Starting heating steam pipe row for deaerator
By designing steam main pipe, guide pipe, flow distribution pipe, support hanger and porous boiling pipe in the starting heating steam pipe row of the deaerator, the problem of uneven steam flow is solved, uniform distribution and effective heating of steam are achieved, and the stability and heat transfer effect of the equipment are improved.
Patent Information
- Application Number
- CN202323589931.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The starting steam flows unevenly inside the heating steam pipe line of the deaerator, which affects the starting effect of the unit.
A starting heating steam pipe row for deaerator is designed, including a steam main pipe, a steam guide pipe, a flow distribution pipe, a pipeline support bracket and a boiling pipe with a porous structure. Through the cooperation of these components, the steam can be evenly distributed in the pipe row, achieving effective heating of condensate.
This design improves the uniformity of steam in the pipe row, reduces vibration and noise of the equipment, ensures the safety and stability of the equipment, and improves the overall heat transfer effect.
Smart Images
Figure CN222574374U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of deaerators, in particular to a startup heating steam pipe bank for a deaerator. Background Art
[0002] Deaerators are widely used in power systems to remove dissolved oxygen from feed water, and they play a very important role in protecting pipelines and boilers. Generally, built-in deaerators are equipped with independent startup heating steam pipe banks, which are used to introduce startup heating steam below the deaerator liquid level and start heating the condensate. After the startup steam flows inside the pipe bank, the poor uniformity of the steam inside the pipe bank directly affects the startup effect of the unit. A steam pipe bank structure with better uniformity of steam inside the pipe bank is still needed. Utility Model Content
[0003] Purpose of this utility model patent: In order to solve the problem that after the startup steam flows inside the tube bank, the uniformity of the steam inside the tube bank is not good, which directly affects the startup effect of the unit, the utility model proposes a startup heating steam tube bank for a deaerator.
[0004] The purpose of the utility model is achieved as follows: a deaerator startup heating steam pipe bank, which includes a steam main pipe, a steam guide pipe, a flow distribution pipe, a pipe support and hanger and a boiling pipe;
[0005] The steam main pipe is arranged vertically, the steam guide pipe crosses the steam main pipe and the middle parts of the two are connected to each other, each end of the steam guide pipe is connected to a flow distribution pipe, and each flow distribution pipe is externally connected to a plurality of pipe supports and hangers, and the pipe supports and hangers are used to be fixed to the inner wall of the deaerator, and the bottom of each flow distribution pipe is connected to a plurality of boiling tubes, and the boiling tubes are porous tubes.
[0006] Furthermore, a boiling tube plugging plate is connected to the bottom end of the boiling tube.
[0007] Furthermore, the distance between the blocking plate and the bottom end surface of the inner wall of the deaerator is 50mm-80mm.
[0008] Furthermore, several boiling tubes on one flow distribution tube and several boiling tubes on another flow distribution tube form a boiling tube group, the multiple boiling tubes in the boiling tube group are adjacent, and the multiple boiling tubes in each boiling tube group are connected by a steel section.
[0009] Furthermore, the plurality of boiling tubes below each flow distribution tube are evenly distributed inside the deaerator.
[0010] Furthermore, each end of the steam main pipe, the steam guide pipe and the flow distribution pipe is connected to a pipe cap.
[0011] Beneficial effects:
[0012] 1. This startup heating steam pipe array has a simple structure, less consumables, is easy to process and install, and has less consumables.
[0013] 2. By matching the diameters of pipelines at all levels, the steam flow rate can be controlled, the vibration of the equipment can be reduced, the noise can be low, and the safety and stability of the equipment can be easily ensured.
[0014] 3. By adjusting the diameter and spacing of the boiling tubes, they can be evenly arranged along the length of the equipment, achieving a good overall heat transfer effect.
[0015] 4. The boiling tube is a porous tube structure with a large injection area, which can increase the heat transfer area between vapor and liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the main internal view of a startup heating steam pipe bank for a deaerator of the utility model patent;
[0017] Figure 2 This is a top view of the flow distribution pipe of the utility model patent;
[0018] Figure 3 This is a left-side internal view of a startup heating steam pipe bank for a deaerator of the utility model patent. DETAILED DESCRIPTION
[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0020] Specific implementation method 1: A startup heating steam pipe bank for a deaerator, which includes a steam main pipe 1, a steam guide pipe 2, a flow distribution pipe 3, a pipe support bracket 4 and a boiling pipe 5;
[0021] The steam main pipe 1 is arranged vertically, the steam guide pipe 2 crosses the steam main pipe 1 and the middle parts of the two are connected to each other, each end of the steam guide pipe 2 is connected to a flow distribution pipe 3, and each flow distribution pipe 3 is connected to a plurality of pipe supports and hangers 4 on the outside, and the pipe supports and hangers 4 are used to be fixed to the inner wall of the deaerator, and the bottom of each flow distribution pipe 3 is connected to a plurality of boiling tubes 5, and the boiling tubes 5 are porous tubes.
[0022] In this embodiment: after the heating steam enters from the starting steam main pipe, it enters the flow distribution pipe 3 through the steam guide pipe 2 and diffuses evenly to both sides, and is finally discharged through the small holes in the boiling tube 5 to start heating the condensate water.
[0023] The supports are used to fix the flow distribution pipe in the deaerator.
[0024] Optionally, the number of boiling tubes can be adjusted by selecting boiling tubes of different diameters.
[0025] Specific implementation method 2: A startup heating steam pipe bank for a deaerator, wherein the bottom end of the boiling pipe 5 is connected to a boiling pipe plugging plate 7.
[0026] In this embodiment: the boiling tube plugging plate is used to seal the lower part of the boiling tube.
[0027] Other implementations are the same as the first specific implementation.
[0028] Specific implementation method three: A startup heating steam pipe row for a deaerator, the distance between the blocking plate 7 and the bottom end surface of the inner wall of the deaerator is 50mm-80mm.
[0029] In this embodiment, the distance between the blocking plate at the bottom end of the boiling tube and the inner wall shell of the deaerator is 50-80 mm to ensure that it will not interfere with the deaerator during operation.
[0030] Other implementations are the same as the second specific implementation.
[0031] Specific implementation method four: A startup heating steam pipe row for a deaerator, a plurality of boiling tubes 5 on a flow distribution pipe 3 and a plurality of boiling tubes 5 on another flow distribution pipe 3 form a boiling tube group, the multiple boiling tubes 5 in the boiling tube group are adjacent, and the multiple boiling tubes 5 of each boiling tube group are connected by a steel section 6.
[0032] In this embodiment: the boiling tube group is connected and fixed by steel sections to avoid excessive vibration during operation and ensure stable operation of the steam tube bank.
[0033] Other implementations are the same as the first specific implementation.
[0034] Specific implementation method five: A startup heating steam pipe row for a deaerator, wherein a plurality of boiling tubes 5 below each flow distribution pipe 3 are evenly distributed inside the deaerator.
[0035] In this embodiment: the boiling tubes are evenly distributed along the entire length of the deaerator cylinder; the flow cross-sectional area of the boiling tubes, the flow distribution tubes and the heating steam main pipe can be adjusted to balance the flow rate of the steam in the tubes and reduce the vibration of the pipelines.
[0036] Other implementations are the same as the first specific implementation.
[0037] Specific implementation method six: A startup heating steam pipe bank for a deaerator, characterized in that each end of the steam main pipe 1, the steam guide pipe 2 and the flow distribution pipe 3 is connected to a pipe cap 8.
[0038] In this embodiment: the pipe cap is used to seal both sides of the steam main pipe, the steam guide pipe and the flow distribution pipe.
[0039] Other implementations are the same as the first specific implementation.
[0040] Working principle:
[0041] The boiling tube adopts a special porous tube structure; the number of boiling tubes can be adjusted by selecting boiling tubes of different diameters so that the boiling tubes are evenly distributed along the length of the deaerator cylinder; the flow cross-sectional area of the boiling tube, the flow distribution tube and the heating steam main pipe can be adjusted to balance the flow velocity of the steam in the tube and reduce the vibration of the pipeline; the boiling tubes are connected by steel sections to improve the overall stability; the flow distribution pipe is fixed to the inner wall of the cylinder by pipe supports and hangers.
[0042] The heating steam enters from the main pipe, passes through the flow distribution pipe, and is finally discharged from the small holes in the boiling tube.
Claims
1. A deaerator startup heating steam pipe bank, characterized in that: It comprises a steam main pipe (1), a steam guide pipe (2), a flow distribution pipe (3), a pipe support and hanger (4) and a boiling pipe (5); The steam main pipe (1) is arranged vertically, the steam guide pipe (2) crosses the steam main pipe (1) and the middle parts of the two are connected to each other, each end of the steam guide pipe (2) is connected to a flow distribution pipe (3), each flow distribution pipe (3) is externally connected to a plurality of pipe support brackets (4), the pipe support brackets (4) are used to be fixed to the inner wall of the deaerator, and the bottom of each flow distribution pipe (3) is connected to a plurality of boiling pipes (5), and the boiling pipes (5) are porous pipes.
2. The deaerator startup heating steam pipe bank according to claim 1, characterized in that: The bottom end of the boiling tube (5) is connected to a boiling tube blocking plate (7).
3. The deaerator startup heating steam pipe bank according to claim 2, characterized in that: The distance between the blocking plate (7) and the bottom end surface of the inner wall of the deaerator is 50 mm to 80 mm.
4. The deaerator startup heating steam pipe bank according to claim 1, characterized in that: A plurality of boiling tubes (5) on one flow distribution tube (3) and a plurality of boiling tubes (5) on another flow distribution tube (3) form a boiling tube group, the plurality of boiling tubes (5) in the boiling tube group are adjacent, and the plurality of boiling tubes (5) in each boiling tube group are connected via a steel section (6).
5. The deaerator startup heating steam pipe bank according to claim 1, characterized in that: The plurality of boiling tubes (5) below each flow distribution tube (3) are evenly distributed inside the deaerator.
6. The deaerator startup heating steam pipe bank according to claim 1, characterized in that: Each end of the steam main pipe (1), the steam guide pipe (2) and the flow distribution pipe (3) is connected to a pipe cap (8).