WO2023024328A1 - 一种二次蒸汽增压系统 - Google Patents

一种二次蒸汽增压系统 Download PDF

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Publication number
WO2023024328A1
WO2023024328A1 PCT/CN2021/137025 CN2021137025W WO2023024328A1 WO 2023024328 A1 WO2023024328 A1 WO 2023024328A1 CN 2021137025 W CN2021137025 W CN 2021137025W WO 2023024328 A1 WO2023024328 A1 WO 2023024328A1
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Prior art keywords
steam
drain tank
pipeline
pipe
supercharger
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PCT/CN2021/137025
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English (en)
French (fr)
Inventor
王恒
翟文恒
李桂刚
陈京舜
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青岛新奥能源有限公司
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Publication of WO2023024328A1 publication Critical patent/WO2023024328A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/065—Arrangements for producing propulsion of gases or vapours
    • F17D1/07—Arrangements for producing propulsion of gases or vapours by compression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product

Definitions

  • the utility model relates to the technical field of steam pipeline equipment, in particular to a secondary steam pressurization system.
  • the utility model provides a secondary steam pressurization system, and the specific technical scheme is as follows.
  • a secondary steam pressurization system comprising a steam pipeline, a drain tank, a supercharger and a steam trap, the steam pipeline is connected with a steam trap, and the steam trap is connected to the drain tank; the bottom of the drain tank is provided with a drain pipe , the condensed water accumulates at the bottom of the drain tank, and the secondary steam accumulates at the top of the drain tank; the top of the drain tank is provided with a low-temperature steam pipeline, and the low-temperature steam pipeline is connected with a supercharger; the supercharger heats and pressurizes two Secondary steam, the output pipe of the supercharger is connected with the steam pipeline.
  • the steam trap is connected to the lower pipe edge of the steam pipe, and the output pipe of the supercharger is connected to the upper pipe edge of the steam pipe.
  • the outer periphery of the steam pipe is wrapped with an insulation layer.
  • the steam trap is connected to the steam pipe through a first connection port
  • the output pipe is connected to the steam pipe through a second connection port
  • the first connection port is arranged downstream of the second connection port
  • a temperature gauge and a pressure gauge are set on the steam pipeline, and a temperature gauge and a pressure gauge are also set on the pipeline upstream and downstream of the supercharger.
  • the temperature gauge and the pressure gauge are linked with the controller of the supercharger.
  • an automatic discharge valve is arranged on the drain tank at the bottom of the drain tank, and a water level sensor is also arranged in the drain tank.
  • the beneficial effect of the secondary steam pressurization system provided by the utility model is that the secondary steam is drawn out through the pipeline on the top of the drain tank and compressed by a steam compressor, and the secondary steam is boosted and heated to replenish the original steam
  • the pipeline makes full use of the secondary steam in the drain tank, and the condensed water is drained and recycled for secondary use; in addition, the pressure and temperature of the supercharger are controlled to prevent excessive condensed water due to supersaturation. After entering the main steam pipeline, the quality of the main steam will not be affected; in addition, the system also has the advantages of saving energy and reducing thermal pollution.
  • Fig. 1 is a schematic diagram of a secondary steam supercharging system
  • a secondary steam pressurization system including a steam pipeline 1, a drain tank 2, a booster 3 and a steam trap 4, the steam pipeline is used to transport high-pressure steam, the drain tank can perform drainage and condensed water recovery, and the booster can
  • the secondary steam is heated and pressurized, and the steam trap and the steam trap cooperate with each other; the system uses the supercharger to cooperate with the steam tank to realize the recovery and utilization of the secondary steam, which reduces energy consumption and reduces the environmental pollution caused by the discharge of the secondary steam .
  • the steam pipe 1 is connected with a drain valve 4, and the drain valve 4 is connected with the drain tank 2, and the drain valve 4 recovers condensed water and secondary steam in the steam pipe.
  • the bottom of the drain tank 2 is provided with a drain pipe, the condensed water accumulates at the bottom of the drain tank, and the secondary steam accumulates at the top of the drain tank 2 .
  • a low-temperature steam pipe is arranged on the top of the drain tank 2, and the low-temperature steam pipe is connected to the supercharger, and the secondary steam enters the supercharger 3 through the low-temperature steam pipe.
  • the supercharger 3 heats and pressurizes the secondary steam, and the output pipe of the supercharger is connected to the steam pipeline 1, so that the heated and pressurized steam is transported to the steam pipeline 1 without affecting the quality of the steam in the steam pipeline.
  • the drain valve 4 is connected to the edge of the lower pipe of the steam pipe 1, so as to better realize the drainage function, and the output pipe of the supercharger is connected to the edge of the upper pipe of the steam pipe to ensure that the steam is smoothly pressed into the steam pipe.
  • the steam pipe is wrapped with an insulation layer to ensure the efficiency of steam pipeline transportation.
  • the insulation layer can use polyurethane foam, benzene board, polyethylene PEF, etc.
  • the steam trap 4 is connected to the steam pipe 1 through the first connection port 6, and the output pipe and the steam pipe are connected through the second connection port 7.
  • the first connection port 6 is arranged downstream of the second connection port 7, so as to ensure The quality and pressure of the steam are stable.
  • the steam pipeline 1 is provided with a temperature gauge and a pressure gauge, and the upstream and downstream pipelines of the supercharger 3 are also provided with a temperature gauge and a pressure gauge; the reading signals of the temperature gauge and the pressure gauge are transmitted to the controller of the supercharger.
  • the temperature gauge and pressure gauge are linked with the controller of the supercharger. According to the display of the temperature gauge and pressure gauge, the supercharger 3 controls its working state and adjusts it appropriately according to the temperature and pressure of the secondary steam and steam pipeline.
  • the drain tank at the bottom of the drain tank 2 is equipped with an automatic discharge valve to facilitate the discharge of condensed water.
  • a water level sensor is also installed in the drain tank 2. The condensed water in the drain tank 2 always maintains a certain water temperature to realize the water seal at the position of the drain pipe. .
  • the system draws out the secondary steam through the pipeline on the top of the drain tank, and compresses it through a steam compressor. After the secondary steam is boosted and heated, it is replenished into the original steam pipeline, making full use of the secondary steam in the drain tank, condensed water Hydrophobic recovery for secondary use; In addition, the pressure and temperature of the supercharger are controlled to prevent excessive condensed water due to supersaturation. After the secondary steam is pressurized and enters the main steam pipeline, the quality of the main steam will not be affected; in addition, the system also It has the advantages of saving energy consumption and reducing thermal pollution.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

一种二次蒸汽增压系统，涉及蒸汽管道设备技术领域。该系统包括蒸汽管道(1)、疏水罐(2)、增压机(3)和疏水阀(4)，蒸汽管道(1)上连接有疏水阀(4)，疏水阀(4)和疏水罐(2)相连，疏水罐的(2)底部设置有疏水管(5)。冷凝水积聚在疏水罐(2)的底部，疏水罐(2)的顶部产生低温二次蒸汽，疏水罐(2)的顶部设置低温蒸汽管道，低温蒸汽管道和增压机(3)相连，增压机(3)对二次蒸汽进行加热、加压，增压机(3)的输出管和蒸汽管道(1)相连，补充蒸汽管道内的高温蒸汽。该系统配合疏水罐实现了二次蒸汽的回收利用，减少了热污染，降低了能耗。

Description

一种二次蒸汽增压系统 技术领域
本实用新型涉及蒸汽管道设备技术领域，尤其是一种二次蒸汽增压系统。
 背景技术
工业蒸汽用户在排出带压冷凝水过程中，因为压力下将，冷凝水会到环境压力下再次蒸发，从而产生二次蒸汽，而往往这些蒸汽被排放到大气中浪费掉热能。
现有技术中锅炉产生蒸汽，其冷凝水排放压力一般在0.8Mpa，冷凝水的温度为175℃，此时1吨冷凝水大约产生的二次蒸汽为0.125蒸吨，目前这些二次蒸汽一般是直接进行排放，这样不但浪费了能源，还对环境也造成了热污染，为此需要对现有的蒸汽管道设备做进一步的改进。
 技术解决方案
为了实现二次蒸汽的回收利用，减少热污染，降低能耗，本实用新型提供了一种二次蒸汽增压系统，具体技术方案如下。
一种二次蒸汽增压系统，包括蒸汽管道、疏水罐、增压机和疏水阀，所述蒸汽管道上连接有疏水阀，疏水阀和疏水罐相连；所述疏水罐的底部设置有疏水管，冷凝水积聚在疏水罐的底部，二次蒸汽积聚在疏水罐的顶部；所述疏水罐的顶部设置低温蒸汽管道，低温蒸汽管道和增压机相连；所述增压机加热、加压二次蒸汽，增压机的输出管和蒸汽管道相连。
优选的是，疏水阀和蒸汽管道的下管道边缘相连，所述增压机的输出管和蒸汽管道的上管道边缘相连。
优选的是，蒸汽管道的外围包裹有保温层。
还优选的是，疏水阀和蒸汽管道之间通过第一连接口相连，所述输出管和蒸汽管道之间通过第二连接口相连，第一连接口设置在第二连接口的下游。
还优选的是，蒸汽管道上设置有温度表和压力表，所述增压机上下游的管道上也设置有温度表和压力表。
进一步优选的是，温度表、压力表与增压机的控制器联动。
进一步优选的是，疏水罐底部的疏水罐上设置有自动排放阀，疏水罐内还设置有水位传感器。
 有益效果
本实用新型提供的一种二次蒸汽增压系统有益效果是，通过疏水罐顶部的管道将二次蒸汽引出，并经过蒸汽压缩机进行压缩，二次蒸汽升压、升温后重新补充进原蒸汽管道，充分利用了疏水罐内的二次蒸汽，凝结水疏水回收二次利用；另外对增压机增压后的压力及温度控制，防止因过饱和过多凝结水，二次蒸汽增压后进入主蒸汽管道后不影响主蒸汽品质；另外该系统还具有节约能耗降低热污染的优点。
 附图说明
图1是一种二次蒸汽增压系统的示意图；
图中：1-蒸汽管道，2-疏水罐，3-增压机，4-疏水阀，5-疏水管，6-第一连接口，7-第二连接口，8-保温层。
 本发明的实施方式
结合图1所示，对本实用新型提供的一种二次蒸汽增压系统具体实施方式进行说明。
一种二次蒸汽增压系统，包括蒸汽管道1、疏水罐2、增压机3和疏水阀4，蒸汽管道用于输送高压蒸汽，疏水罐可以进行疏水和冷凝水的回收，增压机能够加热并增压二次蒸汽，疏水阀和疏水罐相互配合；该系统利用增压机配合疏水罐实现了二次蒸汽的回收利用，降低了能耗，减少了排放二次蒸汽带来的环境污染。
蒸汽管道1上连接有疏水阀4，疏水阀4和疏水罐2相连，疏水阀4回收蒸汽管道中的冷凝水和二次蒸汽。疏水罐2的底部设置有疏水管，冷凝水积聚在疏水罐的底部，二次蒸汽积聚在疏水罐2的顶部。疏水罐2的顶部设置低温蒸汽管道，低温蒸汽管道和增压机相连，二次蒸汽通过低温蒸汽管道进入增压机3。增压机3加热、加压二次蒸汽，增压机的输出管和蒸汽管道1相连，将加热增压后的蒸汽输送至蒸汽管道1不会影响蒸汽管道内蒸汽的品质。
疏水阀4和蒸汽管道1的下管道边缘相连，从而更好的实现疏水功能，增压机的输出管和蒸汽管道的上管道边缘相连，保证蒸汽顺利压入蒸汽管道。蒸汽管道的外围包裹有保温层，保证蒸汽管道输送的效率，保温层可以使用聚氨酯泡沫、苯板、聚乙烯PEF等。疏水阀4和蒸汽管道1之间通过第一连接口6相连，输出管和蒸汽管道之间通过第二连接口7相连，第一连接口6设置在第二连接口7的下游，从而可以保证蒸汽的品质和压力稳定。
蒸汽管道1上设置有温度表和压力表，增压机3上下游的管道上也设置有温度表和压力表；温度表和压力表的读数信号传输至增压机的控制器。温度表、压力表与增压机的控制器联动，根据温度表和压力表显示，增压机3控制其工作状态，根据二次蒸汽和蒸汽管道的温度和压力适当调整。
疏水罐2底部的疏水罐上设置有自动排放阀，方便冷凝水的排放，疏水罐2内还设置有水位传感器，疏水罐2内的凝结水始终保持一定的水温，实现疏水管位置的水封。
该系统通过疏水罐顶部的管道将二次蒸汽引出，并经过蒸汽压缩机进行压缩，二次蒸汽升压、升温后重新补充进原蒸汽管道，充分利用了疏水罐内的二次蒸汽，凝结水疏水回收二次利用；另外对增压机增压后的压力及温度控制，防止因过饱和过多凝结水，二次蒸汽增压后进入主蒸汽管道后不影响主蒸汽品质；另外该系统还具有节约能耗降低热污染的优点。
当然，上述说明并非是对本实用新型的限制，本实用新型也并不仅限于上述举例，本技术领域的技术人员在本实用新型的实质范围内所做出的变化、改型、添加或替换，也应属于本实用新型的保护范围。

Claims (7)

  1. 一种二次蒸汽增压系统，其特征在于，包括蒸汽管道、疏水罐、增压机和疏水阀，所述蒸汽管道上连接有疏水阀，疏水阀和疏水罐相连；所述疏水罐的底部设置有疏水管，冷凝水积聚在疏水罐的底部，二次蒸汽积聚在疏水罐的顶部；所述疏水罐的顶部设置低温蒸汽管道，低温蒸汽管道和增压机相连；所述增压机加热、加压二次蒸汽，增压机的输出管和蒸汽管道相连。
  2. 根据权利要求1所述的一种二次蒸汽增压系统，其特征在于，所述疏水阀和蒸汽管道的下管道边缘相连，所述增压机的输出管和蒸汽管道的上管道边缘相连。
  3. 根据权利要求1或2所述的一种二次蒸汽增压系统，其特征在于，所述蒸汽管道的外围包裹有保温层。
  4. 根据权利要求2所述的一种二次蒸汽增压系统，其特征在于，所述疏水阀和蒸汽管道之间通过第一连接口相连，所述输出管和蒸汽管道之间通过第二连接口相连，第一连接口设置在第二连接口的下游。
  5. 根据权利要求1所述的一种二次蒸汽增压系统，其特征在于，所述蒸汽管道上设置有温度表和压力表，所述增压机上下游的管道上也设置有温度表和压力表。
  6. 根据权利要求5所述的一种二次蒸汽增压系统，其特征在于，所述温度表、压力表与增压机的控制器联动。
  7. 根据权利要求1所述的一种二次蒸汽增压系统，其特征在于，所述疏水罐底部的疏水罐上设置有自动排放阀，疏水罐内还设置有水位传感器。
PCT/CN2021/137025 2021-08-24 2021-12-10 一种二次蒸汽增压系统 WO2023024328A1 (zh)

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CN210949190U (zh) * 2019-11-29 2020-07-07 重庆江增船舶重工有限公司 一种自稳定的蒸汽增压系统
CN112524487A (zh) * 2020-12-15 2021-03-19 中国石油天然气集团有限公司 一种油田大口径闪蒸气管道积液控制系统及方法

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Publication number Priority date Publication date Assignee Title
US20180299077A1 (en) * 2017-04-18 2018-10-18 Air Products And Chemicals, Inc. Control system in an industrial gas pipeline network to satisfy energy consumption constraints at production plants
CN108733012A (zh) * 2017-04-18 2018-11-02 气体产品与化学公司 工业气体管道网络中满足生产设备能耗限制的控制系统
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