DE10149504A1 - Radial turbo compressor, for a coolant, has mechanically operated diffuser sealing flaps to prevent a gas backflow into the rotor wheel from the condenser into the rotor wheel, and reduce energy consumption on stop/go working - Google Patents

Radial turbo compressor, for a coolant, has mechanically operated diffuser sealing flaps to prevent a gas backflow into the rotor wheel from the condenser into the rotor wheel, and reduce energy consumption on stop/go working

Info

Publication number
DE10149504A1
DE10149504A1 DE10149504A DE10149504A DE10149504A1 DE 10149504 A1 DE10149504 A1 DE 10149504A1 DE 10149504 A DE10149504 A DE 10149504A DE 10149504 A DE10149504 A DE 10149504A DE 10149504 A1 DE10149504 A1 DE 10149504A1
Authority
DE
Germany
Prior art keywords
rotor wheel
condenser
blades
diffuser
stop
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.)
Withdrawn
Application number
DE10149504A
Other languages
German (de)
Inventor
Wilhelm Salzmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE10149504A priority Critical patent/DE10149504A1/en
Publication of DE10149504A1 publication Critical patent/DE10149504A1/en
Withdrawn legal-status Critical Current

Links

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The sealing flaps, at the diffuser of a coolant radial turbo compressor, are operated mechanically by an electromotor through a conventional ball and socket joint rod. Each of the paddle blades have a sealing surface at their outer ends, on one side at right angles to the blade direction, which are set to lie against a sealing surface to prevent a gas backflow from the condensation zone into the rotor wheel. When the sealing flaps are closed, the compressor can be started against the pressure difference between the evaporator and the condenser.

Description

Durch die Erfindung sollen die genannten Nachteile der Rückströmung, sowie die unerwünschten Nebenwirkungen der äusseren Bypässe, vermieden werden. Weiterhin ermöglicht die Erfindung spezielle An- und Abfahrregime die sich positiv auf den Gesamtenergieverbrauch des Kaltwassersatzes auswirken. The disadvantages of backflow, as well as the undesirable side effects of the external bypasses can be avoided. Furthermore, the invention enables special start-up and shutdown regimes that are positive affect the total energy consumption of the chiller.

Erfindungsgemäß werden die mechanisch über ein übliches Kugelgelenkgestänge mit einem Elektromotor angetriebenen Diffusorschaufeln so ausgelegt, dass jede der einseitig senkrecht zur Schaufelrichtung gelagerten Schaufeln am äußeren Ende eine Dichtfläche besitzt, die sich bei immer weiterer Verstellung an eine Dichtfläche der benachbarten Schaufel anlegt und damit die Rückströmung von Kältemitteldampf (Gas) aus dem Kondensatorraum in das Laufrad verhindert. Erfindungsgemäß kann dann diese elektromechanisch angetriebene Einrichtung zur Verhinderung der Rückströmung auch strömungsmechanisch so ausgelegt werden, dass eine optimale Diffusorwirkung bei unterschiedlicher Leistung durch Verstellung der Schaufeln erfolgt. Erfindungsgemäß kann dann diese elektromechanisch angetriebene Einrichtung zum Anfahren der Verdichter gegen eine bestehende Druckdifferenz zwischen Verdampfer p0 und Kondensator pc eingesetzt werden. Erfindungsgemäß dient dann diese elektromechanisch angetriebene Einrichtung im geschlossenen Zustand zur Aufrechterhaltung der Druckdifferenz zwischen Verdampfer p0 und Kondensator pc, dies ist im Besonderen für den Stop and Go-Betrieb zur Energieeinsparung notwendig. According to the invention, the diffuser blades, which are mechanically driven by means of a conventional ball-and-socket linkage with an electric motor, are designed in such a way that each of the blades, which is mounted on one side perpendicular to the blade direction, has a sealing surface at the outer end which, as the adjustment continues, adjoins a sealing surface of the adjacent blade and thus the backflow of Prevents refrigerant vapor (gas) from the condenser chamber into the impeller. According to the invention, this electromechanically driven device for preventing the backflow can also be designed fluid-mechanically in such a way that an optimal diffuser effect with different power is achieved by adjusting the blades. According to the invention, this electromechanically driven device can then be used to start the compressors against an existing pressure difference between evaporator p 0 and condenser p c . According to the invention, this electromechanically driven device then serves in the closed state to maintain the pressure difference between evaporator p 0 and condenser p c , this is necessary in particular for the stop and go operation in order to save energy.

In Fig. 1 sind die Schaufeln kombiniert als Nachleiteinrichtung im geöffneten Zustand und in Fig. 2 als Dichtklappe im geschlossenen Zustand in einem Ausschnitt aus dem Diffusorring dargestellt. In Fig. 1, the blades are shown combined as a follow-up device in the open state and in Fig. 2 as a sealing flap in the closed state in a section of the diffuser ring.

Claims (4)

1. Elektromechanisch über ein Gestänge angetriebene Vorrichtung zur Verstellung der Diffusorschaufeln eines Radial-Turboverdichters um eine Drehachse, dadurch gekennzeichnet, dass jede der einseitig senkrecht zur Schaufelrichtung gelagerten Schaufeln am äußeren Ende eine Dichtfläche besitzt, die sich bei ausreichender Verstellung an eine Dichtfläche anlegt und damit die Rückströmung von Gas aus dem Kondensatorraum in das Laufrad verhindert. 1.Electro-mechanically driven via a linkage device for adjusting the diffuser blades of a radial turbocompressor about an axis of rotation, characterized in that each of the blades, which is mounted on one side perpendicular to the blade direction, has a sealing surface at the outer end, which adjoins a sealing surface with sufficient adjustment and thus prevents the backflow of gas from the condenser chamber into the impeller. 2. Verfahren nach Anspruch 1 zur Verstellung der Diffusorschaufeln eines Radial- Turboverdichters, dadurch gekennzeichnet, dass Diffusor- Dichtungsschaufeln zur Leistungsregelung des Verdichters eingesetzt werden. 2. The method according to claim 1 for adjusting the diffuser blades of a radial Turbo compressor, characterized in that diffuser Seal blades are used to regulate the capacity of the compressor. 3. Verfahren nach Anspruch 1 zur Verstellung der Diffusorschaufeln eines Radial- Turboverdichters, dadurch gekennzeichnet, dass Diffusor- Dichtungsschaufeln im geschlossenen Zustand ein Anfahren der Verdichter gegen eine bestehende Druckdifferenz zwischen Verdampfer p0 und Kondensator pc ermöglichen. 3. The method according to claim 1 for adjusting the diffuser blades of a radial turbocompressor, characterized in that diffuser sealing blades in the closed state enable the compressor to start up against an existing pressure difference between evaporator p 0 and condenser p c . 4. Verfahren nach Anspruch 1 zur Verstellung der Diffusorschaufeln eines Radial- Turboverdichters, dadurch gekennzeichnet, dass Diffusor- Dichtungsschaufeln im geschlossenen Zustand die Druckdifferenz zwischen Verdampfer p0 und Kondensator pc aufrecht erhalten; dies ist im Besonderen für den Stop and Go-Betrieb zur Energieeinsparung notwendig. 4. The method according to claim 1 for adjusting the diffuser blades of a radial turbocompressor, characterized in that diffuser sealing blades maintain the pressure difference between evaporator p 0 and condenser p c in the closed state; this is particularly necessary for stop and go operation to save energy.
DE10149504A 2001-09-28 2001-09-28 Radial turbo compressor, for a coolant, has mechanically operated diffuser sealing flaps to prevent a gas backflow into the rotor wheel from the condenser into the rotor wheel, and reduce energy consumption on stop/go working Withdrawn DE10149504A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10149504A DE10149504A1 (en) 2001-09-28 2001-09-28 Radial turbo compressor, for a coolant, has mechanically operated diffuser sealing flaps to prevent a gas backflow into the rotor wheel from the condenser into the rotor wheel, and reduce energy consumption on stop/go working

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10149504A DE10149504A1 (en) 2001-09-28 2001-09-28 Radial turbo compressor, for a coolant, has mechanically operated diffuser sealing flaps to prevent a gas backflow into the rotor wheel from the condenser into the rotor wheel, and reduce energy consumption on stop/go working

Publications (1)

Publication Number Publication Date
DE10149504A1 true DE10149504A1 (en) 2003-04-10

Family

ID=7701743

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10149504A Withdrawn DE10149504A1 (en) 2001-09-28 2001-09-28 Radial turbo compressor, for a coolant, has mechanically operated diffuser sealing flaps to prevent a gas backflow into the rotor wheel from the condenser into the rotor wheel, and reduce energy consumption on stop/go working

Country Status (1)

Country Link
DE (1) DE10149504A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1462673A1 (en) 2003-03-28 2004-09-29 Pintsch Bamag Antriebs- und Verkehrstechnik GmbH Procedure and device for monitoring an electomagnetically applied brake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1462673A1 (en) 2003-03-28 2004-09-29 Pintsch Bamag Antriebs- und Verkehrstechnik GmbH Procedure and device for monitoring an electomagnetically applied brake

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