CN209857398U - Solar water heater - Google Patents

Abstract

The utility model provides a solar water heater, including many parallel arrangement's thermal-collecting tube, the outer fringe at thermal-collecting tube both ends is along radially inside lateral bending, forms the throat structure at thermal-collecting tube both ends, and the head apron is installed to the inboard of throat structure, encircles the clearance between head apron and the thermal-collecting tube and installs sealed the pad, still is provided with the sealed annular groove that slides to the thermal-collecting tube of restriction pad on the thermal-collecting tube. The utility model discloses an adopt the roll extrusion throat, install the head apron at the thermal-collecting tube both ends with mechanical type, replaced traditional welding process, production process is simple, can satisfy daily maintenance demand, and the dismouting is swift, and is nimble reliable. On the premise of not influencing the heat collecting and storing effects of the solar water heater, the whole group of water heater has good and reliable sealing effect, the heat collecting pipes can be quickly assembled and disassembled through the U-shaped elbows, any heat collecting pipe can be conveniently replaced, and the service life of the whole water heater is prolonged.

Description

Solar water heater

Technical Field

The utility model relates to a solar energy utilizes the field, especially relates to a solar water heater.

Background

At present, a solar water heater generally adopts a mode of combining a heat collector and a flow channel, absorbs solar energy through the heat collector and converts the solar energy into heat energy, then heats water in the flow channel, heat loss is generated in the process of heating the water in the flow channel by the heat energy, the heating speed is low, the whole water storage capacity is small, and the use experience of a user is seriously influenced.

In order to improve the heat storage efficiency and increase the water storage capacity, a heat collection tube water heater with heat collection and storage functions is provided, which is generally formed by welding a plurality of heat collection tubes, wherein each heat collection tube is formed by welding large-caliber glass or metal tubes and end sockets at two ends or integrally pouring. Therefore, after a certain heat collecting pipe goes wrong, the whole heat collecting and storing integrated machine needs to be replaced. Moreover, the metal heat collecting pipe is in a high-temperature and high-humidity working environment for a long time, so the welding quality in the production process seriously influences the service life of the solar water heater, and the requirements on construction and welding site protection are too high.

Disclosure of Invention

Problem to prior art existence, the utility model aims to provide a solar water heater, this water heater thermal-collecting tube both ends adopt the sealed form of roll extrusion throat, simple structure, and it is convenient to maintain, and the thermal-collecting tube of whole group water heater can quick assembly disassembly, and nimble group is right.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

a solar water heater comprises a plurality of heat collecting pipes which are arranged in parallel, the outer edges of the two ends of each heat collecting pipe are bent inwards along the radial direction to form necking structures at the two ends of each heat collecting pipe, a sealing head cover plate is installed on the inner side of each necking structure, a sealing gasket is installed around a gap between each sealing head cover plate and each heat collecting pipe, and an annular groove for limiting the sealing gasket to slide towards the heat collecting pipes is further arranged on each heat collecting pipe.

Furthermore, the middle part of the end cover plate is provided with a pipe orifice which comprises a pipe orifice short joint exposed outside the end cover plate and a bent pipe arranged inside the heat collecting pipe.

Further, the pipe orifice short section and the bent pipe are integrally formed.

Further, a pipe orifice sealing ring is arranged around the pipe orifice short section.

Furthermore, the elbow is L-shaped, and the outlet of the elbow extends along the radial direction of the heat collecting pipe.

Furthermore, the adjacent heat collecting pipes are connected into an integral structure through U-shaped elbows.

Furthermore, the material of sealed pad is silica gel.

Furthermore, the heat collecting pipe is a thin-wall stainless steel pipe.

The utility model discloses an adopt the roll extrusion throat, install the head apron at the thermal-collecting tube both ends with mechanical type, replaced traditional welding process, production process is simple, can satisfy daily maintenance demand, and the dismouting is swift, and is nimble reliable.

The utility model discloses under the prerequisite that does not influence solar water heater thermal-arrest heat-retaining effect, whole group water heater is sealed respond well reliably, and the thermal-collecting tube passes through U type elbow can quick assembly disassembly, and the arbitrary thermal-collecting tube of change that can be convenient has prolonged the holistic life of water heater.

The utility model discloses sealed pad of thermal-collecting tube adopts the whole extrusion of silica gel board, sets up between head apron and thermal-collecting tube, has constituted holistic sealed face form, and factor of safety is higher.

Drawings

FIG. 1 is a schematic structural view of the end of the heat collecting tube of the present invention;

FIG. 2 is a schematic assembly diagram of the heat collecting tube and the end cover plate;

fig. 3 is a schematic view of the overall structure of the solar water heater of the present invention.

In the figure, 1-heat collecting pipe, 1-1 annular groove, 2-end sealing cover plate, 3-sealing gasket, 4-pipe orifice, 4-1 pipe orifice short joint, 4-2 bent pipe, 4-3 pipe orifice sealing ring and 5-U-shaped elbow.

Detailed Description

To clearly illustrate the design concept of the present invention, the following description is made with reference to the examples.

As in the example shown in fig. 1, and combine fig. 3, the utility model provides a solar water heater, including six horizontal parallel arrangement's thermal-collecting tube 1, the outer fringe at thermal-collecting tube 1 both ends is along radially inwards crooked, forms the throat structure at thermal-collecting tube 1 both ends, and head apron 2 is installed to the inboard of throat structure, encircles the clearance between head apron 2 and the thermal-collecting tube 1 and installs sealed the pad 3, still is provided with the annular groove 1-1 that the sealed pad 3 of restriction slided to thermal-collecting tube 1 on the thermal-collecting tube 1.

The utility model discloses an adopt the roll extrusion throat to mechanical installation replaces the tradition to weld head and thermal-collecting tube as overall structure's form, through with the head apron with sealed the pad extrusion install at the both ends of thermal-collecting tube, satisfying easy dismounting's prerequisite under, has improved the sealing performance of thermal-collecting tube limitedly, and nimble efficient package assembly has made things convenient for the change of going on damaging the thermal-collecting tube, has prolonged solar water heater's life.

And a pipe orifice 4 of a cold water inlet or a hot water outlet is arranged in the middle of the end cover plate 2, and the pipe orifice 4 specifically comprises a pipe orifice short section 4-1 exposed outside the end cover plate 2 and a bent pipe 4-2 arranged inside the heat collecting pipe 1. In this implementation, mouth of pipe nipple joint and return bend are integrated into one piece's L type overall structure, through straight tube bending machine shaping, in concrete installation, the export of return bend is along the radial extension of thermal-collecting tube, and the mouth of pipe export is perpendicular upwards, and the sufficient state of water in the thermal-collecting tube can effectively be guaranteed to this kind of mode of setting, avoids appearing the cavity in the thermal-collecting tube, makes the water in the thermal-collecting tube keep the biggest area of contact with the pipe wall, has effectively strengthened the thermal efficiency of water heater.

The connecting part of the pipe orifice short section and the end socket cover plate is provided with a pipe orifice sealing ring 4-3 which is arranged in a gap between the pipe orifice short section and the end socket cover plate in a surrounding way and mainly seals a cold water inlet or a hot water outlet to prevent water from leaking through the position of the pipe orifice to cause the rusting of the pipe orifice part and influence the service life of the water heater. In this embodiment, an assembly diagram of the heat collecting tube and the end socket cover plate is shown in fig. 2.

With reference to fig. 3, the six heat collecting pipes 1 in this embodiment are connected to form an integral structure through the U-shaped bend 5, and the connection form through the U-shaped bend 5 enhances the circulation capability of hot water between the different heat collecting pipes 1, and on the other hand, the integral structure of the solar water heater is more stable and firm, and the U-shaped bend 5 is convenient and fast to connect, convenient, and suitable for large-scale assembly production, and can effectively improve the production efficiency of the solar water heater.

It should be pointed out that, the utility model discloses a with the thermal-collecting tube both ends roll extrusion throat of thin wall stainless steel pipe to at the position punching press annular groove of 30-50mm apart from tip roll extrusion throat structure, with the sealed pad extrusion installation at the thermal-collecting tube both ends of head apron and whole silica gel board, welded rigid connection among the prior art has greatly been improved, convert the fixed form into detachable connected form, the dismouting of thermal-collecting tube has been made things convenient for, under the prerequisite that satisfies the sealed requirement of thermal-collecting tube, the production efficiency of water heater has been improved by a wide margin, and the maintenance and the clearance to the inside incrustation scale of thermal-collecting tube in the convenient to use.

Need to explain have, sealed the pad except the form that adopts the silica gel board, still can adopt the rubber packing ring, perhaps the form of O type circle, only need satisfy in the normal service temperature within range of hot water, all can reach the technical purpose of the utility model, of course, except adopting the thin-walled nonrust steel pipe, the material of thermal-collecting tube also does not receive the limitation, according to the utility model discloses a design concept, other carbon steel pipe or alloy steel pipe homoenergetic less such as the wall thickness can satisfy the heat transfer requirement, no longer give unnecessary details.

Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.

Claims (8)

1. A solar water heater is characterized by comprising a plurality of heat collecting pipes which are arranged in parallel, wherein the outer edges at the two ends of each heat collecting pipe are bent inwards along the radial direction to form necking structures at the two ends of each heat collecting pipe, a sealing head cover plate is arranged on the inner side of each necking structure, a sealing gasket is arranged around a gap between each sealing head cover plate and each heat collecting pipe, and an annular groove for limiting the sealing gasket to slide towards the heat collecting pipes is further arranged on each heat collecting pipe.

2. The solar water heater according to claim 1, wherein the head cover plate is provided with a pipe orifice at the middle part, and the pipe orifice comprises a pipe orifice short joint exposed outside the head cover plate and a bent pipe arranged inside the heat collecting pipe.

3. The solar water heater according to claim 2, wherein the pipe nipple and the elbow are integrally formed.

4. A solar water heater according to claim 2 or 3, wherein a pipe orifice sealing ring is provided around the pipe orifice nipple.

5. A solar water heater according to claim 2 or 3, wherein the elbow is L-shaped, and the outlet of the elbow extends in the radial direction of the collector tube.

6. The solar water heater according to claim 1, wherein adjacent heat collecting tubes are connected by U-bends to form an integral structure.

7. The solar water heater according to claim 1, wherein the gasket is made of silicone.

8. The solar water heater according to claim 1, wherein the heat collecting tubes are thin-walled stainless steel tubes.