Flat-plate solar collector with double independent runner plate cores

Abstract

The utility model discloses a flat-plate solar collector with double independent runner plate cores, which comprises a plurality of flat-plate solar collectors connected side by side, an upper glass cover, a heat collection plate core and a heat insulation layer of each flat-plate solar collector are sequentially arranged in a shell from top to bottom, and the heat collection plate core comprises a liquid inlet end plate core and a liquid return end plate core. Each of the liquid inlet end plate core and the liquid return end plate core comprises a flow channel and a heat absorbing plate, a liquid outlet of the flow channel of the front liquid inlet end plate core is communicated with a liquid inlet of the flow channel of the rear liquid inlet end plate core, a liquid inlet of the flow channel of the front liquid return end plate core is communicated with a liquid outlet of the flow channel of the rear liquid return end plate core, and a liquid outlet of the flow channel of the rear liquid return end plate core is communicated with the heat absorbing plate. A liquid inlet of the liquid inlet end plate core runner located at the head end is communicated with a liquid inlet connector, a liquid outlet of the liquid inlet end plate core runner located at the tail end is communicated with a liquid inlet of the liquid return end plate core runner located at the tail end, and a liquid outlet of the liquid return end plate core runner located at the head end is communicated with a liquid return connector. According to the invention, same-pass pipelines are saved, so that the pipeline arrangement is more reasonable.

Description

Technical Field

[0001] This utility model relates to the field of solar collector technology, specifically to a flat-plate solar collector with dual independent flow channel cores. Background Technology

[0002] Flat-plate solar collectors typically consist of a collector core, which includes an absorber plate, multiple branch pipes, and two main pipes. Multiple holes are evenly spaced along the length of the main pipes. The two ends of the branch pipes are inserted into the holes in the main pipes and welded to them. The branch pipes are mounted on the back of the absorber plate and welded thereto. The two main pipes serve as the liquid inlet and outlet pipes, typically with the lower main pipe as the inlet and the upper one as the outlet. When multiple flat-plate solar collectors are connected in series, the upper main pipes of adjacent collectors are connected in series with the upper main pipes, and the lower main pipes are connected in series with the lower main pipes, forming an array. Pipe connections are required at both ends of the array: the lower end of the array's starting point is the liquid inlet interface, and the upper end of the array's ending point is the liquid inlet and outlet interface. The lateral distance of the series-connected arrays is relatively large, resulting in longer pipe extensions, increasing material and installation costs. Furthermore, this pipe arrangement is somewhat messy and cumbersome to install.

[0003] Therefore, it is necessary to provide a flat-plate solar collector with dual independent flow channel cores to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a flat-plate solar collector with dual independent flow channel cores, which reduces the need for pipe laying and lowers production and installation costs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A flat-plate solar collector with dual independent flow channel cores includes multiple flat-plate solar collectors connected side-by-side. Each flat-plate solar collector includes an upper glass cover, a heat collection core, and an insulation layer. The upper glass cover, heat collection core, and insulation layer are arranged sequentially from top to bottom inside a shell. The shell includes a bottom plate and sides. Each heat collection core includes a liquid inlet core and a liquid return core. Both the liquid inlet core and the liquid return core include flow channels and heat absorption plates. For two adjacent flat-plate solar collectors, the outlet of the flow channel of the first liquid inlet core is connected to the inlet of the flow channel of the second liquid inlet core, and the inlet of the flow channel of the first liquid return core is connected to the outlet of the flow channel of the second liquid return core. The inlet of the flow channel at the first end is connected to the liquid inlet interface, the outlet of the flow channel at the last end is connected to the inlet of the flow channel of the last liquid return core, and the outlet of the flow channel at the first end is connected to the liquid return interface.

[0007] Preferably, both the liquid inlet end plate core and the liquid return end plate core are vertically arranged, and the liquid inlet end plate core and the liquid return end plate core are symmetrically arranged inside the shell.

[0008] Preferably, the flow channel includes an S-shaped flow channel or a double rectangular parallel flow channel.

[0009] Preferably, the liquid outlet and liquid inlet of the flow channel are both located on the same end face, and the shell is provided with a liquid inlet hole and a liquid outlet hole, through which the liquid inlet and liquid outlet of the flow channel pass out of the shell respectively.

[0010] Preferably, both the liquid inlet end plate core and the liquid return end plate core are horizontally placed, and the liquid inlet end plate core and the liquid return end plate core are symmetrically arranged vertically inside the shell.

[0011] Preferably, the flow channel includes a U-shaped flow channel, with the outlet and inlet of the U-shaped flow channel respectively located at both ends of the shell. The shell has an inlet hole and an outlet hole, and the inlet and outlet of the flow channel pass through the shell through the inlet hole and outlet hole respectively.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] When multiple flat-plate solar collectors with dual independent flow channel cores as described in this application are installed side by side, the inlet and outlet pipes of all flat-plate solar collectors form a series internal circulation system, saving the required parallel pipes, making the pipe layout more reasonable, and reducing the installation difficulty. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the series installation of a flat-plate solar collector with the inlet and outlet plates placed vertically and using an S-shaped flow channel.

[0015] Figure 2 This is a schematic diagram of the structure of a heat collection plate core with the liquid inlet end plate core and the liquid return end plate core placed vertically and using an S-shaped flow channel;

[0016] Figure 3 This is a side view of the flow channel installed on the heat absorber plate;

[0017] Figure 4 This is a schematic diagram of the structure of a heat collection plate core with the liquid inlet end plate core and the liquid return end plate core placed vertically and using double rectangular parallel flow channels;

[0018] Figure 5 This is a schematic diagram of a series installation of a flat-plate solar collector with the inlet and outlet plates placed horizontally and using a U-shaped flow channel.

[0019] Figure 6 This is a schematic diagram of a heat collection plate core with the inlet and return liquid cores placed horizontally and using a scalloped flow channel.

[0020] Wherein, 1-shell, 2-inlet plate core, 201-inlet of the inlet plate core flow channel, 202-outlet of the inlet plate core flow channel, 3-return plate core, 301-inlet of the return plate core flow channel, 302-outlet of the return plate core flow channel, 4-flow channel, 5-heat absorber plate, 6-inlet interface, 7-return interface Detailed Implementation

[0021] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixed connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0024] A flat-plate solar collector with dual independent flow channel cores includes four flat-plate solar collectors connected side by side. Each flat-plate solar collector includes an upper glass cover, a collector core, and an insulation layer. The upper glass cover, collector core, and insulation layer are installed sequentially from top to bottom inside a housing 1. The housing includes a bottom plate and sides. The collector core includes a liquid inlet core 2 and a liquid return core 3. Both the liquid inlet core and the liquid return core include flow channels 4 and absorber plates 5. Two adjacent flat-plate solar collectors... The outlet 202 of the previous inlet end plate core flow channel is connected to the inlet 201 of the next inlet end plate core flow channel, the inlet 301 of the previous return end plate core flow channel is connected to the outlet 302 of the next return end plate core flow channel, the inlet of the inlet end plate core flow channel at the first end is connected to the inlet interface 6, the outlet of the inlet end plate core flow channel at the end is connected to the inlet of the end return end plate core flow channel, and the outlet of the return end plate core flow channel at the first end is connected to the return interface 7.

[0025] Example 1

[0026] As Figures 1 to 3 shown, both the liquid inlet end plate core and the liquid return end plate core are placed vertically, and the liquid inlet end plate core and the liquid return end plate core are symmetrically arranged left and right inside the housing. The areas of the liquid inlet end plate core and the liquid return end plate core are equal. The flow channel is selected as an S-shaped flow channel. The liquid outlet and the liquid inlet of the flow channel are both arranged on the same end face. The housing is provided with a liquid inlet hole and a liquid outlet hole. The liquid inlet and the liquid outlet of the flow channel pass through the housing through the liquid inlet hole and the liquid outlet hole respectively.

[0027] As Figure 4 shown, preferably, the flow channel can also be selected as a double rectangular parallel flow channel.

[0028] Example 2

[0029] As Figures 5 to 6 shown, both the liquid inlet end plate core and the liquid return end plate core are placed horizontally, and the liquid inlet end plate core and the liquid return end plate core are symmetrically arranged up and down inside the housing. The areas of the liquid inlet end plate core and the liquid return end plate core are equal. The flow channel is selected as a 曰-shaped flow channel. The liquid outlet and the liquid inlet of the flow channel are respectively arranged at both ends of the housing. The housing is provided with a liquid inlet hole and a liquid outlet hole. The liquid inlet and the liquid outlet of the flow channel pass through the housing through the liquid inlet hole and the liquid outlet hole respectively.

[0030] Installation method of a flat solar collector with a double independent flow channel plate core: During installation, four flat solar collectors are placed side by side. The liquid inlet of the liquid inlet end plate core of the first flat solar collector is connected to the liquid inlet interface of the pipeline. The liquid outlet of the liquid inlet end plate core of the first flat solar collector is connected to the liquid inlet of the liquid inlet end plate core of the second flat solar collector. The liquid outlet of the liquid inlet end plate core of the second flat solar collector is connected to the liquid inlet of the liquid inlet end plate core of the third flat solar collector. The liquid outlet of the liquid inlet end plate core of the third flat solar collector is connected to the liquid inlet of the liquid inlet end plate core of the fourth flat solar collector. The liquid outlet of the liquid inlet end plate core of the fourth flat solar collector is connected to the liquid inlet of the liquid return end plate core of the fourth flat solar collector. The liquid outlet of the liquid return end plate core of the fourth flat solar collector is connected to the liquid inlet of the liquid return end plate core of the third flat solar collector. The liquid outlet of the liquid return end plate core of the third flat solar collector is connected to the liquid inlet of the liquid return end plate core of the second flat solar collector. The liquid outlet of the liquid return end plate core of the second flat solar collector is connected to the liquid inlet of the liquid return end plate core of the first flat solar collector. The liquid outlet of the liquid return end plate core of the first flat solar collector is connected to the liquid return interface of the pipeline. In this way, an internal circulation system is formed, saving the required same-way pipeline, making the pipeline layout more reasonable, and reducing the installation difficulty.

[0031] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A flat-plate solar collector with dual independent flow channel cores, comprising multiple flat-plate solar collectors connected in parallel, wherein each flat-plate solar collector includes an upper glass cover, a heat collection core, and a heat insulation layer, the upper glass cover, the heat collection core, and the heat insulation layer being arranged sequentially from top to bottom inside a shell (1), the shell including a bottom plate and sides, characterized in that: The heat collection plate core includes an inlet end plate core (2) and a return end plate core (3). Both the inlet end plate core and the return end plate core include a flow channel (4) and a heat absorption plate (5). For two adjacent flat plate solar collectors, the outlet (202) of the flow channel of the first inlet end plate core is connected to the inlet (201) of the flow channel of the second inlet end plate core. The inlet (301) of the flow channel of the first return end plate core is connected to the outlet (302) of the flow channel of the second return end plate core. The inlet of the flow channel of the first inlet end plate core is connected to the inlet interface (6). The outlet of the flow channel of the first inlet end plate core is connected to the inlet of the flow channel of the second return end plate core. The outlet of the flow channel of the first return end plate core is connected to the return interface (7).

2. A flat-plate solar collector with dual independent flow channel cores according to claim 1, characterized in that: Both the liquid inlet plate and the liquid return plate are vertically arranged, and the liquid inlet plate and the liquid return plate are symmetrically arranged inside the shell.

3. A flat-plate solar collector with dual independent flow channel cores according to claim 2, characterized in that: The flow channel includes an S-shaped flow channel or a double rectangular parallel flow channel.

4. A flat-plate solar collector with dual independent flow channel cores according to claim 2, characterized in that: The liquid outlet and liquid inlet of the flow channel are both located on the same end face. The shell has a liquid inlet hole and a liquid outlet hole. The liquid inlet and liquid outlet of the flow channel pass through the liquid inlet hole and the liquid outlet hole respectively.

5. A flat-plate solar collector with dual independent flow channel cores according to claim 1, characterized in that: Both the liquid inlet end plate and the liquid return end plate are horizontally placed, and the liquid inlet end plate and the liquid return end plate are symmetrically arranged vertically inside the shell.

6. A flat-plate solar collector with dual independent flow channel cores according to claim 5, characterized in that: The flow channel includes a shaped flow channel with an outlet and an inlet at both ends of the shell. The shell has an inlet hole and an outlet hole, and the inlet and outlet of the flow channel pass through the shell through the inlet hole and outlet hole, respectively.

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