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公开(公告)号：US12031781B2
公开(公告)日：2024-07-09
申请号：US17631975
申请日：2020-07-21
发明人： Derek Sumsion , Michael Watson , Jon Camp
CPC分类号： F28G1/166 , B08B9/023 , B08B13/00 , F28G15/003 , F28G15/04 , B08B2209/02
摘要： A system capable of autonomous operation is disclosed for cleaning a tube bundle of a heat exchanger core. The system comprises a lance for directing a jet of fluid into spaces between the tubes of the bundle, a carriage for advancing the lance into the bundle, a mount movable relative to the carriage for holding the lance, and a sensor for detecting relative movement between the lance and the carriage, so as to detect when a reaction force acting on the lance upon encountering an obstruction in the tube bundle exceeds a predetermined limit.
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公开(公告)号：US11965703B2
公开(公告)日：2024-04-23
申请号：US17260987
申请日：2019-07-19
发明人： Jian Yang
CPC分类号： F28G1/12 , F28F9/02 , F28G15/00 , F28G2015/006
摘要： A heat exchanger end cover integrated with a rubber ball cleaning apparatus is disclosed, including a ball collector and a booster pump which are arranged outside the heat exchanger end cover, and a ball-receiving filter screen arranged inside the heat exchanger end cover. The heat exchanger end cover is connected to a cooling water inlet pipe joint and a cooling water outlet pipe joint, the cooling water inlet pipe joint is provided with a water suction port and a ball-dispensing port, and the cooling water outlet pipe joint is provided with a water discharge port and a ball-receiving port.
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3.发明公开公开(公告)号：US20240125568A1
公开(公告)日：2024-04-18
申请号：US18275689
申请日：2022-02-07
发明人： Xiaoping ZOU , Thomas Edward Wagler , Marc Bacon , Andreas Tsangaris , Shadi Saberi , Douglas Michael Feasby , Jonathan Enns , Scott Reid
CPC分类号： F28G15/003 , F28G1/163
摘要： A process and system for automated online fouling prevention of vertical shell and tube gas-to-gas heat exchangers is provided. The process and system of the invention utilize the flow velocity of the gas within the tubes to facilitate cleaning of the tubes by adding, when necessary, grit to the contaminated gas flow.
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公开(公告)号：US20240102753A1
公开(公告)日：2024-03-28
申请号：US18535823
申请日：2023-12-11
申请人： STONEAGE, INC.
摘要： A data logger device for monitoring operation of a flexible lance drive apparatus is disclosed that includes a cylindrical housing removably connected to an air fluid pressure line to the drive apparatus, a circuit board mounted in the housing, a pressure sensing switch mounted on the circuit board and communicating with the fluid in the pressure line, and a processor and memory on the board operable to log time at which the switch changes state between two predetermined states.
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公开(公告)号：US11788807B2
公开(公告)日：2023-10-17
申请号：US17954727
申请日：2022-09-28
申请人： Coil Flow Max, Inc.
CPC分类号： F28G1/166 , B01D21/267 , B08B3/024 , B08B3/14 , B08B17/025 , F28G9/00 , F28G15/003 , F28G2015/006
摘要： A method of cleaning an HVAC coil unit located above a drain basin. One step of the method involves providing a supply and collection assembly having a reservoir containing liquid cleaning solution, a pump operative to output the liquid cleaning solution through a supply outlet, and a vacuum source operative to draw in used liquid cleaning solution through a collection inlet. According to another step, a nozzle device in fluid communication with the supply outlet is also provided, the nozzle device having a delivery face. A further step involves providing a fluid return tool in fluid communication with the collection inlet, and positioning the fluid return tool in the drain basin. According to a further step, the delivery face of the nozzle device is moved across a surface of the HVAC coil unit to deliver the cleaning solution into areas between fins thereof.
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公开(公告)号：US11668536B2
公开(公告)日：2023-06-06
申请号：US16358426
申请日：2019-03-19
申请人： Suncor Energy Inc.
发明人： Fei Qi , Mathew Walker
CPC分类号： F28G15/003 , F22B35/18 , F22B37/56 , G01N17/008 , F28F27/00 , F28F2200/00
摘要： The following provides a system and method to predict an indicator of tube fouling in a fired apparatus such as a boiler. Historical data can be collected when the tubing is still considered to be clean, and used to build a first model between an indicator of fouling, such as tube skin temperature, and boiler load. The actual measurement of that indicator of fouling can then be compared against the model output, such that the error between the model and measurement is considered an indication of the tube fouling. Moreover, the rate of change of the model error can be used to measure the fouling rate. Next, historical data on the fluid feed quality can be collected and together with the historical error rate change data can be combined to develop a second model. This second model reflects how fluid feed quality variables may affect the fouling rate over time.
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公开(公告)号：US20230134449A1
公开(公告)日：2023-05-04
申请号：US17255926
申请日：2020-09-09
申请人： Carrier Corporation
发明人： Douglas Auyer , Kurt Handley
摘要： A transportation container includes a storage volume. A refrigeration system is contained within the storage volume. The refrigeration system includes a fan configured to ingest exterior air, a condenser coil immediately downstream of the fan, and a vent configured exhaust spent cooling air from the storage volume. A controller is configured to control the refrigeration system. the controller includes instructions configured to cause the refrigeration system to detect an indication of operational deterioration of a transportation container refrigeration system, reverse a rotational direction of an airflow fan such that air is drawn over a refrigeration coil and expelled from the transportation container using the airflow fan, and revert the rotational direction of the airflow fan at a conclusion of a cleaning operation.
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公开(公告)号：US20230081044A1
公开(公告)日：2023-03-16
申请号：US17848568
申请日：2022-06-24
发明人： DIBAKAR SUTRADHAR
IPC分类号： F28G15/00
摘要： A system (100) for servicing a heat exchanger is disclosed that includes a clog detection assembly (108) which further includes a light source (110) configured to be positioned on a first side of a component associated with the heat exchanger and illuminate the component. The clog detection assembly (108) further includes a light detector (112) configured to be positioned on a second side opposite the first side of the component to detect transmitted light and correspondingly generate a first signal. The system (100) further includes a processing device (102) communicatively coupled to the light detector (112). The processing device (102) analyzes the first signal to detect presence of a clog in association with the component. The processing device (102) may further cause a cleaning nozzle to move across the component, to perform a cleaning operation on the component.
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公开(公告)号：US20230028473A1
公开(公告)日：2023-01-26
申请号：US17959237
申请日：2022-10-03
申请人： STONEAGE, INC.
摘要： An apparatus for sensing an obstruction within a tube being cleaned and repetitively advancing and retracting a flexible high pressure fluid cleaning lance within the tube is disclosed. The apparatus monitors drive roller/belt position and actual hose position, compares the belt (expected travel) to hose position (travel) and generates a position difference, or mismatch. If the mismatch is above a predetermined level, the drive motor direction is reversed for a predetermined time interval, and forward operation restored after the predetermined time interval; and the sequence of repeating the reversing and restoring operations is continued until the position difference or mismatch no longer exceeds the predetermined difference threshold.
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公开(公告)号：US11543161B2
公开(公告)日：2023-01-03
申请号：US17154287
申请日：2021-01-21
发明人： John Allen Broadbent , John Friend
摘要： An ice maker for forming ice having a refrigeration system, a water system, and a control system. The refrigeration system includes a compressor, a condenser, an ice formation device, and a condenser fan comprising a fan blade and a condenser fan motor for driving the fan blade. The water system supplies water to the ice formation device. The control system includes a controller adapted to operate the condenser fan motor at a first speed in a forward direction when the ice maker is making ice and adapted to operate the condenser fan motor at a second speed in a reverse direction when the ice maker is not making ice. Operating the condenser fan motor at the second speed in the reverse direction is sufficient to reduce the amount of dirt, lint, grease, dust, and/or other contaminants on or in the condenser.
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