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Solar water heating system with temperature difference control

A technology of solar water heating and solar water heating tank, applied in the field of solar water heating system, can solve the problems of high cost, inability to compete with conventional energy in economy, low efficiency, etc., so as to save electric energy, reduce heat loss and ensure safety Effect

Inactive Publication Date: 2018-07-20
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some solar energy utilization devices are low in efficiency and high in cost. Generally speaking, the economy cannot compete with conventional energy sources.

Method used

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  • Solar water heating system with temperature difference control
  • Solar water heating system with temperature difference control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: as figure 1 As shown, a solar water heating system with temperature difference control and heat preservation is characterized in that it includes a solar heat collection system, a user water delivery system and a user water supply control system;

[0016] The solar heat collection system includes a solar heat collector 1, a solar hot water tank 2, a heat collection circulation pipe 3, a circulation pump 4, a cold water supply pipe 5, a feed pump 6 and a hot water tank sewage outlet 7, and the solar heat collector 1 The solar hot water tank 2 is connected to the solar hot water tank 2 through the heat collection circulation pipe 3. The solar hot water tank 2 is provided with a sewage outlet 7 of the hot water tank and a cold water supply pipe 5. A feed pump 6 is installed on the cold water supply pipe 5, and a cold water supply pipe 5 is installed. Below the solar hot water tank 2, when cleaning the solar hot water tank, the dirt is discharged through the s...

Embodiment 2

[0020] Embodiment 2: The rest of this embodiment is the same as the previous embodiment, wherein the safety valve 18 is a spring micro-opening safety valve of the Italian OR brand 0485 series. When the solenoid valve 11 is closed, the safety valve 18 automatically discharges water to the pipeline. Regulates the water pressure in the pipes.

[0021] Temperature sensor I16 and temperature sensor I17 are selected from the temperature sensor model MFP-5B of Shenzhen Jinsanjing Electronic Technology Co., Ltd. The temperature sensor of this type has a temperature range of -30°C~+105°C; It is mainly used to measure the temperature of the liquid in the tube. The internal resistance of the sensor is 30KΩ in the environment of 25 ℃, and it is made of negative temperature coefficient (NTC) heat-sensitive material.

[0022] Such as figure 2 As shown, the temperature comparator 15 is composed of an ATMGEGA-8A single-chip microcomputer. The pins of the single-chip microcomputer are 25 (PC...

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Abstract

The invention relates to a solar water heating system with temperature difference control, and belongs to the field of solar water heating systems, new energy and automation control. The system comprises a solar heat collection system, a user water input system and a user water supply control system; through a temperature comparator, the temperature difference of a water inlet and a water outlet of an electromagnetic valve is detected, the electromagnetic valve is controlled to be opened and closed, the phenomenon that the when water temperature of a hot water tank is reduced, a user uses water, and the water sources are wasted is avoided, water resources are saved, the phenomenon that when the water temperature of the hot water tank is reduced, the user drains water, the water temperaturein the hot water tank is reduced directly, and the water temperature needs to rise for a long time is avoided, and heat losses are reduced; when solar energy is sufficient, a photovoltaic panel is used for supplying power to the electromagnetic valve and the temperature comparator, solar resources are sufficiently used, electric energy is saved, the power supply voltage is within the human body safety voltage range, and safety is ensured. Compared with a traditional full glass vacuum heat collection pipe, a vacuum pipe heat collection pipe of the solar heat collector cannot be exploded.

Description

technical field [0001] The invention relates to a solar water heating system with temperature difference control, belonging to the fields of solar water heating systems, new energy sources and automatic control. Background technique [0002] At present, my country has become the world's largest solar water heater producer and solar water heater market, and this industry has also become the only renewable energy industry in my country that is at the world's leading level in terms of production capacity and utilization scale. With the increasingly fierce competition in the solar thermal utilization industry, solar energy companies with a long-term development vision have begun to put innovation at the top of the list, whether it is in core technology or appearance, whether it is heat collection technology or heat preservation technology Or high energy efficiency technology, solar energy and building integration technology, have achieved rapid development and progress. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/00F24D3/02F24D3/10F24D19/10F24S50/40
CPCF24D3/005F24D3/02F24D3/1058F24D19/1042Y02B10/70
Inventor 罗小林刘启航
Owner KUNMING UNIV OF SCI & TECH
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