DE19912579C2 - Process for operating a heating, ventilation or air conditioning system - Google Patents
Process for operating a heating, ventilation or air conditioning systemInfo
- Publication number
- DE19912579C2 DE19912579C2 DE19912579A DE19912579A DE19912579C2 DE 19912579 C2 DE19912579 C2 DE 19912579C2 DE 19912579 A DE19912579 A DE 19912579A DE 19912579 A DE19912579 A DE 19912579A DE 19912579 C2 DE19912579 C2 DE 19912579C2
- Authority
- DE
- Germany
- Prior art keywords
- pump
- pump drive
- speed
- control
- input signal
- 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.)
- Revoked
Links
- 238000000034 method Methods 0.000 title claims description 10
- 238000004378 air conditioning Methods 0.000 title claims description 8
- 238000010438 heat treatment Methods 0.000 title claims description 8
- 238000009423 ventilation Methods 0.000 title claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0209—Rotational speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Betreiben einer Heizungs-, Lüftungs- oder Klimaanlage, die eine Pumpe oder ein Gebläse mit einem drehzahlgeregelten Pumpenantrieb und ein Rohrsystem mit Regelarmaturen aufweist, wobei der Pum penantrieb mit einem Mikroprozessor ausgerüstet ist, der nach Maßgabe eines Eingangssignals die Drehzahl des Pumpen antriebs steuert, und wobei die Regelarmaturen Stellan triebe aufweisen, denen Steuersignale zugeordneter Sensoren zugeführt werden.The invention relates to a method for operating a Heating, ventilation or air conditioning system that is a pump or a blower with a speed-controlled pump drive and has a pipe system with control fittings, the pump pen drive is equipped with a microprocessor that the speed of the pump according to an input signal drives controls, and the control valves Stellan have drives to which control signals associated sensors be fed.
Die Ansteuerung des mit einer intelligenten Steuerelektro nik in Form eines Mikroprozessors ausgerüsteten Pumpenan triebs erfolgt im Rahmen der bekannten Maßnahmen durch eine Zentralsteuerung. Die Drehzahl des Pumpenantriebs kann z. B. nach einem vorgegebenen Zeitprogramm verändert werden. Je nach Betriebsmodus, der an der Steuerelektronik des Pumpenantriebs eingestellt werden kann, ist eine Änderung des Eingangssignals mit einer proportionalen Änderung der Pumpendrehzahl, einer proportionalen Änderung des Mengenstroms oder einer proportionalen Änderung des Be triebsdruckes verbunden. Die Stellantriebe der Regel armaturen sind von dem Betrieb des Pumpenantriebs unab hängig und werden nach Maßgabe von Steuersignalen eines Sensors betätigt. Mit dem Stellhub der Regelarmatur wird die Strömung gedrosselt und der Fluidmengenstrom geregelt. Die mit der Drosselung an den Regelarmaturen verbundenen Energieverluste sind erheblich. The control of the with an intelligent control electro nik in the form of a microprocessor equipped pumps drive takes place within the scope of the known measures by a Central control. The speed of the pump drive can z. B. changed according to a predetermined time program become. Depending on the operating mode, that on the control electronics of the pump drive is one Change the input signal with a proportional Change in pump speed, a proportional change of the volume flow or a proportional change in the loading driving pressure connected. The actuators usually fittings are independent of the operation of the pump drive dependent and become one according to control signals Sensor actuated. With the stroke of the control valve the flow is throttled and the fluid flow is regulated. The associated with the throttling on the control valves Energy losses are significant.
Um die Energieaufnahme des Pumpenantriebs zu reduzieren, werden bei einem aus DE 197 37 250 A1 bekannten Verfahren die Ventilstellungen der Regelarmaturen abgegriffen und danach die Steuersignale einer Rechenanlage zugeführt, welche nach Maßgabe dieser Signale die Pumpendrehzahl steu ert. Bei einer offenen oder relativ weit geöffneten Stellung eines Ventils wird die Pumpenleistung erhöht. Bei einer geschlossenen oder fast geschlossenen Stellung eines Ventils wird die Pumpenleistung hingegen abgesenkt. Die Einrichtungen zur Erfassung der Ventilstellungen sind auf wendig, arbeiten verhältnismäßig ungenau und sind gelegent lich störanfällig.To reduce the energy consumption of the pump drive, are in a method known from DE 197 37 250 A1 tapped the valve positions of the control valves and then the control signals are fed to a computer system, which controls the pump speed according to these signals ert. With an open or relatively wide open Position of a valve increases the pump output. at a closed or almost closed position of a Valve, however, the pump output is reduced. The Devices for recording the valve positions are open agile, work relatively imprecise and are occasional susceptible to interference.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Betreiben einer Heizungs-, Lüftungs- oder Klimaanlage anzugeben, die sich durch einen günstigen energetischen Wirkungsgrad auszeichnet und so ausgebildet ist, daß Ein richtungen zur Erfassung der Ventilstellung der Regel armaturen entfallen.The invention has for its object a method for Operating a heating, ventilation or air conditioning system indicate which is characterized by a favorable energetic Efficiency is distinguished and is designed so that a directions for detecting the valve position of the rule fittings are eliminated.
Gegenstand der Erfindung und Lösung dieser Aufgabe ist ein Verfahren nach Anspruch 1. Die ebenfalls mit einem Mikro prozessor ausgerüsteten Stellantriebe der Regelarmaturen sind bei dem erfindungsgemäßen Verfahren untereinander und mit dem Mikroprozessor des Pumpenantriebs durch einen Datenbus verbunden. Von den in einer Datenkommunikation stehenden Mikroprozessoren der Stellantriebe wird das Ein gangssignal für die Drehzahl des Pumpenantriebs festgelegt. Ferner werden für eine dadurch betriebsabhängig vorgegebene Pumpenkennlinie des Pumpenantriebs Stellsignale für die Stellwege der den Mikroprozessoren jeweils zugeordneten Stellantriebe bestimmt. Aus den Steuersignalen der Sensoren wird ein Eingangssignal für die Drehzahl des Pumpenantriebs festgelegt. Die Festlegung erfolgt durch eine logische Schaltung so, daß an allen Regelarmaturen die für den Be trieb der Heizungs-, Lüftungs- oder Klimaanlage erforder lichen Fluidmengen und Betriebsdrücke erreichbar sind und die Antriebsdrehzahl des Pumpenantriebs innerhalb eines durch Grenzwerte vorgegebenen Arbeitsbereichs minimiert wird oder - sofern in den Mikroprozessoren Pumpen- und Drosselkennlinien abgespeichert sind - eine Minimierung des Leistungsbedarfs für den Pumpenantrieb vorgenommen wird. Für die durch das Eingangssignal festgelegte Pumpenkenn linie werden von den Mikroprozessoren der Stellantriebe die Stellwege bestimmt, um entsprechend dem Steuersignal des zugeordneten Sensors den Fluidstrom zu drosseln.The object of the invention and solution to this problem is a The method of claim 1. The also with a micro processor-equipped actuators of the control valves are with each other in the method according to the invention and with the microprocessor of the pump drive by one Data bus connected. Of those in a data communication standing microprocessors of the actuators becomes the on gear signal for the speed of the pump drive. Furthermore, for a given, depending on the operation Pump characteristic of the pump drive control signals for the Travel paths of each assigned to the microprocessors Actuators determined. From the control signals of the sensors becomes an input signal for the speed of the pump drive established. The determination is made by a logical Circuit so that on all control valves for Be drive the heating, ventilation or air conditioning required Liche fluid quantities and operating pressures are achievable and the drive speed of the pump drive within one minimized by the specified working range is or - if in the microprocessors pump and Throttle characteristics are stored - a minimization of the Power requirement for the pump drive is made. For the pump code specified by the input signal The microprocessors of the actuators are the line Travel ranges determined in accordance with the control signal of the associated sensor to throttle the fluid flow.
Das Eingangssignal für die Drehzahl des Pumpenantriebs trägt dem Betriebsmodus des Pumpenantriebs Rechnung. Es kann je nach Betriebsmodus des Pumpenantriebs eine propor tionale Änderung der Pumpendrehzahl oder eine proportionale Änderung des Mengenstroms oder eine proportionale Änderung des Druckes bewirken.The input signal for the speed of the pump drive takes into account the operating mode of the pump drive. It can a proportions depending on the operating mode of the pump drive tional change in pump speed or a proportional Change in flow or a proportional change of pressure.
Das erfindungsgemäße Verfahren beruht auf einer Datenkommu nikation zwischen den Stellantrieben der Regelarmaturen, einer Heizungs-, Lüftungs- oder Klimaanlage und den Pumpen antrieb. Steuersignale von Temperatursensoren, die den Regelarmaturen zugeführt werden, führen nicht nur zu einer Hubänderung des der Armatur zugeordneten Stellantriebs son dern bewirken auch eine Drehzahländerung des Pumpen antriebs. Durch das erfindungsgemäße Verfahren kann der Leistungsbedarf einer Heizungs-, Lüftungs- oder Klimaanlage erheblich gesenkt werden.The method according to the invention is based on a data commu application between the actuators of the control valves, a heating, ventilation or air conditioning system and the pumps drive. Control signals from temperature sensors that the Control valves are not only one Stroke change of the actuator assigned to the valve son change the speed of the pumps drive. With the method according to the invention, the Power requirement of a heating, ventilation or air conditioning system be significantly reduced.
Claims (2)
daß von den durch einen Datenbus untereinander und mit dem Mikroprozessor des Pumpenantriebes verbundenen Mikroprozessoren der Stellantriebe aus den Steuersig nalen der Sensoren das Eingangssignal für die Drehzahl des Pumpenantriebs durch eine logische Schaltung so festgelegt wird, daß an allen Regelarmaturen die für den Betrieb der Heizungs-, Lüftungs- oder Klimaanlage erforderlichen Fluidmengen und Betriebsdrücke erreich bar sind und die Antriebsdrehzahl des Pumpenantriebs innerhalb eines durch Grenzwerte vorgegebenen Arbeits bereiches minimiert wird oder eine Minimierung des Leistungsbedarfs für den Pumpenantrieb vorgenommen wird, und
daß für eine durch das Eingangssignal betriebsabhängig festgelegte Pumpenkennlinie von den Mikroprozessoren der Stellantriebe die Stellwege bestimmt werden, um entsprechend dem Steuersignal des zugeordneten Sensors den Fluidstrom zu drosseln.1. A method for operating a heating, ventilation or air conditioning system, which has a pump or a blower with a speed-controlled pump drive and a pipe system with control fittings, the pump drive being equipped with a microprocessor which, according to an input signal, determines the speed of the pump drive controls, the control fittings having actuators to which control signals from assigned sensors are fed, and wherein the actuators are also equipped with a microprocessor, characterized in that
that the input signal for the speed of the pump drive is determined by a logic circuit from the control signals of the sensors connected to one another by a data bus and to the microprocessor of the pump drive from the control signals of the sensors, so that a logic circuit is set on all control valves to operate the heating, Ventilation or air conditioning required fluid quantities and operating pressures can be reached and the drive speed of the pump drive is minimized within a working range specified by limit values or the power requirement for the pump drive is minimized, and
that the actuating paths are determined by the microprocessors of the actuators for a pump characteristic curve which is determined by the input signal in order to throttle the fluid flow in accordance with the control signal of the assigned sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19912579A DE19912579C2 (en) | 1999-03-19 | 1999-03-19 | Process for operating a heating, ventilation or air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19912579A DE19912579C2 (en) | 1999-03-19 | 1999-03-19 | Process for operating a heating, ventilation or air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE19912579A1 DE19912579A1 (en) | 2000-11-02 |
| DE19912579C2 true DE19912579C2 (en) | 2002-06-27 |
Family
ID=7901756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19912579A Revoked DE19912579C2 (en) | 1999-03-19 | 1999-03-19 | Process for operating a heating, ventilation or air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19912579C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10317471B3 (en) * | 2003-04-16 | 2004-09-30 | Hanning Elektro-Werke Gmbh & Co. Kg | Building venting method in which the speed of a venting fan is adjusted dependent on the pressure in a venting channel and whereby if either the fan speed or venting channel pressure exceed threshold vales a fault is diagnosed |
| DE102007053948A1 (en) * | 2007-11-09 | 2009-05-14 | Wilo Ag | Plant and method for controlling a liquid flow |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19710645A1 (en) * | 1997-03-14 | 1998-09-24 | Bosch Gmbh Robert | Arrangement and method for adjusting the performance of a heater |
| DE19737250A1 (en) * | 1997-08-27 | 1999-03-11 | Eugen Gerster | Control device for heating plants |
-
1999
- 1999-03-19 DE DE19912579A patent/DE19912579C2/en not_active Revoked
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19710645A1 (en) * | 1997-03-14 | 1998-09-24 | Bosch Gmbh Robert | Arrangement and method for adjusting the performance of a heater |
| DE19737250A1 (en) * | 1997-08-27 | 1999-03-11 | Eugen Gerster | Control device for heating plants |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19912579A1 (en) | 2000-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8331 | Complete revocation |