CN207161247U - The device of natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine - Google Patents

The device of natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine Download PDF

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Publication number
CN207161247U
CN207161247U CN201721173080.6U CN201721173080U CN207161247U CN 207161247 U CN207161247 U CN 207161247U CN 201721173080 U CN201721173080 U CN 201721173080U CN 207161247 U CN207161247 U CN 207161247U
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China
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amine liquid
valve
liquid pump
hydraulic turbine
poor amine
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CN201721173080.6U
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Inventor
郑忠英
寇伟伟
王培�
李翠
李占越
杨立雨
王庆楠
李伟
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Xindi Energy Engineering Technology Co Ltd
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Xindi Energy Engineering Technology Co Ltd
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Abstract

It the utility model is related to a kind of device that natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine, direct-connected poor amine liquid pump is driven to be pressurized for poor amine liquid using hydraulic turbine, it includes the direct-connected poor amine liquid pump of a hydraulic turbine, a turbine, the poor amine liquid pump of a series connection, standby a poor amine liquid pump and seven deck valve doors.Device of the present utility model, hydraulic turbine and is only passed through shaft coupling direct connection between transfer tube, energy recovery efficiency is high;Configure relatively easy, unit reliability is good, continuous cycle of operation length, improves the economic benefit of enterprise, meets energy-saving requirement.

Description

The device of natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine
Technical field
It the utility model is related to a kind of device that natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine, and in particular to The device that a kind of hydraulic turbine direct drive lean pump recovers energy.
Background technology
With the continuous renewal of natural gas deacidification process in recent years, the continuous improvement of enterprise management level, Yi Jiguo Family is more and more extensive to energy-saving requirement, the application of highly pressurised liquid energy recycle device.
The unit that hydraulic turbine recovers energy has three kinds of configuration modes:Hydraulic turbine stand-by motor does work, and hydraulic turbine is straight Connect transfer tube and hydraulic turbine direct drive generator.The configuration mode of hydraulic turbine stand-by motor acting is to system performance parameter Change strong adaptability, compact arrangement of equipment, floor space is small, and its shortcoming is that installation accuracy requires higher, and pipeline arrangement is complicated.Water The configuration mode of power turbine direct drive generator, the so-called dual drive of generally use, i.e., when hydraulic turbine recovery power not It is enough during transfer tube (existing natural gas deacidifying process, the power of hydraulic turbine recovery are to be not enough to drive lean pump), to increase If process auxiliary drive machine, and it is that the power of hydraulic turbine recovery can only mitigate load of the motor less than 20% the defects of dual drive;And Because main driving machine is chosen by total power, main driving machine will be run at low load for a long time, and efficiency is low, motor actual consumption Power will be very big.The utility model proposes a kind of process unit of hydraulic turbine direct-driven pump, problem above can be overcome.
Utility model content
It the utility model is related to a kind of device that natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine, and in particular to It is a kind of to utilize the device that the direct-connected poor amine liquid pump of hydraulic turbine is the supercharging of poor amine liquid.It includes:One hydraulic turbine, a turbine are straight Even poor amine liquid pump, the poor amine liquid pump of a series connection, standby poor amine liquid pump, a seven deck valve doors;
Rich amine liquid pipeline from natural gas depickling absorption tower is divided into two-way, is sequentially connected valve one, hydraulic turbine all the way Afterwards, connecting valve two, the outlet of valve two are connected to amine liquid regenerative system;Another way connecting valve three, the export pipeline of valve three Outlet with valve two converges, and connects amine liquid regenerative system;
Poor amine liquid pipeline from amine liquid regenerative system is connected to the entrance for poor amine liquid pump of connecting, and poor amine liquid pump of connecting goes out Mouth is divided into two-way, is sequentially connected the direct-connected poor amine liquid pump of valve four, turbine, valve five all the way, the outlet of valve five connects through pipeline To depickling absorption tower;Another way is sequentially connected valve six, standby poor amine liquid pump, valve seven, is then attached to the outlet of valve five.
Further, it is joined directly together between hydraulic turbine and direct-connected poor amine liquid pump by shaft coupling.
The technological process that device described in the utility model uses for:
Rich amine solution from depickling absorption tower enters hydraulic turbine, reclaims the pressure energy of high pressure rich solution, the rich amine after decompression Liquid sends to amine liquid regenerative system;The flow of hydraulic turbine is adjusted by valve one, hydraulic turbine flow is kept stable, really Moisture holding capacity operating turbine is steady;The liquid level on depickling absorption tower is adjusted by valve three, according to depickling absorption tower bottom liquid level Lifting automatically adjusts valve aperture;Hydraulic turbine connects the direct-connected poor amine liquid pump of a turbine, and the pressure energy of recovery is converted to The mechanical energy of the straight poor amine liquid pump of company, it is pressurized for poor amine liquid pump;
When hydraulic turbine overhauls, cutting-off valve one and valve two, it is depressured by valve three for rich amine solution, and maintain depickling to inhale Receive bottom of towe level stability;
The lean solution for completing regeneration initially enters the poor amine liquid pump supercharging of series connection, is then pressurized to again through the direct-connected poor amine liquid pump of turbine Depickling absorption tower enters pressure tower;When hydraulic turbine and the direct-connected poor amine liquid pump of turbine overhaul, cutting-off valve four and valve five, open Valve six and valve seven, standby poor amine liquid pump are devoted oneself to work, and are concatenated the poor amine liquid after poor amine liquid pump supercharging and are entered standby poor amine Liquid pump is further pressurized.
The advantages of the utility model:
1st, the requirement of national energy-saving consumption reduction is met;
2nd, hydraulic turbine and by, only by shaft coupling direct connection, centre is without stand-by motor, its energy recovery efficiency between transfer tube It is high;
3rd, configuration is relatively easy, and unit reliability is good, can guarantee that continuous operation at least 1 year is not interrupted.
Brief description of the drawings
Fig. 1 is technique installation diagram of the present utility model.
Wherein, T1, hydraulic turbine P1, the poor amine liquid pump P2 of series connection, the direct-connected poor amine liquid pump P3 of turbine, standby poor amine liquid pump V-1, the V-2 of valve one, the V-3 of valve two, the V-4 of valve three, the V-5 of valve four, the V-6 of valve five, the V-7 of valve six, valve seven.
Embodiment
The utility model is further illustrated below in conjunction with accompanying drawing, it should be appreciated, however, that the following description is only used for showing The purpose of example, is not formed to any restrictions of the present utility model.
As shown in figure 1, the utility model provides a kind of dress that natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine Put, it is specifically a kind of to be included using the device that the direct-connected poor amine liquid pump of hydraulic turbine is the supercharging of poor amine liquid, the device:One waterpower is saturating The direct-connected poor amine liquid pump P2 of flat T1, a turbine, the poor amine liquid pump P1 of a series connection, standby poor amine liquid pump P3, a seven deck valve door V-1 ~V-7;
Rich amine liquid pipeline from natural gas depickling absorption tower is divided into two-way, and it is saturating to be sequentially connected the V-1 of valve one, waterpower all the way After flat T1, the V-2 of connecting valve two, the V-2 of valve two outlet are connected to amine liquid regenerative system;The V-3 of another way connecting valve three, valve Three V-3 export pipelines of door converge to the V-2 of valve two outlet;
Poor amine liquid pipeline from amine liquid regenerative system is connected to the entrance for the poor amine liquid pump P1 that connects, and connect poor amine liquid pump P1 Outlet be divided into two-way, be sequentially connected the direct-connected poor amine liquid pump P2 of the V-4 of valve four, turbine, the V-5 of valve five all the way, the V-5's of valve five Outlet is connected to depickling absorption tower through pipeline;Another way is sequentially connected the V-6 of valve six, standby poor amine liquid pump P3, the V-7 of valve seven, It is then attached to the V-5 of valve five outlet.
It can be joined directly together between hydraulic turbine and direct-connected poor amine liquid pump by shaft coupling.
The technological process that device described in the utility model uses for:
Rich amine solution from depickling absorption tower enters hydraulic turbine T1, reclaims the pressure energy of high pressure rich solution, the richness after decompression Amine liquid sends to amine liquid regenerative system;Hydraulic turbine T1 flow is adjusted by the V-1 of valve one, protects hydraulic turbine T1 flows It is fixed to keep steady, it is ensured that hydraulic turbine T1 operates steadily;The liquid level on depickling absorption tower is adjusted by the V-3 of valve three, according to depickling The lifting of absorption tower bottom liquid level automatically adjusts valve aperture;The direct-connected poor amine liquid pump P2 of one turbine of hydraulic turbine T1 connections, it will return The pressure energy of receipts is converted to the direct-connected poor amine liquid pump P2 of turbine mechanical energy, is pressurized for poor amine liquid pump P2;
When hydraulic turbine T1 is overhauled, the V-1 of cutting-off valve one and the V-2 of valve two, it is depressured by the V-3 of valve three for rich amine solution, And maintain depickling absorption tower bottom level stability;
The lean solution for completing regeneration initially enters the poor amine liquid pump P1 superchargings of series connection, then increases again through the direct-connected poor amine liquid pump P2 of turbine It is depressed into depickling absorption tower and enters pressure tower;As hydraulic turbine T1 and the direct-connected poor amine liquid pump P2 maintenance of turbine, the V-4 of cutting-off valve four and The V-5 of valve five, the V-6 of valve six and valve seven V-7 is opened, standby poor amine liquid pump P3 devotes oneself to work, and is concatenated poor amine liquid pump P1 and increases Poor amine liquid after pressure is further pressurized into standby poor amine liquid pump P3.

Claims (2)

1. a kind of device that natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine, it is characterised in that it includes:One water The direct-connected poor amine liquid pump of power turbine, a turbine, the poor amine liquid pump of a series connection, standby poor amine liquid pump, a seven deck valve doors;
Rich amine liquid pipeline from natural gas depickling absorption tower is divided into two-way, after being sequentially connected valve one, hydraulic turbine all the way, even Valve two is connect, the outlet of valve two is connected to amine liquid regenerative system;Another way connecting valve three, the export pipeline of valve three and valve Two outlet converges, and connects amine liquid regenerative system;
Poor amine liquid pipeline from amine liquid regenerative system is connected to the entrance for poor amine liquid pump of connecting, the outlet point for poor amine liquid pump of connecting For two-way, the direct-connected poor amine liquid pump of valve four, turbine, valve five are sequentially connected all the way, the outlet of valve five is connected to de- through pipeline Acid absorption column;Another way is sequentially connected valve six, standby poor amine liquid pump, valve seven, is then attached to the outlet of valve five.
2. the device according to claim 1 that natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine, its feature are existed In being joined directly together between hydraulic turbine and direct-connected poor amine liquid pump by shaft coupling.
CN201721173080.6U 2017-09-13 2017-09-13 The device of natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine Active CN207161247U (en)

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CN201721173080.6U CN207161247U (en) 2017-09-13 2017-09-13 The device of natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine

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CN201721173080.6U CN207161247U (en) 2017-09-13 2017-09-13 The device of natural gas decarbonization rich solution pressure energy is reclaimed using hydraulic turbine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112159695A (en) * 2020-10-28 2021-01-01 新地能源工程技术有限公司 Energy-saving natural gas MDEA decarburization device and method
CN114558450A (en) * 2022-03-16 2022-05-31 杭州蕴泽环境科技有限公司 Ship desulfurization system with energy recovery function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112159695A (en) * 2020-10-28 2021-01-01 新地能源工程技术有限公司 Energy-saving natural gas MDEA decarburization device and method
CN114558450A (en) * 2022-03-16 2022-05-31 杭州蕴泽环境科技有限公司 Ship desulfurization system with energy recovery function

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