Vacuum tube solar energy and water storage type electric water heater series connection combined hot water system

Abstract

The utility model discloses a vacuum tube solar energy and water storage type electric water heater series combination hot water system which comprises an electric water heater, a hot water outlet of the electric water heater is communicated with a second water outlet pipe, the other end of the second water outlet pipe is used for being communicated with kitchen and bath water appliances, and a cold water inlet of the electric water heater is communicated with a second water inlet pipe. Through the arrangement of the electric water heater and the heat exchange assembly, the solar water heater and the water storage type electric water heater can be matched with each other and complement each other, photoelectric dual-purpose complementation is achieved, it is ensured that water outlet pressure bearing and water pressure are stable, and the use effect is good; meanwhile, water in the water supply pipe can be exchanged with heat provided by the solar water heater in the heat exchanger, so that the water is preheated before entering the electric water heater, the heating burden of the electric water heater is reduced, and the consumption of electric energy is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of household hot water system technology, specifically a hot water system that combines a vacuum tube solar water heater with a storage-type electric water heater in series. Background Technology

[0002] Currently, vacuum tube solar water heaters are greatly affected by weather conditions, so most households will also install an electric water heater. Vacuum tube solar water heaters and storage electric water heaters are mostly connected in parallel.

[0003] However, vacuum tube solar water heaters and storage-type electric water heaters, which are connected in parallel, cannot be used at the same time. They must be selected for use by switching on and off the valves. At the same time, both vacuum tube solar water heaters and storage-type electric water heaters have their own disadvantages. For example, the disadvantage of vacuum tube solar water heaters is that they cannot produce water under pressure, and their performance is not good and is greatly affected by the weather. The disadvantage of storage-type electric water heaters is that they have higher energy consumption. Utility Model Content

[0004] The purpose of this invention is to provide a hot water system that combines a vacuum tube solar water heater with a storage electric water heater in series, in order to solve the problems mentioned in the background art, such as the inability of vacuum tube solar water heaters to deliver water under pressure and poor performance due to weather conditions, and the high energy consumption of storage electric water heaters.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hot water system combining a vacuum tube solar water heater and a storage-type electric water heater in series includes an electric water heater. The hot water outlet of the electric water heater is connected to a second outlet pipe, the other end of which is used to connect to kitchen and bathroom water appliances. The cold water inlet of the electric water heater is connected to a second inlet pipe, the other end of which is connected to a water supply pipe through a heat exchange component.

[0007] As a preferred technical solution, the heat exchange assembly includes a heat exchanger, the surface of which is provided with a second water inlet and a second water outlet, the output end of the water supply pipe is connected to the second water inlet, the input end of the second water inlet pipe is connected to the second water outlet, and the heating end of the heat exchanger is connected to a heating assembly.

[0008] As a preferred technical solution, the heating component includes a first water inlet and a first water outlet disposed on the surface of a heat exchanger. The first water outlet is connected to a return water pipe, and the other end of the return water pipe is connected to a solar water heater. The hot water end of the solar water heater is connected to a first water outlet pipe, and the other end of the first water outlet pipe is connected to the first water inlet.

[0009] As a preferred technical solution, a circulating water pump is connected to the middle of the first water outlet pipe.

[0010] As a preferred technical solution, a water flow sensor for detecting the water flow in the pipe is connected in the middle of the water supply pipe. The signal output terminal of the water flow sensor is electrically connected to the signal input terminal of the controller through a wire. The control output terminal of the controller is electrically connected to the electrical control terminal of the circulating water pump.

[0011] As a preferred technical solution, the exhaust end of the solar water heater is connected to an exhaust pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the setting of an electric water heater and a heat exchange component, allows the solar water heater and the storage-type electric water heater to cooperate with each other, complementing each other's strengths and weaknesses, achieving complementary photovoltaic power generation, ensuring pressurized water outlet, stable water pressure, and good performance. At the same time, the water in the supply pipe can exchange heat with the solar water heater in the heat exchanger, so that the water is preheated before entering the electric water heater, reducing the heating burden of the electric water heater and thus greatly reducing the consumption of electricity.

[0014] 2. This utility model, through the setting of a water flow sensor and a water pump, enables the water flow sensor to detect the water flow in the water supply pipe in real time. When there is water flow, it promptly transmits a signal to the circulating water pump, causing the circulating water pump to start. It can start the hot water circulation and heat exchange process according to the actual water demand, avoiding unnecessary energy waste. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the hot water system of the present invention, which combines a vacuum tube solar water heater with a storage-type electric water heater in series.

[0016] In the picture:

[0017] 100. Solar water heater; 101. Electric water heater; 102. Heat exchanger;

[0018] 200. First water outlet pipe; 201. Return water pipe; 202. Second water inlet; 203. Second water outlet pipe; 204. Second water inlet pipe; 205. First water inlet; 206. First water outlet; 207. Second water outlet; 208. Vent pipe; 209. Water supply pipe;

[0019] 300. Circulating water pump; 301. Water flow sensor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 This embodiment provides a hot water system combining a vacuum tube solar water heater and a storage-type electric water heater in series. The system includes an electric water heater 101. The hot water outlet of the electric water heater 101 is connected to a second outlet pipe 203. The other end of the second outlet pipe 203 is connected to a kitchen and bathroom water appliance. The cold water inlet of the electric water heater 101 is connected to a second inlet pipe 204. The other end of the second inlet pipe 204 is connected to a supply pipe 209 via a heat exchange assembly. The heat exchange assembly includes a heat exchanger 102. The surface of the heat exchanger 102 is provided with a second inlet 202 and a second outlet 207. The output end of the supply pipe 209 is connected to the second inlet 202, and the input end of the second inlet pipe 204 is connected to the second outlet 207. The heating end of the heat exchanger 102 is connected to a heating assembly. The heating assembly includes a first inlet pipe disposed on the surface of the heat exchanger 102. Water inlet 205 is connected to the first water outlet 206. The first water outlet 206 is connected to a return water pipe 201. The other end of the return water pipe 201 is connected to the solar water heater 100. The hot water end of the solar water heater 100 is connected to the first water outlet pipe 200. The other end of the first water outlet pipe 200 is connected to the first water inlet 205. Through the arrangement of the electric water heater 101 and the heat exchange component, the solar water heater 100 and the storage electric water heater 101 can cooperate with each other and complement each other's strengths and weaknesses, realizing the complementary use of photovoltaic power. This ensures that the water outlet is pressurized, the water pressure is stable, and the use effect is good. At the same time, the water in the water supply pipe 209 can exchange heat with the solar water heater 100 in the heat exchanger 102, so that the water is preheated before entering the electric water heater 101, reducing the heating burden of the electric water heater 101 and thus greatly reducing the consumption of electricity.

[0022] Among them, electric water heater 101 is a storage-type electric water heater 101.

[0023] The heat exchanger 102 is a well-known technical means in the art and will not be described in detail here.

[0024] As a preferred technical solution, a circulating water pump 300 is connected to the middle of the first outlet pipe 200; a water flow sensor 301 for detecting the water flow in the pipe is connected to the middle of the water supply pipe 209. The signal output terminal of the water flow sensor 301 is electrically connected to the signal input terminal of the controller through a wire. The control output terminal of the controller is electrically connected to the control terminal of the circulating water pump 300. Through the configuration of the water flow sensor 301, the controller, and the circulating water pump 300, the water flow sensor 301 can detect the water flow in the water supply pipe 209 in real time. When there is water flow, it promptly transmits the signal to the controller, which controls the circulating water pump 300 to start. The hot water circulation and heat exchange process can be started according to the actual water demand, avoiding unnecessary energy waste.

[0025] The water flow sensor 301 can be one of the following models: SEN-HW21NA, SEN-HW21WB, SEN-HZ21WD, or SEN-HZ41WC. The controller can be a single-chip microcomputer of model STC89C51.

[0026] As a preferred technical solution, the exhaust end of the solar water heater 100 is connected to an exhaust pipe 208. Connecting the exhaust end of the solar water heater 100 to the exhaust pipe 208 can effectively prevent the internal pressure of the solar water heater 100 from being too high.

[0027] Working principle;

[0028] When users use kitchen and bathroom appliances, the second outlet pipe 203 of the electric water heater 101 supplies hot water to the kitchen and bathroom appliances, while tap water is supplied to the electric water heater 101 through the water supply pipe 209 and the heat exchange component.

[0029] When tap water enters the water supply pipe 209, the water flow sensor in the middle of the water supply pipe 209 detects the water flow signal and transmits it to the controller through a wire. The controller then controls the circulating water pump 300 to start working. The circulating water pump 300 pumps the hot water in the solar water heater 100 through the first outlet pipe 200 to the first inlet 205 of the heat exchanger 102 to exchange heat with the tap water in the heat exchanger 102, thereby increasing the temperature of the tap water. The cooled hot water flows through the first outlet 206 of the heat exchanger 102 into the return pipe 201 and finally flows back into the solar water heater 100. The cooled tap water flows through the second outlet 207 of the heat exchanger 102 into the second inlet pipe and then into the electric water heater 101 through the second inlet pipe 204.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot water system combining a vacuum tube solar water heater and a storage-type electric water heater in series, characterized in that, The device includes an electric water heater (101), the hot water outlet of which is connected to a second water outlet pipe (203), the other end of which is used to connect to kitchen and bathroom water appliances, the cold water inlet of which is connected to a second water inlet pipe (204), and the other end of which is connected to a water supply pipe (209) through a heat exchange component.

2. The hot water system combining a vacuum tube solar water heater and a storage-type electric water heater in series according to claim 1, characterized in that: The heat exchange assembly includes a heat exchanger (102), the surface of which is provided with a second inlet (202) and a second outlet (207). The output end of the water supply pipe (209) is connected to the second inlet (202), the input end of the second inlet pipe (204) is connected to the second outlet (207), and the heating end of the heat exchanger (102) is connected to a heating assembly.

3. A hot water system combining a vacuum tube solar water heater and a storage-type electric water heater in series according to claim 2, characterized in that: The heating component includes a first inlet (205) and a first outlet (206) disposed on the surface of the heat exchanger (102). The first outlet (206) is connected to a return pipe (201). The other end of the return pipe (201) is connected to a solar water heater (100). The hot water end of the solar water heater (100) is connected to a first outlet pipe (200). The other end of the first outlet pipe (200) is connected to the first inlet (205).

4. A hot water system combining a vacuum tube solar water heater and a storage-type electric water heater in series, as described in claim 3, is characterized in that: A circulating water pump (300) is connected to the middle of the first water outlet pipe (200).

5. A hot water system combining a vacuum tube solar water heater and a storage-type electric water heater in series according to claim 4, characterized in that: The middle part of the water supply pipe (209) is connected to a water flow sensor (301) for detecting the water flow in the pipe. The signal output end of the water flow sensor (301) is electrically connected to the signal input end of the controller through a wire. The control output end of the controller is electrically connected to the control end of the circulating water pump (300).

6. A hot water system combining a vacuum tube solar water heater and a storage-type electric water heater in series according to claim 3, characterized in that: The solar water heater (100) has an exhaust pipe (208) connected to its exhaust end.

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