Non-heat-preservation anti-freezing resistance device for solar water heater in winter

Abstract

The utility model relates to the technical field of anti-freezing, and discloses a non-heat-preservation anti-freezing resistance device for a solar water heater in winter, which comprises the solar water heater and a switching valve I which are arranged outdoors, and further comprises a switching valve II and a faucet which are arranged indoors, the first switching valve and the faucet are each provided with an A port, a B port and a C port, and the B port and the C port are not communicated all the time. A second water guide pipe is arranged between the first switching valve and the faucet, and a temperature sensor is arranged on the side wall of the second water guide pipe. A drain pipe I is arranged at a port C of the switching valve I, and a drain pipe III is arranged at a port C of the switching valve II. The device is simple in structure, convenient to install and low in cost; full-intelligent control is achieved, and application is convenient; heating is not needed, and the anti-freezing and anti-blocking effects are good; the device is widely applicable to various types of solar water heaters and can be further popularized to liquid anti-freezing and anti-blocking in more fields.

Description

Technical Field

[0001] The utility model relates to the technical field of antifreeze, in particular to a non-thermal-insulation antifreeze and blockage prevention device for a solar water heater in winter. Background Technique

[0002] The wide application of solar water heaters has brought great convenience to people's lives, but corresponding new problems have also emerged. Among them, the water pipes connecting the outdoor water heater and the indoor terminal appliances are extremely easy to be frozen and blocked in winter. Even with good thermal insulation measures, it is difficult to completely solve this problem. This is the case with my own solar water heater. Once it enters the frost and low-temperature solar terms, even with the best thermal insulation materials, it is still easy to be frozen and blocked, causing great trouble to normal use. Content of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a non-thermal-insulation antifreeze and blockage prevention device for a solar water heater in winter.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A non-thermal-insulation antifreeze and blockage prevention device for a solar water heater in winter includes a solar water heater and a switching valve I arranged outdoors, and also includes a switching valve II and a faucet arranged indoors; both the switching valve I and the switching valve II are provided with three ports A, B, and C, and the B port and the C port are always not connected; a second water conduit is arranged between the switching valve I and the switching valve II, and a temperature sensor is arranged on the side wall of the second water conduit; a first drain pipe is arranged at the C port of the switching valve I, and a third drain pipe is arranged at the C port of the switching valve II; the B port of the switching valve II is connected to the faucet through a third water conduit; the B port of the switching valve I is connected to the solar water heater through a first water conduit; a touch switch is arranged on the faucet.

[0006] As a further scheme of the utility model: both ends of the second water conduit are respectively connected to the A port of the switching valve I and the A port of the switching valve II.

[0007] As a further scheme of the utility model: the temperature sensor is located outdoors.

[0008] As a further scheme of the utility model: it further includes a controller for receiving the signals of the temperature sensor and the touch switch, and controlling the switching conditions of the switching valve I and the switching valve II according to the received signals.

[0009] As a further scheme of the utility model: the touch switch is associated with the hot water valve of the faucet.

[0010] The beneficial effects of the present utility model are as follows: simple structure, convenient installation, low cost; fully intelligent control, convenient to use; no need for heating, good anti-freezing and anti-blocking effects; widely applicable to various types of solar water heaters and can be further promoted to more fields for liquid anti-freezing and anti-blocking. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of a non-thermal-insulated anti-freezing and anti-blocking device for a solar water heater in winter proposed by the present utility model;

[0012] Figure 2 It is a circuit diagram of a non-thermal-insulated anti-freezing and anti-blocking device for a solar water heater in winter proposed by the present utility model.

[0013] In the figure: 1 - solar water heater, 2 - first water guide pipe, 3 - first switching valve, 4 - temperature sensor, 5 - second water guide pipe, 6 - second switching valve, 7 - first drain pipe, 8 - faucet, 9 - third water guide pipe, 10 - second drain pipe. Detailed Embodiment

[0014] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.

[0015] The embodiments of this patent are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0016] Refer to Figure 1-2 , a non-thermal-insulated anti-freezing and anti-blocking device for a solar water heater in winter, includes a solar water heater 1 and a first switching valve 3 arranged outdoors, and also includes a second switching valve 6 and a faucet 8 arranged indoors; both the first switching valve 3 and the second switching valve 6 are provided with three ports A, B, and C, and the B port and the C port are always not connected; a second water guide pipe 5 is arranged between the first switching valve 3 and the second switching valve 6, and a temperature sensor 4 is arranged on the side wall of the second water guide pipe 5; the C port of the first switching valve 3 is provided with a first drain pipe 7, and the C port of the second switching valve 6 is provided with a third drain pipe 10; the B port of the second switching valve 6 is connected to the faucet 8 through a third water guide pipe 9; the B port of the first switching valve 3 is connected to the solar water heater 1 through a first water guide pipe 2; a touch switch is arranged on the faucet 8.

[0017] As a preferred embodiment of the present utility model, both ends of the second water guide pipe 5 are respectively connected to the A port of the first switching valve 3 and the A port of the second switching valve 6.

[0018] As a preferred embodiment of the present utility model, the temperature sensor 4 is located outdoors.

[0019] As a preferred embodiment of the utility model, it also includes a controller for receiving signals from the temperature sensor 4 and the touch switch, and controlling the switching of the switching valve 1 3 and the switching valve 2 6 according to the received signals.

[0020] As a preferred embodiment of the present invention, the touch switch is associated with the hot water valve of the faucet 8 .

[0021] As a preferred embodiment of the present utility model, the switching valve 1 3 and the switching valve 2 6 are both electric switching ball valves.

[0022] The temperature sensor 4 monitors the ambient temperature, and the touch switch monitors the opening and closing of the hot water valve of the faucet 8. When the ambient temperature is low and the touch switch is not in use, it is in the antifreeze state. At this time, the A port and the B port are closed to each other, and the A port and the C port are connected to each other. At this time, the residual water in the water pipe 2 5 is discharged through the drain pipe 1 7 and the drain pipe 3 10, effectively avoiding the situation where the water inside the easy-to-freeze part of the water pipe 2 5 freezes and causes the water pipe 2 5 to be blocked; when the ambient temperature is normal temperature, it is in the non-antifreeze state. At this time, the A port and the B port are connected to each other, and the A port and the C port are closed to each other, that is, only when the temperature is low and not in use, the water in the easy-to-freeze part of the water pipe 2 5 is emptied to prevent freezing and blockage, and it is used normally in other situations. This ensures anti-freeze and blockage without affecting normal use.

[0023] The utility model has the advantages of simple structure, easy installation and low cost; full intelligent control and convenient application; no heating is required and the anti-freezing and blocking effect is good; it is widely applicable to various types of solar water heaters and can be further promoted to more fields of liquid antifreeze and anti-blocking.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-insulation antifreeze device for solar water heaters in winter, characterized in that: It comprises a solar water heater (1) and a switching valve (3) arranged outdoors, and also comprises a switching valve (6) and a faucet (8) arranged indoors; The switching valve 1 (3) and the switching valve 2 (6) are both provided with three ports A, B and C, and the port B and the port C are always blocked; A water conduit 2 (5) is provided between the switching valve 1 (3) and the switching valve 2 (6), and a temperature sensor (4) is provided on the side wall of the water conduit 2 (5); The C port of the switching valve 1 (3) is provided with a drain pipe 1 (7), and the C port of the switching valve 2 (6) is provided with a drain pipe 3 (10); The B port of the switching valve 2 (6) is connected to the faucet (8) via the water pipe 3 (9); the B port of the switching valve 1 (3) is connected to the solar water heater (1) via the water pipe 1 (2); The faucet (8) is provided with a touch switch.

2. A non-insulation antifreeze device for solar water heaters in winter according to claim 1, characterized in that: The two ends of the water guide pipe 2 (5) are respectively connected to the A port of the switching valve 1 (3) and the A port of the switching valve 2 (6).

3. A non-insulation antifreeze device for solar water heaters in winter according to claim 1, characterized in that: The temperature sensor (4) is located outdoors.

4. A non-insulation antifreeze device for solar water heaters in winter according to claim 1, characterized in that: It also includes a controller for receiving signals from the temperature sensor (4) and the touch switch, and controlling the switching of the switching valve 1 (3) and the switching valve 2 (6) according to the received signals.

5. A non-insulation antifreeze device for solar water heaters in winter according to claim 1, characterized in that: The touch switch is associated with the hot water valve of the faucet (8).

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