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公开(公告)号：US20190301815A1
公开(公告)日：2019-10-03
申请号：US16148150
申请日：2018-10-01
Applicant: DRI-STEEM Corporation
Inventor： James M. Lundgreen
Abstract: A heat transfer system includes a steam chamber that communicates in an open-loop arrangement with a first steam source for supplying steam to the steam chamber, the steam chamber including a steam exit for supplying steam to air at atmospheric pressure. A heat transfer tube communicates in a closed-loop arrangement with a second steam source for supplying steam to an interior surface of the heat transfer tube, the heat transfer tube vaporizing condensate forming within the heat transfer system back to steam that is supplied to the air via the steam exit. The outer surface of the heat transfer tube is configured to contact the condensate and vaporize the condensate back into steam, wherein the heat transfer tube includes a plurality of pockets formed on the outer surface of the tube, each pocket including a pocket exit/entry portion having a smaller cross-sectional area than the cross-sectional area of the pocket at a root portion thereof adjacent the outer surface of the tube.
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公开(公告)号：US09814793B2
公开(公告)日：2017-11-14
申请号：US14599035
申请日：2015-01-16
Applicant: DRI-STEEM Corporation
Inventor： Cole K. Farley , Mark Allen Kirkwold , James M. Lundgreen
IPC: F28C3/08 , A61L2/10 , F24F5/00 , B01F3/04 , F25B39/02 , F25D7/00 , G05D9/12 , F24F6/04 , F24F1/00
CPC classification number: A61L2/10 , B01F3/04021 , B01F3/04078 , B01F3/04085 , F24F5/0035 , F24F6/043 , F24F2001/0088 , F25B39/02 , F25B39/028 , F25D7/00 , F28C3/08 , G05D9/12 , Y02B30/545 , Y10T137/0318 , Y10T137/7303
Abstract: A staged dry out process and control system for an evaporative media cooling system having a plurality of media stages that are selectively activated and deactivated by a control system is disclosed. The staged dry out process ensures that wet media stages are appropriately dried with minimal disruption to the staging strategy implemented by the control system. In one aspect, the staged dry out process monitors deactivated media stages to determine if the media stages reach a dry state before being activated. In another aspect, the staged dry out process locks out a media stage that has been in a wet state beyond a predetermined maximum time limit until the media stage attains a dry state. With this strategy the cooling system can operate without being required to completely shut down for a drying process.
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公开(公告)号：US20170131040A1
公开(公告)日：2017-05-11
申请号：US15283580
申请日：2016-10-03
Applicant: Dri-Steem Corporation
Inventor： James M. Lundgreen
CPC classification number: F28F1/422 , F24F3/14 , F24F6/18 , F28F1/00 , F28F13/187
Abstract: A heat transfer system includes a steam chamber that communicates in an open-loop arrangement with a first steam source for supplying steam to the steam chamber, the steam chamber including a steam exit for supplying steam to air at atmospheric pressure. A heat transfer tube communicates in a closed-loop arrangement with a second steam source for supplying steam to an interior surface of the heat transfer tube, the heat transfer tube vaporizing condensate forming within the heat transfer system back to steam that is supplied to the air via the steam exit. The outer surface of the heat transfer tube is configured to contact the condensate and vaporize the condensate back into steam, wherein the heat transfer tube includes a plurality of pockets formed on the outer surface of the tube, each pocket including a pocket exit/entry portion having a smaller cross-sectional area than the cross-sectional area of the pocket at a root portion thereof adjacent the outer surface of the tube.
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公开(公告)号：US20160187016A1
公开(公告)日：2016-06-30
申请号：US14852081
申请日：2015-09-11
Applicant: DRI-STEEM Corporation
Inventor： James M. Lundgreen , Jeffrey Martin Horejsi
CPC classification number: F24F6/18 , B01F3/04014 , B01F3/04021 , F24F13/0245 , F24F13/0254 , F24F13/0272 , Y10T29/49391 , Y10T29/49826
Abstract: A steam dispersion system is disclosed. The steam dispersion system includes a header and a mounting plate spaced from the header. A steam dispersion tube including a first end and a second end and an interior cavity defined between the first end and the second end is mounted between the mounting plate and the header. The steam dispersion tube defines a longitudinal axis. A biasing structure is mounted between the mounting plate and the header, wherein the biasing structure applies a biasing force on the steam dispersion tube along a direction parallel to the longitudinal axis of the steam dispersion tube when mounted between the header and the mounting plate.
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公开(公告)号：US09194595B2
公开(公告)日：2015-11-24
申请号：US14101590
申请日：2013-12-10
Applicant: DRI-STEEM Corporation
Inventor： James M. Lundgreen , Robert Russell Nelson
CPC classification number: F24F6/18 , B01F3/04056 , F24F13/22 , F24F2013/221
Abstract: A steam dispersion apparatus includes a steam chamber communicating in an open-loop arrangement with a first steam source for supplying steam to the steam chamber. The steam chamber includes a steam dispersion location at which steam exits therefrom at generally atmospheric pressure. A heat exchanger communicates in a closed-loop arrangement with a second steam source for supplying steam to the heat exchanger at a pressure generally higher than atmospheric pressure. The heat exchanger is located at a location that is not directly exposed to the air to be humidified, the heat exchanger being in fluid communication with the steam chamber so as to contact condensate from the steam chamber. The heat exchanger converts condensate formed by the steam chamber back to steam when the condensate contacts the heat exchanger.
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Patent Agency Ranking
公开(公告)号：US20150204554A1
公开(公告)日：2015-07-23
申请号：US14599035
申请日：2015-01-16
Applicant: DRI-STEEM Corporation
Inventor： Cole K. Farley , Mark Allen Kirkwold , James M. Lundgreen
CPC classification number: A61L2/10 , B01F3/04021 , B01F3/04078 , B01F3/04085 , F24F5/0035 , F24F6/043 , F24F2001/0088 , F25B39/02 , F25B39/028 , F25D7/00 , F28C3/08 , G05D9/12 , Y02B30/545 , Y10T137/0318 , Y10T137/7303
Abstract: A staged dry out process and control system for an evaporative media cooling system having a plurality of media stages that are selectively activated and deactivated by a control system is disclosed. The staged dry out process ensures that wet media stages are appropriately dried with minimal disruption to the staging strategy implemented by the control system. In one aspect, the staged dry out process monitors deactivated media stages to determine if the media stages reach a dry state before being activated. In another aspect, the staged dry out process locks out a media stage that has been in a wet state beyond a predetermined maximum time limit until the media stage attains a dry state. With this strategy the cooling system can operate without being required to completely shut down for a drying process.
Abstract translation: 公开了一种具有由控制系统选择性地激活和去激活的多个介质级的蒸发介质冷却系统的分级干燥过程和控制系统。 分阶段的干燥过程确保湿媒体阶段被适当地干燥，同时对控制系统实施的分期策略的干扰最小。 在一个方面，分级干燥过程监测去激活的介质阶段，以确定介质阶段在被激活之前是否达到干燥状态。 在另一方面，分级干燥过程将已经处于潮湿状态的介质阶段锁定超过预定的最大时限，直到介质阶段达到干燥状态。 通过这种策略，冷却系统可以在不需要完全关闭干燥过程的情况下运行。
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公开(公告)号：US20250012462A1
公开(公告)日：2025-01-09
申请号：US18615282
申请日：2024-03-25
Applicant: DRI-STEEM Corporation
Inventor： James M. Lundgreen , Cole K. Farley , Alvin J. Klisch , David Pflum , Daniel W. Celotta
Abstract: A gas-fired atmospheric pressure steam humidifier having high efficiency and ultra-low NOx(3) emissions is disclosed. In some examples, the gas-fired humidifier can have an efficiency of greater than 90 percent and a NOx(3) output of less than 20 parts per million (ppm). In one aspect, the humidifier includes a secondary heat exchanger having a first heat exchange section for pre-heating combustion air and a separate second heat exchange section for pre-heating make-up water, wherein the first and second heat exchange sections are in heat transfer communication with exhaust gases generated by the gas-fired burner and combustion blower assembly. In some examples, the first heat exchange section includes orifices for enabling flue gas recirculation.
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公开(公告)号：US20220404041A1
公开(公告)日：2022-12-22
申请号：US17855156
申请日：2022-06-30
Applicant: DRI-STEEM Corporation
Inventor： James M. Lundgreen , Cole K. Farley , Alvin J. Klisch , David Pflum , Daniel W. Celotta
Abstract: A gas-fired atmospheric pressure steam humidifier having high efficiency and ultra-low NOx(3) emissions is disclosed. In some examples, the gas-fired humidifier can have an efficiency of greater than 90 percent and a NOx(3) output of less than 20 parts per million (ppm). In one aspect, the humidifier includes a secondary heat exchanger having a first heat exchange section for pre-heating combustion air and a separate second heat exchange section for pre-heating make-up water, wherein the first and second heat exchange sections are in heat transfer communication with exhaust gases generated by the gas-fired burner and combustion blower assembly. In some examples, the first heat exchange section includes orifices for enabling flue gas recirculation.
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公开(公告)号：US20220381457A1
公开(公告)日：2022-12-01
申请号：US17681365
申请日：2022-02-25
Applicant: DRI-STEEM Corporation
Inventor： Daniel W. Celotta , Sukru Erisgen , Cole Kennedy Farley , James M. Lundgreen , Todd M. Poshusta
IPC: F24F6/18
Abstract: A steam dispersion system includes a header defining a first end and a second end, a plurality of steam dispersion tubes extending upwardly from the header, a condensate drain outlet located at the first end, a hollow pipe positioned within the header, the pipe defining a length extending in a direction generally from the first end to the second end, the pipe defining a main humidification steam inlet located at the first end and a main steam outlet that is within the header. The hollow pipe is configured to receive steam flowing in from the main steam inlet toward the main steam outlet. The pipe may define a plurality of orifices along the length thereof for allowing steam flowing through the pipe to enter the header for distribution through the dispersion tubes. A steam re-direction structure directs steam flow leaving through the main steam outlet back toward the first end of the header.
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公开(公告)号：US20190226704A1
公开(公告)日：2019-07-25
申请号：US16251908
申请日：2019-01-18
Applicant: DRI-STEEM Corporation
Inventor： James M. Lundgreen , Kenneth D. Shull
IPC: F24F11/30 , F24F11/63 , F24F6/02 , G06F16/901
Abstract: With respect to atmospheric steam generating humidifiers, the present disclosure resolves the problem of end-users not adjusting the drain interval of the humidifier by using an electronic controller to automatically choose an appropriate drain interval without requiring any user input. The electronic controller accomplishes this by receiving input data from a sensor that measures a water quality parameter, automatically determining a drain interval based on the received data, and sending an output control signal to a drain water control valve to execute a drain event in accordance with the drain interval. In some examples, the electronic controller utilizes a look-up table correlating the water quality parameter to a total dissolved solids or cycles of concentration value.
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