Condensing type constant temperature gas water heater

Abstract

The invention discloses a condensing constant temperature gas water heater, comprising a gas distribution device, an inflamer unit and a flame induction system which are arranged on the upper part of the gas distribution device, a cold water inlet pipeline and a water flow sensor which is connected with the cold water inlet pipeline, a gas inlet pipeline, a hot water outlet pipeline, a condenser which is arranged on the upper part of the heater and is provided with a pipe coil and a main heat exchanger which is communicated with a mild water outlet pipe of the condenser, wherein, the lower part of the condenser is communicated with a condensed water processor through a condensed water drain pipe and is communicated with a regulation and control part for adjusting the temperature and the gas amount as well as the amount of wind; the regulation and control part comprises a computer board, a hot water temperature sensor which is in electric connection with the computer board, an over temperature controller, a frequency conversion fan and a gas proportional valve. The invention is based on a forced exhaust type heater and is provided with an independent stainless steel sylphon bellowss pipe coil type heat exchanger outside and realizes the complete separation of the primary heat exchange, the secondary heat exchange and the collection of condensed water. Moreover, the thermal efficiency is up to more than 96 percents, the exhaust temperature is reduced to about 100 DEG C, the infection of condensed water on the main heat exchanger is effectively reduced, and the service life of the heater is guaranteed.

Description

technical field [0001] The invention relates to a gas water heater, in particular to a condensing constant temperature gas water heater with a condensing heat exchange device. Background technique [0002] Generally, a gas water heater, such as the Chinese patent [Foshan Shunde District Wanhe Group Co., Ltd.] with application number 200420094236.8, discloses a gas water heater whose structure includes a smoke exhaust duct, a fan, a heat exchanger, and a water-gas linkage valve. , burner, water tank and shell, in which a coaming plate is installed between the water tank and the burner to form a semi-closed combustion chamber, and the lower part of the combustion chamber is provided with a number of exhaust channels for air intake to improve the utilization rate of the burner . However, no improvement has been proposed in terms of heat exchange structure. [0003] Aspect constant temperature gas water heater, also have some patent applications, as, application number is the ...

AI Technical Summary

Problems solved by technology

[0006] Condensing forced-exhaust gas water heaters can improve part of the thermal efficiency, but due to the limitations of the structure and principle of ordinary forced-exhaust gas water heaters, the improvement in thermal efficiency is not obvious

[0007] Condensing water heaters that increase the number of heat-absorbing fins of the heat exchanger and the heat-exchanging area, in order to prevent corrosion caused by contact between condensed water and heat-absorbing fins, increase material costs and high manufacturing costs, the effect is not ideal, and the service life is short. hard to promote

Images