Filtration systems with selective pulse control

Patent metadata

Field	Value
Publication number	US-12521664-B2
Application number	US-202117925264-A
Country	US
Kind code	B2
Filing date	May 14, 2021
Priority date	May 15, 2020
Publication date	Jan 13, 2026
Grant date	Jan 13, 2026

Abstract

Embodiments herein relate to filtration systems that can pulse clean filter elements selectively, in specific patterns, to enhance cleaning efficacy. In an embodiment, a filtration system is included having a plurality of filter element mounts configured to retain filter elements, a compressed gas supply, and a plurality of valves in fluid communication with the compressed gas supply. The system further including a control circuit configured to control actuation of the plurality of valves. The system can operate in a first mode and a second mode. Wherein operating in a first mode includes opening valves according to a first valve actuation pattern and operating in a second mode includes opening valves according to a second valve actuation pattern. The system can be configured to periodically switch from the first mode to the second mode and compare the efficacy of the two modes. Other embodiments are also included herein.

First claim

The invention claimed is:

1 . A filtration system comprising:
a plurality of filter element mounts, wherein the plurality of filter element mounts are configured to retain filter elements; a compressed gas supply; a plurality of valves, wherein the plurality of valves are in fluid communication with the compressed gas supply; and a control circuit; wherein the control circuit is configured to
control actuation of the plurality of valves;
operate in a first mode, wherein operating in a first mode includes opening valves according to a first valve actuation pattern;
operate in a second mode, wherein operating in the second mode includes opening valves according to a second valve actuation pattern; and
periodically switch from the first mode to the second mode and compare the efficacy of the two modes; and
generate new valve actuation patterns by modifying parameters of existing valve actuation patterns.

2 . The filtration system of claim 1 , wherein the first mode represents a default operating mode.

3 . The filtration system of claim 1 , wherein the control circuit selects the second valve actuation pattern of the second mode from amongst a set of preconfigured valve actuation patterns.

4 . The filtration system of claim 1 , wherein the control circuit selects the second valve actuation pattern of the second mode based on factors including temporal factors.

5 . The filtration system of claim 1 , wherein the control circuit selects the second valve actuation pattern of the second mode based on a pattern matching algorithm.

6 . The filtration system of claim 1 , wherein the control circuit is configured to store generated valve actuation patterns as a part of a set of preconfigured valve actuation patterns.

7 . The filtration system of claim 1 , wherein the filtration system receives one or more valve actuation patterns from a remote site.

8 . The filtration system of claim 1 , wherein the efficacy is assessed based on a magnitude of a change in pressure drop in the filtration system achieved resulting from execution of a valve actuation pattern.

9 . The filtration system of claim 1 , wherein the efficacy is assessed based on a magnitude of pressure drop recovery in the filtration system achieved resulting from execution of a valve actuation pattern.

10 . The filtration system of claim 1 , wherein the efficacy is assessed based on a magnitude of sustained pressure drop recovery in the filtration system achieved resulting from execution of a valve actuation pattern.

11 . The filtration system of claim 1 , wherein the efficacy is assessed based on a magnitude of a change in velocity across a filter element achieved resulting from execution of a valve actuation pattern.

12 . The filtration system of claim 1 , wherein the control circuit adopts the second mode as a new default mode if the efficacy of the second mode is better than the efficacy of the first mode.

13 . The filtration system of claim 1 , wherein the second valve actuation pattern is different than the first valve actuation pattern in at least one operational parameter, wherein the operational parameters are selected from the group consisting of a horizontal actuation sequence, a vertical actuation sequence, a zone actuation sequence, a linked group actuation sequence, a valve opening time, an amount of time between sequential valve actuations, and a threshold pressure drop for triggering valve actuation.

14 . The filtration system of claim 1 , wherein the control circuit is configured to trigger actuation of at least one other treatment in combination with valve actuation patterns, wherein the other treatments include sonic excitation.

15 . The filtration system of claim 1 , wherein the control circuit is configured to select a valve actuation pattern based on a set of criteria including current temperature and humidity.

16 . A filtration system comprising:
a plurality of filter element mounts, wherein the plurality of filter element mounts are configured to retain filter elements; a compressed gas supply; a plurality of valves, wherein the plurality of valves are in fluid communication with the compressed gas supply; and a control circuit; wherein opening the plurality of valves results in a pulse of a gas directed at the filter element; wherein the control circuit is configured to
control actuation of the plurality of valves;
receive a set of predetermined valve actuation patterns from a remote site;
select a valve actuation pattern from the set of predetermined valve actuation patterns and execute the same such that valves are actuated in a sequence according to the predetermined valve actuation pattern.

17 . The filtration system of claim 16 , wherein the control circuit is configured to select a valve actuation pattern based on a set of criteria including current weather and environmental conditions, wherein current weather and environmental conditions include snowstorms, sandstorms, pollen loads, and plant debris.

18 . The filtration system of claim 16 , wherein the control circuit is configured to select a valve actuation pattern based on a set of criteria including data regarding particulates flowing into the filtration system.

19 . A filtration system comprising:
a plurality of filter element mounts, wherein the plurality of filter element mounts are configured to retain filter elements; a compressed gas supply; a plurality of valves, wherein the plurality of valves are in fluid communication with the compressed gas supply; and a control circuit; wherein the control circuit is configured to
control actuation of the plurality of valves;
operate in a first mode, wherein operating in a first mode includes opening valves according to a first valve actuation pattern;
operate in a second mode, wherein operating in the second mode includes opening valves according to a second valve actuation pattern; and
periodically switch from the first mode to the second mode and compare the efficacy of the two modes; and
store generated valve actuation patterns as part of a set of preconfigured valve actuation patterns.

Assignees

• Donaldson Co Inc

Inventors

• Tiffany Jason A
• Dejong Richard P

Classifications

• B01D2279/60

  for the intake of internal combustion engines or turbines · CPC title

• B01D46/448

  by temperature measuring · CPC title

• B01D46/446 Primary

  by pressure measuring · CPC title

• B01D46/429

  Means for wireless communication · CPC title

• B01D46/4272

  Special valve constructions adapted to filters or filter elements · CPC title