CN108506241A - A kind of control method of compressor anti-asthma valve - Google Patents
A kind of control method of compressor anti-asthma valve Download PDFInfo
- Publication number
- CN108506241A CN108506241A CN201810233328.6A CN201810233328A CN108506241A CN 108506241 A CN108506241 A CN 108506241A CN 201810233328 A CN201810233328 A CN 201810233328A CN 108506241 A CN108506241 A CN 108506241A
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- Prior art keywords
- compressor
- asthma valve
- power
- asthma
- valve opening
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0223—Control schemes therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0238—Details or means for fluid reinjection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/301—Pressure
- F05D2270/3011—Inlet pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/301—Pressure
- F05D2270/3013—Outlet pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of control methods of compressor anti-asthma valve.This method calculates the current operating condition theory surge power W of compressor by monitoring compressor inlet and outlet pressure and temperature1With compressor actual motion power W2, work as W2≥W1When, compressor normal work；Work as W2＜ W1When, surge occurs for compressor.Surge occurs for compressor, opens anti-asthma valve, and compressor outlet air-flow flows back into compressor inlet by anti-asthma valve, at this time W2Increase, W as anti-asthma valve opening increases2=W1, stop increasing anti-asthma valve opening at this time, compressor reaches normal operation, alarm adjusting system, and waiting system debugging after system debug, reduces anti-asthma valve opening.
Description
Technical field
The present invention relates to Compressor Technology fields, more particularly to a kind of control method of compressor anti-asthma valve.
Background technology
Compressor is one of the core of MVR systems, compressor whether can normal operation affect entire MVR systems.It avoids
The surge of compressor is an important factor for ensureing compression function normal operation.In industrial practice, the common control manually of people
The method of anti-asthma valve processed prevents compressor surge.1. it is big to manually control anti-asthma valve human factor, slow in reacting, cannot protect in time
Compressor；2. anti-asthma valve opening cannot be controlled reasonably, energy consumption of compressor is high, and efficiency is low.
Compressor surge basic reason is throttle flow deficiency, and actual motion shaft power is less than compressor theory surge shaft work
Rate.Aperture by controlling anti-asthma valve is compressor filling, increases the throttle flow of compressor, prevents compressor surge.Anti-asthma valve
Installation site is as shown in Figure 1.
In the process of running, compressor delivery pressure P2 is (as shown in Figure 1) to be more than Compressor Inlet Pressure P1 (such as to compressor
Shown in Fig. 1).Compressor occur surge when, open anti-asthma valve, air-flow by anti-asthma valve from high pressure (compressor outlet) return to it is low
At pressure (compressor inlet), it is compressor inlet tonifying Qi stream, increases compressor actual motion shaft power, prevent compressor surge.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of control methods of compressor anti-asthma valve.
The object of the present invention is achieved like this：
A kind of control method of compressor anti-asthma valve calculates compressor by monitoring compressor inlet and outlet pressure and temperature
Current operating condition theory surge power and compressor actual motion power,
The current operating condition theory surge horse-power formula of compressor：
W1=(K1*P2/P1-K2)*K3P1/T1
Wherein, W1：Current operating condition theory surge power, K1：Compressor fitting constant one, K2：Compressor fitting constant
Two, K3：Compressor fitting constant three, P1：Compressor Inlet Pressure, P2：Compressor delivery pressure, T1：Compressor Inlet Temperature；
Compressor actual motion horse-power formula：
W2=m*k/ (k-1) RT1[(Pr)(k-1)/k-1]/η
Wherein, W2：Currently practical operation shaft power, m：Mass flow, K：Specific heat ratio, R：Gas constant, η：Efficiency, T1：Pressure
Contracting machine intake air temperature, Pr：Pressure ratio；
Work as W2＜ W1When, surge occurs for compressor, opens anti-asthma valve, and compressor outlet air-flow flows back into pressure by anti-asthma valve
Contracting machine import, at this time W2Increase as anti-asthma valve opening increases, in t0Moment, anti-asthma valve reach a certain aperture, W2=W1, this
When stop increasing anti-asthma valve opening, compressor reaches normal operation, records current compressor actual motion power Wt0, alarm carries
Show adjusting system, waiting system debugging, in t1Moment records current compressor actual motion power Wt1, work as Wt1＞ Wt0, at this time
Proof system is adapted, reduces anti-asthma valve opening, at this time W2Reduce as anti-asthma valve opening reduces, in t2Moment works as W2=
W1When, stop reducing anti-asthma valve opening, and record current compressor actual motion power Wt2, at this time proof system adjusted
Examination, but fail to debug normal, alarm adjusting system completely, waiting system debugging, in t3Moment records current compressor reality
Border runs power Wt3, work as Wt3＞ Wt2, proof system is adapted at this time, reduces anti-asthma valve opening, at this time W2As anti-asthma valve is opened
Degree reduces and reduces, and so recycles, until anti-asthma valve opening is 0%, illustrates that compressor has been completely in normal operation at this time
Operating mode.
Preferably, include compressor, with the anti-asthma valve and programmable controller of compressor parallel, the compressor into
Mouth end setting Compressor Inlet Pressure detection device, Compressor Inlet Temperature detection device, the outlet end setting of the compressor
Compressor delivery pressure detection device, compressor exit temperature detection device, the anti-asthma valve, Compressor Inlet Pressure detection dress
Set, Compressor Inlet Temperature detection device, compressor delivery pressure detection device, compressor exit temperature detection device respectively with
Programmable controller connects, and the programmable controller calculates compressor and work as by monitoring compressor inlet and outlet pressure and temperature
Preceding operating condition theory surge power and compressor actual motion power, and then control the opening and closing of anti-asthma valve.
By adopting the above-described technical solution, the present invention has the advantages that：
Xun Su ﹑ are added more accurately to judge compressor surge 1. compressor anti-asthma valve automatically controls energy Geng；
2. compressor anti-asthma valve, which automatically controls, more rapid can make compressor surge reaction, prevent compressor from breathing heavily；
3. compressor anti-asthma valve automatically controls the aperture that can more accurately judge anti-asthma valve, make the fortune that compressor is more efficient
Row；
4. simple in structure, parts are few, and failure rate is low.
Description of the drawings
Fig. 1 is anti-asthma valve scheme of installation；
Fig. 2 is compressor surge boundary curve figure；
Fig. 3 is compressor actual motion shaft power；
Fig. 4 is anti-asthma valve control flow chart.
Specific implementation mode
A kind of control method of compressor anti-asthma valve, programmable controller is by monitoring compressor inlet and outlet pressure and temperature
Calculate the current operating condition theory surge power of compressor and compressor actual motion power.Its calculation formula is as follows
The current operating condition theory surge power of compressor
Formula 1：W1=(K1*P2/P1-K2)*K3P1/T1
W1：Current operating condition theory surge power (Kw)
K1：1 P of compressor fitting constant2：Compressor delivery pressure (Kpa)
K2：2 P of compressor fitting constant1：Compressor Inlet Pressure (Kpa)
K3：3 T of compressor fitting constant1：Compressor Inlet Temperature (K)
Its performance curve is as shown in Figure 2.
Compressor actual motion power
Formula 2：W2=m*k/ (k-1) RT1[(Pr)(k-1)/k-1]/η
W2：Currently practical operation shaft power (Kw) m：Mass flow (kg/s)
K：Specific heat ratio (H2O,1.33) R：Gas constant：461.4
η：Efficiency T1：Compressor inlet air temperatures
Pr：Pressure ratio (P2/P1)
As shown in Figure 3, work as W2≥W1When, W2In W1When curve lower right, compressor normal work；Work as W2＜ W1When, W2In W1
When curve upper left side, surge occurs for compressor.
1. working as W2≥W1When, compressor normal work, anti-asthma valve opening 0%.
2. working as W2＜ W1When, surge occurs for compressor.
Programmable controller automatic control compressor anti-asthma valve is opened and closed, and works as W2＜ W1When, surge occurs for compressor.Automatically it beats
Anti-asthma valve is opened, compressor outlet steam flows back into compressor inlet by anti-asthma valve, at this time W2With the increase of anti-asthma valve opening
Increase.In t0Moment, anti-asthma valve reach a certain aperture, W2=W1, stop increasing anti-asthma valve opening at this time, compressor reaches normal
Operation, programmable controller record current compressor actual motion power Wt0, alarm adjusting system.Waiting system is debugged,
Adjusting system is by manual adjustment, in t1Moment, programmable controller record current compressor actual motion power Wt1, work as Wt1＞
Wt0, proof system is adapted at this time, reduces anti-asthma valve opening, at this time W2Reduce as anti-asthma valve opening reduces.In t2When
It carves, works as W2=W1When, stop reducing anti-asthma valve opening, programmable controller records current compressor actual motion power Wt2,
Proof system is adapted at this time, but fails to debug normal, alarm adjusting system completely.Waiting system is debugged, in t3Moment,
Programmable controller records current compressor actual motion power Wt3, work as Wt3＞ Wt2, proof system is adapted at this time, subtracts
Small anti-asthma valve opening, at this time W2Reduce as anti-asthma valve opening reduces.So cycle, until anti-asthma valve opening is 0%, at this time
Illustrate that compressor has been completely in accidental conditions.When compressor surge occurs again, the above logic is repeated.It is controlled
Flow chart is as shown in Figure 4.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (2)
1. a kind of control method of compressor anti-asthma valve, it is characterised in that：By monitoring compressor inlet and outlet pressure and thermometer
The current operating condition theory surge power of compressor and compressor actual motion power are calculated,
The current operating condition theory surge horse-power formula of compressor：
W1=(K1*P2/P1-K2)*K3P1/T1
Wherein, W1：Current operating condition theory surge power, K1：Compressor fitting constant one, K2：Compressor fitting constant two,
K3：Compressor fitting constant three, P1：Compressor Inlet Pressure, P2：Compressor delivery pressure, T1：Compressor Inlet Temperature；
Compressor actual motion horse-power formula：
W2=m*k/ (k-1) RT1[(Pr)(k-1)/k-1]/η
Wherein, W2：Currently practical operation shaft power, m：Mass flow, K：Specific heat ratio, R：Gas constant, η：Efficiency, T1：Compressor
Intake air temperature, Pr：Pressure ratio；
Work as W2＜ W1When, surge occurs for compressor, opens anti-asthma valve, and compressor outlet air-flow flows back into compressor by anti-asthma valve
Import, at this time W2Increase as anti-asthma valve opening increases, in t0Moment, anti-asthma valve reach a certain aperture, W2=W1, stop at this time
Only increase anti-asthma valve opening, compressor reaches normal operation, records current compressor actual motion power Wt0, alarm tune
System, waiting system debugging, in t1Moment records current compressor actual motion power Wt1, work as Wt1＞ Wt0, prove at this time
System is adapted, reduces anti-asthma valve opening, at this time W2Reduce as anti-asthma valve opening reduces, in t2Moment works as W2=W1
When, stop reducing anti-asthma valve opening, and record current compressor actual motion power Wt2, proof system is adapted at this time,
But fail to debug normal, alarm adjusting system completely, waiting system debugging, in t3Moment records current compressor reality
Run power Wt3, work as Wt3＞ Wt2, proof system is adapted at this time, reduces anti-asthma valve opening, at this time W2With anti-asthma valve opening
Reduce and reduce, so recycle, until anti-asthma valve opening is 0%, illustrates that compressor has been completely in normal operation work at this time
Condition.
2. a kind of control method of compressor anti-asthma valve according to claim 1, which is characterized in that including compressor, with
The input end setting Compressor Inlet Pressure of the anti-asthma valve and programmable controller of compressor parallel, the compressor detects dress
It sets, Compressor Inlet Temperature detection device, the outlet end setting compressor delivery pressure detection device of the compressor, compressor
Outlet temperature detection device, the anti-asthma valve, Compressor Inlet Pressure detection device, Compressor Inlet Temperature detection device, pressure
Contracting machine outlet pressure detection device, compressor exit temperature detection device are connect with programmable controller respectively, described programmable
Controller calculates the current operating condition theory surge power of compressor and pressure by monitoring compressor inlet and outlet pressure and temperature
Contracting machine actual motion power, and then control the opening and closing of anti-asthma valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810233328.6A CN108506241B (en) | 2018-03-21 | 2018-03-21 | A kind of control method of compressor anti-asthma valve |
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| CN201810233328.6A CN108506241B (en) | 2018-03-21 | 2018-03-21 | A kind of control method of compressor anti-asthma valve |
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| CN108506241B CN108506241B (en) | 2019-09-06 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406042A (en) * | 2018-10-24 | 2019-03-01 | 四川长虹空调有限公司 | Transducer air conditioning pressure data approximating method |
| CN111577663A (en) * | 2020-05-25 | 2020-08-25 | 欧司特动力技术(江苏)有限公司 | Automatic surge-proof device of centrifugal compressor |
| CN112902023A (en) * | 2020-12-21 | 2021-06-04 | 重庆江增船舶重工有限公司 | Steam pipeline pressurization system and full-automatic control method thereof |
| CN113391656A (en) * | 2021-06-07 | 2021-09-14 | 国家石油天然气管网集团有限公司西气东输分公司 | Intelligent increase and decrease control method for compressor unit |
| CN113606156A (en) * | 2021-09-22 | 2021-11-05 | 重庆江增船舶重工有限公司 | Self-balancing anti-surge structure of steam compressor and control method |
| CN113946785A (en) * | 2021-10-18 | 2022-01-18 | 国家石油天然气管网集团有限公司 | Optimal energy consumption cost calculation system, energy consumption model and determination method and device thereof |
| CN114278603A (en) * | 2021-12-27 | 2022-04-05 | 浙江中控技术股份有限公司 | Compressor control system, method, device, equipment and storage medium |
| CN114278602A (en) * | 2022-01-05 | 2022-04-05 | 重庆江增船舶重工有限公司 | Surging and temperature coordinated control system of vapor compressor |
| CN114352499A (en) * | 2022-01-11 | 2022-04-15 | 重庆通用工业(集团)有限责任公司 | Air-supplementing mixed anti-surge control method for compressor |
| CN114837967A (en) * | 2022-05-06 | 2022-08-02 | 重庆江增船舶重工有限公司 | Automatic anti-surge method of multistage compressor |
| CN114962317A (en) * | 2022-05-14 | 2022-08-30 | 杭州德玛仕气体设备工程有限公司 | Anti-surge control method for tooth type single-stage and multi-stage centrifugal compressors |
| CN116221191A (en) * | 2023-05-06 | 2023-06-06 | 西门子能源有限公司 | Fluid compression system and method of controlling a fluid compression system |
| CN116771712A (en) * | 2023-08-23 | 2023-09-19 | 中粮生化(成都)有限公司 | Anti-asthma driving system and method for centrifugal compressor |
| CN116950931A (en) * | 2023-05-18 | 2023-10-27 | 中国船舶集团有限公司第七〇三研究所 | Adjustable compressor self-circulation casing treatment structure |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406042A (en) * | 2018-10-24 | 2019-03-01 | 四川长虹空调有限公司 | Transducer air conditioning pressure data approximating method |
| CN111577663A (en) * | 2020-05-25 | 2020-08-25 | 欧司特动力技术(江苏)有限公司 | Automatic surge-proof device of centrifugal compressor |
| CN112902023A (en) * | 2020-12-21 | 2021-06-04 | 重庆江增船舶重工有限公司 | Steam pipeline pressurization system and full-automatic control method thereof |
| CN113391656A (en) * | 2021-06-07 | 2021-09-14 | 国家石油天然气管网集团有限公司西气东输分公司 | Intelligent increase and decrease control method for compressor unit |
| CN113391656B (en) * | 2021-06-07 | 2022-06-28 | 国家石油天然气管网集团有限公司西气东输分公司 | Intelligent increase and decrease control method for compressor unit |
| CN113606156A (en) * | 2021-09-22 | 2021-11-05 | 重庆江增船舶重工有限公司 | Self-balancing anti-surge structure of steam compressor and control method |
| CN113946785A (en) * | 2021-10-18 | 2022-01-18 | 国家石油天然气管网集团有限公司 | Optimal energy consumption cost calculation system, energy consumption model and determination method and device thereof |
| CN114278603A (en) * | 2021-12-27 | 2022-04-05 | 浙江中控技术股份有限公司 | Compressor control system, method, device, equipment and storage medium |
| CN114278603B (en) * | 2021-12-27 | 2024-05-14 | 中控技术股份有限公司 | Compressor control system, method, device, equipment and storage medium |
| CN114278602B (en) * | 2022-01-05 | 2023-12-01 | 重庆江增船舶重工有限公司 | Surging and temperature coordination control system of steam compressor |
| CN114278602A (en) * | 2022-01-05 | 2022-04-05 | 重庆江增船舶重工有限公司 | Surging and temperature coordinated control system of vapor compressor |
| CN114352499A (en) * | 2022-01-11 | 2022-04-15 | 重庆通用工业(集团)有限责任公司 | Air-supplementing mixed anti-surge control method for compressor |
| CN114837967A (en) * | 2022-05-06 | 2022-08-02 | 重庆江增船舶重工有限公司 | Automatic anti-surge method of multistage compressor |
| CN114962317A (en) * | 2022-05-14 | 2022-08-30 | 杭州德玛仕气体设备工程有限公司 | Anti-surge control method for tooth type single-stage and multi-stage centrifugal compressors |
| CN114962317B (en) * | 2022-05-14 | 2023-12-19 | 杭州德玛仕气体设备工程有限公司 | Anti-surge control method for tooth type single-stage or multi-stage centrifugal compressor |
| CN116221191A (en) * | 2023-05-06 | 2023-06-06 | 西门子能源有限公司 | Fluid compression system and method of controlling a fluid compression system |
| CN116950931A (en) * | 2023-05-18 | 2023-10-27 | 中国船舶集团有限公司第七〇三研究所 | Adjustable compressor self-circulation casing treatment structure |
| CN116771712A (en) * | 2023-08-23 | 2023-09-19 | 中粮生化(成都)有限公司 | Anti-asthma driving system and method for centrifugal compressor |
| CN116771712B (en) * | 2023-08-23 | 2023-10-24 | 中粮生化(成都)有限公司 | Anti-asthma driving system and method for centrifugal compressor |
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|---|---|
| CN108506241B (en) | 2019-09-06 |
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