WO2023116654A1 - 一种节能高效智能多级气体压缩系统 - Google Patents

一种节能高效智能多级气体压缩系统 Download PDF

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Publication number
WO2023116654A1
WO2023116654A1 PCT/CN2022/140219 CN2022140219W WO2023116654A1 WO 2023116654 A1 WO2023116654 A1 WO 2023116654A1 CN 2022140219 W CN2022140219 W CN 2022140219W WO 2023116654 A1 WO2023116654 A1 WO 2023116654A1
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stage
gas
gas compression
heat exchanger
energy
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PCT/CN2022/140219
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English (en)
French (fr)
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王勇
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江苏友诚数控科技有限公司
江苏三文特材科技有限公司
江苏新佳友诚能源科技有限公司
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Publication of WO2023116654A1 publication Critical patent/WO2023116654A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0078—Heat exchanger arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the invention relates to a gas storage device, in particular to an energy-saving, high-efficiency, intelligent multi-stage gas compression system.
  • the air compression energy storage system every time the gas is released from the gas storage tank to generate electricity, it is a process of deflation from a high pressure of about ten megapascals to a few tenths of a megapascal. The air pressure is increased from a few tenths of MPa to more than ten MPa. This process is also called gas compression energy storage process.
  • a gas multi-stage compression device In order to achieve such a high pressure, a gas multi-stage compression device is required. In the actual process, a high-power multi-stage piston compressor is mainly used to achieve it. The outlet of the first-stage compressor is connected in series with the inlet of the second-stage compressor.
  • the air outlet of the second-stage compressor is connected in series with the air inlet of the third-stage compressor, the air outlet of the third-stage compressor is connected in series with the air inlet of the fourth-stage compressor, until the air outlet of the last stage is connected to the gas storage tank, and the multi-stage compressors are connected through the same
  • the spindles are driven by the same motor. For example, take a mature domestic multi-stage high-pressure compressor with an air intake volume of 1.5m 3 /min and an air output of 15 MPa as an example. 1.3 MPa, three-stage outlet pressure 4.5-6 MPa, four-stage outlet pressure 15 MPa, four-stage series connection.
  • the problem is that all the gas that enters the gas storage tank must undergo multi-stage compression to do work in order to enter, and when the pressure in the gas storage tank is low, the entire multi-stage compression process is a lot of useless work and a lot of energy wasted.
  • a cannon is placed at the air outlet of the last stage, that is, no matter how low the air pressure in the air storage tank is, each stage of compression in the multi-stage compression is doing useless work in sequence, and a lot of energy is lost in the compression link.
  • the invention provides a multistage gas compression system with compact structure and capable of effectively reducing gas compression energy consumption.
  • the technical solution adopted in the present invention is: an energy-saving, high-efficiency, intelligent multi-stage gas compression system, including a large gas storage tank, a multi-stage gas compression group, an electric box, and a multi-stage gas compression group connection box, characterized in that: the multi-stage The outlet gas of the stage gas compression group is respectively connected to the buffer gas storage chamber corresponding to each stage through the corresponding cooling heat exchanger of each stage, and the buffer gas storage chamber corresponding to each stage is connected to the large gas storage tank through the gas circuit valve.
  • the air intake of the group is connected to the atmosphere, and the buffer gas storage chamber corresponding to the previous stage is connected to the intake air of the corresponding gas compression group of the next stage through the gas circuit switch; the cooling heat exchanger is connected to the heat storage system.
  • the gas compression group includes a closed pressure-resistant shell, a motor, and a compressor.
  • the compressor with the motor is placed in the closed pressure-resistant shell, and the inner cavity of the closed pressure-resistant shell is connected to the air intake of the compressor.
  • the motor is connected to the electrical box .
  • the buffer gas storage chambers corresponding to each stage are equipped with sensors connected to the electrical box, and the sensors are pressure sensors and/or temperature sensors.
  • heat exchanger pipelines are arranged around the gas compression group, the buffer gas storage chamber, the large gas storage tank and interconnected pipelines.
  • the heat storage system includes a heat storage tank, a heat storage pipeline, a heat exchanger, a circulation pump, and a heat storage temperature sensor. After the road is connected to the heat storage tank, it is connected back to the heat exchanger.
  • the heat exchanger or the pipeline connected to the heat exchanger is equipped with a heat storage temperature sensor.
  • cooling heat exchanger is connected to the heat storage tank in the heat storage system, or the cooling heat exchanger adopts a heat sink air-cooled structure or is connected to a heat cycle system with heat absorption and evaporation functions.
  • gas circuit switch and gas circuit valve adopt mechanical switch valves or electric switch valves controlled by an electric box.
  • a sensor connected to the electrical box is provided on the large gas storage tank, and the sensor is a pressure sensor and/or a temperature sensor.
  • the buffer air storage chamber is designed in the shape of a tank or a long tube, or a section of air pipe structure connected to a large air storage tank by means of a cooling heat exchanger.
  • the invention separates the multi-stage compression, and the electric box controls each level of independent motors to drive the compressors at each level, and the air compressed by each stage compressor is cooled and heat-exchanged and sent to the buffer air storage room, and the buffer air storage room can pass through the air circuit valve.
  • the electric box controls the motor, the gas circuit valve and the gas circuit switch according to the pressure state in the large gas storage tank, and then controls the number of multi-stage compressors that need to be opened.
  • the buffer gas storage chamber can send the air intake of the subsequent stage compressor through the air circuit switch.
  • the present invention raises the pressure of the basic environment of the latter stage compressor to the pressure of the closed pressure-resistant shell of the previous stage to be consistent with the outlet pressure of the previous stage, reducing the The pressure difference between the inside and outside of the compressor cavity can greatly reduce the energy consumption of the compression link in the air compression energy storage system, thereby effectively improving the efficiency of power input and output of the overall air compression energy storage system; in addition, at all levels of compression When gas storage, compressors and other equipment are in operation, the heat energy is sent to the heat storage box through the heat exchanger structure for collection, further improving the effect of energy saving and consumption reduction.
  • Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
  • first-level gas compression group 1 first-level motor 1-1, first-level compressor 1-2, first-level closed pressure-resistant shell 1-3, first-level buffer gas storage chamber C1, and first-level gas circuit switch K1 , Primary gas path valve F1, primary sensor Y1, primary gas cooling heat exchanger J1, secondary gas compression group 2, secondary motor 2-1, secondary compressor 2-2, secondary closed pressure shell Body 2-3, secondary buffer gas storage chamber C2, secondary gas circuit switch K2, secondary gas circuit valve F2, secondary sensor Y2, secondary gas cooling heat exchanger J2, tertiary gas compression group 3, tertiary Motor 3-1, third-stage compressor 3-2, third-stage closed pressure-resistant shell 3-3, third-stage buffer gas storage chamber C3, third-stage air circuit switch K3, third-stage air circuit valve F3, third-stage sensor Y3 , Three-stage gas cooling heat exchanger J3, four-stage gas compression group 4, four-stage motor 4-1, four-stage compressor 4-2, four-stage closed pressure-resistant shell 4-3, four-stage buffer gas storage chamber C4 , Four-stage gas
  • a kind of energy-saving high-efficiency intelligent multi-stage gas compression system adopts five-stage gas compression group, and wherein one-stage gas compression group 1 comprises one-stage motor 1-1, one-stage compressor 1-2, one-stage The first-stage closed pressure-resistant shell 1-3, the first-stage motor 1-1, and the first-stage compressor 1-2 are arranged in the first-stage closed pressure-resistant shell 1-3, and the first-stage motor 1-1 is driven and connected to the first-stage compressor 1-2;
  • the secondary gas compression group 2 includes a secondary motor 2-1, a secondary compressor 2-2, and a secondary closed pressure-resistant shell 2-3, and the secondary motor 2-1 and the secondary compressor 2-2 are arranged on the secondary In the stage-closed pressure-resistant shell 2-3, the secondary motor 2-1 drives and connects the secondary compressor 2-2;
  • the three-stage gas compression group 3 includes a three-stage motor 3-1, a three-stage compressor 3-2, and a three-stage closed pressure-resistant shell 3-3, and the three-stage motor 3-1 and the three-stage compressor 3-2 are arranged in three Inside the stage-closed pressure-resistant shell 3-3, the three-stage motor 3-1 drives and connects the three-stage compressor 3-2;
  • the four-stage gas compression group 4 includes a four-stage motor 4-1, a four-stage compressor 4-2, and a four-stage closed pressure-resistant shell 4-3, and the four-stage motor 4-1 and the four-stage compressor 4-2 are arranged on four
  • the four-stage motor 4-1 drives and connects the four-stage compressor 4-2 inside the stage-closed pressure-resistant shell 4-3;
  • the five-stage gas compression group 4 includes a five-stage motor 5-1, a five-stage compressor 5-2, a five-stage closed pressure-resistant shell 5-3, a five-stage motor 5-1, and a five-stage compressor 5-2 are arranged in five In the stage-closed pressure-resistant shell 5-3, the fifth-stage motor 5-1 drives and connects the fifth-stage compressor 5-2;
  • the primary compressor 1-2 is connected to the air inlet 13 of China Unicom, and the output gas of the primary compressor 1-2 is connected to the primary buffer gas storage chamber C1 through the primary gas cooling heat exchanger J1, and the primary buffer gas storage chamber C1 has There is a first-level sensor Y1, and the first-level buffer gas storage chamber C1 is respectively connected to the second-level compressor 2-2 for air intake and the large gas storage tank 6 through the first-level gas circuit switch K1 and the first-level gas circuit valve F1; the second-level compressor 2- 2
  • the outlet gas is connected to the secondary buffer gas storage chamber C2 through the secondary gas cooling heat exchanger J2.
  • the secondary buffer gas storage chamber C2 is equipped with a secondary sensor Y2.
  • the secondary gas path valve F2 is connected to the intake air of the tertiary compressor 3-2 and the large gas storage tank 6; the output gas of the tertiary compressor 3-2 is connected to the tertiary buffer gas storage chamber C3 through the tertiary gas cooling heat exchanger J3, and the tertiary buffer gas storage chamber C3.
  • the first-stage buffer air storage chamber C3 is equipped with a third-stage sensor Y3, and the third-stage buffer air storage chamber C3 is respectively connected to the fourth-stage compressor 4-2 air intake and the large air storage tank through the third-stage air circuit switch K3 and the third-stage air circuit valve F3. 6.
  • the outlet air of the fourth-stage compressor 4-2 is connected to the fourth-stage buffer gas storage chamber C4 through the fourth-stage gas cooling heat exchanger J4.
  • the fourth-stage buffer gas storage chamber C4 has a fourth-stage sensor Y4, and the fourth-stage buffer gas storage chamber C4 is respectively Through the fourth-stage gas circuit switch K4, the fourth-stage gas circuit valve F4 is connected to the intake air of the fifth-stage compressor 5-2, and the large gas storage tank 6; the output gas of the fifth-stage compressor 5-2 passes through the fifth-stage gas cooling heat exchanger J5,
  • the level gas path valve F5 is connected to the large gas storage tank 6, and the large gas storage tank 6 is equipped with a five-level sensor Y5.
  • the heat storage system 15 includes a heat storage tank 8 , a circulation pump 9 , a heat storage inlet pipeline 10 , a heat storage outlet pipeline 11 , a heat exchanger 12 , and a heat storage temperature sensor 14 .
  • the heat exchanger 12 is arranged around the gas compression group, the buffer gas storage chamber, the large gas storage tank and the interconnected pipelines.
  • the heat exchanger 12 is connected to the heat storage tank 8 through the heat storage pipeline 10 through the circulation pump 9, and the heat exchange
  • There is a heat storage temperature sensor 14 on the device the heat storage tank 8 is connected back to the heat exchanger through the heat storage outlet pipeline 11, and the circulation pump 9 and the heat storage temperature sensor 14 are connected to the electric box.
  • the above-mentioned one-stage to five-stage gas cooling heat exchangers are all connected to the heat storage system 15 .
  • the structure of the one-stage to five-stage gas-cooling heat exchangers can be arranged equivalently to the heat exchanger 12 .
  • the gas circuit switches and gas circuit valves at all levels adopt mechanical switching valves or electric switching valves controlled by electric boxes.
  • the sensor in this embodiment includes a pressure sensor and a temperature sensor, and the pressure sensor and the temperature sensor are connected to the electric box.
  • the inner cavities of the closed pressure-resistant shells at each level can be connected to the air inlets of the corresponding compressors to make the pressure equal, so as to increase the basic environmental pressure of the internal compressor body compression and reduce the pressure inside and outside the compressor pressure cavity. Pressure difference, reducing compression energy consumption.
  • the buffer gas storage chamber can make the tank or pipe structure with a certain cavity have the function of buffering or storing gas.
  • the sensor is mounted on the buffer gas storage chamber, or on the same pipeline as the buffer gas storage chamber.
  • the number of pressure sensors and temperature sensors in this system is increased or decreased according to actual needs, or their positions are adjusted, and the pressure and temperature of each step and the gas on the pipeline are monitored.
  • This technology belongs to the prior art.
  • the closed pressure-resistant casing is designed as a closed type, and communicates with the air intake of the compressor, and the air pressure is balanced. It can also be closed and not communicated with the air intake of the compressor. It can be used alone as a casing to package a motor or a compressor, or to package a compressor separately. This technology is also within the protection scope of the present invention.
  • the electric box controls the operation of the first-level gas compression group to open the gas path leading to the large gas storage tank Valve F1, at the same time close the gas circuit switch K1 leading to the second-stage gas compression group, the compressed air of the first-stage gas compression group is directly sent to the large gas storage tank, at this time only the first-stage gas compression group is working, and the second, third, fourth, The five-stage gas compression group does not work;
  • the electric box controls the two-stage gas compression group to also work, open the gas circuit switch K1, close the gas circuit valve F1,
  • the air circuit switch K2 is closed, the air circuit valve F2 is opened, and the air compressed by the first-stage gas compression group is sent to the closed pressure-resistant shell and the compressor body of the second-stage gas compression group, and then compressed by the second
  • the electric box controls the four-stage gas compression group to work, and the gas circuit switch is turned on. K3, close the gas circuit valve F3, close the gas circuit switch K4 at the same time, open the gas circuit valve F4, at this time the first, second, third and fourth gas compression groups work at the same time, and the compressed air of the third gas compression group is sent to the fourth gas
  • the closed pressure-resistant shell and compressor body of the compression group are compressed by the four-stage compressor body and then sent to the large gas storage tank; when the gas pressure in the large gas storage tank reaches the set value of 10 MPa, the electric box controls The five-stage gas compression group is also working.
  • the first, second, third, fourth, and fifth-stage gas compression groups are all working at the same time.
  • the compressed air of the compression group is sent to the closed pressure-resistant shell and the compressor body of the five-stage gas compression group, and then compressed by the five-stage compressor body and then sent to the large air storage tank until the large air storage tank reaches the set 15 megabytes. Pa pressure.
  • the specific compression settings of each level can be adjusted according to actual needs, and the number of gas compressors required can be increased or decreased according to actual conditions.
  • the corresponding sensors Y1, Y2, Y3, Y4, Y5 installed in the gas compression groups at all levels are connected to the electric box, and the electric box controls the start and stop of the corresponding gas compression group during multi-stage gas compression according to the pressure value provided by it.
  • the motors in the gas compression groups at all levels can be placed inside or outside the closed pressure-resistant casing according to actual needs.
  • F1, F2, F3, F4, and F5 can adopt one-way mechanical valves.
  • the cooling heat exchanger can also adopt a heat sink air-cooled structure or be connected to a heat circulation system with heat absorption and evaporation functions.
  • the first-stage gas compression group is fed with the atmosphere or the air that has been compressed and processed by the previous stage.
  • the program system that uses the pressure state of the gas storage container to control the required compressor stages and can be graded into the gas storage container is within the protection scope of the present invention. minus does not affect the protection of the present invention.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

一种节能高效智能多级气体压缩系统，包括大储气罐（6）多级气体压缩组（1~5）、电箱（7），多级气体压缩组接电箱（7），多级气体压缩组的出气分别经各级对应的冷却热交换器（J1~J5）接各级对应的缓冲储气室（C1~C5），各级对应的缓冲储气室（C1~C5）均经气路阀门（F1~F5）接大储气罐（6），第一级气体压缩组（1）进气接大气，前一级对应的缓冲储气室经气路开关接下一级对应的气体压缩组的进气；冷却热交换器（J1~J5）接于蓄热系统（15）中。该压缩系统结构紧凑，能有效降低气体压缩能耗浪费。

Description

一种节能高效智能多级气体压缩系统 技术领域
本发明涉及一种储气设备，具体说是一种节能高效智能多级气体压缩系统。
背景技术
空气压缩储能系统中，每次从储气罐中放出气体发电，就是一个从高压约十几兆帕到零点几兆帕的放气过程，当再次充气时需要经过气体压缩机将储气罐的气压从零点几兆帕加压到十几兆帕，这个过程也叫气体压缩储能过程。为了达到这么高的压力，需要气体多级压缩装置才能实现，而实际过程中目前主要是采用大功率多级活塞压缩机来实现，一级压缩机出气口与二级压缩机进气口串联、二级压缩机出气口与三级压缩机进气口串联、三级压缩机出气口与四级压缩机进气口串联，直至最后一级出气口联接储气罐，且多级压缩机经同一主轴由同一电机驱动。例如一台国内一台成熟的吸气量1.5m 3/min出气15兆帕的多级高压压缩机为例，主电机为30KW，一级出气压力0.2-0.3兆帕、二级出气压力1.2-1.3兆帕、三级出气压力4.5-6兆帕、四级出气压力15兆帕，四级串联。存在的问题是所有进入储气罐内的气体都要依次经过多级压缩做功才能进入，而当储气罐内压力小时整个多级压缩过程就是做了很多无用功，浪费了很多能量，最后是在最后一级出气口放了一个响炮，即无论储气罐内气压多低，多级压缩内各级压缩都在依次做无用功，在压缩环节损失了很多能量。
发明内容
本发明提供了一种结构紧凑，能有效降低气体压缩能耗的多级气体压缩系统。
本发明采用的技术方案是：一种节能高效智能多级气体压缩系统，包括大储气罐、多级气体压缩组、电箱，多级气体压缩组接电箱，其特征在于：所述多级气体压缩组的出气分别经各级对应的冷却热交换器接各级对应的缓冲储气室，各级对应的缓冲储气室均经气路阀门接大储气罐，第一级气体压缩组进气接大气，前一级对应的缓冲储气室经气路开关接下一级对应的气体压缩组的进气；所述冷却热交换器接于蓄热系统中。
进一步地，所述气体压缩组包括封闭耐压壳体、电机、压缩机，带电机的压缩机置于封闭耐压壳体内，封闭耐压壳体内腔与压缩机进气联通，电机接电箱。
进一步地，各级对应的缓冲储气室上均设置联接电箱的传感器，传感器为压力传感器和/或温度传感器。
进一步地，所述气体压缩组、缓冲储气室、大储气罐以及相互连接的管道周围设有热交换器管路。
进一步地，所述蓄热系统包括蓄热箱、蓄热管路、热交换器、循环泵、蓄热温度传感器，循环泵和蓄热温度传感器联接电箱，热交换器经带循环泵的蓄热管路接蓄热箱后再接回热交换器，热交换器或与热交换器相连的管路上带有蓄热温度传感器。
进一步地，所述冷却热交换器接于蓄热系统中的蓄热箱，或冷却热交换器采用散热片风冷结构或接于具有吸热蒸发功能的热循环系统。
进一步地，所述气路开关、气路阀门采用机械开关阀门或由电箱控制的电动开关阀门。
进一步地，所述大储气罐上设置联接电箱的传感器，传感器为压力传感器和/或温度传感器。
进一步地，所述缓冲储气室设计为罐状或通长管状，或借用冷却热交换器与大储气罐连接的一段气管结构。
本发明将多级压缩分开由电箱控制各级独立电机驱动各级压缩机，且每级压缩机压缩过的空气经冷却换热后送缓冲储气室，缓冲储气室可以经气路阀门直接至大储气罐，由电箱根据大储气罐内的压力状态控制电机及气路阀门和气路开关，进而控制相应需要开启的多级压缩机的数量，在需要开启后续一级以上压缩机时缓冲储气室可以经气路开关送后续一级压缩机进气，同时本发明将后一级压缩机的基础环境封闭耐压壳体压力提升至前一级的出气压力一致，减少了压缩机腔内和外的压力差，可大大降低在空气压缩储能系统里压缩环节的能耗，进而有效提高整体空气压缩储能系统的进电和出电的效率；另外，在各级压缩气体储气、以及压缩机等设备作业时，通过换热器结构将其热能进行送蓄热箱收集，进一步提高节能降耗效果。
附图说明
图1为本发明一实施例结构示意图。
图中：一级气体压缩组1、一级电机1-1、一级压缩机1-2、一级封闭耐压壳体1-3、一级缓冲储气室C1、一级气路开关K1、一级气路阀门F1、一级传感器Y1、一级气体冷却热交换器J1、二级气体压缩组2、二级电机2-1、二级压缩机2-2、二级封闭耐压壳体2-3、二级缓冲储气室C2、二级气路开关K2、二级气路阀门F2、二级传感器Y2、二级气体冷却热交换器J2、三级气体压缩组3、三级电机3-1、三级压缩机3-2、三级封闭耐压壳体3-3、三级缓冲储气室C3、三级气路开关K3、三级气路阀门F3、三级传感器Y3、三级气体冷却热交换器J3、四级气体压缩组4、四级电机4-1、四级压缩机4-2、四级封闭耐压壳体4-3、四级缓冲储气室C4、四级气路开关K4、四级气路阀门F4、四级传感器Y4、四级气体冷却热交换器J4、五级气体压缩组5、五级电机5-1、五级压缩机5-2、五级封闭耐压壳体5-3、五级气路阀门F5、五级传感器Y5、五级气体冷却热交换器J5、大储气罐6、电箱7、蓄热箱8、循环泵9、蓄热进管路10、蓄热出管路11、热交换器12、进气口13、蓄热温度传感器14、蓄热系统15。
具体实施方式
以下结合附图和实施例作进一步说明。
图1所示：一种节能高效智能多级气体压缩系统，本实施例采用五级气体压缩组，其中一级气体压缩组1包括一级电机1-1、一级压缩机1-2、一级封闭耐压壳体1-3，一级电机1-1、一级压缩机1-2设置于一级封闭耐压壳体1-3内，一级电机1-1驱动连接一级压缩机1-2；
二级气体压缩组2包括二级电机2-1、二级压缩机2-2、二级封闭耐压壳体2-3，二级电机2-1、二级压缩机2-2设置于二级封闭耐压壳体2-3内，二级电机2-1驱动连接二级压缩机2-2；
三级气体压缩组3包括三级电机3-1、三级压缩机3-2、三级封闭耐压壳体3-3，三级电机3-1、三级压缩机3-2设置于三级封闭耐压壳体3-3内，三级电机3-1驱动连接三级压缩机3-2；
四级气体压缩组4包括四级电机4-1、四级压缩机4-2、四级封闭耐压壳体4-3，四级电机4-1、四级压缩机4-2设置于四级封闭耐压壳体4-3内，四级电机4-1驱动连接四级压缩机4-2；
五级气体压缩组4包括五级电机5-1、五级压缩机5-2、五级封闭耐压壳体5-3，五级电机5-1、五级压缩机5-2设置于五级封闭耐压壳体5-3内，五级电机5-1驱动连接五级压缩机5-2；
一级压缩机1-2接联通大气的进气口13，一级压缩机1-2出气经一级气体冷却热交换器J1接一级缓冲储气室C1，一级缓冲储气室C1带有一级传感器Y1，一级缓冲储气室C1分别经一级气路开关K1、一级气路阀门F1接二级压缩机2-2进气、大储气罐6；二级压缩机2-2出气经二级气体冷却热交换器J2接二级缓冲储气室C2，二级缓冲储气室C2带有二级传感器Y2，二级缓冲储气室C2分别经二级气路开关K2、二级气路阀门F2接三级压缩机3-2进气、大储气罐6；三级压缩机3-2出气经三级气体冷却热交换器J3接三级缓冲储气室C3，三级缓冲储气室C3带有三级传感器Y3，三级缓冲储气室C3分别经三级气路开关K3、三级气路阀门F3接四级压缩机4-2进气、大储气罐6；四级压缩机4-2出气经四级气体冷却热交换器J4接四级缓冲储气室C4，四级缓冲储气室C4带有四级传感器Y4，四级缓冲储气室C4分别经四级气路开关K4、四级气路阀门F4接五级压缩机5-2进气、大储气罐6；五级压缩机5-2出气经五级气体冷却热交换器J5、五级气路阀门F5接大储气罐6，大储气罐6带有五级传感器Y5。
本实施例中蓄热系统15包括蓄热箱8、循环泵9、蓄热进管路10、蓄热出管路11、热交换器12、蓄热温度传感器14。热交换器12设置于气体压缩组、缓冲储气室、大储气罐以及相互连接的管道周围，热交换器12经蓄热进管路10通过循环泵9联接蓄热箱8，，热交换器上带有蓄热温度传感器14，蓄热箱8经蓄热出管路11接回热交换器，循环泵9和蓄热温度传感器14接电箱。
上述一级至五级气体冷却热交换器均接于蓄热系统15中。可将一级至五级气体冷却热交换器结构等同于热交换器12设置。
在本实施例中的各级气路开关、气路阀门采用机械开关阀门或由电箱控制的电动开关阀门。
在本实施例中的传感器包括压力传感器和温度传感器，压力传感器、温度传感器联接电箱。
在本实施例基础上，可将各级封闭耐压壳体内腔接通对应级压缩机进气口，使得压力相等，以提高内部压缩机本体压缩的基础环境压力，减少了压缩机压腔内外压力差，减少压缩能耗。
在本实施例中，缓冲储气室可以使一定型腔的罐、管结构，具有缓冲或储存气体作用。
在本实施例中，传感器装在缓冲储气室上，或与缓冲储气室相同的管路上。本系统中压力传感器和温度传感器数量根据实际需求增减，或作位置调整，对于各步骤、管路上气体进行压力、温度监控，该技术属于现有技术。
在本实施例中，封闭耐压壳体设计为封闭式，且与压缩机进气相通、气压平衡。还可将其封闭，不与压缩机进气相通，单独作为壳体封装电机、压缩机进行使用，或单独封装压缩机，该技术也在本发明保护范围内。
本实施例的实施过程如下：
设定大储气罐目标最高压力为15兆帕，大储气罐内气体压力在0-0.3兆帕区间时电箱控制一级气体压缩组运行工作，打开通往大储气罐的气路阀门F1，同时关闭通往二级气体压缩组的气路开关K1，一级气体压缩组压缩空气直接送入大储气罐，此时只有一级气体压缩组工作，后面二、三、四、五级气体压缩组不工作；当大储气罐内气体压力达到设定值0.3兆帕时，则电箱控制二级气体压缩组也运行工作，打开气路开关K1，关闭气路阀门F1，同时气路开关K2关闭，气路阀门F2打开，一级气体压缩组压缩的空气送入二级气体压缩组的封闭耐压壳体和压缩机本体，再由二级压缩机本体压缩后进入大储气罐；当大储气罐内气体压力达到设定值1.3兆帕时，则电箱控制三级气体压缩组也运行工作，并打开气路开关K2，关闭气路阀门F2，同时关闭气路开关K3，打开气路阀门F3，此时一、二、三级气体压缩组同时工作，二级气体压缩组的压缩空气送入三级气体压缩组的封闭耐压壳体和压缩机本体，再由三级压缩机本体压缩后送入大储气罐，当大储气罐内气体压力达到设定值6兆帕时，则电箱控制四级气体压缩组也运行工作，打开气路开关K3，关闭气路阀门F3，同时关闭气路开关K4，打开气路阀门F4，此时一、二、三、四级气体压缩组同时工作，三级气体压缩组的压缩空气送入四级气体压缩组的封闭耐压壳体和压缩机本体，再由四级压缩机本体压缩后送入大储气罐；当大储气罐内气体压力达到设定值10兆帕时，则电箱控制五级气体压缩组也运行工作，打开气路开关K4，关闭气路阀门F4，同时打开气路阀门F5，此时一、二、三、四、五级气体压缩组都同时工作，四级气体压缩组的压缩空气送入五级气体压缩组的封闭耐压壳体和压缩机本体，再由五级压缩机本体压缩后送入大储气罐，直至大储气罐达到设定的15兆帕压力为止。具体的各级压缩设定值可以根据实际需要调整设定，所需要的气体压缩机数根据实际情况增减。各级气体压缩组相应设置的传感器Y1、Y2、Y3、Y4、Y5联接电箱，电箱根据其提供的压力数值来控制相对应的气体压缩组多级气体压缩时的起停。
各级气体压缩组中电机可根据实际需要置于封闭耐压壳体内或外。
本系统中F1、F2、F3、F4、F5可以采用单向机械阀。
在本实施例基础上，冷却热交换器还可采用散热片风冷结构或接于具有吸热蒸发功能的热循环系统。
本实施例中第一级气体压缩组进气接大气或前一级压缩处理过的空气。
凡为了实现目标储气压力，采用根据储气容器压力状态，分区间控制所需压缩机级数且能分级送入储气容器的方案系统，均在本发明保护范围之内，个别零部件增减不影响本发明的保护。

Claims (9)

  1. 一种节能高效智能多级气体压缩系统，包括大储气罐、多级气体压缩组、电箱，多级气体压缩组接电箱，其特征在于：所述多级气体压缩组的出气分别经各级对应的冷却热交换器接各级对应的缓冲储气室，各级对应的缓冲储气室均经气路阀门接大储气罐，第一级气体压缩组进气接大气，前一级对应的缓冲储气室经气路开关接下一级对应的气体压缩组的进气；所述冷却热交换器接于蓄热系统中。
  2. 根据权利要求1所述的一种节能高效智能多级气体压缩系统，其特征是：所述气体压缩组包括封闭耐压壳体、电机、压缩机，带电机的压缩机置于封闭耐压壳体内，封闭耐压壳体内腔与压缩机进气联通，电机接电箱。
  3. 根据权利要求1所述的一种节能高效智能多级气体压缩系统，其特征是：各级对应的缓冲储气室上均设置联接电箱的传感器，传感器为压力传感器和/或温度传感器。
  4. 根据权利要求1所述的一种节能高效智能多级气体压缩系统，其特征是：所述气体压缩组、缓冲储气室、大储气罐以及相互连接的管道周围设有热交换器管路。
  5. 根据权利要求4所述的一种节能高效智能多级气体压缩系统，其特征是：所述蓄热系统包括蓄热箱、蓄热管路、热交换器、循环泵、蓄热温度传感器，循环泵和蓄热温度传感器联接电箱，热交换器经带循环泵的蓄热管路接蓄热箱后再接回热交换器，热交换器或与热交换器相连的管路上带有蓄热温度传感器。
  6. 根据权利要求1所述的一种节能高效智能多级气体压缩系统，其特征是：所述冷却热交换器接于蓄热系统中的蓄热箱，或冷却热交换器采用散热片风冷结构或接于具有吸热蒸发功能的热循环系统。
  7. 根据权利要求1所述一种节能高效智能多级气体压缩系统，其特征是：所述气路开关、气路阀门采用机械开关阀门或由电箱控制的电动开关阀门。
  8. 根据权利要求1所述的一种节能高效智能多级气体压缩系统，其特征是：所述大储气罐上设置联接电箱的传感器，传感器为压力传感器和/或温度传感器。
  9. 根据权利要求1或3或4所述的一种节能高效智能多级气体压缩系统，其特征是：所述缓冲储气室设计为罐状或通长管状，或借用冷却热交换器与大储气罐相互连接的一段管路结构。
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CN114046241A (zh) * 2021-12-22 2022-02-15 江苏友诚数控科技有限公司 一种节能高效智能多级气体压缩系统
CN216589032U (zh) * 2021-12-22 2022-05-24 江苏友诚数控科技有限公司 一种节能高效智能多级气体压缩系统

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