CN204254893U - The two inner bag water tank of multi-energy complementation with reversal valve - Google Patents

Abstract

The utility model discloses a multi-energy complementary double-liner water tank with a reversing valve. 13) and other components, which are characterized in that: an electric auxiliary heater (9) or a heat exchanger (14) is installed in the water tank auxiliary heating liner (16), and the water inlet port of the reversing valve (12) is connected with the water tank heat storage liner The water outlet (3) is connected, the low temperature water outlet port (18) of the reversing valve (12) is connected with the water inlet (5) of the auxiliary heating liner of the water tank, and the high temperature water outlet port (17) of the reversing valve (12) is connected with the water outlet of the water tank (20) are connected.

Description

Multi-energy complementary double liner water tank with reversing valve

technical field

The utility model relates to a water heater water tank, in particular to a multi-energy complementary double-liner water tank with a reversing valve.

Background technique

In hot water systems that use renewable energy such as solar water heating systems, ground source heat pumps, or air source heat pumps, volumetric water tanks are necessary components. Volumetric water tanks are mainly used to store hot water generated by renewable energy sources. When the temperature of the hot water in the water tank is insufficient, the auxiliary energy such as the electric auxiliary heater in the water tank is used to heat the hot water in the water tank, so that the user can use the hot water whose temperature meets his requirements.

Take the solar hot water system commonly used in buildings as an example: when the hot water in the solar hot water system reaches the set outlet temperature, such as above 45°C, the user can directly use the hot water in the water tank. ; But if the hot water in the water tank does not reach the set outlet temperature (such as lower than 45°C), it is necessary to use auxiliary energy heating to increase the temperature of the hot water in the water tank.

This situation exists in hot water systems that use renewable energy such as air source heat pumps and geothermal heat pumps. Therefore, water tanks become a necessary configuration for renewable energy hot water systems.

At present, the volumetric water tanks used in conjunction with renewable energy hot water systems on the market are generally of a single-liner structure, that is, an inner liner for storing hot water is installed inside the volumetric water tank, and the solar energy and auxiliary water tanks are installed in the inner liner. Energy heaters, such as electric heaters, jointly heat the water in the inner tank. After the electric heater in the water tank is used as auxiliary energy to heat the hot water in the water tank, the solar heat exchange efficiency and heat utilization rate will be reduced, and the consumption of auxiliary energy will be greatly increased.

Utility model content

In order to overcome the deficiencies of the existing solar hot water single liner water tank, improve the utilization rate of hot water produced by renewable energy, and reduce the consumption of auxiliary energy, it is proposed to use two independent water tank liners, reversing valves, and one-way valves. The technical scheme of the renewable energy hot water volumetric double-liner water tank composed of the following main features is: one of the water tanks stores hot water from solar energy and other renewable energy sources, and the other water tank is equipped with electric water tanks. heater or other auxiliary energy heat exchangers, and use self-operated thermostatic three-way reversing valves (ZL201220274480.7) or electric three-way valves, electromagnetic three-way valves and other reversing valves to conduct heat transfer between the inner tanks of the two water tanks. Water switching can realize the priority utilization of heat energy generated by renewable energy such as solar energy, make full use of the waste heat of renewable energy such as solar energy, improve the utilization rate of renewable energy such as solar energy, reduce the use of auxiliary energy such as electric auxiliary heating, and To achieve the purpose of saving a lot of auxiliary energy.

The technical scheme adopted by the utility model is: use independent water tank heat storage liner and water tank auxiliary heat liner double liner water tank to replace the current single liner water tank, and the inner liner of the two independent water tanks is provided by a self-operated constant temperature tee Reversing valves such as reversing valves or electromagnetic three-way valves, one-way valves and pipelines are connected.

When the water in the heat storage liner of the water tank flows through the water inlet of the reversing valve and the water temperature is higher than the set temperature, the low-temperature water outlet of the reversing valve is closed, and the water flows out from the high-temperature water outlet of the reversing valve to be directly supplied to the water point; The water in the heat storage liner of the water tank flows through the water inlet of the thermostatic reversing valve, and when the water temperature is lower than the set temperature of the reversing valve, the high temperature outlet end of the reversing valve is closed, and the water flows into the auxiliary heating inner container of the water tank from the low temperature outlet end of the reversing valve The cold water preheated by renewable energy such as solar energy is heated by auxiliary energy, and the hot water meeting the water temperature requirement flows out from the water outlet of the auxiliary heating liner of the water tank for use at the water point.

The beneficial effect of the utility model is that: through the reversing valve, the water flow direction of the outlet water flow of the heat storage liner of the water tank is changed when the water temperature is different, and the use of auxiliary energy is fully reduced, and the hot water heated by renewable energy such as sunlight or heat pumps can be heated. The purpose of prioritizing and making full use of the waste heat of solar energy or renewable energy: when the water temperature in the heat storage liner of the water tank is higher than the set temperature, the hot water in the heat storage liner of the water tank is preferentially used; when the water temperature in the heat storage liner of the water tank When the temperature is lower than the set temperature, the water flows into the auxiliary heating liner of the water tank through the reversing valve. At this time, the hot water preheated by the solar energy is used as the supplementary water of the auxiliary heating liner of the water tank to heat, which improves the efficiency of the auxiliary heating liner of the water tank. The basic water temperature can achieve the purpose of making full use of the waste heat of the solar energy.

Adopting the multi-energy complementary double-liner water tank described in the utility model can significantly improve the utilization efficiency of renewable energy, and is beneficial to saving a large amount of auxiliary energy such as electric energy.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Figure 1 is a schematic diagram of the structure of a single-liner water tank with a heat exchanger and an electric heater in the water tank.

Fig. 2 is a schematic structural view of a single liner water tank in which the heat exchanger is outside the water tank and the electric heater is inside the water tank.

Fig. 3 is a schematic diagram of the piping port of the reversing valve.

Figure 4 is a schematic diagram of a multi-energy complementary double-liner water tank with a reversing valve connected to the water tank pipeline, a renewable energy heat exchanger in the inner tank of the hot water storage tank + an electric auxiliary heater in the inner tank of the auxiliary hot water tank.

Figure 5 is a schematic diagram of a multi-energy complementary double-liner water tank in which the reversing valve is connected to the water tank pipeline, the renewable energy heat exchanger is outside the inner tank of the hot water storage tank, and the electric auxiliary heater is inside the inner tank of the auxiliary hot water tank.

Figure 6 is a schematic diagram of a multi-energy complementary double-liner water tank in which the reversing valve is connected to the water tank pipeline, and the renewable energy heat exchanger is outside the inner tank of the hot water storage tank + the auxiliary energy heat exchanger is inside the inner tank of the auxiliary hot water tank.

Figure 7 is a schematic diagram of a multi-energy complementary double-liner water tank in which the reversing valve is connected to the water tank pipeline, and the renewable energy heat exchanger is in the inner tank of the hot water storage tank + the auxiliary energy heat exchanger is in the inner tank of the auxiliary hot water tank.

In the drawings: 1 is the outer wall of the water tank; 2 is the partition of the water tank; 3 is the water outlet of the heat storage liner of the water tank; 4 is the water inlet of the heat storage liner of the water tank; 5 is the water inlet of the auxiliary heat storage liner of the water tank; 6 is the auxiliary heat of the water tank Hot water outlet of inner tank; 7 is the outlet of renewable energy heat exchange medium; 8 is the inlet of renewable energy heat exchange medium; 9 is the electric auxiliary heater; 10 is the outlet of auxiliary energy heat exchange medium; 11 is the inlet of auxiliary energy heat exchange medium 12 is a reversing valve; 13 is a one-way valve; 14 is a heat exchanger; 15 is a water tank heat storage inner tank; 16 is a water tank auxiliary heat inner tank; 17 is a high temperature water outlet of a reversing valve; 18 is a low temperature reversing valve Water outlet; 19 is the water inlet port of the reversing valve; 20 is the water outlet of the water tank.

Detailed ways

The multi-energy complementary double-liner water tank with a reversing valve described in the utility model can be realized in various ways. The technical solution of the utility model is further described below in conjunction with the drawings and embodiments of the specification:

Fig. 1 is a schematic diagram of the structure of a common single liner water tank in the market at present. In the single-liner water tank, the heat exchanger 14 and the electric heater 9 using renewable energy such as solar energy are installed in the same water tank liner. If the water temperature in the water tank liner does not meet the requirements for use, an electric heater can be used. 9 Use after heating the water in the inner tank.

Fig. 2 is a schematic diagram of the structure of a single-liner water tank in which the renewable energy heat exchanger is installed outside the water tank and the electric heater is installed in the inner liner of the water tank. The single inner tank water tank can install the renewable energy heat exchanger 14 outside the water tank, and only install the electric heater 9 in the inner tank. The single inner tank water tank of this form is also relatively common.

Fig. 3 is a schematic diagram of the ports of the reversing valve pipeline. On the valve body of the reversing valve 12, there are high temperature water outlet 17, low temperature water outlet 18, and reversing valve water inlet port 19 respectively.

Embodiment 1: Figure 4 is an embodiment of a multi-energy complementary double-liner water tank in which the reversing valve is connected to the pipeline of the water tank, and the renewable energy heat exchanger is in the heat storage liner of the water tank + the electric auxiliary heater in the auxiliary heat liner of the water tank Schematic diagram: The water tank is composed of two independent inner tanks: the water tank heat storage liner 15 and the water tank auxiliary heat liner 16; the built-in heat exchanger 14 of renewable energy is installed in the water tank heat storage liner 15, 16 is equipped with an electric auxiliary heater 9, and the hot water in the heat storage liner 15 of the water tank is connected with the reversing valve 12 through the water outlet 3; tap water enters the heat storage liner 15 of the water tank through the water inlet 4; The water preheated by renewable energy enters the water tank auxiliary heating liner 16 through the water tank auxiliary heating liner water inlet 5; the hot water in the water tank auxiliary heating liner 16 enters the water tank water outlet 20 through the hot water outlet 6; An electric auxiliary heater 9 is installed in the auxiliary heating liner 16; a check valve 13 is installed on the pipeline between the water tank water outlet 20 and the water tank auxiliary heating inner liner water outlet 6 to prevent water from flowing into the water tank auxiliary water tank from the water tank water outlet 20. Hot liner.

When the water in the heat storage liner 15 of the water tank flows through the water inlet of the reversing valve 12 and the water temperature is higher than the set temperature, the low-temperature water outlet 18 of the reversing valve 12 is closed, and the water flows out from the high-temperature water outlet 17 of the reversing valve 12 to the water tank The water outlet 20 is directly supplied to the water point for use; when the water in the heat storage liner 15 of the water tank flows through the water inlet 19 of the reversing valve 12 and the water temperature is lower than the set temperature, the high temperature water outlet 17 of the reversing valve is closed, and the water flow from the reversing valve Valve 12 low-temperature water outlet 18 flows into water tank auxiliary heating inner tank 16, hot water flows out from water tank auxiliary heating inner tank water outlet 6, to water tank water outlet 20 through one-way valve 13, for water point use.

The reversing valve can be a self-operated thermostatic three-way reversing valve (ZL201220274480.7), an electromagnetic or electric three-way valve used in conjunction with temperature sensing control.

Embodiment 2: Figure 5 is an embodiment of a multi-energy complementary double-liner water tank in which the reversing valve is connected to the pipeline of the water tank, and the renewable energy heat exchanger is outside the heat storage liner of the water tank + the electric auxiliary heater in the auxiliary heat liner of the water tank schematic diagram. The difference from Embodiment 1 is that the heat exchanger 14 is changed to an external heat exchanger 14 installed on the outer wall 1 of the water tank, and other settings are the same as in Embodiment 2.

Embodiment 3: Figure 6 shows the implementation of a multi-energy complementary double-liner water tank in which the reversing valve is connected to the pipeline of the water tank, and the renewable energy heat exchanger is outside the heat storage liner of the water tank + the auxiliary energy heat exchanger is in the auxiliary heat liner of the water tank Example diagram. The difference between this embodiment and Embodiment 1 or Embodiment 2 is that a heat exchanger using auxiliary energy to heat the inner tank water is installed in the water tank auxiliary heating inner tank 16, and the auxiliary energy heat exchange medium passes through heat exchange to complete the auxiliary heating of the water tank. Heating of water in the inner tank.

Embodiment 4: Figure 7 shows the implementation of a multi-energy complementary double-liner water tank in which the reversing valve is connected to the pipeline of the water tank, and the renewable energy heat exchanger is in the heat storage liner of the water tank + the auxiliary energy heat exchanger in the auxiliary heat liner of the water tank Example diagram. The difference from the fourth embodiment is that a heat exchanger 14 is installed in the heat storage liner 15 of the water tank.

In Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4, a reversing valve 12 is used to switch between the water tank heat storage liner 15 and the water tank auxiliary heat storage liner according to the water temperature in the water tank heat storage liner. 16 water flow, the purpose of making full use of the thermal energy produced by renewable energy.

Users can select the heat exchangers in related embodiments for connection and use according to the renewable energy equipment used.

Claims (4)

1. A multi-energy complementary double-liner water tank with a reversing valve, consisting of a water tank heat storage liner (15), a water tank auxiliary heat liner (16), a reversing valve (12), a one-way valve (13), etc. Composition, characterized in that: the water tank is composed of a relatively independent hot water storage tank liner (15), an auxiliary hot water tank liner (16), and an electric auxiliary heater (9) is installed in the auxiliary hot water tank liner (16). ) or a heat exchanger (14), a reversing valve (12) is connected to the water outlet (3) of the heat storage liner of the water tank, between the water outlet (20) of the water tank and the water outlet (6) of the auxiliary heat storage liner of the water tank A one-way valve (13) is installed on the pipeline to prevent water from flowing into the auxiliary heating liner of the water tank from the water tank water outlet (20). 2. The multi-energy complementary double-liner water tank system with reversing valve according to claim 1, characterized in that: a heat exchanger (14) is installed in the heat storage liner (15) of the water tank, and the heat exchanger (14 ) or installed on the outside of the heat storage liner (15) of the water tank. 3. The multi-energy complementary double-liner water tank system with reversing valve according to claim 1, characterized in that: an electric auxiliary heater (9) or a heat exchange tank is installed in the inner tank (16) of the auxiliary hot water tank device (14). 4. The multi-energy complementary double-liner water tank with reversing valve according to claim 1, characterized in that: the reversing valve (12) low-temperature water outlet port (18) is connected to the water tank auxiliary heating liner water inlet (5) Connect, the reversing valve (12) high temperature water outlet port (17) is connected with the water tank water outlet (20).