CN113217363A - Air inlet adjusting device of multi-path control air compressor - Google Patents

Air inlet adjusting device of multi-path control air compressor Download PDF

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Publication number
CN113217363A
CN113217363A CN202110416954.0A CN202110416954A CN113217363A CN 113217363 A CN113217363 A CN 113217363A CN 202110416954 A CN202110416954 A CN 202110416954A CN 113217363 A CN113217363 A CN 113217363A
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CN
China
Prior art keywords
air
air inlet
pipeline
air compressor
control valve
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Pending
Application number
CN202110416954.0A
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Chinese (zh)
Inventor
吴思明
王文发
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Huahai Beijing Technology Co ltd
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Huahai Beijing Technology Co ltd
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Publication date
Application filed by Huahai Beijing Technology Co ltd filed Critical Huahai Beijing Technology Co ltd
Priority to CN202110416954.0A priority Critical patent/CN113217363A/en
Publication of CN113217363A publication Critical patent/CN113217363A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, 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
    • F04B49/22Control, 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 by means of valves
    • F04B49/225Control, 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 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, 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
    • F04B49/22Control, 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 by means of valves
    • F04B49/24Bypassing

Abstract

The invention relates to the technical field of air compressors and discloses an air inlet adjusting device of a multi-path control air compressor, which comprises a first main pipeline and a second main pipeline, wherein a first air inlet pipeline and a second air inlet pipeline are fixed between the first main pipeline and the second main pipeline; according to the invention, single-path air inlet control is changed into two-path or more-path control modes, so that the control precision of air inlet amount is improved, the emptying loss is reduced, the energy consumption of the air compressor is reduced, the pollution of noise to the environment is reduced, the loading and unloading frequency of the air compressor is reduced, and the integral service life of the air compressor is prolonged.

Description

Air inlet adjusting device of multi-path control air compressor
Technical Field
The invention relates to the technical field of air compressors, in particular to an air inlet adjusting device of a multi-path control air compressor.
Background
Compressed air has wide application in the industrial field, and an air compressor is a main device for producing compressed air. After the dust of the normal pressure air is removed by the filter, the air enters the air compressor to be compressed to become air with certain pressure, and then the air is processed by the processes of dewatering, deoiling, impurity removal, drying and the like to become purified air which is supplied to downstream users for use. Common types of air compressors are piston type, screw type, centrifugal type, etc. All air compressor machine entrances have adjusting device that admits air, are used for controlling the air input size, and when the downstream user demand changes, adjusting device starts work that admits air, through the mode of automatic control valve opening, increases or reduces the air input, guarantees the air compressor machine normal operating.
Various types of air compressor machine adjusting device that admits air at present is the one way control of admitting air: when the downstream air user demand is increased or decreased, the automatic control valve (or the air inlet guide vane) increases or decreases the opening degree, and accordingly the air passing capacity in the pipeline is increased or decreased. Although the adjusting range can cover 0-100% of the area, the adjusting precision is poor, and the automatic control valve (or the air inlet guide vane) moves each time, so that the flow is greatly fluctuated, and certain impact is caused to the operation of the air compressor. Meet the operating mode that the air quantity reduces suddenly, adjust timely and accurate inadequately, the unnecessary compressed air that produces can only be emptied through the blow-off valve, therefore compressor energy consumption loss is big, brings the noise problem that the blow-off produced simultaneously, because the air input is adjusted the inaccuracy moreover, can lead to the problem of the frequent loading of air compressor machine and uninstallation, has reduced the whole life-span of air compressor machine.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multi-path control air inlet adjusting device of an air compressor, which solves the problems in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a multi-path control air compressor air inlet adjusting device comprises a first main pipeline and a second main pipeline, wherein a first air inlet pipeline and a second air inlet pipeline are fixed between the first main pipeline and the second main pipeline, a first manual control valve, a first stop valve and a first automatic control valve are sequentially fixed on the outer surface of the first air inlet pipeline from left to right, a second manual control valve, a second stop valve and a second automatic control valve are sequentially fixed on the outer surface of the second air inlet pipeline from left to right, and a flow meter is fixed on the outer surface of the second main pipeline.
Preferably, a first branch pipeline is fixed to an outer surface of the first intake pipeline, two ends of the first branch pipeline are respectively located on the left side of the first stop valve and the right side of the first automatic control valve, and a third stop valve is fixed to an outer surface of the first branch pipeline.
Preferably, a second branch pipeline is fixed on the outer surface of the second air inlet pipeline, two ends of the second branch pipeline are respectively located on the left side of the second stop valve and the right side of the second automatic control valve, and a fourth stop valve is fixed on the outer surface of the second branch pipeline.
(III) advantageous effects
The invention provides an air inlet adjusting device of a multi-path control air compressor, which has the following beneficial effects:
according to the invention, single-path air inlet control is changed into two-path or more-path control modes, so that the control precision of air inlet amount is improved, the emptying loss is reduced, the energy consumption of the air compressor is reduced, the pollution of noise to the environment is reduced, the loading and unloading frequency of the air compressor is reduced, and the integral service life of the air compressor is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a first main pipeline; 2. a first air intake line; 3. a first manually controlled valve; 4. a first shut-off valve; 5. a third stop valve; 6. a first automatic control valve; 7. a first branch line; 8. a flow meter; 9. a second main pipeline; 10. a second automatic control valve; 11. a second branch pipe; 12. a fourth stop valve; 13. a second stop valve; 14. a second manual control valve; 15. a second inlet line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a technical solution: a multi-path control air inlet adjusting device of an air compressor comprises a first main pipeline 1 and a second main pipeline 9, a first air inlet pipeline 2 and a second air inlet pipeline 15 are fixed between the first main pipeline 1 and the second main pipeline 9, a first manual control valve 3, a first stop valve 4 and a first automatic control valve 6 are sequentially fixed on the outer surface of the first air inlet pipeline 2 from left to right, a second manual control valve 14, a second stop valve 13 and a second automatic control valve 10 are sequentially fixed on the outer surface of the second air inlet pipeline 15 from left to right, a flow meter 8 is fixed on the outer surface of the second main pipeline 9, under the normal working state of the air compressor, when the air consumption of a downstream user is continuously reduced, the tail end exhaust pressure is continuously increased, when the set starting emptying pressure of an emptying valve is about to be reached, one of the first automatic control valve 6 and the second automatic control valve 10 starts to automatically adjust the inlet air flow, the specific adjustment mode is as follows: one of the two is specified, for example, the first automatic control valve 6 is continuously reduced in opening degree to reduce the intake air amount until the intake air amount is completely closed, if the requirement of reducing the inlet air amount cannot be met at the moment, the second automatic control valve 10 is started to be gradually reduced in opening degree until the intake air amount is completely closed, and the compressor is unloaded or stopped; when the air compressor is in a normal working state, when the air consumption of a downstream user is continuously increased, the exhaust pressure of the air compressor starts to be reduced, one of the first automatic control valve 6 and the second automatic control valve 10 is appointed, for example, the first automatic control valve 6 starts to increase the opening degree and increase the air inflow, when the first automatic control valve is completely opened, the air production still cannot meet the requirements of the user, and the second automatic control valve 10 is continuously started until the air compressor is completely opened; when the first automatic valve 6 or the second automatic valve 10 has a fault and cannot work normally, the air compressor is manually operated on site, the third stop valve 5 or the fourth stop valve 12 is opened, the first stop valve 4 or the second stop valve 14 is closed, the first automatic valve 6 or the second automatic valve 10 is isolated out of the device, and the air inlet adjustment requirement of the air compressor is met in a mode of the opening degree of the first manual valve 3 or the second manual valve 14; under the normal working state of the air compressor, the flow meter 8 monitors the air flow at any time, and displays the air flow value on a display screen of the air compressor controller to provide reference for controlling the inlet air flow.
Furthermore, a first branch pipeline 7 is fixed on the outer surface of the first air inlet pipeline 2, two ends of the first branch pipeline 7 are respectively positioned on the left side of the first stop valve 4 and the right side of the first automatic control valve 6, and a third stop valve 5 is fixed on the outer surface of the first branch pipeline 7, so that the first automatic control valve 6 can be conveniently isolated from the device.
Furthermore, a second branch pipeline 11 is fixed on the outer surface of the second air inlet pipeline 15, two ends of the second branch pipeline 11 are respectively located on the left side of the second stop valve 13 and the right side of the second automatic control valve 10, and a fourth stop valve 12 is fixed on the outer surface of the second branch pipeline 11, so that the second automatic control valve 10 can be conveniently isolated.
In conclusion, the working process of the invention is as follows: under the normal working state of the air compressor, when the air consumption of a downstream user is continuously reduced and the tail end exhaust pressure is continuously increased, namely the set starting emptying pressure of the emptying valve is about to reach, one of the first automatic control valve 6 and the second automatic control valve 10 starts to automatically adjust the inlet air flow, and the specific adjusting mode is as follows: one of the two is specified, for example, the first automatic control valve 6 is continuously reduced in opening degree to reduce the intake air amount until the intake air amount is completely closed, if the requirement of reducing the inlet air amount cannot be met at the moment, the second automatic control valve 10 is started to be gradually reduced in opening degree until the intake air amount is completely closed, and the compressor is unloaded or stopped; when the air compressor is in a normal working state, when the air consumption of a downstream user is continuously increased, the exhaust pressure of the air compressor starts to be reduced, one of the first automatic control valve 6 and the second automatic control valve 10 is appointed, for example, the first automatic control valve 6 starts to increase the opening degree and increase the air inflow, when the first automatic control valve is completely opened, the air production still cannot meet the requirements of the user, and the second automatic control valve 10 is continuously started until the air compressor is completely opened; when the first automatic valve 6 or the second automatic valve 10 has a fault and cannot work normally, the air compressor is manually operated on site, the third stop valve 5 or the fourth stop valve 12 is opened, the first stop valve 4 or the second stop valve 14 is closed, the first automatic valve 6 or the second automatic valve 10 is isolated out of the device, and the air inlet adjustment requirement of the air compressor is met in a mode of the opening degree of the first manual valve 3 or the second manual valve 14; under the normal working state of the air compressor, the flow meter 8 monitors the air flow at any time, and displays the air flow value on a display screen of the air compressor controller to provide reference for controlling the inlet air flow.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides a multichannel control air compressor machine adjusting device that admits air, includes first main pipeline (1) and second main pipeline (9), its characterized in that: a first air inlet pipeline (2) and a second air inlet pipeline (15) are fixed between the first main pipeline (1) and the second main pipeline (9), a first manual control valve (3), a first stop valve (4) and a first automatic control valve (6) are sequentially fixed on the outer surface of the first air inlet pipeline (2) from left to right, a second manual control valve (14), a second stop valve (13) and a second automatic control valve (10) are sequentially fixed on the outer surface of the second air inlet pipeline (15) from left to right, and a flow meter (8) is fixed on the outer surface of the second main pipeline (9).
2. The air inlet adjusting device of the multi-path control air compressor as claimed in claim 1, wherein: and a first branch pipeline (7) is fixed on the outer surface of the first air inlet pipeline (2), two ends of the first branch pipeline (7) are respectively positioned on the left side of the first stop valve (4) and the right side of the first automatic control valve (6), and a third stop valve (5) is fixed on the outer surface of the first branch pipeline (7).
3. The air inlet adjusting device of the multi-path control air compressor as claimed in claim 1, wherein: and a second branch pipeline (11) is fixed on the outer surface of the second air inlet pipeline (15), two ends of the second branch pipeline (11) are respectively positioned on the left side of the second stop valve (13) and the right side of the second automatic control valve (10), and a fourth stop valve (12) is fixed on the outer surface of the second branch pipeline (11).
CN202110416954.0A 2021-04-19 2021-04-19 Air inlet adjusting device of multi-path control air compressor Pending CN113217363A (en)

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Application Number Priority Date Filing Date Title
CN202110416954.0A CN113217363A (en) 2021-04-19 2021-04-19 Air inlet adjusting device of multi-path control air compressor

Publications (1)

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CN113217363A true CN113217363A (en) 2021-08-06

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2049823A (en) * 1979-05-22 1980-12-31 Bosch Gmbh Robert Improvements in or Relating to Systems for Producing Compressed Air
CN202493900U (en) * 2012-01-19 2012-10-17 朱启兵 Pressure flow regulation device
CN203756487U (en) * 2014-03-18 2014-08-06 重庆埃泰克能源科技有限公司 Intelligent control system through compressed air flow
CN203890068U (en) * 2014-05-24 2014-10-22 智胜化工股份有限公司 Inlet air adjusting device of food CO2 dealkylation tower
CN104746376A (en) * 2015-04-17 2015-07-01 陕西科技大学 Compressed air blast based head-box air inlet control system and method
CN106151880A (en) * 2016-08-29 2016-11-23 安徽伏斯特智能科技股份有限公司 A kind of low discharge regulation system and control method thereof
CN211423999U (en) * 2019-10-23 2020-09-04 中国石油化工股份有限公司 Reciprocating compressor loading system and natural gas conveying pipeline
CN212539297U (en) * 2020-05-26 2021-02-12 爱景节能科技(上海)有限公司 Intelligent flow metering device for compressed air

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2049823A (en) * 1979-05-22 1980-12-31 Bosch Gmbh Robert Improvements in or Relating to Systems for Producing Compressed Air
CN202493900U (en) * 2012-01-19 2012-10-17 朱启兵 Pressure flow regulation device
CN203756487U (en) * 2014-03-18 2014-08-06 重庆埃泰克能源科技有限公司 Intelligent control system through compressed air flow
CN203890068U (en) * 2014-05-24 2014-10-22 智胜化工股份有限公司 Inlet air adjusting device of food CO2 dealkylation tower
CN104746376A (en) * 2015-04-17 2015-07-01 陕西科技大学 Compressed air blast based head-box air inlet control system and method
CN106151880A (en) * 2016-08-29 2016-11-23 安徽伏斯特智能科技股份有限公司 A kind of low discharge regulation system and control method thereof
CN211423999U (en) * 2019-10-23 2020-09-04 中国石油化工股份有限公司 Reciprocating compressor loading system and natural gas conveying pipeline
CN212539297U (en) * 2020-05-26 2021-02-12 爱景节能科技(上海)有限公司 Intelligent flow metering device for compressed air

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