WO2019200712A1 - 一种气力输送精准增压***及方法 - Google Patents

一种气力输送精准增压***及方法 Download PDF

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Publication number
WO2019200712A1
WO2019200712A1 PCT/CN2018/093019 CN2018093019W WO2019200712A1 WO 2019200712 A1 WO2019200712 A1 WO 2019200712A1 CN 2018093019 W CN2018093019 W CN 2018093019W WO 2019200712 A1 WO2019200712 A1 WO 2019200712A1
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pressure
valve
pipe
flow
hole
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PCT/CN2018/093019
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English (en)
French (fr)
Inventor
杨道龙
王雁翔
李建平
邢邦圣
周锋
余柄辰
田世伟
田超
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江苏师范大学
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Application filed by 江苏师范大学 filed Critical 江苏师范大学
Priority to AU2018418036A priority Critical patent/AU2018418036B2/en
Publication of WO2019200712A1 publication Critical patent/WO2019200712A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material

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  • the invention relates to a pneumatic conveying precision supercharging system and method, which is suitable for an air pneumatic conveying system of a dilute phase and a dense phase inert material.
  • a pneumatic conveying system is a conveying system that transports granular materials in a pipeline by using a gas stream having a certain pressure and a certain speed.
  • the pneumatic conveying pipeline is generally a mixed medium of air and powder materials, and belongs to the category of gas-solid two-phase flow.
  • the conveying speed of the material is gradually reduced, and finally the material is blocked at a position where the pressure loss is large such as a bent pipe or a bifurcated pipe. Therefore, multiple sets of pressurization equipment are often added to the pneumatic conveying system to prevent pipe blockage.
  • the existing pneumatic boosting devices and methods have problems such as insufficient or excessive pressurization, easy damage of the pressure measuring system, and the inability to perform more precise supercharging behavior, thereby restricting the development of the pneumatic conveying system.
  • the present invention provides a pneumatic conveying precision supercharging system and method, which can generate a relatively reasonable axial flow pressurized flow field or a swirling pressurized flow field, which can satisfy the partial or overall supercharging of the pipeline.
  • the demand can prevent problems such as material crushing and energy loss caused by over-pressurization.
  • a pneumatic conveying precision supercharging system comprises a material pneumatic conveying pipeline, wherein a pressure measuring device and a supercharging device are sequentially arranged along the material flow direction on the material pneumatic conveying pipeline;
  • the pressure measuring device comprises a pressure measuring tube and a pressure sensor The left and right ends of the pressure measuring tube are connected with the material pneumatic conveying pipeline, and the upper end of the pressure measuring tube is connected with the pressure sensor;
  • the supercharging device comprises a boosting tube, an electronically controlled reversing valve, a flow meter, an electronically controlled flow valve and high pressure air.
  • the conveying pipe, the left and right ends of the boosting pipe are connected to the material pneumatic conveying pipe, and the boosting pipe is provided with three pressure increasing valves, and the pipe wall of the boosting pipe is provided with three radial valve holes and three axial directions.
  • the annular plenum chamber, three valve holes are evenly distributed in the axial direction, the pressure increasing valve is installed in the valve hole, one end of the boosting valve is connected to the annular plenum chamber, and the other end is connected to the outlet of the electronically controlled directional control valve, electronically controlled
  • the inlet of the reversing valve is connected to the outlet of the flow meter, the inlet of the meter is connected to the outlet of the electronically controlled flow valve, the inlet of the electronically controlled flow valve is connected to the high pressure air delivery tube;
  • the data acquisition instrument and the data analysis control including the electrical connection are also included ,
  • the data output end of the pressure sensor of the pressure measuring device is connected to the data collecting instrument through a data transmission line, and the control end of the electronically controlled reversing valve is connected with the data analysis controller, and the data output end of the flow meter is connected to the data collecting instrument through the data transmission line, and the electric The control end of the flow control valve is connected to the data analysis controller.
  • a pneumatic conveying precision boosting method the steps are as follows:
  • the pressure measuring device obtains the flow field pressure change in the pneumatic conveying pipeline system, and transmits the data to the data collecting instrument through the data line, and the data collecting instrument transmits the collected pressure data to the data analysis controller;
  • the data analysis controller analyzes the obtained flow field pressure change and compares it with the preset normal delivery value of the pneumatic conveying
  • the data analysis controller controls the corresponding electronically controlled flow valve to open, and the high pressure air passes through the high pressure air delivery pipe, the electronically controlled flow valve, the flow meter, the electronically controlled reversing valve and the supercharging The tube enters the material pneumatic conveying pipeline;
  • the pressure measuring device and the flow meter feed back the pressure and flow data to the data analysis controller through the data acquisition instrument, and the data analysis controller analyzes the feedback data to the opening of the corresponding electronically controlled flow valve.
  • the position and opening time of the electronically controlled directional control valve are adjusted and controlled to generate a suitable axial flow pressurized flow field, pure pressurized flow field or swirling pressurized flow field, and the precise pressurized flow rate at the position is obtained. Pressure mode and boost time.
  • the pneumatic conveying precision supercharging system and method of the present invention changes the flow field pressure in the pneumatic conveying pipeline system by arranging a plurality of sets of pressure measuring devices and supercharging devices in the material pneumatic conveying pipeline. , into the data acquisition instrument and data analysis controller, and compared with the preset normal delivery value.
  • the data analysis controller controls the corresponding electronically controlled flow valve and the electronically controlled directional control valve to open the radial boosting hole of the boosting device to generate a pure pressurized flow field;
  • the pressure measuring device and the flow meter feed back the pressure and flow data to the data analysis controller in time, and adjust the opening of the corresponding electronically controlled flow valve, the position and opening time of the electronically controlled reversing valve by analyzing the feedback data.
  • FIG. 1 is a structural diagram of a system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of the pressure measuring device of FIG. 1.
  • FIG. 3 is a schematic structural view of the supercharging device of FIG. 1.
  • Figure 4 is an enlarged view of B in Figure 3.
  • a pneumatic conveying precision boosting system of Fig. 1 includes a material pneumatic conveying pipe 10 on the material pneumatic conveying pipe 10
  • the material flow direction is arranged at intervals to set the pressure measuring device 7 and the pressure increasing device 8; preferably, the plurality of pressure measuring devices 7 and the pressure increasing device 8 are arranged on the material pneumatic conveying pipe 10, and the pressure increasing device 8 and the pressure measuring device 7 are formed.
  • the pressure measuring device 7 and the charging device 8 are connected to the material pneumatic conveying pipe 10 through the connecting flange 9.
  • the pressure measuring device 7 includes a pressure measuring tube 7-4 and a pressure sensor 7-1, and the pressurized tube 8-4 should be pressed and formed by powder metallurgy technology to have a strong The wear resistance, the left and right ends of the pressure measuring tube 7-4 are connected to the material pneumatic conveying pipe 10, and the upper end of the pressure measuring tube 7-4 is connected with the pressure sensor 7-1; see FIG. 3 and FIG.
  • booster tube 8 includes a booster tube 8-4, an electronically controlled directional control valve 6, a flow meter 5, an electronically controlled flow valve 4, and a high pressure air delivery pipe 3, and the left and right ends of the booster pipe 8-4 are connected to the material pneumatic conveying pipe 10,
  • the booster tube 8-4 is provided with three pressure increasing valves, and the tube wall of the boosting tube 8-4 is provided with three radial valve holes 8-9 and three circumferential annular pressurized chambers 8-8.
  • the three valve holes 8-9 are evenly distributed in the axial direction, the pressure increasing valve is installed in the valve hole 8-9, the one end of the pressure increasing valve is connected to the annular plenum chamber 8-8, and the other end is connected to the electronically controlled directional control valve 6
  • the outlet is connected, and the different valve positions of the electronically controlled directional control valve 6 are controlled to obtain different supercharging modes, thereby generating an axial flow pressurized flow field, a pure pressurized flow field and a swirling pressurized flow field;
  • the electronically controlled directional control valve 6 inlet and outlet of flow meter 5
  • the inlet of the meter 5 is connected to the outlet of the electronically controlled flow valve 4, and the inlet of the electronically controlled flow valve 4 is connected to the high-pressure air delivery pipe 3; the data acquisition device 1 and the data analysis controller 2 for electrical connection are also included, and the pressure is measured.
  • the data output end of the pressure sensor 7-1 of the device 7 is connected to the data acquisition device 1 through a data transmission line, and the control end of the electronically controlled directional control valve 6 is connected to the data analysis controller 2, and the data output end of the flow meter 5 passes through the data transmission line and The data acquisition device 1 is connected, and the control end of the electronically controlled flow valve 4 is connected to the data analysis controller 2.
  • the three annular pressurized chambers 8-8 of the supercharging device 8 are respectively provided with an axial flow boosting hole 8-1, a radial pressure increasing hole 8-2 and a swirling flow.
  • One end of the boosting hole 8-3, the axial flow pressurizing hole 8-1, the radial boosting hole 8-2 and the swirling pressurizing hole 8-3 are connected to the annular pressurizing chamber 8-8, and the other end is connected and increased.
  • the inner cavity of the pressure tube, the radial pressure increasing hole 8-2 is perpendicular to the axial direction of the pressure increasing tube 8-4, and generates a pure pressurized flow field; the axial pressure increasing hole 8-1 and the pressure increasing tube 8-4 are axially formed.
  • the swirling pressure boosting hole 8-3 has an inclination angle of 5° to 85° with respect to the axial direction of the supercharger tube 8-4, and a booster tube
  • the 8-4 axial direction has a skew angle of 5° to 85°, resulting in a swirling pressurized flow field.
  • the valve hole 8-9 is provided with a valve spring 8-5, a high pressure pipe 8-6 and a hemispherical valve 8-7, and the end of the high pressure pipe 8-6 is threadedly connected with the upper end of the valve hole 8-9 by a thread.
  • the lower end of the high pressure pipe 8-6 is in contact with the upper end of the hemispherical valve 8-7, and the lower end of the hemispherical valve 8-7 is connected to the outlet of the valve hole 8-9 through the valve spring 8-5, and the outlet diameter of the valve hole 8-9 is contracted. Connected to the annular plenum chamber 8-8.
  • the pressure measuring device 7 further includes a dustproof can 7-2 and a filter net 7-3.
  • the upper end of the pressure measuring tube 7-4 has a pressure measuring hole, and the dustproof can 7-2 is installed at A pressure filter 7-3 is installed between the pressure measuring hole and the dustproof can 7-2, and a pressure sensor 7-1 is mounted on the upper portion of the dustproof can 7-2.
  • the filter 7-3 and the dustproof tank 7-2 can prevent the conveying material particles from blocking the pressure measuring hole and prevent the material dust from entering the pressure sensor 7-1, thereby affecting the measurement result.
  • a pneumatic conveying precision boosting method the steps are as follows:
  • the pressure measuring device 7 obtains the flow field pressure change in the pneumatic conveying pipeline system, and transmits it to the data collecting instrument 1 through the data line, and the data collecting instrument 1 transmits the collected pressure data to the data analyzing controller 2;
  • the data analysis controller 2 analyzes the obtained flow field pressure change and compares it with a preset normal delivery value of the pneumatic conveying
  • the data analysis controller 2 controls the corresponding electronically controlled flow valve 4 to be opened, and the high pressure air is passed through the high pressure air delivery pipe 3, the electronically controlled flow valve 4, the flow meter 5, and the electronically controlled Entering the material pneumatic conveying pipe 10 to the valve 6 and the boosting pipe 8-4;
  • the pressure measuring device 7 and the flow meter 5 feed back the pressure and flow data to the data analysis controller 2 through the data acquisition device 1 in time, and the data analysis controller 2 analyzes the feedback data to the corresponding electronic control.
  • the opening degree of the flow valve 4, the position and the opening time of the electrically controlled directional control valve 6 are adjusted and controlled to generate a suitable axial flow pressurized flow field, a pure pressurized flow field or a swirling pressurized flow field, and the position is obtained.
  • the precise supercharging flow rate, supercharging mode and supercharging time can meet the requirements of partial or overall supercharging of the pipeline, and prevent material crushing and energy loss caused by over-pressurization.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)

Abstract

一种气力输送精准增压***，包括物料气力输送管道（10），在所述物料气力输送管道（10）上沿物料流向依次间隔设置测压装置（7）和增压装置（8）；所述的测压装置（7）包括测压管（7-4）和压力传感器（7-1），测压管（7-4）左右两端与物料气力输送管道（10）相连，测压管（7-4）中部上端连接压力传感器（7-1）；所述的增压装置（8）包括增压管（8-5）、电控换向阀（6）、流量计（5）、电控流量阀（4）和高压空气输送管（3），增压管（8-5）左右两端连接在物料气力输送管道（10）上，增压管（8-5）上设有三个增压阀；还包括电连接的数据采集仪和数据分析控制器。该***既满足管道压力的需求，又可防止增压过度。

Description

一种气力输送精准增压***及方法 技术领域
本发明涉及一种气力输送精准增压***及方法，适用于稀相和密相惰性物料的空气气力输送***。
背景技术
气力输送***是利用具有一定压力和一定速度的气流在管道中输送粉粒状物料的一种输送***。气力输送管道中，一般是空气和粉粒物料的混合介质，属于气固两相流范畴。气力输送过程中，由于物料与管道间的摩擦作用、物料间的摩擦作用，物料的输送速度逐渐降低，最终导致物料在弯管、分叉管等压损较大的位置堵塞。因此，常常在气力输送***中增加多组增压设备，以防止管道堵塞。
但是，现有的气力增压设备及方法存在增压量不足或者过量、测压***易损坏等问题，不能进行较为精准的增压行为，从而制约了气力输送***的发展。
发明内容
为了克服现有技术的上述不足，本发明提供一种气力输送精准增压***及方法，能够产生较为合理的轴流增压流场或者旋流增压流场，既满足管道局部或整体增压的需求，又可防止增压过度而产生的物料破碎与能量损耗等问题。
本发明解决其技术问题采用的技术方案是：
一种气力输送精准增压***，包括物料气力输送管道，在所述物料气力输送管道上沿物料流向依次间隔设置测压装置和增压装置；所述的测压装置 包括测压管和压力传感器，测压管左右两端与物料气力输送管道相连，测压管中部上端连接压力传感器；所述的增压装置包括增压管、电控换向阀、流量计、电控流量阀和高压空气输送管，增压管左右两端连接在物料气力输送管道上，增压管上设有三个增压阀，增压管的管壁上设有三个沿径向的阀孔和三个沿轴向的环形增压腔，三个阀孔沿轴向均布，增压阀安装在阀孔内，增压阀一端与环形增压腔相连，另一端与电控换向阀的出口相连，电控换向阀的进口与流量计的出口相连，量计的进口与电控流量阀的出口相连，电控流量阀的进口与高压空气输送管相连；还包括电连接的数据采集仪和数据分析控制器，测压装置的压力传感器的数据输出端通过数据传输线与数据采集仪相连，电控换向阀的控制端与数据分析控制器相连，流量计的数据输出端通过数据传输线与数据采集仪相连，电控流量阀的控制端与数据分析控制器相连。
一种气力输送精准增压方法，步骤如下：
1)在物料气力输送管道中，布置多组测压装置和增压装置；
2)测压装置获得气力输送管道***中的流场压力变化，通过数据线传输到数据采集仪中，数据采集仪将采集到的压力数据传输给数据分析控制器中；
3)数据分析控制器分析获得的流场压力变化，并与预先设定的气力输送正常输送值进行对比；
4)当获得的压力值小于设定值时，数据分析控制器控制相应的电控流量阀开启，高压空气通过高压空气输送管道、电控流量阀、流量计、电控换向阀和增压管进入物料气力输送管道；
5)当电控换向阀的通路接通增压管上的轴流增压孔时，高压空气输送管道内的高压气流进入轴流增压孔，产生轴流增压流场；
6)当电控换向阀的通路接通增压管上的径向增压孔时，高压空气输送管道内的高压气流进入径向增压孔，产生纯增压流场；
7)当电控换向阀的通路接通增压管上的旋流增压孔时，高压空气输送管道内的高压气流进入旋流增压孔，可产生旋流增压流场；
8)增压过程中，测压装置和流量计通过数据采集仪将压力和流量数据及时反馈给数据分析控制器，数据分析控制器通过分析反馈的数据，对相应的电控流量阀的开度、电控换向阀的位置和开启时间进行调整与控制，产生相适宜的轴流增压流场、纯增压流场或者旋流增压流场，获得该位置的精准增压流量、增压方式以及增压时间。
相比现有技术，本发明的一种气力输送精准增压***及方法，通过在物料气力输送管道中，布置多组测压装置和增压装置，将气力输送管道***中的流场压力变化，输到数据采集仪和数据分析控制器中，并与预先设定的正常输送值进行对比。当获得的压力值小于设定值时，数据分析控制器控制相应的电控流量阀和电控换向阀开启增压装置的径向增压孔，产生纯增压流场；增压过程中，测压装置和流量计将压力和流量数据及时反馈给数据分析控制器，并通过分析反馈的数据，对相应的电控流量阀的开度、电控换向阀的位置和开启时间进行调整与控制，产生较为合理的轴流增压流场或者旋流增压流场，以获得该位置的精准增压流量、增压方式以及增压时间，达到既满足管道局部或整体增压的需求，又可防止增压过度而产生的物料破碎与能量损耗等问题，具有较强的创新性和广泛的实用性。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1为本发明实施例的***结构图。
图2为图1中测压装置的结构示意图。
图3为图1增压装置的结构示意图。
图4为图3中B处的放大图。
图中：1、数据采集仪，2、数据分析控制器，3、高压空气输送管，4、电控流量阀，5、流量计，6、电控换向阀，7、测压装置，8、增压装置，9、连接法兰，10、物料气力输送管道，7-1、压力传感器，7-2、防尘罐，7-3、过滤网，7-4、测压管，8-1、轴流增压孔，8-2、径向增压孔，8-3、旋流增压孔，8-4、增压管，8-5、阀门弹簧，8-6、高压管道，8-7、半球阀，8-8、环形增压腔，8-9、阀孔。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明的保护范围。
图1至图4示出了本发明一个较佳的实施例的结构示意图，图1中的一种气力输送精准增压***，包括物料气力输送管道10，在所述物料气力输送管道10上沿物料流向依次间隔设置测压装置7和增压装置8；优选地，所述在物料气力输送管道10上布置多组测压装置7和增压装置8，增压装置8 与测压装置7成对安装；具体地，测压装置7和增压装置8均通过连接法兰9与物料气力输送管道10连接。其中，继续参见图2，所述的测压装置7包括测压管7-4和压力传感器7-1，所述的增压管8-4宜采用粉末冶金技术压制烧结成形，以具有较强的耐磨性，测压管7-4左右两端与物料气力输送管道10相连，测压管7-4中部上端连接压力传感器7-1；参见图3和图4，所述的增压装置8包括增压管8-4、电控换向阀6、流量计5、电控流量阀4和高压空气输送管3，增压管8-4左右两端连接在物料气力输送管道10上，增压管8-4上设有三个增压阀，增压管8-4的管壁上设有三个沿径向的阀孔8-9和三个沿周向的环形增压腔8-8，三个阀孔8-9沿轴向均布，增压阀安装在阀孔8-9内，增压阀一端与环形增压腔8-8相连，另一端与电控换向阀6的出口相连，通过控制电控换向阀6的不同阀位，以获得不同的增压方式，产生轴流增压流场、纯增压流场以及旋流增压流场；电控换向阀6的进口与流量计5的出口相连，量计5的进口与电控流量阀4的出口相连，电控流量阀4的进口与高压空气输送管3相连；还包括电连接的数据采集仪1和数据分析控制器2，测压装置7的压力传感器7-1的数据输出端通过数据传输线与数据采集仪1相连，电控换向阀6的控制端与数据分析控制器2相连，流量计5的数据输出端通过数据传输线与数据采集仪1相连，电控流量阀4的控制端与数据分析控制器2相连。
如图3和图4所示，所述增压装置8的三个环形增压腔8-8上分别均布开设轴流增压孔8-1、径向增压孔8-2和旋流增压孔8-3，轴流增压孔8-1、径向增压孔8-2和旋流增压孔8-3的一端均连接环形增压腔8-8，另一端连接导增压管的内腔，径向增压孔8-2与增压管8-4轴向垂直，产生纯增压流 场；轴向增压孔8-1与增压管8-4轴向成5°～85°的倾斜角，产生轴流增压流场；旋流增压孔8-3既与增压管8-4轴向成5°～85°的倾斜角，又与增压管8-4轴向成5°～85°的偏斜角，产生旋流增压流场。进一步地，所述阀孔8-9内设有阀门弹簧8-5、高压管道8-6和半球阀8-7，高压管道8-6末端四周通过螺纹与阀孔8-9上端螺纹密封连接，高压管道8-6末端下方与半球阀8-7上端接触，半球阀8-7下端通过阀门弹簧8-5与阀孔8-9的出口相接，阀孔8-9的出口直径收缩地连通到环形增压腔8-8内。
如图2所示，所述的测压装置7还包括防尘罐7-2和过滤网7-3，测压管7-4中部上端开有测压孔，防尘罐7-2安装在测压孔上，测压孔与防尘罐7-2之间安装过滤网7-3，防尘罐7-2上部安装压力传感器7-1。过滤网7-3和防尘罐7-2可避免输送物料颗粒堵塞测压孔、并防止物料粉尘进入压力传感器7-1，影响测量结果。
一种气力输送精准增压方法，步骤如下：
1)在物料气力输送管道10中，布置多组测压装置7和增压装置8；
2)测压装置7获得气力输送管道***中的流场压力变化，通过数据线传输到数据采集仪1中，数据采集仪1将采集到的压力数据传输给数据分析控制器2中；
3)数据分析控制器2分析获得的流场压力变化，并与预先设定的气力输送正常输送值进行对比；
4)当获得的压力值小于设定值时，数据分析控制器2控制相应的电控流量阀4开启，高压空气通过高压空气输送管道3、电控流量阀4、流量计5、电控换向阀6和增压管8-4进入物料气力输送管道10；
5)当电控换向阀6的通路接通增压管8-4上的轴流增压孔8-1时，高压空气输送管道3内的高压气流进入轴流增压孔8-1，产生轴流增压流场；
6)当电控换向阀6的通路接通增压管8-4上的径向增压孔8-2时，高压空气输送管道3内的高压气流进入径向增压孔8-2，产生纯增压流场；
7)当电控换向阀6的通路接通增压管8-4上的旋流增压孔8-3时，高压空气输送管道3)内的高压气流进入旋流增压孔8-3，可产生旋流增压流场；
8)增压过程中，测压装置7和流量计5通过数据采集仪1将压力和流量数据及时反馈给数据分析控制器2，数据分析控制器2通过分析反馈的数据，对相应的电控流量阀4的开度、电控换向阀6的位置和开启时间进行调整与控制，产生相适宜的轴流增压流场、纯增压流场或者旋流增压流场，获得该位置的精准增压流量、增压方式以及增压时间，达到既满足管道局部或整体增压的需求，又可防止增压过度而产生的物料破碎与能量损耗等问题。
以上所述，仅是本发明的较佳实施例，并非对本发明做任何形式上的限制，凡是依据本发明的技术实质，对以上实施例所做出任何简单修改和同等变化，均落入本发明的保护范围之内。

Claims (7)

  1. 一种气力输送精准增压***，包括物料气力输送管道(10)，其特征是：在所述物料气力输送管道(10)上沿物料流向依次间隔设置测压装置(7)和增压装置(8)；
    所述的测压装置(7)包括测压管(7-4)和压力传感器(7-1)，测压管(7-4)左右两端与物料气力输送管道(10)相连，测压管(7-4)中部上端连接压力传感器(7-1)；
    所述的增压装置(8)包括增压管(8-4)、电控换向阀(6)、流量计(5)、电控流量阀(4)和高压空气输送管(3)，增压管(8-4)左右两端连接在物料气力输送管道(10)上，增压管(8-4)上设有三个增压阀，增压管(8-4)的管壁上设有三个沿径向的阀孔(8-9)和三个沿周向的环形增压腔(8-8)，三个阀孔(8-9)沿增压管(8-4)轴向均布排列，增压阀安装在阀孔(8-9)内，增压阀一端与环形增压腔(8-8)相连，另一端与电控换向阀(6)的出口相连，电控换向阀(6)的进口与流量计(5)的出口相连，量计(5)的进口与电控流量阀(4)的出口相连，电控流量阀(4)的进口与高压空气输送管(3)相连；
    还包括电连接的数据采集仪(1)和数据分析控制器(2)，测压装置(7)的压力传感器(7-1)的数据输出端通过数据传输线与数据采集仪(1)相连，电控换向阀(6)的控制端与数据分析控制器(2)相连，流量计(5)的数据输出端通过数据传输线与数据采集仪(1)相连，电控流量阀(4)的控制端与数据分析控制器(2)相连。
  2. 根据权利要求1所述的一种气力输送精准增压***，其特征是：所述增压装置(8)的三个环形增压腔(8-8)上分别均布开设轴流增压孔(8-1)、 径向增压孔(8-2)和旋流增压孔(8-3)，轴流增压孔(8-1)、径向增压孔(8-2)和旋流增压孔(8-3)的一端均连接环形增压腔(8-8)，另一端连接导增压管的内腔，径向增压孔(8-2)与增压管(8-4)轴向垂直，产生纯增压流场；轴向增压孔(8-1)与增压管(8-4)轴向成5°～85°的倾斜角，产生轴流增压流场；旋流增压孔(8-3)既与增压管(8-4)轴向成5°～85°的倾斜角，又与增压管(8-4)轴向成5°～85°的偏斜角，产生旋流增压流场。
  3. 根据权利要求2所述的一种气力输送精准增压***，其特征是：所述阀孔(8-9)内设有阀门弹簧(8-5)、高压管道(8-6)和半球阀(8-7)，高压管道(8-6)末端四周通过螺纹与阀孔(8-9)上端螺纹密封连接，高压管道(8-6)末端下方与半球阀(8-7)上端接触，半球阀(8-7)下端通过阀门弹簧(8-5)与阀孔(8-9)的出口相接，阀孔(8-9)的出口直径收缩地连通到环形增压腔(8-8)内。
  4. 根据权利要求1或2或3所述的一种气力输送精准增压***，其特征是：所述的增压管(8-4)采用粉末冶金技术压制烧结成形。
  5. 根据权利要求2或3所述的一种气力输送精准增压***，其特征是：所述的测压装置(7)还包括防尘罐(7-2)和过滤网(7-3)，测压管(7-4)中部上端开有测压孔，防尘罐(7-2)安装在测压孔上，测压孔与防尘罐(7-2)之间安装过滤网(7-3)，防尘罐(7-2)上部安装压力传感器(7-1)。
  6. 根据权利要求2或3所述的一种气力输送精准增压***，其特征是：所述在物料气力输送管道(10)上布置多组测压装置(7)和增压装置(8)，增压装置(8)与测压装置(7)成对安装，测压装置(7)和增压装置(8) 均通过连接法兰(9)与物料气力输送管道(10)连接。
  7. 一种气力输送精准增压方法，其特征在于，步骤如下：
    1)在物料气力输送管道(10)中，布置多组测压装置(7)和增压装置(8)；
    2)测压装置(7)获得气力输送管道***中的流场压力变化，通过数据线传输到数据采集仪(1)中，数据采集仪(1)将采集到的压力数据传输给数据分析控制器(2)中；
    3)数据分析控制器(2)分析获得的流场压力变化，并与预先设定的气力输送正常输送值进行对比；
    4)当获得的压力值小于设定值时，数据分析控制器(2)控制相应的电控流量阀(4)开启，高压空气通过高压空气输送管道(3)、电控流量阀(4)、流量计(5)、电控换向阀(6)和增压管(8-4)进入物料气力输送管道(10)；
    5)当电控换向阀(6)的通路接通增压管(8-4)上的轴流增压孔(8-1)时，高压空气输送管道(3)内的高压气流进入轴流增压孔(8-1)，产生轴流增压流场；
    6)当电控换向阀(6)的通路接通增压管(8-4)上的径向增压孔(8-2)时，高压空气输送管道(3)内的高压气流进入径向增压孔(8-2)，产生纯增压流场；
    7)当电控换向阀(6)的通路接通增压管(8-4)上的旋流增压孔(8-3)时，高压空气输送管道(3)内的高压气流进入旋流增压孔(8-3)，产生旋流增压流场；
    8)增压过程中，测压装置(7)和流量计(5)通过数据采集仪(1)将 压力和流量数据及时反馈给数据分析控制器(2)，数据分析控制器(2)通过分析反馈的数据，对相应的电控流量阀(4)的开度、电控换向阀(6)的位置和开启时间进行调整与控制，产生相适宜的轴流增压流场、纯增压流场或者旋流增压流场，获得该位置的精准增压流量、增压方式以及增压时间。
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