Air source water heater system and its control method

A control method and technology for water heaters, which are applied to fluid heaters, lighting and heating equipment, etc., can solve the problems of insufficient water output and low use efficiency of shell-and-tube heat exchangers, so as to increase the use efficiency and prevent frost damage. , the effect of improving heat transfer capacity

CN103528188BActive Publication Date: 2016-09-21TCL AIR CONDITIONER ZHONGSHAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-09-21

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Abstract

The invention discloses an air source water heater system and a control method thereof. The air source water heater system includes a condenser, a four-way valve, a shell-and-tube heat exchanger, an electronic expansion valve, a frequency conversion compressor, an outdoor fan, a mixing A water heater, a first electronic flow valve, a second electronic flow valve, a controller, a first temperature sensor, a second temperature sensor, and a third temperature sensor; wherein one end of the first electronic flow valve is connected to the outlet pipe of the condenser, The other end is connected to the water mixer; one end of the second electronic flow valve is connected to the tap water pipe, and the other end is connected to the water mixer; the controller is used to control the frequency conversion compressor according to the temperature corresponding to the current ambient temperature according to the temperature detected by the first temperature sensor. to operate at a preset frequency, and control the outdoor fan to run at a preset speed corresponding to the current ambient temperature; the controller is also used to control the first electronic flow valve and the temperature detected by the third temperature sensor according to the temperature detected by the second temperature sensor and the third temperature sensor. The opening degree of the second current flow valve.
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Description

technical field

[0001] The invention relates to the technical field of heating, in particular to an air source water heater system and a control method thereof. Background technique

[0002] As we all know, there are currently air source water heaters on the market, but there are mainly two types of products: circulating water heaters and direct heating water heaters. The circulating hot water machine takes hot water for a long time and cannot supply hot water continuously; while the existing direct heating water machine is used in the northern region where the ambient temperature is low, due to the low temperature of the incoming water, the heating capacity is also low , but the outlet water temperature should still be kept at 55 degrees, so the water flow is very small, and it is prone to insufficient hot water. In addition, when defrosting the shell-and-tube heat exchanger of the existing direct-heating water heater, in order to prevent the condenser from freezing, two s...

Examples

Embodiment Construction

[0036] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The invention provides an air source water heater system.

[0038] refer to figure 1 , figure 1 It is a structural schematic diagram of a preferred embodiment of the air source water heater system of the present invention. The air source water heater system provided in this embodiment includes a condenser 10, a four-way valve 26, a shell-and-tube heat exchanger 11, an electronic expansion valve 27, an inverter compressor 12, an outdoor fan 13, a water mixer 14, a first An electronic flow valve 15, a second electronic flow valve 16, a controller (not shown in the figure), a first temperature sensor 17 for detecting ambient temperature, and a second temperature sensor 18 for detecting the temperature of the refrigerant at the outlet of the condenser 10 , and a third temperature sensor 19 for detecting the wate...