EP2088321A1 - Dispositif de compresseur doté d'une soupape d'évacuation du produit de condensation - Google Patents

Dispositif de compresseur doté d'une soupape d'évacuation du produit de condensation Download PDF

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Publication number
EP2088321A1
EP2088321A1 EP09001644A EP09001644A EP2088321A1 EP 2088321 A1 EP2088321 A1 EP 2088321A1 EP 09001644 A EP09001644 A EP 09001644A EP 09001644 A EP09001644 A EP 09001644A EP 2088321 A1 EP2088321 A1 EP 2088321A1
Authority
EP
European Patent Office
Prior art keywords
condensate
compressed air
compressor device
drain valve
condensate drain
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.)
Granted
Application number
EP09001644A
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German (de)
English (en)
Other versions
EP2088321B1 (fr
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.)
Schneider Druckluft GmbH
Original Assignee
Schneider Druckluft GmbH
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Filing date
Publication date
Application filed by Schneider Druckluft GmbH filed Critical Schneider Druckluft GmbH
Publication of EP2088321A1 publication Critical patent/EP2088321A1/fr
Application granted granted Critical
Publication of EP2088321B1 publication Critical patent/EP2088321B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16—Filtration; Moisture separation
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/06—Mobile combinations
    • 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
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs

Definitions

  • the invention relates to a compressor device for generating compressed air for compressed air tools, with a compressor device for compressing and generating the compressed air, with a connected to the compressor device via a compressed air connection compressed air storage tank for storing the compressed air in spaced temporal filling operations and with a Condensate drain valve for draining condensate from the compressed air storage tank.
  • a condensate drain valve is used e.g. from time to time opened by the operator to drain the condensate into a condensate collector.
  • the condensate collector must be emptied.
  • operated by floats condensate drain valves are known, wherein when a predetermined condensate level within the compressed air storage tank is exceeded, a float switch opens the condensate drain valve, so that the condensate can flow from the compressed air storage tank. If the float switch becomes dirty, it can not operate the condensate drain valve, resulting in malfunction of the compressor device.
  • a compressor device of the type mentioned for solving the problem that it has a drive means for actuating the condensate drain valve between a condensate passage passage and a blocking position, and that the drive means the condensate drain valve depending on the Beglallvor réellen to a discharge of the condensate from the Compressed air storage tank actuated.
  • the driver actuates the condensate drain valve in response to the fill operations, i. preferably in each filling operation or every other, every third, every fourth or further filling operation, so that the condensate is actuated in time-defined, associated with the filling of the compressed air storage tank time intervals.
  • the control device opens the condensate drain valve correspondingly frequently, while in the case of a few filling operations a condensate drain is required correspondingly less frequently, which takes into account the activation device.
  • the invention ensures that then condensate is drained reliably, though it is incurred, namely in connection with the filling of the compressed air storage tank.
  • the invention is particularly advantageous in mobile compressor devices, such as workshop compressors.
  • the compressor device has, for example, a chassis. But it is also possible that the compressor device is portable.
  • the compressed air tools are, for example, sprayers, compressed air screwdrivers, compressed air drills and the like.
  • a fluid-technical, for example, pneumatic variant or alternatively an electrical variant is proposed.
  • a fluid line from the drive device to the condensate drain valve is provided for the pneumatic or hydraulic control of the condensate drain valve.
  • This advantageous fluid-technical, in particular pneumatic procedure has the advantage that extensive electrical fuses are not required.
  • an electrical connection, which is advantageously required by the drive device to the condensate drain valve for electrically actuating the Kondensatablassventils relatively easy to implement.
  • the cable routing is simple.
  • the control device expediently has a pressure relief valve for pressure relief of the compressor.
  • the pressure relief valve relieves before or after a respective filling a compressed air line from the compressor to the compressed air storage tank.
  • the compressor can restart easier, since he does not have to work against the compressed air in the compressed air line pent-up.
  • the resulting in the pressure relief exhaust air of the pressure relief valve is advantageously performed via an exhaust duct connection from the pressure relief valve to the condensate drain valve. There, the exhaust air is used to operate the condensate drain valve.
  • the pressure relief exhaust air forms, so to speak, a pilot pressure medium for the condensate drain valve.
  • the condensate drain valve is suitably biased in its blocking position.
  • the depressurization exhaust air actuates another one provided by the drive means Pressure medium or a driven by a switching pulse of the control device electric drive of the condensate drain valve, the condensate drain valve against the bias in its release position.
  • the pressure relief valve may for example form part of a pressure switching device for pressure-dependent switching of the compressed air during filling of the compressed air storage tank.
  • the compressed air switching device switches the compressor device pressure-dependent on and off, so that at the output of the compressed air storage tank compressed air in a corridor between a compressed air upper limit and a compressed air lower limit is available.
  • a switching signal of the pressure switching device for a motor driving the compressor device may e.g. serve as a switching pulse for an electric drive for switching the condensate drain valve between the passage position and the blocking position.
  • the switching pulse controls the condensate drain valve, e.g. at or after a respective filling a predetermined time in its open position.
  • a throttle is expediently provided, which serves for the throttled discharge of the exhaust air from the exhaust air line connection. If the exhaust air falls below a threshold pressure, the condensate drain valve switches to its blocking position.
  • an active switching can be provided, ie that the exhaust air also takes over the switching of the condensate drain valve in the blocking position.
  • the condensate drain valve in its above-described manner already biased in its blocking position for example, spring-loaded, is.
  • the throttle is suitably adjustable to set an opening time of the condensate drain valve.
  • a passage cross section of the throttle can be adjusted.
  • the throttle has a fixed setting, for example, an exhaust port is disposed on the exhaust duct connection or the condensate drain valve.
  • the control device expediently comprises a pressure switching device for pressure-dependent switching of the compressed air during filling of the compressed air storage tank. Furthermore, it is possible for the condensate drain valve to receive a switching signal from such a pressure switching device with its actuation.
  • the switching signal may be an electrical or pneumatic switching signal.
  • the condensate evaporator device can be heated electrically, for example. It is particularly advantageous if the condensate evaporator device is heated, for example, by the compressor device itself or by compressed air which generates the compressor device. For this purpose, a line section of a compressed air connection from the compressor device to the compressed air storage tank in thermal communication with the condensate evaporator. For example, the line section to a collecting container for the condensate over or passed through the sump. Electrical energy is not necessary for the evaporation of the condensate in the latter two variants.
  • a compressor device 10 is used to generate compressed air 15 for the operation of compressed air tools, such as nailers, spray guns or the like.
  • a motor 11 e.g. an internal combustion engine or in the present case an electric motor, drives via a drive belt 13 a compressor device 12, for example a piston processor, to a compressor assembly 14 which generates compressed air 15.
  • the compressor assembly 14 is arranged in a front region 17 of a frame 18 of the compressor device 10.
  • the compressor assembly 14 generates the compressed air 15, which in a arranged in a rear portion 19 of the frame 18 compressed air storage tank 20 is stored.
  • the frame 18 offers at its top storage options.
  • an operating area 21 is provided on which operating elements and maintenance devices 22, for example a dryer 23 and an oiler, are arranged.
  • the compressor device 10 is mobile. It has a chassis 26 with wheels 25, and can be easily driven to a job site. Handles 24, formed for example by the frame 18, facilitate handling.
  • the frame 18 further forms a support structure for a housing 27, which substantially encapsulates the compressor device 10, in particular the compressor assembly 14.
  • the compressor assembly 14 is preferably arranged in a wall elements 28 and 29 having capsule housing 36. A front wall element is shown in FIG Fig. 1 removed, so that the compressor assembly 14 is visible.
  • the compressor device 10 can be used as a kind of workshop car, where it can be easily driven to the site due to their mobility.
  • the noise encapsulation by the capsule housing 36 contributes to the ease of use.
  • the compressor assembly 14 is mounted on a spring assembly 16 with coil springs substantially free spring, which reduces noise and vibration of the compressor device 10.
  • the compressor device 10 also facilitates the handling of condensate, which accumulates, for example, in the maintenance devices 22 and the compressed-air storage tank 20 during cooling of the compressed air 15.
  • a drive device 31 For controlling a discharge of the condensate 30, a drive device 31 is provided, which actuates a condensate drain valve 32 as a function of filling operations of the compressed-air storage tank 20 by the compressor device 12.
  • the condensate drain valve 32 is connected to a condensate outlet or condensate drain 33 via a line 34.
  • the condensate drain 33 is arranged in a region of the compressed air storage tank 20, where the condensate 30 collects, for example, below.
  • the condensate 30 is not collected in the compressor device 10 as in a collecting container, which must be emptied from time to time, but evaporated by means of a condensate evaporator 35.
  • a condensate evaporator 35 it would be possible to arrange the condensate evaporator 35 in the vicinity of the compressor device 12 in order to utilize its waste heat for heating and evaporating the condensate 30.
  • an innovative concept is chosen in which no electrical energy is necessary and in which the condensate evaporator 35 can be placed freely in the housing 27:
  • the condensate evaporator 35 may be located away from the spring assembly 16 resiliently mounted, vibrating compressor assembly 14, for example below the compressor assembly 14 at the bottom 37 of the capsule housing 36.
  • the condensate evaporator 35 is advantageously protected by the capsule housing 36, but for maintenance purposes after removal of a front wall element of the capsule housing 36, as in FIG Fig. 1 done, freely accessible for maintenance purposes.
  • Within the capsule housing 36 it is also due to the engine 11 and the compressor device 12 is relatively warm, which favors the evaporation of the condensate 30.
  • the capsule housing 36 is well ventilated.
  • the compressor device 12 drives a fan wheel 38.
  • a pressure switching device 40 controls the filling of the compressed air storage tank 20 by means of the compressor device 12 in a conventional manner.
  • a pressure sensor 41 which is connected via a line 42 to the pressure level of the compressed-air storage tank 20, a lower limit pressure in the compressed air storage tank 20, the pressure switching device 40 turns on in motor 11, so that the compressor device 12 produces compressed air 15 and via a compressed air connection 43 and a check valve 44 in the compressed air storage tank 20 as long as fed until the pressure sensor 41 detects an upper pressure limit and the motor 11 turns off.
  • the check valve 44 then prevents a backflow of compressed air 15 from the compressed air storage tank 20 in the direction of the compressor device 12th
  • the pressure switching device 40 includes an integrated pressure relief valve 45.
  • the pressure relief valve 45 for example a 3/2-way valve, vented after each filling operation of the compressed air storage tank 20, the compressed air connection 43, wherein exhaust air 46 can flow away via an exhaust air connection 47 of the compressed air connection 43.
  • the exhaust air 46 does not flow into the atmosphere, but is used to operate the condensate drain valve 32 in accordance with the invention.
  • the condensate drain valve 32 is disposed between a fluid-blocking position (in Fig. 5 shown) and a fluid-passing passage position switchable.
  • the condensate drain valve 32 is a switching valve, for example, a 3/2-way valve.
  • the condensate drain valve 32 is biased in its blocking position. against this bias the condensate drain valve 32 can be actuated by the exhaust air 46 in its passage position.
  • the condensate drain valve 32 connected on the input side to the line 34 allows the condensate 30 to pass in the direction of a drain line 48, via which the condensate 30 can flow to the condensate evaporator device 35.
  • a throttle 49 is advantageously arranged in or on the drain line 48.
  • a throttle 50 is provided, which discharges in the exhaust air line connection 47 pending exhaust 46 controlled in the environment.
  • the throttle 50 could be an adjustable throttle 50 so that an operator can adjust the duration of the condensate drain by adjusting the throttle 50.
  • an exhaust port 51 is provided with a suitably calibrated diameter.
  • the exhaust air opening 51 is arranged, for example, on a control connection 52 of the condensate drain valve 32, to which the exhaust air line connection 47 is connected. It is understood that at least one suitable throttle exhaust port is also possible elsewhere in the exhaust air line connection 47.
  • the drive device 31 can also be used for discharging condensate from further compressed air storage tanks, for example an additional compressed air storage tank 53.
  • the compressed air storage tank 53 is optionally connectable to the compressor device 10 and is fed via a compressed air line connection, not shown, by the compressor device 12 with compressed air 15.
  • On the discharge side of the compressed air storage tank 53 is connected to the line 34, so that at a respective discharge of condensate, which drives the drive means 31, condensate can also flow from the compressed air storage tank 53 via line 34.
  • the control device 31 includes, for example, in addition to the pressure switching device 40 and the pressure relief valve 45 and the fluid-operated condensate drain valve 32nd
  • the condensate evaporator device 35 described in detail below can be used not only for the condensate 30 from one or both compressed air storage tanks 20, 53, but also for condensate 54 of the maintenance devices 22 and an optional additional maintenance device 55, for example a cold dryer 56 , which is connectable to the compressor device 10.
  • the maintenance devices 22, 55 are connected via a connecting piece 57, for example a T-connector, connected together with the drain line 48 for the condensate 30 to an inlet line 58 of the condensate evaporator 35.
  • the inlet line 58 is performed by the wall element 29 of the capsule housing 36 and opens into an interior 59 of a collecting container 60 for the condensate 30, 54th
  • the sump 60 has a substantially cubic shape and has a bottom 61 and front and rear side walls 62, 63 and side walls 64, 65 extending therebetween.
  • the collecting container 60 is covered by a covering device 66, which is permeable to water vapor.
  • the covering device 66 contains a fleece 67, which is arranged between holding lattices 68, 69 of a holding device 70.
  • the holding grid 68 forms a support holding grid, which is placed on the collecting container 60.
  • the support grid 68 rests on support projections 71, which project inwardly in front of the side walls 62-65.
  • the support projections 71 are formed by a kind of frame 72, which rests on the bottom 61 facing away from sides of the side walls 62-65 and there is, for example, welded or glued.
  • at least one of the support projections 71 is formed by an inwardly folded portion of the side walls 62-65.
  • the upper holding grid 69 is stretched by the resting on the lower support grid 68 fleece 67 against retaining projections 73, 74 on the front and rear side wall 62, 63.
  • the retaining projections project inward of wall portions 75, 76 of the side walls 62, 63 corresponding to the support projections 71, so that the retaining projections 73, 74 are toward the support projections 71 are spaced.
  • a line section 81 of the compressed air connection 43 is guided from the compressor device 12 to the storage container 20 through the interior 59 of the collecting container 60, so that the condensate 30, 54 located there is heated and evaporated.
  • the resulting water vapor can escape through the fleece 67 and the two grids 68, 69 from the interior 59.
  • the line section 81 is formed by a tube 82 in the interior 59, which advantageously forms an integral part of Condensate evaporator 35 forms.
  • ports 83 for pipes 84, 85 of the compressed air connection 43 are provided.
  • the terminals 83 are arranged, for example, on the upper wall forming support projections 71 of the two side walls 64, 65. On one of these support projections 71, a passage opening 86 for the condensate inlet line 58 is further provided.
EP09001644A 2008-02-08 2009-02-06 Dispositif de compresseur doté d'une soupape d'évacuation du produit de condensation Expired - Fee Related EP2088321B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008008349A DE102008008349A1 (de) 2008-02-08 2008-02-08 Kompressorvorrichtung mit einem Kondensatablassventil

Publications (2)

Publication Number Publication Date
EP2088321A1 true EP2088321A1 (fr) 2009-08-12
EP2088321B1 EP2088321B1 (fr) 2011-03-02

Family

ID=40559506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09001644A Expired - Fee Related EP2088321B1 (fr) 2008-02-08 2009-02-06 Dispositif de compresseur doté d'une soupape d'évacuation du produit de condensation

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Country Link
EP (1) EP2088321B1 (fr)
AT (1) ATE500421T1 (fr)
DE (2) DE102008008349A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3029322A3 (fr) * 2014-11-17 2016-07-13 Black & Decker Inc. Ensemble compresseur d'air comprenant un système de gestion de condensat

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532607A (en) 1947-12-29 1950-12-05 Churchman Nellie Valve used as a control
DE1058688B (de) * 1951-05-07 1959-06-04 Wilkerson Corp Kondensatablassventil
DE8209016U1 (de) * 1982-03-30 1983-10-06 Woerther, Gerhard, 7570 Baden-Baden Elektronisch steuerbare Kondensat-Abscheidevorrichtung für Druckluftanlagen
DE4228326A1 (de) * 1992-08-26 1994-03-03 Bauer Kompressoren Kompressoranlage
DE10328416A1 (de) 2003-06-25 2005-01-27 Schneider Druckluft Gmbh Kompressoranlage für Druckluft und Stickstoff
EP1862671A1 (fr) * 2006-05-30 2007-12-05 Schneider Druckluft GmbH Dispositif de compression

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19942265A1 (de) * 1999-09-04 2001-03-08 Alup Kompressoren Gmbh Verdichteranlage und Verfahren zur Verdichtung eines Gases

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532607A (en) 1947-12-29 1950-12-05 Churchman Nellie Valve used as a control
DE1058688B (de) * 1951-05-07 1959-06-04 Wilkerson Corp Kondensatablassventil
DE8209016U1 (de) * 1982-03-30 1983-10-06 Woerther, Gerhard, 7570 Baden-Baden Elektronisch steuerbare Kondensat-Abscheidevorrichtung für Druckluftanlagen
DE4228326A1 (de) * 1992-08-26 1994-03-03 Bauer Kompressoren Kompressoranlage
DE10328416A1 (de) 2003-06-25 2005-01-27 Schneider Druckluft Gmbh Kompressoranlage für Druckluft und Stickstoff
EP1862671A1 (fr) * 2006-05-30 2007-12-05 Schneider Druckluft GmbH Dispositif de compression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3029322A3 (fr) * 2014-11-17 2016-07-13 Black & Decker Inc. Ensemble compresseur d'air comprenant un système de gestion de condensat

Also Published As

Publication number Publication date
ATE500421T1 (de) 2011-03-15
EP2088321B1 (fr) 2011-03-02
DE102008008349A1 (de) 2009-08-20
DE502009000402D1 (de) 2011-04-14

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