Energy-saving water mixing heat supply unit

Abstract

The invention relates to the field of heat supply units, in particular to a novel energy-saving water mixing heat supply unit based on an adjustable ejector. The low-area circulating system and the high-area circulating system are connected through an adjustable ejector; the adjustable ejector comprises an adjusting assembly, a working fluid inlet chamber, an ejected fluid inlet chamber, a mixing diffusion chamber and a pressure stabilizing chamber, the working fluid inlet chamber is provided with a working fluid inlet, and the working fluid inlet is communicated with a high-area primary net water return pipe; the side wall, facing the ejected fluid inlet chamber, of the working fluid inlet chamber is fixedly provided with an ejection groove in the horizontal direction, one end of the ejection groove is communicated with the working fluid inlet chamber, the other end of the ejection groove is an ejection nozzle, the ejection nozzle is located in the ejected fluid inlet chamber, the ejected fluid inlet chamber is provided with an ejected fluid inlet, and the ejected fluid inlet is communicated with the ejection nozzle. The ejected fluid inlet is communicated with the low-area primary net water return pipe, and the outlet of the pressure stabilizing chamber is communicated with the low-area secondary net water supply pipe. Stable and reliable heat supply effect can be guaranteed, and electricity can be saved during operation.

Description

technical field [0001] The invention relates to the field of heating units, in particular to a novel energy-saving mixed water heating unit based on an adjustable ejector. Background technique [0002] like figure 1 As shown, the existing hybrid heat exchange unit includes an electric regulating valve, a circulating water pump, a temperature sensor, a pressure reducing valve, and the like. Mixed water heat exchange units are widely used in heating systems due to their simple structure, low investment, no heat exchange links, and high utilization of heat energy. [0003] In the existing water mixing unit, the secondary network return pipes in the high area and the low area are respectively merged into the primary network return jellyfish pipe. The return water pressure in the high area is high. In order to prevent the overpressure of the return water pressure in the low area, a pressure reducing valve is arranged between the return water of the secondary network in the high...

AI Technical Summary

Problems solved by technology

As a resistance part, the pressure reducing valve has throttling loss during operation, which increases the operating power consumption of the heating unit

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