Electrostatic precipitating apparatus and air conditioning system having same

Patent metadata

Field	Value
Publication number	US-11654386-B2
Application number	US-202016856004-A
Country	US
Kind code	B2
Filing date	Apr 22, 2020
Priority date	May 14, 2019
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

An electrostatic precipitating apparatus for an air conditioning system is disclosed. The precipitating apparatus includes an electrostatic precipitator including a plurality of discharge electrodes to which a voltage is applied and a plurality of electrostatic precipitating electrodes each disposed between the discharge electrodes and grounded, a washing water supply spraying the washing water to the electrostatic precipitator, and a frame assembly fixed to the duct to support the electrostatic precipitator. The frame assembly is fixed to the duct to support the electrostatic precipitator, and includes a prestressing locking member fixed to inside of the duct in a state in which a pressing force is applied to the electrostatic precipitator.

First claim

The invention claimed is:

1. An electrostatic precipitating apparatus for an air conditioning system having a duct with a gas inlet and a gas outlet, the apparatus comprising:
an electrostatic precipitator including a plurality of discharge electrodes to which a voltage is applied and a plurality of electrostatic precipitating electrodes each disposed between the plurality of discharge electrodes and grounded;
a washing water supply disposed above the electrostatic precipitator, to spray washing water downward to the electrostatic precipitator; and
a frame assembly fixed to the duct to support the electrostatic precipitator, the frame assembly including a prestressing locking member comprising a pressing rod,
wherein the prestressing locking member is fixed to inside of the duct and is configured to press the frame assembly inwardly by the pressing rod pressing the frame assembly,
wherein a downward end of electrostatic precipitating electrode is formed inclined downward from both sides of the each electrostatic precipitating electrode toward a center of the downward end of the each electrostatic precipitating electrode in a width direction of the each electrostatic precipitating electrode such that the each electrostatic precipitating electrode is provided with a downward end tip protruding downward at the center of the downward end of the each electrostatic precipitating electrode.

2. The electrostatic precipitating apparatus according to claim 1 , wherein the prestressing locking member includes a casing, an insulator disposed in the casing, the pressing rod coupled to the insulator to protrude downward, and a pressing support fixedly coupled to the pressing rod to resiliently support the electrostatic precipitator.

3. An electrostatic precipitating apparatus for an air conditioning system having a duct with a gas inlet and a gas outlet, the apparatus comprising:
an electrostatic precipitator including a plurality of discharge electrodes to which a voltage is applied and a plurality of electrostatic precipitating electrodes each disposed between the discharge electrodes and grounded;
a washing water supply to spray the washing water to the electrostatic precipitator; and
a frame assembly fixed to the duct to support the electrostatic precipitator, the frame assembly including a prestressing locking member fixed to inside of the duct in a state in which a pressing force is applied to the electrostatic precipitator,
wherein the electrostatic precipitator includes a plurality of first tie rods fixed to the plurality of discharge electrodes to pass through the plurality of electrostatic precipitating electrodes, and a plurality of second tie rods fixed to the plurality of electrostatic precipitating electrodes to pass through the plurality of discharge electrodes,
wherein the frame assembly further includes a plurality of upper supports to which some of the first tie rods are fixed, and
wherein the prestressing locking member is fixedly provided to press the upper support inward.

4. An electrostatic precipitating apparatus for an air conditioning system having a duct with a gas inlet and a gas outlet, the apparatus comprising:
an electrostatic precipitator including a plurality of discharge electrodes to which a voltage is applied and a plurality of electrostatic precipitating electrodes each disposed between the discharge electrodes and grounded;
a washing water supply to spray the washing water to the electrostatic precipitator; and
a frame assembly fixed to the duct to support the electrostatic precipitator, the frame assembly including a prestressing locking member fixed to inside of the duct in a state in which a pressing force is applied to the electrostatic precipitator,
further comprising a washing water treatment section disposed under the electrostatic precipitator to accommodate the washing water falling from the electrostatic precipitator, the washing water treatment section comprising:
a water reservoir containing the washing water;
an adsorption belt formed in an endless track and accommodated in the water reservoir; and
a roller connected to the adsorption belt to move the adsorption belt.

5. The electrostatic precipitating apparatus according to claim 4 , wherein the adsorption belt is formed from a mesh material.

6. The electrostatic precipitating apparatus according to claim 4 , wherein one side of the adsorption belt is immersed in the washing water, and another side of the adsorption belt is located above the washing water.

7. The electrostatic precipitating apparatus according to claim 4 , wherein the washing water treatment section further comprises a scraper configured to scrape off dust attached to the adsorption belt and separate the dust from the adsorption belt.

8. The electrostatic precipitating apparatus according to claim 7 , wherein the scraper comprises a support part installed upright from the bottom of the water reservoir, and an elastic tip part protruding upward from the support part.

9. The electrostatic precipitating apparatus according to claim 7 , wherein the scraper comprises a rotatable rotary rod and a plurality of paddles circumferentially spaced apart from each other to protrude from an outer circumferential surface of the rotary rod.

10. The electrostatic precipitating apparatus according to claim 7 , wherein a separation container is disposed in a space defined by a blocking member below the scraper.

11. The electrostatic precipitating apparatus according to claim 1 , wherein a discharge guide having a channel is disposed directly below the downward end tip, the discharge guide extending in a stacking direction of the plurality of electrostatic precipitating electrodes.

12. The electrostatic precipitating apparatus according to claim 11 , wherein a part of each electrostatic precipitating electrode is provided with a fixing hole, through which a fixing rod is inserted, wherein a support hanger is coupled to the fixing rod to support the discharge guide.

13. The electrostatic precipitating apparatus according to claim 12 , wherein the support hanger comprises a support bar extending in the stacking direction of the plurality of electrostatic precipitating electrodes fixed to the discharge guide, and a plurality of connection protrusions protruding upward from the support bar and into which the part of each electrostatic precipitating electrode is inserted, wherein each connection protrusion is provided with a support hole into which the fixing rod is inserted.

Assignees

• Doosan Enerbility Co Ltd

Inventors

• Lee Jin Woon
• Lee Sang Rin
• Hwang Jae Dong
• Moon Sang Chul

Classifications

• F24F8/108

  using dry filter elements · CPC title

• F24F8/22

  using UV light · CPC title

• F24F8/192

  by electrical means, e.g. by applying electrostatic fields or high voltages · CPC title

• B03C3/47

  flat, e.g. plates, discs, gratings · CPC title

• B01D46/681

  by scrapers, brushes or the like · CPC title