CN218565794U

CN218565794U - Grid structure of flat plate type heat collector and water heater

Info

Publication number: CN218565794U
Application number: CN202221645238.6U
Authority: CN
Inventors: 姜立军; 李春生; 李伟; 巩顺
Original assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Haier Smart Home Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2023-03-03
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a grid structure of a flat plate type heat collector and a water heater, which belong to the technical field of water heaters, the grid structure of the flat plate type heat collector comprises a confluence joint and a calandria, the confluence joint is provided with an inner cavity, the confluence joint is provided with a bulge, the bulge is provided with a mounting hole, the mounting hole is communicated with the inner cavity, and a step surface is formed on the inner wall of the mounting hole; the end of the calandria is inserted into the mounting hole and is abutted against the step surface, and the calandria is fixedly connected with the confluence connector. The water heater comprises the flat plate type heat collector grid structure. The arrangement of the convex part increases the structural strength to prevent the arrangement of the mounting hole from influencing the structural performance; the step plays limiting displacement in the face of the calandria, is convenient for assemble, because the calandria inserts the mounting hole, the calandria has great area of contact with the union joint, improves firm in connection nature.

Description

Grid structure of flat plate type heat collector and water heater

Technical Field

The utility model relates to a water heater technical field especially relates to a plate heat collector grid structure and water heater.

Background

The flat-plate solar water heater is environment-friendly and energy-saving, and is popular with the users. The flat plate type heat collector is an important structure of a flat plate type solar water heater, and heat conduction is carried out through a flow channel which is horizontally or vertically arranged. The grid type of the flat plate type heat collector is various, and the grid type of the flat plate type heat collector is mainly divided into a four-port type and a two-port type according to an outlet mode, the four-port type heat collector is provided with four inlets and outlets, four corners of the grid are respectively provided with one inlet and one outlet, two diagonal ports are generally used during installation, fluid enters from the bottom, and fluid exits from the diagonal ports at the upper part, and the type is generally used for engineering type flat plate type heat collectors; the two-opening grid is convenient to install and operate, and the circulating inlet and outlet of the grid are concentrated at the upper left corner or the upper right corner; this type is generally used for balcony type flat plate collectors.

Referring to fig. 1, a conventional flat plate collector generally includes three headers, a plurality of tube banks 20 ' and a connector 30 ', the three headers are a first header 11 ', a second header 12 ' and a tail tube 13 ', the first header 11 ' and the second header 12 ' have the same structure, one end of each of the first header and the second header is closed, the connector 30 ' is installed at the other end of each of the first header and the second header, and the tube banks 20 ' are arranged in parallel at intervals. The number of the collecting pipes is large, the material consumption is large, and the cost is high.

Generally, the header and the calandria 20' are welded, and the welding is inconvenient because the pipeline is cylindrical and the pipe wall is thin. In the using process, the water temperature can rise, the header can expand after being heated to generate stress, the sealing performance of a welding position is influenced, the welding line is easy to crack, the service life is influenced, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plate heat collector lattice structure and water heater to solve the plate heat collector material quantity that exists among the prior art many, weld insecure technical problem.

As the conception, the utility model adopts the technical proposal that:

a flat plate collector grid structure comprising:

the junction box comprises a junction box body, a junction box body and a junction box body, wherein the junction box body is provided with an inner cavity, a protruding part is arranged on the junction box body, a mounting hole is formed in the protruding part, the mounting hole is communicated with the inner cavity, and a step surface is formed on the inner wall of the mounting hole;

and the end part of the calandria is inserted into the mounting hole and abutted against the step surface, and the calandria is fixedly connected with the confluence joint.

One end of the confluence joint is open, the other end of the confluence joint is closed, and the protruding part is arranged on the side wall of the confluence joint.

The protruding part is provided with a plurality of protruding parts, and each protruding part is provided with one mounting hole.

The number of the protruding parts is one, and the mounting holes are arranged on the protruding parts at intervals. Only set up a bulge, not only increased the structural strength that the joint that converges, the bulge has great effective area moreover, is convenient for process the mounting hole.

Wherein, the outer peripheral surface of the open end of the confluence joint is provided with an external thread.

The junction box comprises a junction box body, a junction box, a plurality of mounting holes, a plurality of junction boxes and a plurality of junction boxes, wherein one end of the junction box body is opened, the protruding portion is arranged at the other end of the junction box body, and the mounting holes are annularly arranged on the protruding portion.

The protruding part is in a round table shape, the small end of the protruding part is connected with the bus joint, and the large end of the protruding part extends in the direction away from the bus joint.

The mounting hole comprises a guide section, a connecting section and a drainage section which are sequentially connected, the diameter of the guide section is not smaller than that of the connecting section, and the junction of the connecting section and the drainage section forms the step surface.

Wherein, the guide section is horn mouth shape. During welding, the solder can enter a gap between the discharge pipe and the guide section, so that the solder has a larger contact area with the discharge pipe and is welded more firmly.

A water heater comprising a flat plate collector grid structure as described above.

The utility model has the advantages that:

the utility model provides a grid structure of a flat plate type heat collector, wherein a bulge is arranged on a confluence joint, a mounting hole is arranged on the bulge, and the arrangement of the bulge increases the structural strength so as to prevent the arrangement of the mounting hole from influencing the structural performance; form the step face on the inner wall of mounting hole, the calandria insert the mounting hole and with step face butt, the step plays limiting displacement in the face of the calandria, is convenient for assemble, calandria and busbar joint fixed connection because the calandria inserts the mounting hole, the calandria has great area of contact with the busbar joint, improves firm in connection.

Drawings

FIG. 1 is a schematic view of a conventional flat plate type heat collector;

fig. 2 is a schematic view of a grid structure of a flat plate type heat collector according to an embodiment of the present invention;

FIG. 3 is an enlarged view at A of FIG. 2;

fig. 4 is a cross-sectional view of a bus bar joint according to an embodiment of the present invention;

fig. 5 is a side view of a bus bar joint according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a bus bar joint according to a second embodiment of the present invention;

fig. 7 is a schematic view of a bus bar joint provided by the second embodiment of the present invention;

fig. 8 is a schematic view of a grid structure of a flat plate type heat collector according to a third embodiment of the present invention;

FIG. 9 is an enlarged view at B of FIG. 8;

fig. 10 is a side view of a grid structure of a flat plate type collector according to a third embodiment of the present invention;

fig. 11 is a cross-sectional view of a bus bar joint according to a third embodiment of the present invention;

fig. 12 is an enlarged view at C of fig. 11.

In the figure:

11', a first header; 12', a second header; 13', tail tube; 20', calandria; 30', a linker;

10. a bus joint; 11. a projection; 12. mounting holes; 120. a step surface; 121. a guide section; 122. a connecting section; 123. a drainage section;

20. arranging pipes; 21. an extension portion; 22. a first bank of tubes; 23. a second bank of tubes; 24. and a third row of tubes.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Example one

Referring to fig. 2 to 5, an embodiment of the present invention provides a grid structure of a flat plate type heat collector, including a bus bar joint 10 and a rack pipe 20, where the bus bar joint 10 has an inner cavity, a protrusion 11 is disposed on the bus bar joint 10, a mounting hole 12 is disposed on the protrusion 11, the mounting hole 12 is communicated with the inner cavity, and a step surface 120 is formed on an inner wall of the mounting hole 12; an end of the discharge pipe 20 is inserted into the mounting hole 12 and abuts against the stepped surface 120, and the discharge pipe 20 is fixedly connected to the bus bar connector 10.

The arrangement of the convex part 11 increases the structural strength to prevent the arrangement of the mounting hole 12 from influencing the structural performance; calandria 20 inserts mounting hole 12 and just supports with step face 120, and step face 120 plays limiting displacement to calandria 20, is convenient for assemble, calandria 20 and union coupling 10 fixed connection, because calandria 20 inserts mounting hole 12, calandria 20 has great area of contact with union coupling 10, improves the fastness of connection.

In the present embodiment, the bank pipe 20 is welded to the bus bar joint 10. Since the exhaust pipe 20 is inserted into the mounting hole 12, the exhaust pipe 20 and the bus bar connector 10 have a large contact area, and the welding firmness is improved.

In this embodiment, the grid structure of the flat plate type collector comprises two confluence joints 10 and a plurality of row pipes 20, and two ends of the row pipes 20 are respectively connected with the two confluence joints 10. Because the calandria 20 is directly connected with the confluence joint 10, a header is omitted, the structure is simplified, materials are saved, and the cost is reduced.

Specifically, the mounting hole 12 includes a guide section 121, a connecting section 122 and a drainage section 123 that are connected in sequence, the guide section 121 plays a role in guiding, the diameter of the guide section 121 is not smaller than the diameter of the connecting section 122, so that the discharge pipe 20 is inserted into the mounting hole 12, a step surface 120 is formed at the junction of the connecting section 122 and the drainage section 123, and the discharge pipe 20 abuts against the step surface 120. The diameter of the drainage section 123 is smaller than that of the connecting section 122, and the drainage section 123 plays a drainage role, so that fluid can flow smoothly.

In the present embodiment, the guiding section 121 is in a bell mouth shape, and during soldering, solder enters into a gap between the discharge pipe 20 and the guiding section 121, so that the solder has a larger contact area with the discharge pipe 20, and the soldering is firmer.

The bus bar connector 10 has a tubular shape. In this embodiment, one end of the bus bar connector 10 is open, the other end is closed, and the protrusion 11 is provided on the side wall of the bus bar connector 10. The side wall of the bus bar connector 10 has a large area, which facilitates the opening of the mounting hole 12. It will be appreciated that the number of mounting holes 12 on each manifold 10 is equal to the number of gauntlets 20.

The outer peripheral surface of the opening end of the confluence joint 10 is provided with an external thread to facilitate connection with other pipelines. The end face of the opening end of the bus bar joint 10 is a plane, and the plane is convenient for sealing.

Wherein, the confluence joint 10 is a copper joint, and the discharge pipe 20 is a copper pipe. Of course, the bus bar joint 10 may be a stainless steel joint, an aluminum joint, or an iron joint, and the rack pipe 20 may be a stainless steel pipe, an aluminum pipe, or an iron pipe.

The closed end of the bus bar joint 10 is sealed by welding. Specifically, a plug is disposed at the closed end, and the plug is welded to the bus bar connector 10. Or, the tip diameter of the collection flow joint 10 reduces gradually and seals through spot welding again, because the tip diameter of collection flow joint 10 reduces gradually, consequently makes thick internal diameter form a aperture at last, and rethread spot welding forms the blind end, and the spot welding is convenient for operate, need not to use the end cap, reduces welding area, improves the welding fastness. Alternatively, the bus bar connector 10 is an integrally molded structure.

In the present embodiment, the protruding portion 11 is provided in plural, and each protruding portion 11 is provided with one mounting hole 12. Each protruding part 11 is independently arranged, so that the positions of the mounting holes 12 can be conveniently arranged according to needs to adapt to various working conditions.

Both ends of the discharge tube 20 are provided with extensions 21, and the extensions 21 are connected to the bus bar connector 10. The arrangement of the extension part 21 enables the opening directions of the two confluence connectors 10 to be convenient for the same direction, one opening of the two confluence connectors 10 is an inlet, the other opening of the two confluence connectors 10 is an outlet, and the inlet and the outlet can be concentrated on the upper left corner or the upper right corner, so that the structure is compact, less space is occupied, and the installation is convenient.

The number of rows of tubes 20 can be set according to actual needs. In the present embodiment, three discharge pipes 20 are provided, and three mounting holes 12 are opened on each bus bar joint 10, and the three mounting holes 12 are arranged at intervals along the axial direction of the bus bar joint 10. Three calandria 20 advance, three calandria 20 play, and the flow area is the sum of the latus rectum of three calandria 20. The cross-section of the gauntlet 20 may be circular, square or other shape.

Specifically, three mounting holes 12 distributed in sequence from the open end to the closed end on one bus bar joint 10 are connected with three mounting holes 12 distributed in sequence from the closed end to the open end on the other bus bar joint 10 in a one-to-one correspondence manner through the exhaust pipes 20.

For convenience of description, the two bus connectors 10 are respectively a first bus connector and a second bus connector, the three mounting holes 12 on the first bus connector are respectively a first mounting hole, a second mounting hole and a third mounting hole, and the first mounting hole, the second mounting hole and the third mounting hole are arranged at intervals along the direction from the opening end to the closed end of the first bus connector; the three mounting holes on the second confluence connector are respectively a fourth mounting hole, a fifth mounting hole and a sixth mounting hole, and the fourth mounting hole, the fifth mounting hole and the sixth mounting hole are arranged at intervals along the direction from the opening end to the closed end of the second confluence connector.

The calandria 20 is U-shaped, and each calandria 20 is connected in parallel. In order to avoid interference of the three rows of tubes 20, each row of tubes 20 is arranged inside the U-shaped configuration of the adjacent row of tubes 20. Adjacent rows of tubes 20 are fixed by spot welding to prevent displacement of the tubes 20.

The three rows of tubes 20 are respectively a first row of tubes 22, a second row of tubes 23 and a third row of tubes 24, the second row of tubes 23 is arranged inside the U-shape of the first row of tubes 22, and the third row of tubes 24 is arranged inside the U-shape of the second row of tubes 23. The two ends of the third calandria 24 are respectively connected with the first mounting hole and the sixth mounting hole, the two ends of the second calandria 23 are respectively connected with the second mounting hole and the fifth mounting hole, and the two ends of the first calandria 22 are respectively connected with the third mounting hole and the fourth mounting hole.

Of course, four exhaust pipes 20 may be provided, and four mounting holes 12 sequentially distributed from the open end to the closed end of one manifold joint 10 are connected with four mounting holes 12 sequentially distributed from the closed end to the open end of another manifold joint 10 in a one-to-one correspondence manner through the exhaust pipes 20.

Example two

Fig. 6 and 7 show a second embodiment, wherein the same or corresponding parts as the first embodiment are provided with the same reference numerals as the first embodiment. In the present embodiment, one projection 11 is provided, and the mounting holes 12 are spaced apart from each other on the projection 11. Only one protruding part 11 is arranged, so that the structural strength of the bus bar joint 10 is increased, and the protruding part 11 has a large effective area and is convenient for machining the mounting hole 12.

The mounting hole 12 comprises a guide section 121, a connecting section 122 and a drainage section 123 which are connected in sequence, wherein the guide section 121 plays a role in guiding, so that the discharge pipe 20 can be conveniently inserted into the mounting hole 12; the diameter of the guide section 121 is not smaller than the diameter of the connection section 122, so that the discharge pipe 20 can be conveniently inserted into the mounting hole 12, a step surface 120 is formed at the junction of the connection section 122 and the drainage section 123, and the discharge pipe 20 is abutted against the step surface 120.

The bus bar connector 10 has a tubular shape. In this embodiment, one end of the bus bar connector 10 is open, the other end is closed, and the protrusion 11 is provided on the side wall of the bus bar connector 10. The side wall of the bus bar connector 10 has a large area, which is convenient for forming the mounting hole 12. It will be appreciated that the number of mounting holes 12 on each manifold 10 is equal to the number of rows of tubes 20.

EXAMPLE III

Fig. 8 to 12 show a third embodiment, wherein the same or corresponding parts as in the first embodiment are provided with the same reference numerals as in the first embodiment. For simplicity, only the differences between the third embodiment and the first embodiment will be described. The difference is that one end of the bus bar joint 10 is open, the protruding part 11 is arranged at the other end of the bus bar joint 10, and the plurality of mounting holes 12 are annularly arranged on the protruding part 11. The arrangement of the protruding portion 11 not only increases the structural strength of the bus bar joint 10, but also the protruding portion 11 has a larger effective area, which is convenient for processing the mounting hole 12.

In the present embodiment, the protruding portion 11 is in the shape of a circular truncated cone, a small end of the protruding portion 11 is connected to the bus bar connector 10, and a large end of the protruding portion 11 extends in a direction away from the bus bar connector 10. The mounting holes 12 are formed at the large end of the protruding portion 11, so that the mounting holes 12 are spaced apart from each other, and the structural performance of the bus bar connector 10 is not affected.

Both ends of the discharge tube 20 are provided with extensions 21, and the extensions 21 are connected to the bus bar connector 10. The extension part 21 is provided to facilitate the connection of each row of tubes 20 with the bus bar connector 10, the openings of the two bus bar connectors 10 are an inlet and an outlet, and the inlet and the outlet can be concentrated at the upper left or the upper right corner, so that the structure is compact, the occupied space is small, and the installation is convenient.

The number of rows of tubes 20 can be set according to the actual need. In the present embodiment, three rows of tubes 20 are provided, and each bus bar joint 10 is provided with three mounting holes 12, and the three mounting holes 12 are arranged at intervals around the axis of the bus bar joint 10. Three calandria 20 are advanced, three calandria 20 are gone out, and the latus rectum of whole system is the latus rectum sum of three calandria 20.

The calandria 20 is U-shaped, and each calandria 20 is connected in parallel. Adjacent rows of tubes 20 are fixed by spot welding to prevent displacement of the tubes 20.

For convenience of description, the two bus bar connectors 10 are a first bus bar connector and a second bus bar connector, the three mounting holes 12 on the first bus bar connector are a first mounting hole, a second mounting hole and a third mounting hole, and the three mounting holes on the second bus bar connector are a fourth mounting hole, a fifth mounting hole and a sixth mounting hole. The three rows of tubes 20 are respectively a first row of tubes 22, a second row of tubes 23 and a third row of tubes 24, the first row of tubes 22 and the second row of tubes 23 are arranged in parallel at intervals, and the third row of tubes 24 are arranged on the inner sides of the U-shape of the first row of tubes 22 and the second row of tubes 23. The two ends of the third calandria 24 are respectively connected with the second mounting hole and the fifth mounting hole, the two ends of the second calandria 23 are respectively connected with the first mounting hole and the fourth mounting hole, and the two ends of the first calandria 22 are respectively connected with the third mounting hole and the sixth mounting hole.

The embodiment of the utility model provides a still provide a water heater, plate heat collector grid structure including any embodiment of the aforesaid still includes the water tank, passes through the tube coupling between water tank and two confluence joint 10. Wherein, the water heater can be the solar water heater, utilizes solar energy heating hot water, and is clean environmental protection.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A flat plate collector grid construction comprising:

the junction box comprises a junction box body (10), wherein the junction box body (10) is provided with an inner cavity, a protruding part (11) is arranged on the junction box body (10), a mounting hole (12) is formed in the protruding part (11), the mounting hole (12) is communicated with the inner cavity, and a step surface (120) is formed on the inner wall of the mounting hole (12);

the end part of the discharge pipe (20) is inserted into the mounting hole (12) and is abutted against the step surface (120), and the discharge pipe (20) is fixedly connected with the confluence joint (10).

2. Grid construction for a flat plate collector according to claim 1, characterized in that the collector bar (10) is open at one end and closed at the other end, and the projections (11) are provided on the side walls of the collector bar (10).

3. A flat plate type heat collector grid structure according to claim 2, wherein the projection (11) is provided in plurality, and each of the projections (11) is provided with one of the mounting holes (12).

4. The grid construction of a flat plate type heat collector according to claim 2, wherein one projection (11) is provided, and each of the mounting holes (12) is provided at intervals on the projection (11).

5. Grid construction for a flat plate type heat collector according to claim 2, wherein the outer peripheral surface of the open end of the confluence joint (10) is provided with an external thread.

6. The grid construction for a flat plate type heat collector according to claim 1, wherein one end of the bus bar joint (10) is opened, the protrusion (11) is provided at the other end of the bus bar joint (10), and a plurality of the mounting holes (12) are annularly arranged on the protrusion (11).

7. Grid construction according to claim 6, characterised in that the projections (11) are truncated cone-shaped, the small ends of the projections (11) being connected to the collector bar (10), and the large ends of the projections (11) extending away from the collector bar (10).

8. The flat plate type collector grid structure according to any one of claims 1 to 7, wherein the mounting hole (12) comprises a guide section (121), a connection section (122) and a drainage section (123) which are connected in sequence, the diameter of the guide section (121) is not less than that of the connection section (122), and the step surface (120) is formed at the intersection of the connection section (122) and the drainage section (123).

9. Grid construction according to claim 8, characterised in that the guide section (121) is flared.

10. A water heater comprising the flat plate collector grid structure according to any one of claims 1 to 9.