A connection structure of louvered heat transfer blade grid

Abstract

The present invention discloses a connection structure of a louvered heat transfer blade grid, which includes a heat transfer body, a blade grid and a connection block. The heat transfer body is provided with a front blade grid surface and a rear blade grid surface. The blade grid includes a grid plate and grid bars formed by spacing adjacent grid plates. The heat transfer body is formed by a plurality of upper and lower end surfaces being stacked and a plurality of front and rear end surfaces being assembled and installed. The connection block is in a horizontal "H" shape. Each heat transfer body is provided with a slot and connected through the connection block. The connection structure of the present invention can make the connection structure between the heat transfer bodies simple and stable. A connection block can simultaneously realize the upper and lower stacking and front and rear fitting connection of the heat transfer body, and the connection structure is hidden. As a part of the wind tunnel test model, it does not affect the established assembly method with other experimental components.

Description

Technical Field

[0001] The invention relates to the field of heat exchange and heat transfer structure design, and in particular to a connection structure of a louvered heat transfer blade grid. Background Art

[0002] The simulated wind tunnel test is a test mainly used to study gas flow and its interaction with the model. It is divided into multiple modes of testing. In the test, many components are used to measure various force parameters on the model. The measurement accuracy requirements of fluid mechanics are very high, so the environmental requirements for the measuring components are relatively high.

[0003] The gas needs to be heated in the simulated wind tunnel test, which is generally performed in an ultra-high temperature environment. The operating temperature of the heater that heats the gas in the ultra-high temperature environment is relatively high. The life of traditional heater components cannot be guaranteed, and the heating speed is relatively slow, resulting in low heating efficiency.

[0004] Heat transfer test is an important part of the above-mentioned simulated wind tunnel test. The heat transfer (heat exchanger) is particularly important, and the blade is the most basic and core heat transfer unit in the heat exchanger. The heat transfer efficiency of blades with different structural types is also different. At the same time, because it is used in simulated wind tunnel tests, compared with other fields, not only the precision requirements are higher, but also the unit volume is larger. The blades often need to be assembled, so the gaps between the blade components and the heat conduction are required to be higher, in order to achieve better heat transfer efficiency and make the experimental conclusions more accurate. Therefore, it is necessary to redesign the connection structure between the fin structure and the blade body. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the present invention provides a connection structure of a louver-type heat transfer blade grid.

[0006] The technical solution adopted by the present invention is:

[0007] A connection structure of a louvered heat transfer blade grid, comprising a heat transfer body, a blade grid and a connection block, characterized in that:

[0008] The heat transfer body is provided with a front cascade surface and a rear cascade surface, the cascade is composed of a plurality of straight cascade plates spaced evenly apart, including cascade plates and gratings formed by the intervals between adjacent cascade plates, the front cascade surface and the rear cascade surface are connected in the heat transfer body, and the width of the cascade plates is greater than the width of the gratings;

[0009] The heat transfer bodies are in a plurality of numbers and are stacked on the upper and lower ends, and the adjacent stacked heat transfer bodies are connected by the connecting blocks;

[0010] The heat transfer bodies are in a plurality and are attached to each other front to back. The front blade surface or the rear blade surface attached to each heat transfer body is consistent with and connected to each other. The adjacent heat transfer bodies are connected by the connecting block.

[0011] - The connecting block is in a horizontal "H" shape, and the fitting ends of the front grid surface and / or the rear grid surface between the adjacent stacked heat transfer bodies are respectively provided with a slot one and a slot two which are symmetrical with the fitting line as the axis, and the slot one and the slot two are provided at the grid plate of the grid surface, and the notch at one end of the connecting block can be inserted into the slot one and the slot two simultaneously without gap horizontally, so that the stacked adjacent heat transfer bodies are tightly connected; the front grid surface and / or the rear grid surface of the adjacent heat transfer body are provided with the slot one and the slot two, and the fitting surface is a mirror-symmetrical structure, and the connecting block can be inserted into the slot one and the slot two simultaneously without gap horizontally, so that the adjacent heat transfer bodies are tightly connected.

[0012] Furthermore, the heat transfer body and the connecting block are made of the same high thermal conductivity material, so as to avoid the influence of different thermal expansion coefficients on the stability of the structure and the experimental effect.

[0013] Furthermore, an inward recess is provided between the adjacent stacked heat transfer bodies for arranging a heating device.

[0014] Furthermore, the upper end surface of the heat transfer body at the top is a horizontal plane, and baffles protruding vertically outward are provided at both ends for arranging a heating device.

[0015] Furthermore, the depth of slot one or slot two is greater than the depth of the notch at one end of the connecting block. When the connecting block is inserted into slot one or slot two, half of the horizontal bar in the middle of the connecting block is aligned with the surface position of the grid surface.

[0016] Furthermore, the number of slot one or slot two provided on the same grid surface is not less than 2.

[0017] Furthermore, the thickness of the connection block is consistent with the width of the grid plate.

[0018] Furthermore, the width of the grid plate is 1.5-2.5 times the width of the grid bar.

[0019] The present invention has the following technical effects:

[0020] The connection structure between the heat transfer bodies is simple and stable. One connection block can simultaneously realize the upper and lower stacking and front and back fitting connection of the heat transfer bodies. The connection structure is hidden. As part of the wind tunnel test model, it does not affect the established assembly method with other test parts.

[0021] The assembly difficulty is low, all of them are modular structural parts, and there are fewer structural parts. They can be independently heightened and lengthened according to actual experimental needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of stacking adjacent heat transfer body slot 1 and slot 2 of the present invention;

[0024] Figure 3 A schematic diagram of the present invention of stacking adjacent heat transfer bodies into a connection block;

[0025] Figure 4 A schematic diagram of the present invention for fitting adjacent heat transfer body slots;

[0026] Figure 5 It is a schematic diagram of fitting adjacent heat transfer body slots into a connecting block according to the present invention.

[0027] Illustration: 1-heat transfer body, 2-front blade surface, 3-rear blade surface, 4-grid plate, 5-grid bar, 6-connecting block, 7-slot one, 8-slot two. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] like Figure 1 The connection structure of the louvered heat transfer blade grid comprises a heat transfer body (1), a blade grid and a connection block (6), wherein the heat transfer body (1) is the main structure, and a plurality of heat transfer body (1) pieces can be stacked up and down and fitted front and back through the connection structure of the present invention to form a modular installation and extension. The above-mentioned materials used are all the same high thermal conductivity materials, such as high thermal conductivity alloys, etc., to avoid affecting the stability of the structure and the experimental effect due to different thermal expansion coefficients.

[0030] A cascade is provided on the heat transfer body (1), including a front cascade surface (2) and a rear cascade surface (3). The cascade is composed of a plurality of straight cascade plates (4) spaced evenly apart, including the cascade plates (4) and gratings (5) formed by the intervals between adjacent cascade plates (4). The front cascade surface (2) and the rear cascade surface (3) are connected in the heat transfer body (1), consistent with the intervals formed in the cascade surface and connected straightly. At the same time, the width of the cascade plate (4) is greater than the width of the gratings (5), and preferably the width of the cascade plate (4) is twice the width of the gratings (5).

[0031] like Figure 1 As shown, the heat transfer bodies (1) can be stacked up and down, and adjacent heat transfer bodies (1) are provided with inward recesses for arranging heating devices. The adjacent heat transfer bodies (1) are connected by connecting blocks (6). Figure 2 and Figure 3As shown, the mating ends of the front grid surface and the rear grid surface between the heat transfer bodies (1) are provided with slot one (7) and slot two (8) symmetrically with the mating line as the axis on one side, and the same slot one (7) and slot two (8) are also provided at symmetrical positions on the other side. The number of slots can also be increased according to the actual size of the heat transfer body (1) and other conditions. Slot one (7) and slot two (8) are provided at the grid plate (4) of the grid surface. The notch at one end of the connecting block (6) can be inserted into the slot one (7) and slot two (8) simultaneously without gap in the horizontal direction, so that the stacked adjacent heat transfer bodies (1) are tightly connected.

[0032] like Figure 1 and Figure 2 As shown, an inward notch is provided between adjacent heat transfer bodies (1) stacked up and down, the upper end surface of the heat transfer body (1) at the top is a horizontal surface, and baffles protruding vertically outward are provided at both ends, both of which are used to set a heating device. This structural arrangement allows a heating device such as a heating tube to be placed on each layer of the heat transfer body (1), ensuring that each layer of the heat transfer body (1) can be heated and transfer heat in the same condition.

[0033] like Figure 4 and Figure 5 As shown, the front grille surface and / or the rear grille surface of the adjacent heat transfer bodies (1) are provided with a slot 1 (7) and a slot 2 (8), and the bonding surface is a mirror-symmetrical structure, and the connecting block (6) can be inserted into the slot 1 (7) and the slot 2 (8) simultaneously without any gap in the horizontal direction, so that the adjacent heat transfer bodies (1) are tightly connected.

[0034] The connecting block (6) is in a horizontal "H" shape. The thickness of the connecting block (6) is consistent with the width of the grid plate (4). The depth of the slot one (7) or the slot two (8) is greater than the depth of the notch at one end of the connecting block (6). When the connecting block (6) is inserted into the slot one (7) or the slot two (8), the middle half of the horizontal bar of the connecting block (6) is consistent with the surface position of the grid surface. Although the connecting block (6) is inserted into the slot, the upper end, the middle section and the lower end of the notch of the connecting block (6) are actually inserted into the corresponding grid plate (4) at this time, achieving an embedded installation effect. Two or more connecting blocks (6) are inserted into a blade surface of the heat transfer body (1), which can not only stabilize the adjacent heat transfer bodies (1) stacked up and down, but also the same connection method of the notch on the other side of the connecting block (6) of this structure also realizes the connection of the adjacent heat transfer blocks in front and behind, and has the same stability.

[0035] The heat transfer body shown in the embodiments of the present invention and the accompanying drawings is an arc-shaped combined structure. During production and manufacturing, it can also be made into other regular shapes such as rectangles according to actual requirements, so as to realize a modular installation combined structure with multiple layers in height and multiple sections in length.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure of a louvered heat transfer blade grid, comprising a heat transfer body, a blade grid and a connection block, characterized in that: —The heat transfer body and the connecting block are made of the same high thermal conductivity material; The heat transfer body is provided with a front cascade surface and a rear cascade surface, the cascade is composed of a plurality of straight cascade plates spaced evenly apart, including cascade plates and gratings formed by the intervals between adjacent cascade plates, the front cascade surface and the rear cascade surface are connected in the heat transfer body, and the width of the cascade plates is greater than the width of the gratings; The heat transfer bodies are in a plurality of numbers and are stacked on the upper and lower ends, and the adjacent stacked heat transfer bodies are connected by the connecting blocks; The heat transfer bodies are in a plurality and are attached to each other front to back. The front blade surface or the rear blade surface attached to each heat transfer body is consistent with and connected to each other. The adjacent heat transfer bodies are connected by the connecting block. The connecting block is in a horizontal "H" shape, and the fitting ends of the front grille surface and / or the rear grille surface of the adjacent stacked heat transfer bodies are respectively provided with a slot 1 and a slot 2 symmetrically with the fitting line as the axis, and the slot 1 and the slot 2 are provided at the grille plate of the grille surface, and the notch at one end of the connecting block can be inserted into the slot 1 and the slot 2 simultaneously without gap in the horizontal direction, so that the stacked adjacent heat transfer bodies are tightly connected; the front grille surface and / or the rear grille surface of the adjacent heat transfer body are provided with the slot 1 and the slot 2, and the fitting surface is a mirror-symmetrical structure, and the connecting block can be inserted into the slot 1 and the slot 2 simultaneously without gap in the horizontal direction, so that the adjacent heat transfer bodies are tightly connected; —The number of slot one or slot two provided on the same grid surface is not less than 2.

2. The connection structure of the louvered heat transfer blade grid according to claim 1, characterized in that: An inward notch is provided between the adjacent stacked heat transfer bodies for arranging a heating device.

3. A connection structure of a louvered heat transfer blade grid according to claim 1 or 2, characterized in that: The upper end surface of the heat transfer body at the top is a horizontal plane, and baffles protruding vertically outward are provided at both ends for arranging a heating device.

4. The connection structure of the louvered heat transfer blade grid according to claim 1, characterized in that: The depth of the slot one or the slot two is greater than the depth of the notch at one end of the connecting block. When the connecting block is inserted into the slot one or the slot two, one-half of the horizontal bar in the middle section of the connecting block is aligned with the surface position of the grid surface.

5. The connection structure of the louvered heat transfer blade grid according to claim 1, characterized in that: The width of the grid plate is 1.5-2.5 times the width of the grid bar.

6. A connection structure of a louvered heat transfer blade grid according to claim 1 or 5, characterized in that: The thickness of the connecting block is consistent with the width of the grid plate.

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