Water-saving device for domestic water heater

Abstract

The invention discloses a domestic water heater water-saving device which comprises a water storage tank, a self-suction tee, an inner casing pipe, an outer casing pipe and a sliding valve element, wherein the self-suction tee is connected with the water outlet end of a cold-hot water regulation valve; a water suction hole of the self-suction tee is formed in the water storage tank; a water outlet of the self-suction tee is connected with the water inlet end of a ball float valve through the inner casing pipe and the outer casing pipe. The domestic water heater water-saving device is characterized in that the ball float valve, an upper floating ball and a lower floating ball are arranged in the water storage tank; the upper floating ball sleeves the surface of the ball float valve; a sealing casing pipe is arranged on the lower floating ball and sleeves the lower end part of the outer casing pipe; after the stored water is pumped out, the sealing casing pipe falls to close the water suction hole of the self-suction tee; a water storage hole is formed in the side surface of the ball float valve; the stored water enters in the water storage tank through the water storage hole; when water storage tank is fully filled with water, the upper floating ball floats upwards to close the water storage hole and the sliding valve element opens the water outlet under the action of water pressure; a compensation water channel is formed between the water inlet and the water outlet of the self-suction tee. By adopting the technical scheme, the water in the water storage tank is uniformly pumped to supply to the sprayer by the self-suction tee in the water-out process through the action of the upper floating ball, the lower floating ball and the compensation water channel.

Description

technical field [0001] The invention relates to a water heater, in particular to a water-saving device for a household water heater. [0002] technical background [0003] At present, there is a certain distance between the water outlet and the nozzle of the water heater in use, especially for domestic gas water heaters, the pipes used are often longer for safety reasons, so it is necessary to drain the cold water in the pipes during use. Wait until the hot water can be used, which causes a lot of waste of water resources and inconvenience in use. The technical solution in the patent application number ZL201410591843.3 is "a water-saving device for water heaters". The water outlet end of the regulating valve is provided with a water storage barrel and a self-priming tee. The outer sleeve is provided with a water outlet on the side of the upper end of the inner sleeve, the outer sleeve is sleeved on the inner sleeve, the floating ball is sleeved on the outer sleeve, the slidi...

AI Technical Summary

Problems solved by technology

[0003] At present, there is a certain distance between the water outlet and the nozzle of the water heater in use, especially for domestic gas water heaters, the pipes used are often longer for safety reasons, so it is necessary to drain the cold water in the pipes during use. Wait until the hot water can be used, which causes a lot of waste of water resources and inconvenience in use. The technical solution in the patent application number ZL201410591843.3 is "a water-saving device for water heaters". The water outlet end of the regulating valve is provided with a water storage barrel and a self-priming tee. The outer sleeve is provided with a water outlet on the side of the upper end of the inner sleeve, the outer sleeve is sleeved on the inner sleeve, the floating ball is sleeved on the outer sleeve, the sliding valve core and the inner and outer sleeves are combined to form a float valve, and the sliding valve core is set on the Between the inner and outer sleeves, the sliding valve core is slidingly matched with the inner sleeve. The side of the sliding valve core is provided with a water outlet window and a water outlet through hole. The upper end of the sliding valve core is provided with a water outlet baffle. There is a gap between them, and a sliding sleeve is provided on the outer casing, which is connected to the sliding valve core through the chute hole on the outer casing; there is a quick-opening water channel on the self-priming tee, and one end of it is connected to the self-priming The other end of the water channel is connected to the water channel set between the inner and outer casings, and the other end of the water channel is connected to the lower end of the sliding valve core. The quick-opening water channel is controlled by a manual button-type quick-opening valve; The ball is located at the bottom, the water outlet window of the sliding spool is closed, and the water is injected into the water storage bucket through the water suction hole of the self-priming tee. It flows from the water outlet of the inner casing, the water outlet window of the sliding valve core to its water outlet through hole, and then flows out from the water outlet on the outer casing. The window is always open, and the outlet water of the hot and cold water regulating valve draws the water in the water storage barrel evenly and proportionally through the suction hole of the self-priming tee. The water suction hole of the three-way; the automatic water outlet device with the above structure stores water in the water storage barrel through the water suction hole of the self-priming three-way. The ball has a relatively long stroke during the water storage process, and it is easy to get stuck during the lifting process of the floating ball. At the same time, the floating ball valve in the technical solution has high requirements for processing technology, which is not conducive to the promotion of this product technology. In addition In use, since the water is pumped from the self-priming tee suction hole in a certain proportion, there will be a phenomenon that the adjustment effect of cold and hot water is not obvious, so the above-mentioned water heater water-saving device needs further improvement to meet the requirements of the processing technology. In order to meet the water temperature adjustment requirements of the existing hot and cold water regulating valves, the technical scheme is reasonable and practical

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