CN213684806U - Bladeless pneumatic flow guiding and rectifying system - Google Patents

Abstract

The utility model provides a no blade pneumatic water conservancy diversion, rectification system, is including setting up a plurality of I type nozzle groups of group and the II type nozzle groups of a plurality of groups that set up the inner arc side at the flue at the inner arc side of flue, and I type nozzle group all links to each other with compressed air jar with II type nozzle group, and gas flow inlet department and gas flow outlet department all are provided with monitor table group in the flue. Pneumatic water conservancy diversion of no blade, rectifier system when concrete operation, can in time adjust the tolerance that gets into the nozzle according to the resistance data of real-time feedback, realize the purpose of flow field optimization. Compared with the conventional flow guide and rectifying plate or blade design, after the blades are omitted, the construction is convenient and simple, the appearance of the flue does not need to be modified, a large amount of materials and a construction period are saved, the real-time adjustability of flow field optimization is realized, the effect of the flow field optimization is closer to the result of numerical simulation, and the efficiency of the flow field optimization is greatly improved.

Description

Bladeless pneumatic flow guiding and rectifying system

Technical Field

The utility model belongs to the flow field is refined control, is fallen and hinders, energy-conserving field, concretely relates to no pneumatic water conservancy diversion of blade, rectification system.

Background

In order to optimize the flow field of the flue gas and pulverized coal pipeline of the thermal power plant and reduce the resistance, a mode of adding a plurality of groups of flow guide plates, flow equalizing plates or blades with different forms in the pipeline is generally adopted. However, the arrangement of the flow guide and equalization plates is often limited by the internal structure of the flue, so that the flow guide and equalization effect is influenced, the numerical simulation result is deviated, especially in a flue duct at a low-temperature section, the two surfaces of the blade are required to be subjected to anti-corrosion treatment, the construction difficulty is high, and the material consumption is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a no pneumatic water conservancy diversion of blade, rectification system, this system can effectual improvement water conservancy diversion, rectification precision, material saving.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a no blade pneumatic water conservancy diversion, rectification system, is including setting up a plurality of I type nozzle groups of group and the II type nozzle groups of a plurality of groups that set up the inner arc side at the flue at the inner arc side of flue, and I type nozzle group all links to each other with compressed air jar with II type nozzle group, and gas flow inlet department and gas flow outlet department all are provided with monitor table group in the flue.

The utility model discloses further improvement lies in that I type nozzle group and II type nozzle group link to each other with the compressed air jar through pipeline 7.

The utility model discloses further improvement lies in, is provided with valve unit 3 on the pipeline between I type nozzle group and the compressed air jar, is provided with valve unit 3 on the pipeline between I type nozzle group and the II type nozzle group 5.

The utility model discloses a further improvement lies in, I type nozzle group includes a plurality of groups shrink type nozzles.

The utility model discloses further improvement lies in, II type nozzle group includes a plurality of groups diffusion type nozzles.

The utility model discloses further improvement lies in that the valve unit includes a plurality of manual, pneumatic or electric valve.

The utility model discloses further improvement lies in, and the monitor table group includes a plurality of pressures, differential pressure transmitter.

The utility model discloses further improvement lies in, and the compressed air jar is a plurality of to set up the flue outside.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in through setting up I type nozzle group, II type nozzle group and monitoring instrument group, through monitoring instrument group real-time measuring resistance numerical value, the gas flow rate to suitable numerical value of high-speed district and low-speed district is realized to the regulation and control valves, reaches the purpose of flow field optimization. Pneumatic water conservancy diversion of no blade, rectifier system when concrete operation, can in time adjust the tolerance that gets into the nozzle according to the resistance data of real-time feedback, realize the purpose of flow field optimization. Compared with the conventional flow guide and rectifying plate or blade design, after the blades are omitted, the construction is convenient and simple, the appearance of the flue does not need to be modified, a large amount of materials and a construction period are saved, the real-time adjustability of flow field optimization is realized, the effect of the flow field optimization is closer to the result of numerical simulation, and the efficiency of the flow field optimization is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein, 1 is a flue, 2 is a compressed air tank, 3 is a control valve group, 4 is an I-type nozzle group, 5 is an II-type nozzle group, 6 is a monitoring instrument group, and 7 is a pipeline.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

in order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In addition, an element of the present invention may be said to be "secured to" or "disposed on" another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1, the bladeless pneumatic flow guiding and rectifying system of the present invention includes a compressed air tank 2, a control valve set 3, an I-type nozzle set 4, an II-type nozzle set 5, a monitor meter set 6 and a pipeline 7; wherein, a plurality of groups of I type nozzle groups 4 are arranged on the outer arc side of the flue 1, a plurality of groups of II type nozzle groups 5 are arranged on the inner arc side, the I type nozzle groups 4 and the II type nozzle groups 5 are connected with the compressed air tank 2 through a pipeline 7, a control valve group 3 is arranged on the pipeline between the I type nozzle group 4 and the compressed air tank 2, a control valve group 3 is arranged on the pipeline between the I type nozzle group 4 and the II type nozzle group 5, the control valve group 3 controls the amount of compressed air entering each group of nozzles, measuring points are respectively arranged at the front and the back of the flue 1, and the resistance change is monitored in real time through a monitor meter group 6.

The I-shaped nozzle group 4 is composed of a plurality of groups of contraction type nozzles forming a certain angle with the flue, compressed air is sprayed into the pipeline through the nozzles, and the flow velocity of the air flow in the area can be integrally improved due to the injection effect of the air flow.

The II-type nozzle group 5 consists of a plurality of groups of diffusion type nozzles forming a certain angle with the flue, compressed air is sprayed into the pipeline through the nozzles, and the flow velocity of the air flow in the area can be integrally reduced due to the diffusion effect of the air flow.

The monitoring instrument group 6 is respectively arranged at the front and the rear proper positions of the I-type nozzle group 4 and the II-type nozzle group 5 in the flue 1 and is used for monitoring the resistance change of the flue in real time.

The control valve group 3 is composed of a plurality of manual, pneumatic or electric valves. The control valve group 3 respectively controls and adjusts the air flow pressure, the air flow and the like of different nozzle groups through monitoring resistance parameters fed back by the instrument group 6 in real time.

The monitor meter group 6 is composed of a plurality of pressure and differential pressure transmitters.

The main reason for the turbulence of the airflow field in the pipeline is that when the airflow passes through irregular cross sections such as turning and reducing of the pipeline, a high-speed area and a low-speed area appear in the flow field, and the purpose of optimizing the flow field is to reduce the high-speed area and the low-speed area and enable the airflow speed of the whole pipeline to be close. After determining the region with disordered flow field of the pipeline by using a flow field numerical simulation tool or experimental measurement data, arranging a plurality of compressed air tanks 2 at proper positions outside the flue to be used as gas storage equipment, arranging a plurality of groups of I-type nozzle groups 4 in a high-speed region in the flue and arranging a plurality of groups of II-type nozzle groups 5 in a low-speed region. The resistance value measured by the monitor meter group 6 in real time is used for adjusting the control valve group 3 to realize that the gas flow velocity in the high-speed area and the gas flow velocity in the low-speed area reach a proper value, so that the purpose of flow field optimization is achieved.

The utility model discloses a flow field is disorderly regional in flue 1, sets up the nozzle group of the different structural style that a plurality of groups can adjust in real time, through drawing of air current respectively, diffusion phenomenon, improves the low-speed district air current velocity of flow, reduces the high-speed district air current velocity of flow, realizes the purpose of air current water conservancy diversion, rectification.

Compared with the conventional mode of increasing fixed diversion and rectification plates or blades in the optimized flow field, the utility model has the key points that the air flow velocity in the flow field can be adjusted in real time according to the monitoring data, thereby avoiding the defect that the fixed blade diversion and rectification plates cannot be easily replaced if the effect is poor after the fixed blade diversion and rectification plates are installed at one time, and having the advantages of small investment, simple construction, short period and material saving; the equipment is light and handy, need not consider hardly with the interference problem of flue inner structure.

The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed. However, all changes which come within the scope of the independent claims of the invention are to be embraced therein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Claims (8)

1. The utility model provides a no blade pneumatic water conservancy diversion, rectification system which characterized in that, is including setting up a plurality of I type nozzle groups (4) of group and setting up a plurality of II type nozzle groups (5) of group at the inner arc side of flue (1) of the inner arc side of flue (1), I type nozzle group (4) all link to each other with compressed air jar (2) with II type nozzle group (5), and flue (1) interior gas flow inlet department and gas flow outlet department all are provided with monitor table group (6).

2. The bladeless pneumatic flow guiding and rectifying system according to claim 1, wherein the type I nozzle set (4) and the type II nozzle set (5) are connected to the compressed air tank (2) through a pipeline (7).

3. The bladeless pneumatic flow guiding and rectifying system according to claim 2, wherein a control valve group (3) is arranged on a pipeline between the type I nozzle group (4) and the compressed air tank (2), and a control valve group (3) is arranged on a pipeline between the type I nozzle group (4) and the type II nozzle group (5).

4. The vaneless pneumatic flow guiding and rectifying system according to claim 1, wherein the group of I-nozzles (4) comprises several groups of convergent-type nozzles.

5. The bladeless pneumatic flow guiding and rectifying system according to claim 1, wherein the type II nozzle group (5) comprises a plurality of groups of diffusion type nozzles.

6. A bladeless pneumatic flow guiding, rectifying system according to claim 1, characterized in that the control valve group (3) comprises a number of manual, pneumatic or electric valves.

7. The bladeless pneumatic flow guiding and rectifying system according to claim 1, wherein the monitoring instrument cluster (6) comprises a plurality of pressure and differential pressure transmitters.

8. The bladeless pneumatic flow guiding and rectifying system according to claim 1, wherein the compressed air tank (2) is provided in plurality and outside the flue.

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