CN101354801A - Flow control valve and flow control method - Google Patents
Flow control valve and flow control method Download PDFInfo
- Publication number
- CN101354801A CN101354801A CNA200810126531XA CN200810126531A CN101354801A CN 101354801 A CN101354801 A CN 101354801A CN A200810126531X A CNA200810126531X A CN A200810126531XA CN 200810126531 A CN200810126531 A CN 200810126531A CN 101354801 A CN101354801 A CN 101354801A
- Authority
- CN
- China
- Prior art keywords
- flow
- valve
- air
- aperture
- flow capacity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0193—Control of flow without auxiliary power using hydraulic or pneumatic amplifiers, relays or transmitters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
Abstract
The invention provides a flow capacity control valve and a flow capacity control method for properly adjusting the flow capacity of the fluid. The valve (8) comprises a valve core (81) for processing the opening/closing adjustment for the flowing path of the fluid; a flow capacity sensor (82) for measuring the flow capacity of the fluid flowing by the path; a flow capacity operating portion (83) for operating the control quantity output by the control device as the flow capacity; an opening level adjusting portion (84) for adjusting the opening level of the valve core (81) to conform the flow capacity measured by the flow capacity sensor (82) to the flow capacity operated by the flow capacity operating portion (83).
Description
Technical field
The present invention relates to the flowrate control valve of using in a kind of air-conditioner control system etc., the flow control methods of flowrate control valve.
Background technology
In the air-conditioner control system of prior art, when indoor temperature or humidity are controlled, according to the humidity deviation between the temperature deviation between design temperature and the indoor temperature or setting humidity and the indoor humidity, utilize the PID computing to determine controlled quentity controlled variable, come the aperture of valve is regulated according to this controlled quentity controlled variable again, cold water or hot water supply are arrived air conditioner (for example, opening flat 11-211191 number with reference to the open communique spy of Japanese patent of invention).
In the air-conditioner control system of prior art, when air conditioner, pipe arrangement, the valve of not selecting capacity and air-conditioning load to be complementary, and when having selected the bigger air conditioner of capacity, pipe arrangement, valve, if adopt by the determined controlled quentity controlled variable of PID computing to come the aperture of valve is regulated in this case, then can there be the cold water that circulates in the air conditioner or the excessive such problem of flow of hot water.There are the following problems in addition: the caused excessive control of excessive flow (excessively refrigeration, excessively heat) and to this excessively the control carried out of control can alternately work and cause the vibration of control, and the operational efficiency that excessive flow can cause exporting the heat source machine of cold water or hot water reduces.The problems referred to above point is not limited to air-conditioner control system, so long as the system that adopts the valve fluid flow to control all same problem may occur.
Summary of the invention
The present invention makes in order to solve above-mentioned problem, and purpose is to provide a kind of flowrate control valve and the flow control methods that can suitably regulate the fluid flow of the air conditioner even load machine of flowing through.
Flowrate control valve of the present invention has the spool that stream that convection cell flows into opens and closes adjusting, and regulate the flow of described fluid by the aperture of regulating this spool, described flowrate control valve comprises: flow rate conversion mechanism, and its controlled quentity controlled variable with described control device output is scaled flow; Flow-metering mechanism, its flow to the fluid of the described stream of flowing through is measured; The aperture governor motion, its aperture to described spool is regulated, so that the circulation flow that this flow-metering mechanism is measured is consistent with the flow that described flow rate conversion mechanism converses.
Flow control methods of the present invention comprises: the flow rate conversion step: the controlled quentity controlled variable of described control device output is scaled flow; The flow measurement step: the flow to the fluid of the described stream of flowing through is measured; The aperture regulating step: the aperture to described spool is regulated, so that the circulation flow of measuring in this flow measurement step is consistent with the flow that converses in described flow rate conversion step.
The invention effect
Adopt the present invention, flowrate control valve calculates the flow that the controlled quentity controlled variable output valve with control device is complementary, come the aperture of spool is regulated with this, so that the circulation flow of the fluid of measuring is consistent with the flow that calculates, can suitably regulate the fluid flow of the air conditioner even load machine of flowing through thus.Therefore, the present invention can make the control that causes because of excessive flow vibration be improved significantly.In addition, in the time of in flowrate control valve of the present invention being applied to air-conditioning control, also can make situation that the operational efficiency of the heat source machine of output cold water or hot water (fluid) reduces be improved significantly.
Description of drawings
Fig. 1 is the structured flowchart of air-conditioner control system in the expression embodiment of the present invention.
Fig. 2 is the structured flowchart of the valve in the air-conditioner control system of illustration Fig. 1.
Fig. 3 is the process flow diagram of the action of the air conditioning control device in the air-conditioner control system of illustration Fig. 1.
Fig. 4 is the process flow diagram of the action of the valve in the air-conditioner control system of presentation graphs 1.
Fig. 5 is the figure of the relation between controlled quentity controlled variable and the flow in the illustration present embodiment.
Symbol description
1: heat source machine, 2: pump, 3: the water supply collector, 4: supply channel, 5: air conditioner, 6: water return pipeline, 7: backwater collector, 8: valve, 9: the feed air temperature sensor, 10: air conditioning control device, 11: coil pipe, 12: fan blower, 80: valve body, 81: spool, 82: flow sensor, 83: flow rate conversion portion, 84: the aperture adjusting portion.
Embodiment
Below, with reference to accompanying drawing embodiments of the present invention are described.Fig. 1 is the structured flowchart of air-conditioner control system in the expression embodiment of the present invention.
Among Fig. 1, Reference numeral 1 expression is used to export the heat source machine of heating agents such as cold water or hot water; The pump that Reference numeral 2 expressions are carried the cold water or the hot water of heat source machine 1 output; The water supply collector that Reference numeral 3 expressions mix cold water or hot water from these a plurality of heat source machines 1; Reference numeral 4 expression supply channels; Reference numeral 5 expression air conditioners receive from water supply collector 3 via the cold water of supply channel 4 conveyings or the supply of hot water; Reference numeral 6 expression water return pipelines; Reference numeral 7 expression backwater collectors, cold water or hot water in air conditioner 5 by heat interchange after send by water return pipeline 6, return the original place again; The valve that Reference numeral 8 expression is controlled the flow of the cold water that supplies to air conditioner 5 from water supply collector 3 or hot water; The feed air temperature sensor that the temperature of the air feed that Reference numeral 9 expression is sent air conditioner 5 is measured; Reference numeral 10 expression air conditioning control devices; The coil pipe of Reference numeral 11 expression air conditioners 5; Reference numeral 12 expression fan blowers.
After being pressurizeed by pump 2 and being cooled off by heat source machine 1 or heat, heating agent mixes in water supply collector 3, supplies with to air conditioner 5 via supply channel 4, and air conditioner 5 backs of flowing through are delivered to backwater collector 7 as backwater by water return pipeline 6, next, are sent by pump 2 pressurizations once more.Heating agent circulates along above-mentioned path like this.For example when heat source machine 1 moved as refrigerating machine, heating agent was a cold water, and when heat source machine 1 moved as heater, heating agent was a hot water.
11 pairs in the coil pipe that air conditioner 5 utilizes cold water or flow of hot water warp returns air-conditioner control system from air-conditioning control area indoor air (return-air) cools off with the mixed gas of outside air or heats, and utilizes the air feed after fan blower 12 will cool off or heat to send into the indoor of air-conditioning control area.
The feature part of present embodiment is: valve 8 has the flow measurement function, receive the controlled quentity controlled variable output valve of air conditioning control device 10, the flow that union and this controlled quentity controlled variable output valve are complementary, aperture to valve 8 self is regulated, so that the valve of measuring circulation flow is consistent with the flow that calculates.
Fig. 2 is the structured flowchart of illustration valve 8.Valve 8 comprises: valve body 80, and it forms the stream for the cold water of the air conditioner 5 of flowing through or hot water inflow; The spool 81 that flow path opens and closes; Flow sensor (flow-metering mechanism) 82, it is measured the cold water of the stream of flowing through or the flow of hot water; Flow rate conversion portion 83, its controlled quentity controlled variable with air conditioning control device 10 outputs is scaled flow; Aperture adjusting portion 84, the flow value that flow value that it converses according to flow rate conversion portion 83 and flow sensor 82 are measured is regulated the aperture of spool 81.
Below, the action of the air-conditioner control system of present embodiment is described.Fig. 3 is the process flow diagram of the action of expression air conditioning control device 10.Fig. 4 is the process flow diagram of the action of expression valve 8.
At first, air conditioning control device 10 receives the feed air temperature signal (the step S1 among Fig. 3) of the feed air temperature of representing that feed air temperature sensor 9 is measured.
Then, 10 pairs of air conditioners 5 of air conditioning control device are controlled, so that the desired temperature that the feed air temperature that feed air temperature sensor 9 is measured and operator or indoor resident set is consistent.That is, air conditioning control device 10 for example comes calculation control amount (step S2) with the PID computing according to the deviation of desired temperature and feed air temperature, and the controlled quentity controlled variable of calculating is exported to valve 8 (step S3).
Above-mentioned processing shown in Figure 3 is carried out repeatedly, up to air-conditioner control system quit work (step S4 is YES among Fig. 3).
In addition, also can utilize humidity sensor (not shown) to measure the humidity of air feed, air conditioning control device 10 comes the calculation control amount according to the deviation of humidity set point and current air feed humidity.
Next, the flow rate conversion portion 83 of valve 8 receives the controlled quentity controlled variable signal (step S10 among Fig. 4) of the controlled quentity controlled variable of expression air conditioning control device 10 outputs.Flow rate conversion portion 83 is scaled flow value (step S11) with the controlled quentity controlled variable that receives.Flow rate conversion portion 83 inside store relation between illustrative controlled quentity controlled variable of Fig. 5 and the flow in advance in the mode of form or formula.Flow rate conversion portion 83 comes calculated flow rate according to this relation of storing in advance from controlled quentity controlled variable.
The design maximum flow value of air conditioner 5 even load machines according to the capacity that comprises the load machine of valve 8, the load capacity of carrying out the object space that air-conditioning handles calculates.Making this design maximum flow is the flow that controlled quentity controlled variable was in 100% o'clock.Suppose that the function (discharge characteristic) that concerns between the design discharge of expression controlled quentity controlled variable and load machine is linear relation shown in Figure 5, then flow rate conversion portion 85 also can to utilize described design maximum flow value and controlled quentity controlled variable be that 0% o'clock flow value 0 is asked function, and this function is stored in the storage part in the flow rate conversion portion 83 in advance.
The cold water of 82 pairs of streams of flowing through of flow sensor of valve 8 or the flow of hot water (the circulation flow in the valve) are measured, and aperture adjusting portion 84 receives the flow signal (step S12) of the circulation flow in the valve of representing 82 measurements of stream sensor.Then, the aperture of 84 pairs of spools 81 of aperture adjusting portion is regulated, so that the circulation stream value consistent with the flow value that flow rate conversion portion 83 converses (step S13) in the valve that flow sensor 82 is measured.
Above-mentioned processing shown in Fig. 4 is carried out repeatedly, up to air-conditioner control system quit work (step S14 is YES among Fig. 4).
In the present embodiment, valve 8 calculates with the controlled quentity controlled variable of air conditioning control device 10 and exports the flow that is complementary, and the aperture of spool 81 is regulated, so that the circulation flow in the valve of measuring is consistent with the flow that calculates.Thus, can to the cold water of the air conditioner 5 of flowing through or, the flow of hot water suitably regulates.Therefore, the situation that present embodiment can reduce because of the vibration that makes the control that excessive flow causes and heat source machine 1 operational efficiency be improved significantly, can be better controlled air-conditioning.
By computing machine with CPU, memory storage, interface and the program that these hardware resources are controlled, can realize the function of the air conditioning control device 10 described in the present embodiment.Equally, also can realize the flow rate conversion portion 83 of valve 8 and the function of aperture adjusting portion 84 by computing machine and program.The CPU of these computing machines carries out the processing that illustrates in the embodiment according to the program that is stored in each memory storage.
In addition, in the present embodiment, the situation that is applied in air-conditioner control system with flowrate control valve is that example is illustrated, but the present invention is not limited to this, so long as the system that adopts flowrate control valve to come fluid flow to regulate all can be suitable for this flowrate control valve equally.
The present invention is applicable to flowrate control valve.
Claims (2)
1. flowrate control valve, it has the spool that stream that convection cell flows into opens and closes adjusting, and regulates the flow of described fluid by the aperture of regulating this spool, it is characterized in that,
Described flowrate control valve comprises:
Flow rate conversion mechanism, its controlled quentity controlled variable with control device output is scaled flow;
Flow-metering mechanism, its flow to the fluid of the described stream of flowing through is measured;
The aperture governor motion, its aperture to described spool is regulated, so that the circulation flow that this flow-metering mechanism is measured is consistent with the flow that described flow rate conversion mechanism converses.
2. flow control methods, this method is: opens and closes in the flowrate control valve of spool of adjusting having stream that convection cell flows into, regulates the flow of described fluid, it is characterized in that by the aperture of regulating spool,
Described flow control methods comprises:
Flow rate conversion step: the controlled quentity controlled variable of described control device output is scaled flow;
The flow measurement step: the flow to the fluid of the described stream of flowing through is measured;
The aperture regulating step: the aperture to described spool is regulated, so that the circulation flow of measuring in this flow measurement step is consistent with the flow that converses in described flow rate conversion step.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007192428A JP2009031866A (en) | 2007-07-24 | 2007-07-24 | Flow control valve and flow control method |
| JP2007192428 | 2007-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101354801A true CN101354801A (en) | 2009-01-28 |
Family
ID=40307600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810126531XA Pending CN101354801A (en) | 2007-07-24 | 2008-06-24 | Flow control valve and flow control method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2009031866A (en) |
| KR (1) | KR20090010889A (en) |
| CN (1) | CN101354801A (en) |
| TW (1) | TW200907619A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228996A (en) * | 2010-11-17 | 2013-07-31 | 贝利莫控股公司 | Device and method for controlling opening of valve in heating ventilation air conditioning (HVAC) system |
| CN104350443A (en) * | 2012-05-31 | 2015-02-11 | 株式会社富士金 | Flow volume control device equipped with build-down system flow volume monitor |
| CN104500811A (en) * | 2014-12-10 | 2015-04-08 | 西南铝业（集团）有限责任公司 | Emulsion flow rate control system |
| CN110090601A (en) * | 2018-11-22 | 2019-08-06 | 云南驰宏国际锗业有限公司 | The feeding mechanism and its control system of a kind of germanium tetrachloride hydrolysis device and application |
| CN110274670A (en) * | 2019-06-18 | 2019-09-24 | 上海市供水水表强制检定站有限公司 | A kind of antidote and its system of watermeter flowing rate control valve |
| CN112068610A (en) * | 2020-09-23 | 2020-12-11 | 杭州振华仪表有限公司 | Pressure balance electromagnetic flowmeter, flow control system and flow control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI423363B (en) * | 2009-10-26 | 2014-01-11 | Nat Univ Chin Yi Technology | Testing platform and method for properties of process cooling machine |
| JP5526716B2 (en) * | 2009-11-12 | 2014-06-18 | 富士通株式会社 | Air conditioning system |
| ES2632004T3 (en) | 2011-10-25 | 2017-09-07 | Lg Electronics Inc. | Air conditioning and its operation procedure |
| KR101266107B1 (en) | 2011-10-25 | 2013-05-27 | 엘지전자 주식회사 | Air conditioner and Control method of the same |
| JP6116093B2 (en) * | 2013-07-01 | 2017-04-19 | 株式会社日立製作所 | Heat source system |
| KR20150108578A (en) * | 2014-03-18 | 2015-09-30 | 가부시키가이샤 어드밴티스트 | Temperature control apparatus and test system |
| CN105066358B (en) * | 2015-08-17 | 2018-03-23 | 荏原冷热系统（中国）有限公司 | A kind of air-conditioner set automatically adjusts the method and system of temperature |
| JP6727452B2 (en) | 2017-09-22 | 2020-07-22 | 三菱電機株式会社 | Air conditioner |
| TWI774227B (en) * | 2020-02-21 | 2022-08-11 | 日商富士金股份有限公司 | Flow rate control device, control method thereof and control program thereof |
| CN113374880B (en) * | 2021-06-15 | 2022-11-29 | 上海市计量测试技术研究院 | Device and method for adjusting flow velocity of ozonized gas in ozone aging box |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0784649A (en) * | 1993-09-14 | 1995-03-31 | Kitz Corp | Flow rate control unit having both of constant flow rate function and variable flow rate function |
| JP3254627B2 (en) * | 1998-01-30 | 2002-02-12 | 株式会社山武 | Air conditioning control system |
| JPH11353033A (en) * | 1998-06-05 | 1999-12-24 | Japan Organo Co Ltd | Temperature control system of indirect heating type |
| JP2001182971A (en) * | 1999-12-24 | 2001-07-06 | Hitachi Ltd | Air conditioning system and its control method |
| JP3417391B2 (en) * | 2000-09-07 | 2003-06-16 | 日立金属株式会社 | Flow control method |
-
2007
- 2007-07-24 JP JP2007192428A patent/JP2009031866A/en active Pending
-
2008
- 2008-06-24 CN CNA200810126531XA patent/CN101354801A/en active Pending
- 2008-07-03 TW TW097125116A patent/TW200907619A/en unknown
- 2008-07-11 KR KR1020080067377A patent/KR20090010889A/en active Search and Examination
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228996A (en) * | 2010-11-17 | 2013-07-31 | 贝利莫控股公司 | Device and method for controlling opening of valve in heating ventilation air conditioning (HVAC) system |
| CN103228996B (en) * | 2010-11-17 | 2015-12-16 | 贝利莫控股公司 | For controlling the apparatus and method of the aperture of the valve in heating ventilation and air-conditioning system |
| US9631831B2 (en) | 2010-11-17 | 2017-04-25 | Bilimo Holding Ag | Method for controlling the opening of an HVAC valve based on the energy-per-flow gradient |
| CN104350443A (en) * | 2012-05-31 | 2015-02-11 | 株式会社富士金 | Flow volume control device equipped with build-down system flow volume monitor |
| CN104500811A (en) * | 2014-12-10 | 2015-04-08 | 西南铝业（集团）有限责任公司 | Emulsion flow rate control system |
| CN110090601A (en) * | 2018-11-22 | 2019-08-06 | 云南驰宏国际锗业有限公司 | The feeding mechanism and its control system of a kind of germanium tetrachloride hydrolysis device and application |
| CN110274670A (en) * | 2019-06-18 | 2019-09-24 | 上海市供水水表强制检定站有限公司 | A kind of antidote and its system of watermeter flowing rate control valve |
| CN112068610A (en) * | 2020-09-23 | 2020-12-11 | 杭州振华仪表有限公司 | Pressure balance electromagnetic flowmeter, flow control system and flow control method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090010889A (en) | 2009-01-30 |
| JP2009031866A (en) | 2009-02-12 |
| TW200907619A (en) | 2009-02-16 |
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Open date: 20090128 |