper gasket.
[0013] The above embodiments are only for illustrating the practical technical concept and features, and their purpose is to enable people familiar with this technology to understand the content of this utility and implement it accordingly, and they cannot be used to limit the protection scope of this utility. Any equivalent changes or modifications made according to the spirit and essence of this utility should be included in the protection scope of this utility.
Claims
1. A feed water pump system for a gas turbine, the system comprising a feed water pump and a balance pipe installed on the feed water pump, characterized in that: The middle section of the balance pipe is bent.
2. A water feed pump system for a gas turbine according to claim 1, characterized in that: The bend is a π bend.
3. A water feed pump system for a gas turbine according to claim 1, characterized in that: The bend is horizontal.
4. A water feed pump system for a gas turbine according to claim 1, characterized in that: The balance pipe rack is connected to two supports at two supports, and the connection points are located before and after the bend.
5. A water feed pump system for a gas turbine according to claim 1, characterized in that: The butt joint connecting the balance pipe and the water supply pump adopts a flat thread design and is additionally provided with a boss and a copper gasket.