A uniform liquid distribution structure for a lithium bromide unit

Abstract

The utility model relates to a kind of even liquid distribution structures for lithium bromide unit, especially applicable to lithium bromide absorption type unit condenser;The device includes liquid inlet pipe, liquid distribution box, liquid distribution pipe, sealing plate, liquid distribution plate, liquid blocking groove and liquid distribution assembly;Solution is entered into liquid distribution box by liquid inlet pipe, distributes by liquid distribution box and liquid distribution pipe top outlet hole, liquid distribution pipe is inclined design and is compensated by gravity potential difference uneven pressure distribution, sealing plate limits solution flow direction, liquid distribution plate blocks wall flow, ensure that solution evenly drops to heat exchange tube;Liquid blocking groove uses U type structure to collect splashing solution and promote natural drop;The utility model structure is compact, and liquid distribution uniformity is high, applicable to improve lithium bromide unit heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium bromide absorption refrigeration systems, specifically to a uniform liquid distribution structure for lithium bromide units. Background Technology

[0002] In lithium bromide absorption chillers, uniform solution distribution and separation of non-condensable gases in the condenser are key factors affecting heat exchange efficiency. In existing technologies, the distribution pipe typically distributes the solution through bottom or top outlet holes. However, when the inlet pipe is not centrally located, uneven pressure distribution within the distribution pipe leads to uneven solution distribution. Furthermore, wall flow easily forms on the surface of the distribution pipe, especially when it is tilted, exacerbating the uneven distribution problem as the solution flows to lower levels. Traditional devices lack effective means to block wall flow and have low gas-liquid separation efficiency, resulting in reduced heat exchange efficiency and operational instability. Therefore, a novel distribution structure is urgently needed to achieve uniform solution distribution and efficient gas-liquid separation. Summary of the Invention

[0003] The purpose of this invention is to provide a uniform liquid distribution structure for lithium bromide units, in order to solve the problems of pressure difference caused by non-centralized liquid inlet, uneven liquid distribution caused by wall flow, and low gas-liquid separation efficiency in the prior art, and to achieve efficient and stable solution distribution and heat exchange.

[0004] To achieve the above objectives, this utility model designs a uniform liquid distribution structure for lithium bromide generator units. The device includes an inlet pipe 1, a distribution box 2, a distribution pipe 3, a sealing plate 4, a liquid equalization plate 5, a liquid baffle 6, and a liquid distribution assembly 11. The inlet pipe 1 is connected to the distribution box 2 and is used to introduce the solution into the generator unit. The distribution box 2 has liquid collection and distribution holes on both sides, which are connected to several distribution pipes 3. The distribution pipes 3 are placed at an angle to compensate for uneven pressure distribution through gravitational potential difference. A sealing plate is provided on the other side of the distribution pipe 3. Plate 4 restricts the flow direction of the solution; liquid outlet holes are opened at the top of the liquid distribution box 2 and the liquid distribution pipe 3 to facilitate the upward separation of non-condensable gases; a U-shaped liquid baffle 6 is set above the liquid distribution box 2 and the liquid distribution pipe 3 to collect splashed solution; liquid distribution plates 5 are set at intervals on the liquid distribution pipe 3 to block the wall flow and ensure that the solution drips evenly onto the heat exchange tube; the liquid distribution assembly 11 consists of an inlet pipe 1, a liquid distribution box 2, a liquid distribution pipe 3, a sealing plate 4, and a liquid distribution plate 5, and is welded to the tube sheet at both ends.

[0005] This device has the following significant advantages: Pressure difference compensation: The inclined design of the liquid distribution pipe effectively compensates for the pressure unevenness caused by the non-centralized liquid inlet; Improved liquid distribution uniformity: The liquid distribution plate blocks the wall flow, ensuring uniform solution distribution; High-efficiency gas-liquid separation: The top liquid outlet and U-shaped liquid baffle promote the separation of non-condensable gases; Compact and reliable structure: Components are optimized in synergy, making maintenance simple. Attached Figure Description

[0006] Figure 1This is an overall structural view of an embodiment of the present utility model.

[0007] Figure 2 This is a side view of the overall structure of an embodiment of the present utility model.

[0008] Figure 3 This is a structural view of the liquid distribution assembly according to an embodiment of the present invention.

[0009] In the diagram, 1-inlet pipe, 2-dispensing box, 3-distribution pipe, 4-sealing plate, 5-equalizing plate, 6-blocking groove, 11-distribution assembly. Detailed Implementation

[0010] Exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings to enable those skilled in the art to readily implement them; for clarity, parts irrelevant to the description have been omitted.

[0011] A preferred embodiment of this utility model is a uniform liquid distribution structure for lithium bromide units, suitable for lithium bromide absorption chiller condensers. The device includes an inlet pipe 1, a distribution box 2, distribution pipes 3, a sealing plate 4, a leveling plate 5, a baffle 6, and a liquid distribution assembly 11. The inlet pipe 1 is connected to the distribution box 2, and the solution in the unit enters the distribution box 2 through the inlet pipe 1. The distribution box 2 has collection and distribution holes on both sides, connected to several distribution pipes 3, allowing the solution to be evenly distributed to the distribution pipes 3 through the distribution box 2. The distribution box 2 and the distribution pipes 3 have outlet holes at the top, and each distribution pipe 3 has a sealing plate 4 on the other side. In some cases, the inlet pipe 1 and the distribution box 2 may be positioned closer to the edge rather than centrally for liquid inlet, as shown in the attached diagram. Figure 1 As shown; in this case, the pressure at different outlet holes will not be uniform; usually, the liquid distribution pipe 3 is placed at an angle to compensate for the pressure difference through the gravitational potential difference; a liquid baffle 6 is provided above the liquid distribution box 2 and the liquid distribution pipe 3. Non-condensable gases and water vapor flashing due to heating brought in by the solution are splashed onto the liquid baffle 6 through the outlet holes; the liquid baffle 6 adopts a U-shaped structure, which is conducive to the natural dripping of the solution; after the solution splashes onto the liquid baffle 6, some of the solution will drip onto the surface of the liquid distribution pipe 3. Because the liquid distribution pipe 3 is placed at an angle, the solution is prone to flow along the liquid distribution pipe 3 to the lower side, forming a wall flow and causing uneven dripping; therefore, a liquid equalization plate 5 is set at intervals to block the solution dripping onto the liquid distribution pipe 3 from flowing to the lower side, thereby promoting the solution to drip evenly onto the surface of the heat exchange tube, improving the heat exchange efficiency, and achieving high-efficiency heat exchange.

[0012] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, modifications, equivalent substitutions or improvements can be made according to actual needs. All changes within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A uniform liquid distribution structure for lithium bromide units, characterized in that, It includes an inlet pipe (1), a liquid distribution box (2), a liquid distribution pipe (3), a sealing plate (4), a liquid equalization plate (5), a liquid blocking groove (6), and a liquid distribution assembly (11); the inlet pipe (1) is connected to the liquid distribution box (2) and is used to introduce the solution into the unit; the liquid distribution box (2) is provided with liquid collection and distribution holes on both sides and connected to several liquid distribution pipes (3); the liquid distribution box (2) and the liquid distribution pipes (3) are provided with liquid outlet holes at the top, the liquid distribution pipes (3) are placed at an angle, and a sealing plate (4) is provided on the other side of the liquid distribution pipes (3); a liquid blocking groove (6) is provided above the liquid distribution box (2) and the liquid distribution pipes (3), and the liquid blocking groove (6) adopts a U-shaped structure; a liquid equalization plate (5) is provided on the liquid distribution pipes (3) at intervals to block the liquid from adhering to the wall.

2. The uniform liquid distribution structure for lithium bromide units according to claim 1, characterized in that, The inclined design of the liquid distribution pipe (3) compensates for the pressure difference at the outlet hole caused by the non-central position of the liquid inlet pipe (1) through the potential difference.

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