Auxiliary electric heating tube of solar water heater

Abstract

The utility model belongs to the technical field of electric heating tubes, and particularly relates to an auxiliary electric heating tube of a solar water heater, which comprises a heater, a U-shaped heating tube is mounted at the bottom of the heater, a lantern ring is movably connected to the outer wall of the U-shaped heating tube, and a bearing plate is fixedly connected to the outer wall of the lantern ring. A floating ball is fixedly connected to the outer wall of the bearing plate, and an infrared sensor is installed at the bottom of the heater. According to the auxiliary electric heating pipe of the solar water heater, cold water is injected into the water heater, the floating ball can be supported by buoyancy of water, the lantern ring fixedly connected with the outer wall of the bearing plate is driven to slide and rise along the U-shaped heating pipe, and the sliding and rising distance of the floating ball is recognized through the infrared sensor; and when the position of the water surface reaches the heatable range, the heater is controlled to be started, the U-shaped heating pipe is made to heat cold water, the effect that dry burning prevention protection is conveniently conducted on the water heater is achieved, and therefore the service life of the electric heating pipe is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric heating tubes, in particular to an auxiliary electric heating tube for a solar water heater. Background Art

[0002] A solar water heater is a device that converts sunlight energy into thermal energy, heating water from low temperature to high temperature to meet people's hot water needs in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structural form. Vacuum tube solar water heaters are the main ones. On rainy days, electric heating tubes are used to assist in heating the water.

[0003] After searching, an electric heating tube that is easy to fix during installation is found with announcement number CN213638247U, including a first heating tube and a second heating tube, the first heating tube is located on the left side of the second heating tube, and a C-shaped tube is integrally processed between the bottom end of the first heating tube and the bottom end of the second heating tube, the top end of the first heating tube is bolted with a first connecting block, and the top end of the second heating tube is bolted with a second connecting block; the first heating tube and the second heating tube of the utility model are respectively clamped with the first connecting sleeve and the second connecting sleeve, and the clamping rod can be directly removed when needed, so that the first heating tube and the second heating tube can be removed, which is convenient for daily maintenance; the scraper ring and the descaling sleeve are arranged on the surface of the first heating tube and the second heating tube, and the scraper ring and the descaling sleeve can be directly slid when needed, and the scale on the surface of the first heating tube and the second heating tube can be scraped off during the sliding process, which is convenient for daily maintenance of the heating tubes.

[0004] In the current existing technology:

[0005] The current auxiliary electric heating tube of the solar water heater is not convenient for preventing the water heater from dry burning when in use, resulting in the electric heating tube continuing to heat up when there is no water in the water heater, affecting the service life. In addition, the sealing between the electric heating tube and the water heater is poor, and it is not convenient to stably install the electric heating tube and the water heater shell.

[0006] Therefore, in order to solve the above problems, an auxiliary electric heating tube of a solar water heater is proposed. Utility Model Content

[0007] In order to make up for the deficiencies of the prior art and solve the above problems, an auxiliary electric heating tube for a solar water heater is proposed.

[0008] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an auxiliary electric heating tube for a solar water heater, comprising a heater, a U-shaped heating tube installed at the bottom of the heater, a sleeve movably connected to the outer wall of the U-shaped heating tube, a receiving plate fixedly connected to the outer wall of the receiving plate, a float fixedly connected to the outer wall of the receiving plate, and an infrared sensor installed at the bottom of the heater.

[0009] Preferably, the collar is of slotted design, and the collar and the U-shaped heating tube form a sliding structure.

[0010] Preferably, the infrared sensor is arranged parallel to the float, and the receiving plate is arranged symmetrically with respect to the central axis of the float.

[0011] Preferably, the bottom of the heater is fixedly connected to a docking block, the bottom of the heater is fixedly connected to a sealing gasket, the bottom of the heater is installed with a water heater fixing plate, the inside of the water heater fixing plate is provided with a docking groove, and the inside of the water heater fixing plate is provided with a sealing groove.

[0012] Preferably, the docking block is connected to the water heater fixing plate via a docking groove, and the sealing gasket is connected to the water heater fixing plate via a sealing groove.

[0013] Preferably, the sealing gasket is arranged in a circular ring shape, and the docking blocks are arranged symmetrically with respect to the central axis of the heater.

[0014] Preferably, a threaded hole is provided inside the water heater fixing plate, a positioning cover plate is installed on the top of the water heater fixing plate, a hexagon socket bolt is movably connected inside the threaded hole, and a through hole is provided inside the positioning cover plate.

[0015] Preferably, the hexagon socket bolt is threadedly connected to the water heater fixing plate through a threaded hole, and the positioning cover is snap-connected to the heater.

[0016] Preferably, the through holes are arranged in a ring shape with the central axis of the positioning cover plate as the center, and the positioning cover plate is movably connected to the hexagon socket bolts.

[0017] Beneficial effects of the utility model:

[0018] The utility model provides an auxiliary electric heating tube for a solar water heater. When cold water is injected into the water heater, the buoyancy of the water will lift the float, driving the sleeve fixedly connected to the outer wall of the receiving plate to slide and rise along the U-shaped heating tube. The rising distance of the float is identified by an infrared sensor. When the water surface position reaches the heating range, the heater is controlled to start, so that the U-shaped heating tube heats the cold water, which facilitates the anti-dry-burn protection of the water heater, thereby improving the service life of the electric heating tube.

[0019] The utility model provides an auxiliary electric heating tube for a solar water heater. By arranging a movable heater, the U-shaped heating tube is passed through a fixed plate of the water heater, and a docking block is driven to engage and insert into a docking groove for docking, so that a sealing gasket is inserted into the sealing groove, thereby facilitating the improvement of the assembly sealing between the fixed plate of the water heater and the heater.

[0020] The utility model provides an auxiliary electric heating tube for a solar water heater. A movable positioning cover is provided so that the positioning cover is clamped and covered on the outer wall of the heater. A hexagon socket bolt is passed through a through hole and rotated. Since the hexagon socket bolt is threadedly connected to a fixing plate of the water heater, the hexagon socket bolt can be inserted into the threaded hole for limiting the position, thereby facilitating the stable installation of the electric heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a three-dimensional diagram of the U-shaped heating tube of the utility model;

[0024] Figure 3 This is a three-dimensional diagram of the float of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure splitting of the utility model;

[0026] Figure 5 This is a three-dimensional diagram of the heater of the utility model;

[0027] Legend:

[0028] 1. Heater; 2. U-shaped heating tube; 3. Ring; 4. Socket plate; 5. Float; 6. Infrared sensor; 7. Docking block; 8. Sealing gasket; 9. Water heater fixing plate; 10. Docking groove; 11. Sealing groove; 12. Threaded hole; 13. Positioning cover; 14. Hexagon socket bolt; 15. Through hole. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Specific examples are given below.

[0031] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 5 The utility model provides an auxiliary electric heating tube for a solar water heater, comprising a heater 1, a U-shaped heating tube 2 being installed at the bottom of the heater 1, a collar 3 being movably connected to the outer wall of the U-shaped heating tube 2, a receiving plate 4 being fixedly connected to the outer wall of the collar 3, a float 5 being fixedly connected to the outer wall of the receiving plate 4, an infrared sensor 6 being installed at the bottom of the heater 1, the collar 3 being a slotted design, and the collar 3 and the U-shaped heating tube 2 forming a sliding structure, the infrared sensor 6 being arranged parallel to the float 5, and the receiving plate 4 being symmetrically arranged with the central axis of the float 5.

[0032] During operation, by injecting cold water into the water heater, the buoyancy of the water will lift the float 5, driving the ring 3 fixedly connected to the outer wall of the receiving plate 4 to slide and rise along the U-shaped heating tube 2. The infrared sensor 6 recognizes the sliding and rising distance of the float 5 to control the start of the heater 1, so that the U-shaped heating tube 2 heats the cold water, which facilitates the anti-dry burning protection of the water heater.

[0033] Further, such as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the bottom of the heater 1 is fixedly connected to a docking block 7, the bottom of the heater 1 is fixedly connected to a sealing gasket 8, the bottom of the heater 1 is installed with a water heater fixing plate 9, the inside of the water heater fixing plate 9 is provided with a docking groove 10, the inside of the water heater fixing plate 9 is provided with a sealing groove 11, the docking block 7 is engaged with the water heater fixing plate 9 through the docking groove 10, and the sealing gasket 8 is engaged with the water heater fixing plate 9 through the sealing groove 11, the sealing gasket 8 is arranged in a circular ring shape, and the docking block 7 is symmetrically arranged with the central axis of the heater 1.

[0034] During operation, by moving the heater 1, the U-shaped heating tube 2 passes through the water heater fixing plate 9, and drives the docking block 7 to engage and insert into the docking groove 10 for docking, so that the sealing gasket 8 is inserted into the sealing groove 11, which facilitates the improvement of the assembly sealing between the water heater fixing plate 9 and the heater 1.

[0035] Further, such as Figure 1 and Figure 4As shown, a threaded hole 12 is provided inside the water heater fixing plate 9, and a positioning cover plate 13 is installed on the top of the water heater fixing plate 9. A hexagon socket bolt 14 is movably connected inside the threaded hole 12, and a through hole 15 is provided inside the positioning cover plate 13. The hexagon socket bolt 14 is threadedly connected to the water heater fixing plate 9 through the threaded hole 12, and the positioning cover plate 13 is snap-connected to the heater 1. The through hole 15 is arranged in a ring shape with the central axis of the positioning cover plate 13 as the center, and the positioning cover plate 13 is movably connected to the hexagon socket bolt 14.

[0036] During operation, the positioning cover 13 is moved so that it is locked on the outer wall of the heater 1, and the hexagon socket bolt 14 is passed through the through hole 15 and rotated. Since the hexagon socket bolt 14 is threadedly connected to the water heater fixing plate 9, the hexagon socket bolt 14 can be inserted into the threaded hole 12 for limiting, which facilitates the stable installation of the electric heating tube.

[0037] Working principle:

[0038] First, by injecting cold water into the water heater, the buoyancy of the water will lift the float 5, driving the ring 3 fixed to the outer wall of the receiving plate 4 to slide and rise along the U-shaped heating tube 2. The infrared sensor 6 identifies the sliding and rising distance of the float 5. When the water surface reaches the heating range, the heater 1 is controlled to start, causing the U-shaped heating tube 2 to heat the cold water, thereby facilitating the anti-dry-burn protection of the water heater.

[0039] Secondly, by moving the heater 1, the U-shaped heating tube 2 passes through the water heater fixing plate 9, and drives the docking block 7 to engage and insert into the docking groove 10 for docking, so that the sealing gasket 8 is inserted into the sealing groove 11, which facilitates the assembly sealing between the water heater fixing plate 9 and the heater 1;

[0040] Finally, by moving the positioning cover 13, the positioning cover 13 is locked on the outer wall of the heater 1, and the hexagon socket bolt 14 is passed through the through hole 15 and rotated. Since the hexagon socket bolt 14 is threadedly connected to the water heater fixing plate 9, the hexagon socket bolt 14 can be inserted into the threaded hole 12 for limiting, which facilitates the stable installation of the electric heating tube.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A solar water heater auxiliary electric heating tube, comprising a heater (1), characterized in that: A U-shaped heating tube (2) is installed at the bottom of the heater (1); a collar (3) is movably connected to the outer wall of the U-shaped heating tube (2); a receiving plate (4) is fixedly connected to the outer wall of the collar (3); a floating ball (5) is fixedly connected to the outer wall of the receiving plate (4); and an infrared sensor (6) is installed at the bottom of the heater (1).

2. The auxiliary electric heating tube for solar water heater according to claim 1, characterized in that: The sleeve ring (3) is of slotted design, and the sleeve ring (3) and the U-shaped heating tube (2) form a sliding structure.

3. The auxiliary electric heating tube for solar water heater according to claim 1, characterized in that: The infrared sensor (6) is arranged in parallel with the float (5), and the receiving plate (4) is arranged symmetrically with respect to the central axis of the float (5).

4. The auxiliary electric heating tube for solar water heater according to claim 1, characterized in that: The bottom of the heater (1) is fixedly connected to a docking block (7), the bottom of the heater (1) is fixedly connected to a sealing gasket (8), the bottom of the heater (1) is installed with a water heater fixing plate (9), the interior of the water heater fixing plate (9) is provided with a docking groove (10), and the interior of the water heater fixing plate (9) is provided with a sealing groove (11).

5. The auxiliary electric heating tube for solar water heater according to claim 4, characterized in that: The docking block (7) is connected to the water heater fixing plate (9) by means of a docking groove (10), and the sealing gasket (8) is connected to the water heater fixing plate (9) by means of a sealing groove (11).

6. The auxiliary electric heating tube for solar water heater according to claim 4, characterized in that: The sealing gasket (8) is arranged in a circular ring shape, and the docking block (7) is arranged symmetrically with respect to the central axis of the heater (1).

7. The auxiliary electric heating tube for solar water heater according to claim 4, characterized in that: A threaded hole (12) is provided inside the water heater fixing plate (9), a positioning cover plate (13) is installed on the top of the water heater fixing plate (9), a hexagon socket bolt (14) is movably connected inside the threaded hole (12), and a through hole (15) is provided inside the positioning cover plate (13).

8. The auxiliary electric heating tube for solar water heater according to claim 7, characterized in that: The hexagon socket bolt (14) is threadedly connected to the water heater fixing plate (9) through the threaded hole (12), and the positioning cover plate (13) is snap-connected to the heater (1).

9. The auxiliary electric heating tube for solar water heater according to claim 7, characterized in that: The through holes (15) are arranged in a ring shape with the central axis of the positioning cover plate (13) as the center, and the positioning cover plate (13) is movably connected to the hexagon socket bolt (14).

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