WO2024082961A1 - 一种临时火力发电站锅炉水压试验*** - Google Patents

一种临时火力发电站锅炉水压试验*** Download PDF

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Publication number
WO2024082961A1
WO2024082961A1 PCT/CN2023/123122 CN2023123122W WO2024082961A1 WO 2024082961 A1 WO2024082961 A1 WO 2024082961A1 CN 2023123122 W CN2023123122 W CN 2023123122W WO 2024082961 A1 WO2024082961 A1 WO 2024082961A1
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Prior art keywords
water
boiler
pressure test
power station
thermal power
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PCT/CN2023/123122
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English (en)
French (fr)
Inventor
张群超
杜传国
王高风
赵佳帅
李兵
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中国电建集团山东电力建设第一工程有限公司
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Publication of WO2024082961A1 publication Critical patent/WO2024082961A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3281—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell
    • G01M3/329—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
    • G01M3/10—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for containers, e.g. radiators

Definitions

  • the invention relates to the technical field of boilers, in particular to a water pressure test system for a boiler in a temporary thermal power station.
  • the boiler water pressure test is an important way to check whether the boiler installation meets the industry standards in a cold state. The results of this test directly determine the subsequent boiler work and the stability of the commercial operation stage of the power station.
  • the conventional boiler water pressure test of power stations can only be carried out after the chemical water treatment system configured by the power station itself meets the operating conditions, produces qualified desalted water, and the boiler water delivery pipeline is connected.
  • the purpose of the present invention is to provide a temporary thermal power station boiler water pressure test system.
  • the qualified desalted water stored externally is transported to the boiler system and meets the water pressure test conditions, thereby avoiding progress stagnation caused by process delays, thereby saving time and costs.
  • a temporary thermal power station boiler water pressure test system comprising: an air pressure system, which is connected to the boiler system and is used to transport compressed air to the boiler; a water supply system, which comprises a desalted water tank, which is connected to the boiler system through a water supply system pipeline and is used to complete the water supply work of the boiler system; and a boosting system, which comprises a water supply tank, which is connected to the boiler system through a water supply tank pipeline and is used to complete the boosting work of the boiler system.
  • a pressure monitoring system is also included.
  • a water discharge system which is connected to the main pipe of the water supply system and is used to discharge water in the boiler system.
  • one end of the air pressure system is connected to the pickling valve of the boiler water wall lower header of the boiler system, and the other end is connected to the air compressor.
  • the water supply system pipeline includes a main pipeline and two branch pipelines.
  • the main pipeline is provided with a desalted water pump and a normal water replenishment booster pump.
  • the two branch pipelines are respectively connected to the drain valves of the front and rear water-cooled wall lower headers of the boiler system, and both branch pipelines are provided with water-cooled wall lower header periodic drain electric valves.
  • the water replenishment tank is connected to the desalted water tank.
  • the water supply tank pipeline includes a booster pipeline and a water supply recirculation pipeline connected between the booster pipeline and the water supply tank.
  • a boiler water pressure test booster pump is provided on the booster pipeline.
  • the pressure monitoring system includes a temporary system pressure monitoring system connected to the booster pipeline and a boiler system pressure monitoring system connected to the boiler system.
  • one end of the water discharge system is connected to the main pipeline of the water supply system, and the other end is connected to the drainage trough of the unit.
  • the temporary thermal power station boiler water pressure test system of the present invention sends desalted water into various systems of the boiler through the water supply system, and performs a pressure test on the boiler system through the booster system to complete the test;
  • the temporary thermal power station boiler water pressure test system of the present invention can safely and smoothly complete the boiler water pressure test of the power station when the chemical water treatment system of the power station is not put into operation and cannot produce qualified desalted water, thereby promoting the progress of the overall project and avoiding the cost waste of idle personnel and idle machinery caused by stagnation of production processes.
  • Fig. 1 is a schematic diagram of the structure of the present invention
  • Figure 2 is a schematic diagram of the structure of the air pressure system
  • FIG. 3 is a schematic diagram of the water supply system structure
  • FIG4 is a schematic diagram of the boost system structure
  • Figure 5 is a schematic diagram of the specific structure of A
  • Figure 6 is a schematic diagram of the water discharge system structure.
  • 1-air pressure system 2-boiler system, 3-water supply system, 4-deionized water tank, 5-main pipeline, 6-water supply tank, 7-branch pipeline, 8-deionized water pump, 9-normal water supply booster pump, 10-water wall lower header periodic sewage electric valve, 11-boosting system, 12-temporary system pressure monitoring system, 13-boosting pipeline, 14-water supply recirculation pipeline, 15-three-plunger booster pump, 16-drainage system, 17-boiler system pressure monitoring system.
  • the existing conventional boiler water pressure test work can only be carried out after the power plant chemical water treatment system is put into operation and produces qualified water. However, the progress of each system may also lag behind during construction. If the conventional boiler water pressure test method is adopted, it can only be carried out after the other systems are improved, which will cause process stagnation, personnel idleness, machinery idleness and other serious impacts on progress and cost.
  • this embodiment provides a temporary thermal power station boiler water pressure test system, which includes an air pressure system 1, a water supply system 3, a booster system 11, a water discharge system 16 and a pressure monitoring system.
  • the pumps, pipelines, supports, hangers, water tanks and other equipment and facilities designed in this system should all be implemented in accordance with the requirements of formal installation.
  • the air pressure system 1 is a temporary system for supplying compressed air to the boiler system 2, and is a temporary system for pre-inspecting the boiler before completing the boiler water pressure test.
  • the boiler air pressure system 1 is installed with a route connected to the air compressor arranged at the bottom of the furnace, and connected to the acid cleaning valve of the lower header of the boiler water-cooled wall through a temporary air intake pipe; the tightness of the boiler system 2 is tested by delivering compressed air to the boiler.
  • the water supply system 3 includes a demineralized water tank 4 , which is connected to the boiler system 2 through a water supply system 3 pipeline and is used to prepare and mix water for the boiler hydraulic pressure test and to supply water to the boiler.
  • the pipeline of the water supply system 3 includes a main pipeline 5 and two branch pipelines 7.
  • the main pipeline 5 is provided with a desalted water pump 8 and a normal water replenishment booster pump 9.
  • the two branch pipelines 7 are respectively connected to the drain valves of the front and rear water-cooled wall lower headers of the boiler system 2, and the two branch pipelines 7 are provided with a water-cooled wall lower header periodic drain electric valve 10.
  • Qualified water flows from the desalted water tank 4 through the desalted water pump 8 to the normal water supply booster pump 9 and then to the water supply main gate, reaching the boiler area and connecting the water supply pipeline to supply water to the boiler.
  • the temporary water supply pipeline is divided into two ways through a tee, and is connected to the regular sewage electric valve 10 of the lower header of the front and rear water-cooled walls of the boiler.
  • the boosting system 11 includes a water supply tank 6, which is connected to the desalted water tank 4; the water supply tank 6 is connected to the boiler system 2 through a water supply tank 6 pipeline to complete the boosting work of the boiler system 2.
  • the water supply tank 6 pipeline includes a booster pipe 13 and a water supply recirculation pipe 14 connected between the booster pipe 13 and the water supply tank 6.
  • a boiler water pressure test booster pump is provided on the booster pipe 13.
  • the boiler water pressure test booster pump is a three-plunger booster pump 15.
  • one end of the water discharge system 16 is connected to the main pipe 5 of the water supply system 3, and the other end is connected to the unit drain tank.
  • the water supply pump valve is closed and the drain valve of the water discharge system 16 is opened.
  • the pressure monitoring system includes a temporary system pressure monitoring system 12 connected to the booster pipe 13 and a boiler system pressure monitoring system 17 connected to the boiler system 2 .
  • the boiler system 2 pressure monitoring system is connected to the boiler system 2. After the make-up water tank 6 is filled with desalted water, the booster system 11 is operated to perform a water pressure test on the boiler system 2. During the test, the make-up water tank 6 should be kept full of water and the temporary system pressure monitoring system and the boiler system 2 pressure monitoring system should be monitored at all times to ensure that the water pressure test of the boiler system 2 is completed safely and smoothly.
  • the system within the boiler water pressure range shall be tested with a 0.2-0.3MPa air pressure test at the same time, and the air pressure system 1 shall be pre-checked.
  • the rated pressure of the air compressor configured on site can provide compressed air with a pressure of about 0.6MPa, which can ensure the pressure required for the boiler system 2 air pressure test;
  • the inspection method is as follows:
  • the boiler water filling process can be prepared only after the boiler air pressure test is completed and all defects are eliminated. Before filling the water, the deflection of the large plate beam and the expansion indicator readings should be measured and recorded;
  • the boiler system 2 pressure monitoring system is installed at the local pressure gauge position at both ends of the drum and monitored by a dedicated person.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

一种临时火力发电站锅炉水压试验***，属于锅炉技术领域，包括：气压***（1），其与锅炉***（2）连接，用于向锅炉输送压缩空气；上水***（3），其包括除盐水箱（4），除盐水箱（4）与锅炉***（2）通过上水***管道（5）连接，用于完成锅炉***（2）的上水工作；升压***（11），其包括补水箱（6），补水箱（6）与锅炉***（2）通过补水箱管道连接，用于完成锅炉***（2）的升压工作。该临时火力发电站锅炉水压试验***，将外部贮存的合格除盐水输送至锅炉***（2）并满足水压试验条件，避免了工序滞后带来的进度停滞，进而节约了时间和成本。

Description

一种临时火力发电站锅炉水压试验*** 技术领域
本发明涉及锅炉技术领域，特别是涉及一种临时火力发电站锅炉水压试验***。
 背景技术
在火力发电站锅炉的施工作业中，锅炉水压试验是在冷态情况下，对锅炉本体安装是否达到行业规范标准的重要检验方式，该试验的结果都直接决定着后续锅炉工作的开展和发电站的商业运行阶段的稳定性。当前发电站常规的锅炉水压试验，都是在发电站自身配置的化学水处理***满足运行条件、产出合格除盐水及锅炉用水输送管道完成联络后才可以进行。
由于发电站锅炉、化学水处理***和输送管道等作业内容，往往各自由不同的施工方负责，这就会出现进度互相不满足的情况；一些项目受“新冠疫情”等各种因素的影响，化学水处理***出现施工滞后，导致无法采用常规的锅炉水压试验方法，进而影响电站下一步施工进度，并且产生人员窝工和机械闲置等成本浪费。
 发明内容
为了解决上述现有技术中的不足，本发明的目的是提供一种临时火力发电站锅炉水压试验***，在产出合格除盐水的前提下，将外部贮存的合格除盐水输送至锅炉***并满足水压试验条件，避免了工序滞后带来的进度停滞，进而节约了时间和成本。
本发明解决其技术问题所采用的技术方案为：
提供了一种临时火力发电站锅炉水压试验***，包括：气压***，其与锅炉***连接，用于向锅炉输送压缩空气；上水***，其包括除盐水箱，所述除盐水箱与锅炉***通过上水***管道连接，用于完成锅炉***的上水工作；升压***，其包括补水箱，所述补水箱与锅炉***通过补水箱管道连接，用于完成锅炉***的升压工作。
进一步的，还包括压力监测***。
进一步的，还包括放水***，所述放水***连接在上水***的母管上，用于将锅炉***中的水放出。
进一步的，所述气压***的一端与锅炉***的锅炉水冷壁下集箱酸洗阀门连接，另一端与空压机连接。
进一步的，所述上水***管道包括母管道及两分管道，所述母管道上设有除盐水泵及正常补水升压泵，两所述分管道分别与锅炉***的前后水冷壁下集箱的排污阀连接，且两分管道上均设有水冷壁下集箱定期排污电动阀。
进一步的，所所述补水箱与除盐水箱连接。
进一步的，所述补水箱管路包括升压管道及连接在升压管道与补水箱之间的补水再循环管道。
进一步的，所述升压管道上设有锅炉水压试验升压泵。
进一步的，所述压力监测***包括连接在升压管道上的临时***压力监测***及连接在锅炉***上的锅炉***压力监测***。
进一步的，所述放水***一端连接在上水***的母管道上，另一端连接机组排水槽。
本发明的有益效果
1、本发明示例的临时火力发电站锅炉水压试验***，通过上水***，将除盐水送入锅炉各***，并通过升压***对锅炉***进行压力试验，完成测试；
2、本发明示例的临时火力发电站锅炉水压试验***，通过该套***的运作，可以在发电站自备的化学水处理***未投运且无法产出合格除盐水的情况下，安全、顺利完成发电站锅炉水压试验，推动整体项目进度，避免生产工序停滞造成人员窝工、机械闲置的成本浪费。
 附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显：
图1为本发明结构示意图；
图2为气压***结构示意图；
图3为上水***结构示意图；
图4为升压***结构示意图；
图5为A处具体结构示意图；
图6为放水***结构示意图。
图中：1‑气压***，2‑锅炉***，3‑上水***，4‑除盐水箱,5‑母管道，6‑补水箱，7-分管道，8‑除盐水泵，9‑正常补水升压泵，10‑水冷壁下集箱定期排污电动阀，11‑升压***，12‑临时***压力监测***，13‑升压管道，14‑补水再循环管道，15‑三柱塞升压泵，16‑放水***，17‑锅炉***压力监测***。
 具体实施方式
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释相关发明，而非对该发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与发明相关的部分。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
现有的常规锅炉水压试验工作，都是在电站化学水处理***完成投运并产出合格水的前提下才能开展，但各***在施工中也可能出现进度滞后的情况，若采用常规锅炉水压试验的方法则只能等待其余***完善后才能进行，从而产生工序停滞、人员窝工、机械闲置等进度和成本等方面的严重影响。
如图1所示，本实施例提供了一种临时火力发电站锅炉水压试验***，其包括气压***1、上水***3、升压***11、放水***16及压力监测***。本***内设计泵、管道、支吊架、水箱等设备设施，均应按正式安装的要求执行。
具体的，所述气压***1是向锅炉***2进压缩空气的临时***，它是完成锅炉水压试验前对锅炉预检的临时***。
如图2所示，锅炉气压***1安装一路由布置在炉底的空压机接出，通过临时进气管道连接到锅炉水冷壁下集箱酸洗阀门后；通过向锅炉输送压缩空气，检验锅炉***2的严密性。
如图3所示，所述上水***3包括除盐水箱4，所述除盐水箱4与锅炉***2通过上水***3管道连接，用于完成锅炉水压试验用水的配制、搅拌和锅炉的上水工作。
所述上水***3管道包括母管道5及两分管道7，所述母管道5上设有除盐水泵8及正常补水升压泵9，两所述分管道7分别与锅炉***2的前后水冷壁下集箱的排污阀连接，且两分管道7上均设有水冷壁下集箱定期排污电动阀10。
合格水自除盐水箱4经除盐水泵8到正常补水升压泵9后补水总门处，到达锅炉区域，连接上水管路对锅炉进行上水。上水临时管道经三通分两路上水，分别接：锅炉前、后水冷壁下集箱定期排污电动阀10后。
如图4‑5所示，所述升压***11包括补水箱6，所述补水箱6与除盐水箱4连接；所述补水箱6与锅炉***2通过补水箱6管道连接，用于完成锅炉***2的升压工作。
所述补水箱6管路包括升压管道13及连接在升压管道13与补水箱6之间的补水再循环管道14，所述升压管道13上设有锅炉水压试验升压泵。本实施例中，所述锅炉水压试验升压泵为三柱塞升压泵15。
如图6所示，所述放水***16一端连接在上水***3的母管道5上，另一端连接机组排水槽。待锅炉水压试验完毕或需要对***放水时，关闭上水泵阀门，打开放水***16放水阀。
所述压力监测***包括连接在升压管道13上的临时***压力监测***12及连接在锅炉***2上的锅炉***压力监测***17。
所述锅炉***2压力监测***与所述锅炉***2连接，将补水箱6注满除盐水后，运行升压***11对锅炉***2进行水压试验，期间应持续保持补水箱6为满水状态并时刻监视临时***压力监视***和锅炉***2压力监视***，以保证锅炉***2水压试验安全、顺利完成。
锅炉水压试验详细步骤为：
一、锅炉气压试验
1、锅炉水压水压试验前，对锅炉水压范围内***同时进行0.2～0.3MPa的气压试验，对气压***1进行预检查。现场配置的空压机额定压力可提供约0.6MPa压力的压缩空气，可保证锅炉***2气压试验所需要的压力；
2、***充气：打开锅炉气压***1进气阀门向锅炉一次汽***进气，关闭锅炉各***出水阀，启动空压机向锅炉一次汽***进行充气，待压力升至0.2～0.3MPa时，关闭空压机和进气管道上的阀门；
3、***进气完成后，组织人员对***进行检查。检查方法采用以下方式：
听：一般泄漏处有空气泄出时会发出尖嘘声；
摸：试用薄纸片放在泄漏处就会有轻微的抖动；
看：对轻微泄漏或有可能泄漏的部位在其附近用肥皂水涂沫，若泄漏则在漏处形成肥皂泡；
4、对检查出的泄漏部位应随时做好明显标记和详细的记录，同时向负责人汇报；
5、在气压试验检查结束放尽空气后安排消缺工作，消缺完毕经验收合格并办理签证；
6、所有缺陷消缺完毕，经全面检查无误，此时具备锅炉上水的条件，可以上水及水压工作。
二、锅炉***2上水
1、锅炉气压试验完成且缺陷全部消除后，方可准备锅炉上水工序。在上水前，应测量大板梁挠度和膨胀指示器读数，并做好记录；
2、除盐水箱4内上水后，按指定剂量加入联胺，通过氨水调节pH值，直至水质化验合格。在给锅炉***2上水期间不对除盐水箱4补水，当除盐水箱4内水量用完后，关闭正常补水升压泵9，重新执行除盐水箱4上水加药、取样及化验工作，直至水质合格，重新上水；[0055]3、上水时，首先打开一次汽***上所有放空气阀门，开启正常补水升压泵9及除盐水泵8对***上水。上水开始后，安排人员对整个***进行检查，若出现问题，先停止上水，待问题解决后继续上水；
上水过程中，当每一个放空气阀出水后且出水水流中无气泡后，关闭该路放空气阀门；按照此方法，直到所有放空气阀门全部关闭为止，即标志***满水；
一次汽***上满水后，关闭正常补水升压泵9及其进出水阀，所有放空气阀门以及各路疏水阀门，此时具备水压试验条件。
4、上水完成后，测量大板梁挠度和膨胀指示器数据，并做记录；
5、检查整个一次***所有吊挂装置受力情况，并做好记录。
三、锅炉水压升压试验
1、锅炉水压升压前，仔细检查各***及阀门包括放空气阀门、疏水阀门、取样阀门、临时***阀门等有无泄漏及异常情况，若***完好无误可以对***进行升压。同时对受热面壁温进行测量，若符合要求，可以进行下一步水压升压试验；
2、经检查各方面合格后，先开三柱塞升压泵15出水阀，再开三柱塞升压泵15，然后打开补水箱6进水阀，调整三柱塞升压泵15出水阀，使***升压速度控制在0.3Mpa/min范围内。
将锅炉***2压力监测***安装在汽包两端的就地压力表位置，并专人监视。
当***压力达到试验压力的10％，即1.695Mpa时，停泵关闭三柱塞升压泵15出水阀11，对整个***进行初步检查，若无泄漏和异常现象，则继续升压；若有明显漏点，则处理好后再继续升压。
当***压力达到工作压力时，停泵关闭三柱塞升压泵15出水阀，对***进行全面检查，对发现的缺陷及泄漏情况作好明显标记和详细的记录，并及时向负责人汇报；若无泄漏和异常现象，则继续升压。
检查期间，由水压试验总指挥与技术专工、分包技术负责人、班组人员共同对***进行仔细检查，并通过对讲机及时联络，报告检查区域的情况。
在试验压力下保持20min后，按照0.1MPa/min速度将***压力降压至工作压力，对***进行一次验收性全面检查，检查期间压力应保持不变。水压试验合格的标准是：
1、受压元件金属壁和焊缝无泄漏及湿润现象；
2、受压元件没有明显的残余变形。
若检查期间发现问题，则做好明显标记和详细记录，并及时上报负责人以便作出处理方案。
本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (10)

  1. 一种临时火力发电站锅炉水压试验***，其特征在于，包括：气压***(1)，其与锅炉***(2)连接，用于向锅炉输送压缩空气；
    上水***(3)，其包括除盐水箱(4)，所述除盐水箱(4)与锅炉***(2)通过上水***(3)管道连接，用于完成锅炉***(2)的上水工作；
    升压***(11)，其包括补水箱(6)，所述补水箱(6)与锅炉***(2)通过补水箱(6)管道连接，用于完成锅炉***(2)的升压工作。
  2. 根据权利要求1所述的临时火力发电站锅炉水压试验***，其特征在于，还包括压力监测***。
  3. 根据权利要求1所述的临时火力发电站锅炉水压试验***，其特征在于，还包括放水***(16)，所述放水***(16)连接在上水***(3)的母管上，用于将锅炉***(2)中的水放出。
  4. 根据权利要求1所述的临时火力发电站锅炉水压试验***，其特征在于，所述气压***(1)的一端与锅炉***(2)的锅炉水冷壁下集箱酸洗阀门连接，另一端与空压机连接。
  5. 根据权利要求3所述的临时火力发电站锅炉水压试验***，其特征在于，所述上水***(3)管道包括母管道(5)及两分管道(7)，所述母管道(5)上设有除盐水泵(8)及正常补水升压泵(9)，两所述分管道(7)分别与锅炉***(2)的前后水冷壁下集箱的排污阀连接，且两分管道(7)上均设有水冷壁下集箱定期排污电动阀(10)。
  6. 根据权利要求2所述的临时火力发电站锅炉水压试验***，其特征在于，所述补水箱(6)与除盐水箱(4)连接。
  7. 根据权利要求6所述的临时火力发电站锅炉水压试验***，其特征在于，所述补水箱(6)管路包括升压管道(13)及连接在升压管道(13)与补水箱(6)之间的补水再循环管道(14)。
  8. 根据权利要求7所述的临时火力发电站锅炉水压试验***，其特征在于，所述升压管道(13)上设有锅炉水压试验升压泵。
  9. 根据权利要求7所述的临时火力发电站锅炉水压试验***，其特征在于，所述压力监测***包括连接在升压管道(13)上的临时***压力监测***(12)及连接在锅炉***(2)上的锅炉***压力监测***(17)。
  10. 根据权利要求5所述的临时火力发电站锅炉水压试验***，其特征在于，所述放水***(16)一端连接在上水***(3)的母管道(5)上，另一端连接机组排水槽。
PCT/CN2023/123122 2022-10-19 2023-10-07 一种临时火力发电站锅炉水压试验*** WO2024082961A1 (zh)

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