WO2006105017A2 - Pompe de recuperation des eaux condensees - Google Patents

Pompe de recuperation des eaux condensees Download PDF

Info

Publication number
WO2006105017A2
WO2006105017A2 PCT/US2006/011099 US2006011099W WO2006105017A2 WO 2006105017 A2 WO2006105017 A2 WO 2006105017A2 US 2006011099 W US2006011099 W US 2006011099W WO 2006105017 A2 WO2006105017 A2 WO 2006105017A2
Authority
WO
WIPO (PCT)
Prior art keywords
reservoir
water
condensate
drawer
condensate pump
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.)
Ceased
Application number
PCT/US2006/011099
Other languages
English (en)
Other versions
WO2006105017A3 (fr
Inventor
Charles Barry Ward
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.)
Diversitech Corp
Original Assignee
Diversitech Corp
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
Priority claimed from US11/277,445 external-priority patent/US20070224050A1/en
Application filed by Diversitech Corp filed Critical Diversitech Corp
Publication of WO2006105017A2 publication Critical patent/WO2006105017A2/fr
Anticipated expiration legal-status Critical
Publication of WO2006105017A3 publication Critical patent/WO2006105017A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F24F2013/227—Condensate pipe for drainage of condensate from the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/30—Condensation of water from cooled air

Definitions

  • This invention relates to a condensate pump that collects condensate water from the evaporator of an HVAC system and pumps the condensate water to another location for proper disposal.
  • a condensate pump is used in an HVAC system to collect condensate water from the evaporator of the HVAC system and to pump the condensate water to a remote location for disposal.
  • the condensate pump typically comprises a reservoir, a float for detecting the level of condensate water in the reservoir, and a pump controlled by the float for pumping the water out of the reservoir to the remote location.
  • Condensate pumps are often located in extreme environments and subjected to moisture, heat, and cold. Moreover, condensate pumps are often installed in inaccessible locations where maintenance is difficult, and therefore reliability over many years is necessary. Further, the condensate water in the reservoir of the condensate pump provides an environment for growth of algae, spores, and other contaminants that can produce an unhealthy environment in the building where the condensate pump is located.
  • the present invention addresses the issues raised by the installation of a condensate pump in an extreme environment.
  • the condensate pump of the present invention is capable of operating reliably in such an extreme environment over an extended period of time.
  • the condensate pump of the present invention is designed to operate quietly.
  • the condensate pump of the present invention insures that the condensate water in the reservoir does not create an environment for the growth of alga, spores, and other unhealthy environmental contaminants.
  • the condensate pump of the present invention embodies a number of features that together produce an improved condensate pump.
  • the condensate pump of the present invention includes a reservoir with a top assembly, which includes control electronics, a pump motor, and a pump impeller, mounted on top of the reservoir.
  • the condensate pump of the present invention includes wall hangers attached to the reservoir so that the pump can be mounted off of the floor in an elevated position for ease of installation and subsequent access.
  • the top assembly has four openings, one at each corner, to accommodate a discharge tube from the HVAC evaporator.
  • the top assembly can be reversed with respect to the reservoir thus offering installation flexibility to accommodate, for example, the placement of the electric service with respect to the discharge tube from the evaporator.
  • the condensate pomp has an automatic voltage sensing circuit that automatically adapts the control circuitry and the pump motor to accommodate either 120 volts or 240 volts. Consequently, installation personnel do not have to rewire the pump to accommodate the voltage that is available at the site.
  • the condensate pump of the present invention includes various features to assist both in the reduction of maintenance requirements and to assist when maintenance is required.
  • the reservoir has tube holders that extend into the reservoir from each of the four openings in the top assembly. The tube holders insure that the discharge tube from the evaporator does not bottom out in the reservoir and thus restrict the flow of condensate water from the evaporator into the reservoir of the condensate pump.
  • the reservoir is made of a clear plastic material so that the water level in the reservoir can be readily observed without removing the top assembly.
  • the condensate pump of the present invention has a power light so that maintenance personnel can readily determine whether the condensate pump has power or not.
  • the condensate pump also has an audible alarm that is sounded when the condensate water reaches an above normal level that indicates that the pump has stopped working.
  • the control circuitry of the condensate pump can shut off the HVAC system when an alarm condition is detected.
  • the condensate pump has rubber feet that support the condensate pump on a support surface to inhibit the transmission of vibration to the surrounding structure. Further, the motor and impeller for the condensate pump are mounted on a rubber bushing to further isolate any noise or vibrations generated by the motor from the surrounding environment. [0009] With respect to environmental issues, the condensate pump has a tablet drawer that passes through the top assembly and extends into reservoir below. The tablet drawer holds several biostat tablets which when exposed to the condensate water in the reservoir chemically inhibit the growth of algae, spores, or other unhealthy environmental contaminants. The tablet drawer has openings in its sides to allow condensate water in the reservoir to pass through drawer and slowly dissolve the biostat tablets within the drawer. Because the reservoir is transparent, maintenance personnel can observe the degree to which the biostat tablets have dissolved and can replace them as needed in the tablet drawer.
  • Fig. 1 is a side perspective view of the condensate pump in accordance with the present invention.
  • FIG. 2 is a back perspective view of the condensate pump in accordance with present invention.
  • FIG. 3 is a front elevation view of the condensate pump in accordance with the present invention.
  • Fig. 4 is a back elevation view of the condensate pump in accordance with the present invention.
  • Fig. 5 is a top plan view of the condensate pump in accordance with the present invention.
  • Fig. 6 is a side elevation in view of the condensate pump in accordance with the present invention.
  • Fig. 7 is an opposite side elevation view of the condensate pump in accordance with the present invention.
  • FIG. 8 is a detailed perspective view of the float control mechanism (low water position-pump off) of the condensate pump in accordance with the present invention.
  • FIG. 9 is a detailed perspective view of the float control mechanism (high water position-pump on) of the condensate pump in accordance with the present invention.
  • Fig. 10 is a detailed perspective view of the tablet drawer of the condensate pump in accordance with the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • a condensate pump 10 comprises a reservoir 12 and a top assembly 32.
  • the reservoir 12 comprises a water tight container with an open top defined by a periphery.
  • the reservoir comprises a front panel 14, a back panel 16, a left side panel 18, a right side panel 20, and a bottom panel 30.
  • the reservoir may be of any geometric shape.
  • the reservoir 12 has rubber support legs 26 located on the four corners of the bottom panel 30.
  • the reservoir 12 further has a flange 22 around the top periphery on which the top assembly 32 rests.
  • hanger brackets 28 are mounted to the reservoir on the back panel 16.
  • the hanger brackets 28 are used to mount the reservoir 12, on a wall or other elevated support in order to make later access to the condensate pump 10 in some cases easier.
  • the reservoir 12 is constructed of a clear plastic material, such as polypropylene, so that the water level in the reservoir can be observed without removing the top assembly 32.
  • the reservoir 12 further has a trough 24 molded into the bottom panel 30 for directing water remaining in the reservoir to the low point in the reservoir.
  • the top assembly 32 comprises a top cover 34 that rests on the flange 22 of the reservoir 12.
  • a condensate water outlet connector 44 is mounted on one end of the top cover 34.
  • the top cover 34 also has inlet openings 36 in the four corners of the top cover 34.
  • Plugs 37 cover the inlet openings 36 that are not in use.
  • Tube holders 38 are attached to the underside of the top cover 34 adjacent the inlet openings 36.
  • the tube holders 38 consist of several downwardly extending legs 40 with a hook 42 at the lower end of each leg 40.
  • the top assembly 32 further comprises a motor 46 connected to an impeller 50 (Fig. 3).
  • the motor 46 and the impeller 50 are mounted in a housing 52.
  • the housing 52 is mounted to the top cover 34 of the top assembly 32 by means of a rubber bushing 66 (Fig. 9).
  • the bushing 66 serves to isolate vibrations resulting from the operation of the motor and impeller from the top assembly 32 and therefore from transmission to the environment surrounding the condensate pump 10.
  • the housing 52 extends from the top cover 34 into the trough 24 in the bottom panel 30 of the reservoir 12.
  • the impeller 50 has impeller inlet ports 54 in the housing 52.
  • the inlet ports 54 of the impeller 50 are positioned within the trough 24 in the bottom panel 30 of the reservoir 12 so that the impeller 50 can draw most of the condensate water out of the reservoir 12.
  • the impeller 50 also has an impeller outlet port 56 in housing 52.
  • the impeller outlet port 56 is connected by means of a tube 58 to the outlet connector 44 on the top cover 34 of the top assembly 32.
  • the outlet connector 44 is connected to another tube (not shown) that delivers the condensate water to a remote location for proper disposal.
  • the top assembly 32 further includes control circuitry 68 and interconnected float mechanism 60.
  • the control circuitry 68 has an input voltage sensing circuit that determines whether the line voltage is 120 volts or 240 volts and automatically adapts the control circuitry to the available line voltage.
  • the control circuitry has an input voltage sensing circuit that determines whether the line voltage is 120 volts or 240 volts and automatically adapts the control circuitry to the available line voltage.
  • the motor micro switch 70 turns the motor 46 off and on in response to the level of the condensate water in the reservoir
  • the alarm micro switch 72 activates an audible alarm or shuts off the HVAC system when the condensate water reaches a level higher then normal within the reservoir 12. Both the motor micro switch 70 and the alarm micro switch 72 are controlled by the of float mechanism 60.
  • the float mechanism 60 comprises a float 62, a float arm 64, and a switch activator 74 Connected to the float arm 64.
  • the switch activator 74 rotates about switch activator pivot 76.
  • the switch activator 74 has a motor switch stub (on) 78 and a motor switch stub (off) 80.
  • the switch activator 74 has an alarm switch stub 82.
  • the float 62 causes the micro switch activator 74 to pivot to the position shown so that the motor switch stub (off) 80 engages the micro switch 70 thereby shutting off the motor 46.
  • the motor switch stub (on) 78 engages the micro switch 70 thereby turning on the motor 46.
  • the activation of the motor 46 causes the impeller 50 to pump the condensate water out of the reservoir 12 through the tube 58 and out of outlet connector 44.
  • the motor switch stub 80 of the switch activator 74 opens micro switch 70, and the motor 46 stops.
  • the control circuitry 68 maintains the .motor in the on or off condition during of the transition of the micro switch 70 between off and on.
  • the alarm switch stub 82 engages the alarm micro switch 72.
  • the engagement of the alarm micro switch 72 causes the condensate pump 10 to sound an audible alarm thereby alerting occupants that the condensate pump has failed to evacuate the condensate water from the reservoir 12.
  • the activation of the alarm micro switch 72 can turn off the HVAC system thereby stopping the flow of condensate water from the evaporator to the reservoir 12 of the condensate pump 10.
  • the reservoir 12 is transparent so that maintenance personnel can easily observe the level of condensate water in the reservoir 12.
  • control circuitry 68 has a power light so that maintenance personnel can determine whether the condensate pump has failed because of lack of power or for some other reason. Status of lights may also be included within the control circuitry 68 to show the float level and the related condensate water level, low condensate water 84, high condensate water 86, and alarm level condensate water 88.
  • the condensate pump 10 of the present invention has a mechanism for delivery of biostat tablets 104 (Fig. 10) to the condensate water in the reservoir 12.
  • the biostat tablets 104 are conventional biostat tablets used for the treatment of standing water in condensate water pans and the like.
  • a tablet drawer 94 is provided in the top cover 34.
  • the tablet drawer 94 slides through an opening in the top cover 34.
  • the tablet drawer 94 has a handle 96.
  • the drawer 94 has diagonal openings 98.
  • the biostat tablets 104 are placed in the drawer body 100, and the drawer 94 slides through the drawer opening in the top cover of 34. Once the drawer 94 is in place within the reservoir 12, the condensate water washes over the tablets 104 and slowly dissolves them releasing the active ingredients into the condensate water. Because the reservoir 12 is transparent, maintenance personnel can observe the degree to which the biostat tablets 104 have dissolved thereby indicating when replacement is required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention a trait à une pompe de récupération des eaux condensées pour un système de chauffage, de ventilation et de climatisation comportant un réservoir avec un ensemble supérieur, comprenant une électronique de commande, un motopompe, et une turbine de pompe, montés sur le haut du réservoir. La pompe de récupération des eaux condensées comporte des étriers muraux. L'ensemble supérieur comporte une coiffe supérieure avec quatre ouvertures d'admission, et la coiffe supérieure est réversible pour s'adapter à l'installation du service électrique et du tube d'évaporateur. La coiffe supérieure comprend des supports de tubes qui s'étendent dans le réservoir de sorte que le fond du tube d'évaporateur ne pénètre pas dans le réservoir. Le réservoir est réalisé en matière plastique transparente de sorte que le niveau de l'eau puisse être aisément vérifié. La pompe de récupération des eaux condensées comporte un circuit de commande qui peut assurer l'interruption du système de chauffage, de ventilation et de climatisation ou sonner une alarme lors d'une défaillance de la pompe. Le tiroir traverse l'ensemble supérieur et s'étend dans le réservoir.
PCT/US2006/011099 2005-03-25 2006-03-27 Pompe de recuperation des eaux condensees Ceased WO2006105017A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US66553305P 2005-03-25 2005-03-25
US60/665,533 2005-03-25
US11/277,445 US20070224050A1 (en) 2006-03-24 2006-03-24 Condensate pump
US11/277,445 2006-03-24

Publications (2)

Publication Number Publication Date
WO2006105017A2 true WO2006105017A2 (fr) 2006-10-05
WO2006105017A3 WO2006105017A3 (fr) 2007-11-22

Family

ID=37053988

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/011099 Ceased WO2006105017A2 (fr) 2005-03-25 2006-03-27 Pompe de recuperation des eaux condensees

Country Status (1)

Country Link
WO (1) WO2006105017A2 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106288292A (zh) * 2016-08-19 2017-01-04 广东志高暖通设备股份有限公司 一种蒸发器与接水盘的安装结构及风管机
GB2544756A (en) * 2015-11-24 2017-05-31 Ebac Ind Products Ltd Pump assembly incorporating a sump
US9776890B1 (en) 2016-02-19 2017-10-03 JB Solutions, Inc. Sanitizing system
US10610907B1 (en) 2018-04-06 2020-04-07 Mainstream Engineering Corporation System and method for preventing condensate drain pan flooding, detecting condensate water overflow and shutting off an air conditioner or heat pump to prevent further flooding
USD890211S1 (en) 2018-01-11 2020-07-14 Wayne/Scott Fetzer Company Pump components
US10711788B2 (en) 2015-12-17 2020-07-14 Wayne/Scott Fetzer Company Integrated sump pump controller with status notifications
USD893552S1 (en) 2017-06-21 2020-08-18 Wayne/Scott Fetzer Company Pump components
EP3722693A4 (fr) * 2018-12-24 2022-01-26 Sungshin Hasco Limited Conduit ayant un contenant d'eau de pompe de vidange exposée

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758236A (en) * 1971-10-14 1973-09-11 March Manuf Co Condensate pump
US4982576A (en) * 1987-12-10 1991-01-08 Murray Corporation Air conditioner charging station with same refrigerant return and method
EP0489587A1 (fr) * 1990-12-06 1992-06-10 Control Chemicals (Proprietary) Limited Traitement de liquides
US6322326B1 (en) * 1999-01-29 2001-11-27 Lee W. Davis Modular condensate pump assembly

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2544756A (en) * 2015-11-24 2017-05-31 Ebac Ind Products Ltd Pump assembly incorporating a sump
US10711788B2 (en) 2015-12-17 2020-07-14 Wayne/Scott Fetzer Company Integrated sump pump controller with status notifications
US11486401B2 (en) 2015-12-17 2022-11-01 Wayne/Scott Fetzer Company Integrated sump pump controller with status notifications
US9776890B1 (en) 2016-02-19 2017-10-03 JB Solutions, Inc. Sanitizing system
CN106288292A (zh) * 2016-08-19 2017-01-04 广东志高暖通设备股份有限公司 一种蒸发器与接水盘的安装结构及风管机
USD893552S1 (en) 2017-06-21 2020-08-18 Wayne/Scott Fetzer Company Pump components
USD1015378S1 (en) 2017-06-21 2024-02-20 Wayne/Scott Fetzer Company Pump components
USD890211S1 (en) 2018-01-11 2020-07-14 Wayne/Scott Fetzer Company Pump components
USD1014560S1 (en) 2018-01-11 2024-02-13 Wayne/Scott Fetzer Company Pump components
US10610907B1 (en) 2018-04-06 2020-04-07 Mainstream Engineering Corporation System and method for preventing condensate drain pan flooding, detecting condensate water overflow and shutting off an air conditioner or heat pump to prevent further flooding
US10933452B1 (en) 2018-04-06 2021-03-02 Mianstream Engineering Corporation System and method for preventing condensate drain pan flooding, detecting condensate water overflow and shutting off an air conditioner or heat pump to prevent further flooding
EP3722693A4 (fr) * 2018-12-24 2022-01-26 Sungshin Hasco Limited Conduit ayant un contenant d'eau de pompe de vidange exposée

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