Cold water backflow recycling system of solar water heater
A technology for solar water heaters and cold water return, applied in solar heating systems, solar collectors, solar collector controllers, etc., can solve the problems of waste of water resources, high economic costs, and low efficiency of cold water recovery, and achieve water conservation The effect of resources, low production cost, and simple structure
Active Publication Date: 2016-09-28
WUHAN UNIV OF TECH
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Problems solved by technology
Take an ordinary family as an example: if the solar water heater is used 5 times a day, and 3 liters of water is wasted each time, then the annual waste of water exceeds 5 cubic meters. From a national perspective, this undoubtedly causes a huge amount of water resources. waste
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[0027] The present invention will be further described below in conjunction with specific examples and accompanying drawings.
[0028] The invention provides a solar water heater cold water backflow reuse system, such as Figure 1 to Figure 3 As shown, it includes an air pressure supplementary device, a gas storage device 2 and a control module; wherein, the air pressure supplementary device is used for the gas storage device when the air pressure of the gas storage device 2 is lower than a preset air pressure threshold under the control of the control module. Air supplementation; the gas output end of the gas storage device 2 is connected to the output end 18 of the water heater outlet, for under the control of the control module, when the water temperature in the water pipe 17 between the outlet of the water heater and the output end of the water heater outlet is lower than the preset When the water temperature threshold is reached, air is released to the water heater output...
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The invention provides a cold water backflow recycling system of a solar water heater. The cold water backflow recycling system comprises a gas pressure supplementing device, a gas storage device and a control module, wherein the gas pressure supplementing device is used for supplementing gas to the gas storage device under the control of the control module when gas pressure of the gas storage device is lower than a preset gas pressure threshold value; and a gas output end of the gas storage device is connected with an output tail end of outlet water of the water heater for discharging gas to the output tail end of the outlet water of the water heater and pressing back water in a water tube between an outlet of the water heater and the output tail end of the outlet water of the water heater into the water heater when a water temperature in the water tube between the outlet of the water heater and the output tail end of the outlet water of the water heater is lower than a preset water temperature threshold value. On the basis of not changing the structure of the original solar water heater, water is pressed back into the water heater by utilizing gas pressure when hot water is not used, so that user experience is greatly improved and waiting time is reduced; and moreover, the purpose of recycling cold water is achieved, so that water resources are saved.
Description
technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a solar water heater cold water backflow reuse system. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, solar water heaters have already entered the homes of ordinary people. In life, when people need to use the hot water in the solar water heater, they must first let off the cold water remaining in the drain pipe. The user not only needs to wait for a period of time like this, also makes the waste of water resources. [0003] As we all know, the era when water was regarded as inexhaustible has passed, and the water crisis has become a serious fact that today's society has to face. Take an ordinary family as an example: if the solar water heater is used 5 times a day, and 3 liters of water is wasted each time, then the annual waste of water exceeds 5 cubic meters. From a national pe...
Claims
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Login to View More IPC IPC(8): F24J2/40F24J2/46F24J2/04
CPCY02E10/44F24S50/40F24S10/00F24S50/00F24S80/00
Inventor 张梦雅张松伟万立成韩改艳王娟蔡再兴
Owner WUHAN UNIV OF TECH