CN204006713U - Double-water-tank solar water heater - Google Patents

Abstract

The utility model relates to the field of water heaters, and discloses a double-tank solar water heater, comprising an outdoor water tank, a cold water inlet and a hot water outlet, the outdoor water tank is connected with a solar heat collector, and a first flow path and a first flow path are connected in parallel between the cold water inlet and the hot water outlet. In the second flow path, an outdoor water tank is arranged on the first flow path, an indoor water tank is arranged on the second flow path, and the indoor water tank is a pressurized water tank; the water outlet of the outdoor water tank is connected with the water inlet of the indoor water tank. The utility model is provided with two water tanks, and the heater is arranged in the indoor water tanks, so that the potential safety hazard is greatly reduced. At the same time, because the volume of the indoor water tank is small, the required heating time is short, which can reduce household electricity consumption. When the indoor water tank is installed, the pipeline between the hot water outlet and the hot water outlet is short, which reduces the amount of cold water in the pipeline, enables users to realize instant hot water when turned on, and improves the user's water comfort.

Description

A double water tank solar water heater

technical field

The utility model relates to the technical field of water heaters, in particular to a solar water heater with double water tanks.

Background technique

Due to its advantages of energy saving and environmental protection, solar water heaters have gradually become an important branch of water heater products, and are loved by more and more people. In order to protect the environment and save non-renewable energy, many provinces and cities have begun to mandate the installation of solar water heaters and their ancillary products, thus greatly accelerating the pace of product development of solar water heaters.

At present, the water tanks of solar water heaters on the market are divided into pressurized water tanks and non-pressurized water tanks. Solar products need to be installed outdoors, and non-pressurized water tanks are equipped with vent holes. The water tank communicates with the outside through the vent holes. The pipeline completes water supply and water intake. The pressurized water tank has no vent hole, and the water tank is connected to the outside world through two pipelines, and the water intake is realized through the top water method.

At present, most solar water heaters adopt the working mode of a water tank, because the length of the pipeline of the water tank varies with the installation position of the product. When the pipeline is long, there is a lot of pre-stored cold water in the pipeline, which will cause a large amount of cold water to flow out every time the water is used, which will affect the use effect. At the same time, in order to meet the user's requirements, the volume of the external water tank is large, and an electric auxiliary heater is installed in the outdoor water tank. When the temperature of the water tank does not reach the bathing temperature, electric heating needs to be started. Therefore, the insulation and waterproof performance of the circuit material is high. Use There are also major security risks in the process.

To sum up, there is an urgent need for a solar water heater to solve the problems of waste of water resources and potential safety hazards in the prior art of solar water heaters.

Utility model content

The purpose of the utility model is to propose a double-tank solar water heater to solve the problems of waste of water resources, low water efficiency and potential safety hazards in the prior art.

For this purpose, the utility model adopts the following technical solutions:

A double-tank solar water heater, comprising an outdoor water tank, a cold water inlet and a hot water outlet, the outdoor water tank is connected with a solar heat collector, a first flow path and a second flow path are connected in parallel between the cold water inlet and the hot water outlet, The outdoor water tank is arranged on the first flow path, the indoor water tank is arranged on the second flow path, and the indoor water tank is a pressurized water tank; and the water outlet of the outdoor water tank is connected with the water inlet of the indoor water tank.

Further, the indoor water tank is provided with a heater and an indoor water tank temperature sensor; the heater and the indoor water tank temperature sensor are respectively connected to the control device.

Further, the outdoor water tank is provided with an outdoor water tank temperature sensor; the outdoor water tank temperature sensor is connected to the control device.

Further, the outdoor water tank is a non-pressurized water tank, and an exhaust port is provided on the non-pressurized water tank, and the water outlet and the water inlet of the non-pressurized water tank are the same water port, which is the water inlet and outlet of the outdoor water tank; A first solenoid valve, a one-way check valve, and a third solenoid valve are sequentially provided between the cold water inlet and the water inlet and outlet of the outdoor water tank, and a valve for connecting The first branch connecting the water inlet and outlet of the outdoor water tank to the water inlet of the indoor water tank; a valve for connecting the water inlet and outlet of the outdoor water tank to the hot water outlet is provided between the one-way check valve and the third solenoid valve The second branch; the second branch is provided with a second solenoid valve; the water flow sequentially passes through the cold water inlet, the first solenoid valve, the one-way check valve, the third solenoid valve, the water inlet and outlet of the outdoor water tank, and the third solenoid The first flow path is formed by the valve, the second solenoid valve, and the hot water outlet; the second flow path.

Further, the first solenoid valve, the second solenoid valve, and the third solenoid valve are respectively connected to the control device.

Further, the outdoor water tank is a pressurized water tank; a fourth solenoid valve and a one-way check valve are sequentially arranged between the cold water inlet and the water inlet of the outdoor water tank; the water inlet of the outdoor water tank is connected to the water inlet of the indoor water tank A third branch connecting the two is provided between them, and a sixth solenoid valve is provided on the third branch; a fourth branch for connecting the two is provided between the water outlet of the outdoor water tank and the hot water outlet, A fifth solenoid valve is provided on the fourth branch; the water flows sequentially through the cold water inlet, the fourth solenoid valve, the one-way check valve, the water inlet of the outdoor water tank, the water outlet of the outdoor water tank, the fifth solenoid valve, and the hot water outlet. The first flow path is formed; the water flows sequentially through the cold water inlet, the fourth solenoid valve, the one-way check valve, the sixth solenoid valve, the water inlet of the indoor water tank, the water outlet of the indoor water tank, and the hot water outlet to form the second flow road.

Further, the fourth solenoid valve, the fifth solenoid valve, and the sixth solenoid valve are respectively connected to the control device.

The beneficial effects of the utility model are:

(1) The utility model is provided with two water tanks, outdoor and indoor, and the heater is arranged in the indoor water tank, and no auxiliary heating device is installed in the outdoor water tank, so that the potential safety hazard is greatly reduced. At the same time, since the volume of the indoor water tank is small, the amount of water to be heated by the heater is small, and the required heating time is short, which can reduce household electricity costs and improve user experience. When the indoor water tank is installed, the pipeline between the hot water outlet and the hot water outlet is short, which reduces the amount of cold water in the pipeline, enables users to realize instant hot water when turned on, and improves the user's water comfort.

(2) The dual-tank solar water heater in the utility model is equipped with a control device and a solenoid valve in the pipeline. The control device controls the opening and closing of the solenoid valve, and can realize different working modes according to the needs of the user, and can satisfy the user's needs. Multiple usage requirements; users can independently choose the working mode of the solar water heater according to the weather conditions, use the water in the outdoor water tank when the weather is good, and use the water in the indoor water tank when the weather is bad or when the outdoor water tank is being repaired, which improves the water consumption. flexibility and water efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the connection structure of the double water tank solar water heater proposed in the first embodiment of the utility model;

Fig. 2 is a schematic diagram of the connection structure of the double-tank solar water heater proposed in the second embodiment of the utility model.

In the picture:

1. The first solenoid valve; 2. One-way check valve; 3. The second solenoid valve; 4. The third solenoid valve; 5. Hot water outlet; 6. Cold water inlet; 7. Indoor water tank outlet; 8. Indoor Water tank inlet; 9. Heater; 10. Indoor water tank temperature sensor; 11. Exhaust port; 12. Outdoor water tank temperature sensor; 13. Outdoor water tank inlet and outlet; 14. Outdoor water tank; 15. Indoor water tank; 16. Control device ;

1', fourth solenoid valve; 2', one-way check valve; 3', fifth solenoid valve; 4', sixth solenoid valve; 5', hot water outlet; 6', cold water inlet; 7', indoor Water outlet of water tank; 8', water inlet of indoor water tank; 9', heater; 10', temperature sensor of indoor water tank; 11', water inlet of outdoor water tank; 12', temperature sensor of outdoor water tank; 13', water outlet of outdoor water tank; 14', outdoor water tank; 15', indoor water tank; 16', control device.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

The utility model proposes a double-tank solar water heater, which includes an outdoor water tank, a cold water inlet and a hot water outlet, the outdoor water tank is connected with a solar heat collector, and a first flow path and a second flow path are connected in parallel between the cold water inlet and the hot water outlet , the first flow path is provided with an outdoor water tank, the second flow path is provided with an indoor water tank, and the indoor water tank is a pressurized water tank; and, the water outlet of the outdoor water tank is connected with the water inlet of the indoor water tank. A heater and an indoor water tank temperature sensor are arranged in the indoor water tank; the heater and the indoor water tank temperature sensor are respectively connected with the control device. An outdoor water tank temperature sensor is arranged in the outdoor water tank; the outdoor water tank temperature sensor is connected with the control device.

The specific connection structure and control method of the double water tank solar water heater in the utility model will be described below through two specific embodiments.

Embodiment one

As shown in Figure 1, it is a kind of double water tank solar water heater proposed by the present embodiment, comprising an outdoor water tank 14 and an indoor water tank 15, the indoor water tank 15 is a pressurized water tank, the outdoor water tank 14 is a non-pressurized water tank, on the non-pressurized water tank An exhaust port 11 is provided, and the water outlet and the water inlet of the non-pressurized water tank are the same water port, which is the water inlet and outlet 13 of the outdoor water tank.

A first solenoid valve 1, a one-way check valve 2, and a third solenoid valve 4 are sequentially arranged between the cold water inlet 6 and the water inlet and outlet 13 of the outdoor water tank, and a valve for The first branch connecting the water inlet and outlet 13 of the outdoor water tank with the water inlet 8 of the indoor water tank; the first branch for connecting the water inlet and outlet 13 of the outdoor water tank to the hot water outlet 5 is provided between the one-way check valve 2 and the third solenoid valve 4 Two branches; the second branch is provided with a second solenoid valve 3 . The water flows sequentially through the cold water inlet 6, the first solenoid valve 1, the one-way check valve 2, the third solenoid valve 4, the water inlet and outlet of the outdoor water tank 13, the third solenoid valve 4, the second solenoid valve 3, and the hot water outlet 5 to form the first First class road.

The water flows sequentially through the cold water inlet 6, the first electromagnetic valve 1, the one-way check valve 2, the water inlet 8 of the indoor water tank, the water outlet 7 of the indoor water tank, and the hot water outlet 5 to form a second flow path.

In this embodiment, the first solenoid valve 1, the second solenoid valve 3, and the third solenoid valve 4 are respectively connected to the control device 16, and the control device 16 controls the first solenoid valve 1, the second solenoid valve 3 and the third solenoid valve The opening and closing of the valve 4 realizes different working modes of the double-tank solar water heater.

As a further embodiment, the indoor water tank 15 is provided with a heater 9 for heating the water in the indoor water tank 15 and an indoor water tank temperature sensor 10 for monitoring the water temperature in the indoor water tank 15 . Wherein, the heater 9 and the indoor water tank temperature sensor 10 are respectively connected with the control device 16, the indoor water tank temperature sensor 10 transmits the detected temperature to the control device 16, and the control device 16 communicates with the preset temperature signal after receiving the detected temperature signal. Compared with the value, when the preset water temperature is not reached, the heater 9 is controlled to continue heating. The outdoor water tank 14 is provided with an outdoor water tank temperature sensor 12 ; the outdoor water tank temperature sensor 12 is connected with a control device 16 .

This embodiment also discloses a control method applied to the double water tank solar water heater in this embodiment, including three working modes: normal mode, outdoor water tank working mode and indoor water tank working mode:

In normal working mode, the water in the outdoor water tank 14 enters the indoor water tank 15, and the water in the indoor water tank 15 is pressed into the hot water outlet 5;

In the outdoor water tank working mode, the hot water in the outdoor water tank 14 directly enters the hot water outlet 5;

In the indoor water tank working mode, the hot water in the indoor water tank 15 directly enters the hot water outlet 5 .

When the solar water heater is in the normal working mode, the control device 16 controls the first solenoid valve 1 and the second solenoid valve 3 to close, and the third solenoid valve 4 to open. In this working state, the water in the outdoor water tank 14 flows out from the water inlet and outlet 13 of the outdoor water tank, enters the indoor water tank 15 through the water inlet 8 of the indoor water tank, and flows out the water in the indoor water tank 15 from the water outlet 7 of the indoor water tank After reaching the hot water outlet 5, it is used by the user. During the above-mentioned work process, the heater 9 in the indoor water tank 15 continues to heat the water. This working state is a normal state, and when the user does not set the control device 16, the control device 16 is in this working state by default.

When the solar water heater is in the working mode of the outdoor water tank, the control device 16 controls the first solenoid valve 1 to close, and the second solenoid valve 3 and the third solenoid valve 4 to open. When the water temperature in the outdoor water tank 14 is higher than 45°, and the water temperature in the indoor water tank 15 is lower than 40°, the outdoor water tank working mode is preferably adopted. In this working mode, the hot water in the outdoor water tank 14 enters the pipeline through the water inlet and outlet 13 of the outdoor water tank, and is directly supplied to users through the hot water outlet 5 . When the outdoor water tank temperature sensor 12 detects that the temperature in the outdoor water tank 14 is higher than 45°, the control device 16 will automatically remind the user to switch the working mode. If the user does not want to use this method, he can ignore the reminder of the control device 16 , choose the working mode independently.

Indoor water tank working mode. In this mode, the control device 16 controls the second solenoid valve 3 and the third solenoid valve 4 to close, and the first solenoid valve 1 to open. When the outdoor water tank 14 is under maintenance or the outdoor sunlight is not sufficient, it is recommended Use this working mode. In this working mode, cold water enters the pipeline from the cold water inlet 6 and enters the indoor water tank 15 from the indoor water tank water inlet 8, and the hot water in the indoor water tank 15 is ejected from the indoor water tank water outlet 7 and enters To the hot water outlet 5, it is supplied to users.

The double-tank solar water heater in the utility model is equipped with a control device and a solenoid valve in the pipeline, and the control device controls the opening and closing of the solenoid valve, so that different working modes can be realized according to the needs of users, and more users can be satisfied. Demand; users can independently choose the working mode of the solar water heater according to the weather conditions, use the water in the outdoor water tank when the weather is good, and use the water in the indoor water tank when the weather is bad or when the outdoor water tank is being repaired, which improves the flexibility of water use and water efficiency.

Embodiment two

As shown in Figure 2, it is a kind of double water tank solar water heater proposed by the present embodiment. The difference between this embodiment and Embodiment 1 is that the outdoor water tank 14' in the present embodiment is a pressurized water tank. Since the use method of the pressurized water tank is different from that of the non-pressurized water tank, the connection structure of the double-tank solar water heater is different from the connection structure in the first embodiment. A fourth electromagnetic valve 1' and a one-way check valve 2' are provided in sequence; a third branch connecting the two is provided between the water inlet 11' of the outdoor water tank and the water inlet 8' of the indoor water tank, and a third branch is provided on the third branch road. There is a sixth solenoid valve 4'. A fourth branch for connecting the two is provided between the outdoor water tank water outlet 13' and the hot water outlet 5', and the fifth solenoid valve 3' is arranged on the fourth branch.

The water flows sequentially through the cold water inlet 6', the fourth solenoid valve 1', the one-way check valve 2', the outdoor water tank water inlet 11', the outdoor water tank water outlet 13', the fifth solenoid valve 3', and the hot water outlet 5' to form first stream.

The water flow sequentially passes through the cold water inlet 6', the fourth solenoid valve 1', the one-way check valve 2', the sixth solenoid valve 4', the indoor water tank water inlet 8', the indoor water tank water outlet 7', and the hot water outlet 5' to form Second stream.

Wherein, the fourth electromagnetic valve 1', the fifth electromagnetic valve 3', and the sixth electromagnetic valve 4' are respectively connected with the control device 16'.

Same as Embodiment 1, a heater 9' and an indoor water tank temperature sensor 10' are provided in the indoor water tank 15'; the heater 9' and the indoor water tank temperature sensor 10' are connected with the control device 16' respectively. Outdoor water tank 14 ' is provided with outdoor water tank temperature sensor 12 ', and outdoor water tank temperature sensor 12 ' is connected with control device 16 '.

The utility model is provided with two water tanks, outdoor and indoor, and the heater is arranged in the indoor water tank, and no auxiliary heating device is installed in the outdoor water tank, so that the safety hazard is greatly reduced. At the same time, since the volume of the indoor water tank is small, the amount of water to be heated by the heater is small, and the required heating time is short, which can reduce household electricity costs and improve user experience. When the indoor water tank is installed, the pipeline between the hot water outlet and the hot water outlet is short, which reduces the amount of cold water in the pipeline, enables users to realize instant hot water when turned on, and improves the user's water comfort.

Same as the first embodiment, the double water tank solar water heater in this embodiment also provides three working modes, which are normal mode, outdoor water tank working mode and indoor water tank working mode.

When the water heater is in the normal mode, the control device 16' controls the fifth solenoid valve 3' and the sixth solenoid valve 4' to close, and the fourth solenoid valve 1' to open. In normal mode, cold water enters the outdoor water tank 14' from the cold water inlet 6', pushes the water in the outdoor water tank 14' out of the outdoor water tank outlet 13', and the pushed out water enters the indoor water tank water inlet 11 In ', the water in the indoor water tank 15' is ejected from the indoor water tank water outlet 7' and then enters the hot water outlet 5' to be supplied to the user. This working state is a normal state, and when the user does not set the control device 16', the control device 16' is in this working state by default.

When the water heater entered into the outdoor water tank working mode, the control device 16' controlled the sixth solenoid valve 4' to close, and the fourth solenoid valve 1' and the fifth solenoid valve 3' were opened. When the water temperature in the outdoor water tank 14 ' is higher than 45 °, and the water temperature in the indoor water tank 15 ' is lower than 40 °, preferably adopt the outdoor water tank working mode. In this working mode, cold water enters the outdoor water tank 14' from the cold water inlet 6', ejects the hot water in the outdoor water tank 14', enters the pipeline through the water outlet 13 of the outdoor water tank, and flows into the hot water outlet 5 ', for the user to use. When the outdoor water tank temperature sensor 12' detects that the temperature in the outdoor water tank 14' is higher than 45°, the control device 16' will automatically remind the user to switch the working mode. If the user does not want to use this method, he can ignore the control device 16' reminder, choose the working mode independently.

When the solar water heater was in the indoor water tank working mode, the control device 16' controlled the fifth solenoid valve 3' to close, and the fourth solenoid valve 1' and the sixth solenoid valve 4' were opened. When the outdoor water tank 14' is being maintained or the outdoor sunlight is not sufficient, it is recommended to use this working mode. In this working mode, cold water enters the pipeline from the cold water inlet 6' and enters the indoor water tank 15' from the indoor water tank water inlet 8', and the hot water in the indoor water tank 15' is discharged from the indoor water tank water outlet 7' Eject out and enter into the hot water outlet 5' for users to use.

The technical principles of the present utility model are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present utility model, and cannot be interpreted as limiting the protection scope of the present utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation modes of the present utility model without creative work, and these modes will all fall within the protection scope of the present utility model.

Claims (7)

1. A kind of double water tank solar water heater comprises outdoor water tank (14 ', 14), cold water inlet (6 ', 6) and hot water outlet (5 ', 5), and described outdoor water tank (14 ', 14) is connected with The solar heat collector is characterized in that a first flow path and a second flow path are connected in parallel between the cold water inlet (6', 6) and the hot water outlet (5', 5), and the first flow path is provided with the The outdoor water tanks (14', 14), the indoor water tanks (15', 15) are arranged on the second flow path, and the indoor water tanks (15', 15) are pressurized water tanks; And, the outdoor water tank water outlet is connected with the indoor water tank water inlet (8 ', 8). 2. The double-tank solar water heater according to claim 1, characterized in that: said indoor water tanks (15', 15) are provided with heaters (9', 9) and indoor water tank temperature sensors (10', 10) ; Described heater (9 ', 9) and indoor water tank temperature sensor (10 ', 10) are connected with control device (16 ', 16) respectively. 3. The double water tank solar water heater according to claim 1, characterized in that: the outdoor water tank (14', 14) is provided with an outdoor water tank temperature sensor (12', 12); Described outdoor water tank temperature sensor (12', 12) is connected with control device (16', 16). 4. The double-tank solar water heater according to claim 3, characterized in that: the outdoor water tank (14) is a non-pressurized water tank, and an exhaust port (11) is provided on the non-pressurized water tank, and the non-pressurized water tank The water outlet and the water inlet of the pressurized water tank are the same water outlet, which is the water inlet and outlet of the outdoor water tank (13); A first solenoid valve (1), a one-way check valve (2), and a third solenoid valve (4) are sequentially arranged between the cold water inlet (6) and the water inlet and outlet of the outdoor water tank (13). A first branch for connecting the water inlet and outlet of the outdoor water tank (13) with the water inlet of the indoor water tank (8) is provided between the check valve (2) and the third solenoid valve (4); A second branch for connecting the water inlet and outlet of the outdoor water tank (13) with the hot water outlet (5) is provided between the one-way check valve (2) and the third electromagnetic valve (4); A second solenoid valve (3) is provided on the second branch; The water flows sequentially through the cold water inlet (6), the first solenoid valve (1), the one-way check valve (2), the third solenoid valve (4), the water inlet and outlet of the outdoor water tank (13), the third solenoid valve (4 ), the second solenoid valve (3), and the hot water outlet (5) form the first flow path; The water flows sequentially through the cold water inlet (6), the first solenoid valve (1), the one-way check valve (2), the water inlet of the indoor water tank (8), the water outlet of the indoor water tank (7), and the hot water outlet (5) The second flow path is formed. 5. The double-tank solar water heater according to claim 4, characterized in that: the first solenoid valve (1), the second solenoid valve (3), and the third solenoid valve (4) are connected with the control device ( 16) Connected. 6. The double water tank solar water heater according to claim 3, characterized in that: said outdoor water tank (14') is a pressurized water tank; A fourth solenoid valve (1') and a one-way check valve (2') are sequentially provided between the cold water inlet (6') and the outdoor water tank water inlet (11'); A third branch connecting the water inlet (11') of the outdoor water tank and the water inlet (8') of the indoor water tank is provided, and a sixth solenoid valve (4') is arranged on the third branch ; A fourth branch for connecting the two is provided between the water outlet (13') of the outdoor water tank and the hot water outlet (5'), and a fifth solenoid valve (3') is provided on the fourth branch; The water flows sequentially through the cold water inlet (6'), the fourth solenoid valve (1'), the one-way check valve (2'), the water inlet of the outdoor water tank (11'), the water outlet of the outdoor water tank (13'), the fourth Five solenoid valves (3') and hot water outlet (5') form the first flow path; The water flows sequentially through the cold water inlet (6'), the fourth solenoid valve (1'), the one-way check valve (2'), the sixth solenoid valve (4'), the indoor water tank water inlet (8'), the indoor The water outlet (7') of the water tank and the hot water outlet (5') form the second flow path. 7. The double-tank solar water heater according to claim 6, characterized in that: the fourth solenoid valve (1'), the fifth solenoid valve (3'), and the sixth solenoid valve (4') are respectively connected with the control device (16') connected.