Balance water mixing and automatic draining valve and hot water system with same

Abstract

The invention discloses a balance water mixing and automatic draining valve and a hot water system with the same. The balance water mixing and automatic draining valve comprises a movable valve block and a fixed valve block. A first cold water inlet, a second cold water inlet, a cold water outlet, a hot water inlet and a mixed water outlet are arranged on the fixed valve block, and a control device drives the movable valve block to move, so that the first cold water inlet can be communicated with the cold water outlet or can be disconnected from the cold water outlet, and the hot water inlet and the second cold water inlet can be synchronously communicated with the mixed water outlet or can be synchronously disconnected from the mixed water outlet. When the valve is closed, a cold water pipeline and a hot water pipeline can be automatically drained. The balance water mixing and automatic draining valve and the hot water system have the advantages that when cold water flows into the bottom of a heat storage water tank of the hot water system with the balance water mixing and automatic draining valve, the same quantity of hot water can flow out from the upper portion of the heat storage water tank, so that the actual water storage quantity of the heat storage water tank is in dynamic balance, the water of the hot water system can be discharged in a low-pressure jacking manner, the pressure on the heat storage water tank and the pressure on each pipeline are reduced, the phenomenon of a 'water hammer' further can be eliminated, the system is prevented from being impacted by the 'water hammer', expansion cracking, water leakage or deformation of the system can be prevented, and service lives of the heat storage water tank and pipe fittings can be effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of plumbing pipe fittings, and more specifically, relates to a balanced water mixing automatic emptying valve, and also relates to a hot water system using the balanced water mixing automatic emptying valve. Background technique [0002] Traditional hot water systems used to provide hot water to users such as figure 1 As shown, the first cold water inlet pipeline 39 that adds cold water to the hot water storage tank 41 and the second cold water inlet pipeline 44 that provides cold water mixed with the hot water in the hot water outlet pipeline 40 of the hot water storage tank 41 are Separately installed, a water inlet valve 43 is provided on the first cold water inlet pipeline 39, cold water flows into the hot water storage tank 41 through the first cold water inlet pipeline 39, and when the hot water storage tank 41 is filled with water, it is closed The water inlet valve 43 starts heating treatment, and t...

AI Technical Summary

Problems solved by technology

As the user continues to use the water in the hot water storage tank 41, after the water in the hot water storage tank 41 is used up, the water inlet valve 43 on the first cold water inlet pipeline 39 in the hot water storage tank 41 needs to be opened again , at this time, cold water enters the hot water storage tank 41 through the first cold water inlet pipeline 39. During this process, since the water inlet valve 43 is often opened and closed, the phenomenon of "water hammer" is prone to occur, that is, the cold water enters the heat storage tank. The water tank 41 will produce impact force on the hot water storage tank 41 and the pipe fittings, causing the hot water storage tank 41 and the pipe fittings to deform or burst, and the pipeline is prone to the phenomenon of "running, dripping and leaking". The hot water storage tank 41 and the pipe fittings The service life is short, it needs to be manufactured with thicker steel plates, and the maintenance cost is high

Secondly, the cold water inlet 42 connected to the first cold water inlet pipeline 39 is arranged at one end of the bottom of the hot water storage tank 41, and the hot water outlet 38 of the hot water storage tank 41 is arranged at the bottom of the other end of the hot water storage tank 41, so that After closing the hot water and cold water mixing valve 45, the hot water outlet pipeline 40 cannot be emptied, and the next time you need to wait for a period of time to drain the cold water in the hot water outlet pipeline 40 of the hot water storage tank before using it. Hot water and the first cold water inlet pipeline 39 cannot be emptied, which is inconvenient to use, especially in cold weather seasons or regions. The water in the water inlet pipe 39 will freeze, which will lead to serious consequences that the hot water outlet pipe 40 of the hot water storage tank 41 cannot discharge water or the first cold water inlet pipe 39 cannot enter water, which seriously affects the use efficiency of the equipment

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