Title:
CONSTANT-TEMPERATURE WATER SUPPLY SYSTEM EMPLOYING CARBON DIOXIDE HEAT PUMP, AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/227538
Kind Code:
A1
Abstract:
A constant-temperature water supply system employing a carbon dioxide heat pump, and a control method therefor. The constant-temperature water supply system comprises a primary side loop, a secondary side water supply pipeline having a water inlet and a water outlet, a carbon dioxide heat pump water heater (1) provided in the primary side loop, and a heat exchanger (2) provided between the primary side loop and the secondary side water supply pipeline. A returned water temperature sensor (5) measures the temperature of returned water, and multiple returned water tank temperature sensors (44) measure the temperature of a returned water tank (4). Even if the temperature of returned water flowing out of a first heat exchange tube (21) fluctuates, the returned water can be inputted at a position in the returned water tank (4) having a similar temperature, such that water in the returned water tank (4) is always in a stably layered state, thereby preventing temperature of a water flow delivered from the returned water tank (4) to the carbon dioxide heat pump water heater (1) from fluctuating, and therefore allowing for constant-temperature water supply.
Inventors:
TANG XIAOLIANG (CN)
XIONG DAN (CN)
PAN HAO (CN)
YOU JUN (CN)
ZHOU DANONG (CN)
KANG QIANG (CN)
SONG XIAOFEI (CN)
XIONG DAN (CN)
PAN HAO (CN)
YOU JUN (CN)
ZHOU DANONG (CN)
KANG QIANG (CN)
SONG XIAOFEI (CN)
Application Number:
PCT/CN2020/142098
Publication Date:
November 18, 2021
Filing Date:
December 31, 2020
Export Citation:
Assignee:
JIANGSU SUJING GROUP CO LTD (CN)
International Classes:
F24D17/02; F24D19/10; F24H4/04
Foreign References:
| CN102652244A | 2012-08-29 | |||
| CN107796040A | 2018-03-13 | |||
| CN111550862A | 2020-08-18 | |||
| CN103673295A | 2014-03-26 | |||
| CN204665748U | 2015-09-23 | |||
| CN206496408U | 2017-09-15 | |||
| JP2006329569A | 2006-12-07 | |||
| JP2005114268A | 2005-04-28 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)
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