CN204555381U - A kind of energy and water saving type solar water heater - Google Patents

Abstract

The utility model discloses a kind of energy and water saving type solar water heater, comprise water-storing tank and shower nozzle, in water-storing tank, be provided with heat collector, the connecting pipe between water-storing tank and shower nozzle is also connected with lower water temperature system; Lower water temperature system comprises regulating tank, and the water inlet of hot water of regulating tank connects water-storing tank by connecting pipe, is provided with temperature sensor in connecting pipe; The cold water inlet of regulating tank connects cold water supplying pipe road, and road is provided with magnetic valve to cold water supplying pipe; The delivery port of regulating tank connects shower nozzle by thermostatic valve; Be provided with ancillary heating equipment and hot and cold water mixing device in regulating tank, controller controls the power on/off of auxiliary heater by control circuit, and the signal input part of the signal output part connection control device of temperature sensor, controller is control connection magnetic valve also.The utility model can avoid the waste of invalid hot water in existing solar water heater, has the effect of energy-saving and water-saving.

Description

A water-saving and energy-saving solar water heater

technical field

The utility model relates to a water heater, in particular to a water-saving and energy-saving solar water heater.

Background technique

Solar water heater is a device that converts sunlight energy into heat energy, and heats water from low temperature to high temperature to meet the hot water use in people's daily life and production. Cold water is stored in the hot water pipe connected between the solar water heater and the faucet used by people, which is called "ineffective hot water before use". These "ineffective hot water" are drained in vain when people bathe and wash their hands, wasting a lot of water. Calculated on the basis of a typical Φ12 mm water pipe, the water stored per 1 meter of length is 0.113 kg. If the average length of the solar hot water pipe is 15 meters, about 1.7 kilograms of water will be wasted each time it is used. At the same time, the cold and hot water adjustment of solar water heaters has always been a problem that plagues the application of solar water heaters. The main reason is the pressure difference between the cold and hot water in the mixing valve, the pressure is not balanced, and the pressure of the cold water is too high, the cold water will rush into the hot water Pipeline, when the cold water end is turned off, both sides of the mixing valve are hot water, so it will overheat again. Users often need to adjust the water temperature for a long time, thus wasting a lot of water resources and heat energy. In addition, when there are cloudy, rainy and snowy weather and insufficient sunshine in winter, auxiliary heat sources (electricity, natural gas, etc.) are mainly used to heat hot water, and an average of 25% to 50% of the hot water needs to be completely heated by auxiliary heat sources every year (area The actual energy consumption is greater in areas with more cloudy days), at this time, the waste of water resources also increases the waste of energy.

Utility model content

The purpose of this utility model is to provide a water-saving and energy-saving solar water heater, which can combine solar energy and auxiliary heat sources to ensure that the outlet water temperature meets the user's requirements, avoid waste of ineffective hot water in existing solar water heaters, and have energy-saving and water-saving features. effect.

The utility model adopts the following technical solutions:

A water-saving and energy-saving solar water heater, comprising a water storage tank and a shower nozzle, the water storage tank and the shower nozzle are connected through a connecting pipe, a heat collector is arranged in the water storage tank, and the water storage tank and the shower nozzle The connecting pipe between is also connected with a water temperature regulating system; the water temperature regulating system includes a regulating water tank, the hot water inlet of the regulating water tank is connected to the water storage water tank through the connecting pipe, and the hot water water inlet of the regulating water tank and the water storage tank are connected to each other. A temperature sensor is arranged in the connecting pipe; the cold water inlet of the regulating water tank is connected to the cold water supply pipe, and a solenoid valve is arranged on the cold water supply pipe; the water outlet of the regulating water tank is connected to the shower nozzle through a thermostatic valve; For the heating equipment and the hot and cold water mixing device, the controller controls the power on and off of the auxiliary heater through the control circuit, the signal output terminal of the temperature sensor is connected to the signal input terminal of the controller, and the controller also controls the connection of the solenoid valve.

The auxiliary heating equipment adopts electric heating tubes.

The hot and cold water mixing device adopts multiple sets of staggered baffles, the cross section of the baffles is S-shaped, and multiple sets of electric heating tubes are arranged horizontally in the recessed space of the S-shaped baffles, and the electric heating tubes and the baffles The plates do not touch.

The outside of the regulating water tank is provided with an insulating layer.

The utility model collects the temperature signal of the hot water entering the regulating water tank through a temperature sensor and sends it to the controller. When the collected temperature is lower than the set temperature, the controller controls the auxiliary heater to heat the water in the regulating water tank; When the temperature is higher than the set temperature, the controller controls the solenoid valve to open and inject cold water into the regulating water tank to cool down the water in the regulating water tank. When mixing cold water and hot water, the multiple sets of staggered baffles set in the regulating water tank can change the running direction of the cold water and hot water entering the regulating water tank, play a blocking role for it, and play a role of cold water and hot water. The effect of water mixing well. Adjusting the thermostatic valve provided at the water outlet of the water tank can ensure that the water flowing to the shower head meets the user's requirements. In the utility model, the adjusting water tank installed close to the shower nozzle can fully accommodate the "ineffective hot water volume before use" in the solar hot water pipe, thereby greatly reducing the emptying of water resources whose temperature does not meet the standard, and can adjust the temperature according to the user's temperature. Reduce the temperature of high-temperature water and increase the temperature of low-temperature water, thereby reducing the ineffective loss of heat energy and achieving the effect of energy saving and water saving.

Description of drawings

Fig. 1 is a functional block diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

As shown in Figure 1, the water-saving and energy-saving solar water heater described in the utility model includes a water storage tank 1 and a shower nozzle 2, and the water storage tank 1 and the shower nozzle 2 are connected by a connecting pipe 3. A heat collector 4 is provided, and a water temperature adjustment system is also connected to the connection pipe 3 between the water storage tank 1 and the shower head 2; the water temperature adjustment system includes an adjustment water tank 5, and the hot water in the adjustment water tank 5 The water port is connected to the water storage tank 1 through the connection pipe 3, and the connection pipe 3 between the hot water inlet of the adjustment water tank 5 and the water storage tank 1 is provided with a temperature sensor 6 for collecting the temperature of the hot water entering the adjustment water tank 5; The cold water inlet of the regulating water tank 5 is connected to the cold water supply pipe 7, and the cold water supply pipe 7 is provided with a solenoid valve 8 for controlling the flow of cold water entering the regulating water tank 5; the water outlet of the regulating water tank 5 is connected to the shower nozzle through a thermostatic valve 9 2. The thermostatic valve 9 can solve the problem that the hot and cold water pressure is unbalanced in the bathing process, it is difficult to adjust, and the pressure changes and the temperature changes cause the water to be hot and cold. The thermostatic valve 9 is provided with a high-sensitivity memory alloy component at the water outlet. The temperature-sensitive memory alloy component changes the flow of hot and cold water through elongation and contraction to achieve the function of flowing out water at a set temperature, thereby achieving energy-saving effects. The regulating water tank 5 is provided with an auxiliary heating device 10 and a hot and cold water mixing device 11, the controller controls the power on and off of the auxiliary heating device 10 through a control circuit, and the signal output end of the temperature sensor 6 is connected to the signal input end of the controller , the controller also controls the connecting solenoid valve 8. The auxiliary heating device 10 can adopt an electric heating tube, which has the advantages of small size, high power and good heating effect, and can quickly heat the water in the regulating water tank 5 . The cold and hot water mixing device 11 adopts multiple groups of staggered baffles, which can change the running direction of the cold water and hot water entering the regulating water tank 5, and play a blocking role to it. The effect of hot water mixing well. In this embodiment, the cross-section of the baffle is S-shaped, which further enhances the change of the running direction of the cold water and hot water entering the regulating water tank 5 and enhances their mixing effect. Multiple sets of electric heating tubes are arranged horizontally in the recessed space of the S-shaped baffle, and the electric heating tubes are not in contact with the baffle. Cold water and hot water can be heated around the electric heating tubes to enhance thermal efficiency without affecting the impact of the baffle. Mixed effect of cold and hot water. The outside of the regulating water tank 5 is also provided with a thermal insulation layer, which has a better thermal insulation effect.

When the utility model is in use, the temperature sensor 6 collects the temperature signal of the hot water entering the regulating water tank 5 from the connecting pipe 3 through the hot water inlet and sends it to the controller. When the collected temperature is lower than the set temperature, the controller controls The auxiliary heating device 10 heats the water in the regulating water tank 5; when the collected temperature is higher than the set temperature, the controller controls the solenoid valve 8 to open and inject cold water into the regulating water tank 5 to cool down the water in the regulating water tank 5. When mixing cold water and hot water, the multiple sets of staggered baffles arranged in the adjusting water tank 5 can change the running direction of the cold water and hot water entering the adjusting water tank 5, play a blocking role on it, and play a role in cold water flow. Mix well with hot water. Adjusting the thermostatic valve 9 provided at the water outlet of the water tank 5 can ensure that the water flowing to the shower head 2 meets the user's requirements. In the utility model, the regulating water tank 5 arranged close to the shower nozzle 2 can fully accommodate the "ineffective hot water volume before use" in the solar hot water pipe, thus greatly reducing the emptying of water resources whose temperature does not meet the standard, and at the same time can be adjusted according to the user's needs. Requirements for temperature Reduce the temperature of high-temperature water and increase the temperature of low-temperature water, thereby reducing the ineffective loss of heat energy and achieving the effect of saving energy and water.

Claims (4)

1. an energy and water saving type solar water heater, comprise water-storing tank and shower nozzle, connected by connecting pipe between water-storing tank and shower nozzle, be provided with heat collector in water-storing tank, it is characterized in that: the connecting pipe between described water-storing tank and shower nozzle is also connected with lower water temperature system; Described lower water temperature system comprises regulating tank, and the water inlet of hot water of regulating tank connects water-storing tank by connecting pipe, is provided with temperature sensor in the connecting pipe between the water inlet of hot water of regulating tank and water-storing tank; The cold water inlet of regulating tank connects cold water supplying pipe road, and road is provided with magnetic valve to cold water supplying pipe; The delivery port of regulating tank connects shower nozzle by thermostatic valve; Ancillary heating equipment and hot and cold water mixing device is provided with in described regulating tank, controller controls the power on/off of auxiliary heater by control circuit, the signal input part of the signal output part connection control device of temperature sensor, controller is control connection magnetic valve also.

2. energy and water saving type solar water heater according to claim 1, is characterized in that: described ancillary heating equipment adopts electric heating tube.

3. energy and water saving type solar water heater according to claim 2, it is characterized in that: the baffle plate that described hot and cold water mixing device adopts many groups to be crisscross arranged, the cross section of baffle plate is S shape, many groups electric heating tube is horizontally set in the dented space of S shape baffle plate respectively, and electric heating tube does not contact with baffle plate.

4. energy and water saving type solar water heater according to claim 3, is characterized in that: described regulating tank outer setting has heat-insulation layer.