Evaporative condenser and air conditioner including same

Patent metadata

Field	Value
Publication number	US-12429259-B2
Application number	US-202118253855-A
Country	US
Kind code	B2
Filing date	Nov 26, 2021
Priority date	Nov 27, 2020
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

The present invention provides an evaporative condenser capable of ensuring cooling performance without generating pressure loss, and provides an evaporative condenser comprising: a condensation module; a water injection module for spraying; and a blowing module, wherein the condensation module has stacked N header rows, each comprising: a first header which is disposed at one side thereof and in which a flow path is formed; and a plurality of connecting tubes for connecting the flow paths of the first header and the second header between the first header and the second header, and, here, N is a natural number greater than or equal to 2.

First claim

The invention claimed is:

1. An evaporative condenser comprising:
a condensation module including a fluid passage;
a water spray disposed on the condensation module and spraying water passing through the condensation module; and
a blower disposed on one side of the condensation module and providing air passing through the condensation module,
wherein N header rows are stacked in the condensation module in a third direction, where N is a natural number of 2 or more, wherein the header row includes a first header extending in a first direction and having a flow path formed therein, a second header extending in the first direction and having a flow path formed therein, and a plurality of connection tubes extending in a second direction between the first header and the second header and connecting the flow path of the first header and the flow path of the second header,
the first to third directions are different from each other, and
the condensation module, the water spray, and the blower are arranged to pass the water sprayed by the water spray and the air provided by the blower between the plurality of connection tubes of the condensation module,
wherein, in the condensation module, a fluid inlet is connected to a first header row, and a fluid outlet is connected to an Nth header row,
the third direction stacked from the first header row to the Nth header row is opposite to a direction in which the blower supplies the air, and
in the condensation module, the fluid inlet is connected to the first header of the first header row, and a flow path hole is formed between the first header of the first header row and the first header of a second header row disposed above the first header row.

2. The evaporative condenser of claim 1 , wherein the header rows comprise a 2-1 direction header row in which a fluid flows in the plurality of connection tubes in a 2-1 direction from the first header to the second header, and a 2-2 direction header row in which a fluid flows in the plurality of connection tubes in a 2-2 direction from the second header to the first header,
wherein A header rows sequentially stacked from the first header row are the 2-1 direction header row, and
wherein the evaporative condenser satisfies A>M, and A+M≤N, and A≥2, where the number of 2-1 or 2-2 direction header rows continuously arranged downwardly from the Nth header row including the Nth header row is M, and A and M are natural numbers.

3. The evaporative condenser of claim 1 , wherein the header rows comprise a 2-1 direction header row in which a fluid flows in the plurality of connection tubes in a 2-1 direction from the first header to the second header, and a 2-2 direction header row in which a fluid flows in the plurality of connection tubes in a 2-2 direction from the second header to the first header,
wherein A header rows sequentially stacked from the first header row are the 2-1 direction header row, B header rows sequentially stacked on an Ath header row are the 2-2 directional header row, and C header rows sequentially stacked on the Ath header row and a Bth header row are the 2-1 directional header row,
wherein the evaporative condenser satisfies A≥B, A>C, and A+B+C≤N, where A, B, and C are natural numbers.

4. The evaporative condenser of claim 1 , wherein the header rows comprise a 2-1 direction header row in which a fluid flows in the plurality of connection tubes in a 2-1 direction from the first header to the second header, and a 2-2 direction header row in which a fluid flows in the plurality of connection tubes in a 2-2 direction from the second header to the first header,
wherein a fluid introduced into the fluid inlet alternately passes through the 2-1 direction header row and the 2-2 direction header row, and is discharged to the fluid outlet, and
wherein the number of header rows in the 2-1 or 2-2 direction through which the fluid passes decreases from the fluid inlet to the fluid outlet.

5. The evaporative condenser of claim 1 , wherein a fluid inlet is connected to a first header of a first header row, and a fluid outlet is connected to an Nth header row,
wherein the plurality of connection tubes include a 2-1 direction connection tube in which a fluid flows in a 2-1 direction from the first header to the second header, and a 2-2 direction connection tube in which a fluid flows in a 2-2 direction from the second header to the first header,
wherein a fluid introduced into the fluid inlet alternately passes through the 2-1 direction connection tube and the 2-2 direction connection tube, and is discharged to the fluid outlet,
wherein the number of connection tubes through which the fluid passes decreases from the fluid inlet to the fluid outlet.

6. The evaporative condenser of claim 5 , wherein, in a header row including the 2-1 direction connection tube and the 2-2 direction connection tube, a baffle is disposed at a corresponding position between the 2-1 direction connection tube and the 2-2 direction connection tube in the first or second header.

7. An air conditioner comprising:
an evaporator, an expansion valve, a compressor, and a condenser, in a refrigerant cycle,
wherein the condenser is the evaporative condenser of claim 1 .

8. The air conditioner of claim 7 , comprising:
an indoor unit in which the evaporator is disposed;
an outdoor unit in which the evaporative condenser is disposed; and
a discharge flow path connecting a second blower to an indoor space and supplying indoor air to the second blower.

9. The air conditioner of claim 7 , comprising:
a case in which the evaporator, the expansion valve, the compressor, and the evaporative condenser are disposed;
an air flow path connected to an outdoor space to provide air to the evaporative condenser; and
a water supply flow path connected to a water supply source to provide water to the evaporative condenser.

10. The air conditioner of claim 9 , wherein the evaporator is disposed above the evaporative condenser, and
the air conditioner further comprises a condensed water supply flow path formed to supply condensed water formed in the evaporator to the evaporative condenser.

11. The air conditioner of claim 7 , comprising:
a supply flow path supplying air from an outdoor space to an indoor space;
a discharge flow path discharging air from the indoor space to the outdoor space; and
a ventilation heat exchanger disposed on the supply flow path and the discharge flow path and configured to cross and heat-exchange between the air supplied to the indoor space and the air discharged to the outdoor space,
wherein the discharge flow path is connected to the blower.

12. The air conditioner of claim 7 , comprising:
a supply flow path supplying air from an outdoor space to an indoor space;
a discharge flow path discharging air from the indoor space to the outdoor space; and
a cooler disposed on the supply flow path and including a water spray,
wherein the discharge flow path is connected to the blower.

13. The air conditioner of claim 7 , further comprising:
a circulation flow path circulating air in an indoor space;
a furnace disposed on the circulation flow path; and
a coil A disposed on the circulation flow path above the furnace,
wherein the evaporator is the coil A.

14. The air conditioner of claim 7 , comprising:
an outdoor unit in which the condenser is disposed; and
an indoor unit in which the evaporator is disposed,
wherein the outdoor unit includes:
an evaporative cooler disposed on an inflow flow path into which air in an outdoor space is introduced, including a dry channel and a wet channel, and cooling the air passing through

Assignees

• Kyungdong Navien Co Ltd

Inventors

• Han Jae Hyun
• Jeong Chul Ki
• Lee Dong Keun
• Hwang In Soo

Classifications

• F25B2339/041

  of evaporative condensers · CPC title

• F25B39/04 Primary

  Condensers · CPC title

• F28D1/024

  with an air driving element · CPC title

• F28F2245/02

  hydrophilic · CPC title

• F28F13/003

  by using permeable mass, perforated or porous materials (F28F13/18 takes precedence) · CPC title