Chord grid wire group heat and mass transfer strengthening mechanism

Abstract

The utility model discloses a string grid wire group heat and mass transfer strengthening mechanism which comprises a plurality of frame pieces, a plurality of string wire columns and a wettable fiber fabric. The frame pieces are located on the periphery and connected into a frame shape, and at least part of the frame pieces are liquid injection frame pipes capable of being injected with liquid. The multiple string wire columns are located in the middle and are hollow, holes are formed in the peripheral walls of the string wire columns, and the string wire columns communicate with the liquid injection frame pipe, so that liquid in the liquid injection frame pipe can flow into inner cavities of the string wire columns; and the wettable fiber fabric covers the outer part of the string silk column and can be wetted by liquid flowing out of pores of the string silk column. The utility model has the technical effects that the capillary action of the fiber fabric can be utilized to realize self-making of a uniform liquid film to absorb wake flow substances; a movable plug is arranged to adjust the seepage size of seepage holes so as to control the generation frequency of a liquid film, liquid between string wire columns is mutually adhered to form a water film, and heat and mass exchange synergy and complex component wake flow treatment are achieved in cooperation with the streaming effect of a string grid wire group heat and mass exchange strengthening mechanism.

Description

Technical Field

[0001] The utility model relates to the technical fields of environmental protection and heat and mass transfer, in particular to a heat and mass transfer enhancement mechanism for a chord grid wire group. Background Technique

[0002] It is found in practical experiments that the combined use of a chord grid - spray system can enhance the heat and mass transfer effect, which is corroborated by "Model and Experiment of Wet Hydrophobic Fiber Grid Strengthening the Heat and Moisture Transfer Process of Exhaust Airflow" published in the Journal of China Coal Society. Existing paper experiments also show that the change of working medium will affect heat and mass transfer, such as the paper "Conjugate heat and mass transfer in a binary sessile droplet on a hydrophobic plate: Effects of plate temperature and component composition".

[0003] At present, the heat and mass transfer enhancement mechanism of the chord grid wire group is simple, and its ability to handle complex tail gas treatment and extract heat and moisture energy is weak. There is an urgent need for a new heat and mass transfer enhancement mechanism for the chord grid wire group to solve such problems. Content of the Utility Model

[0004] In order to solve the problems mentioned in the background technique, the utility model proposes a heat and mass transfer enhancement mechanism for a chord grid wire group with a new structure, which can realize the enhancement of heat and moisture energy extraction and the requirement of complex tail gas treatment.

[0005] The utility model is realized by the following technical solutions:

[0006] A heat and mass transfer enhancement mechanism for a chord grid wire group includes a plurality of frame members, a plurality of chord wire columns, and a wettable fiber fabric; the plurality of frame members are connected to form a frame shape around, and at least part of the frame members are liquid - injection frame pipes capable of injecting liquid; the plurality of chord wire columns are located in the middle, are hollow and have pores on the peripheral wall, and each chord wire column is communicated with the liquid - injection frame pipe so that the liquid in the liquid - injection frame pipe can flow into the inner cavity of the chord wire column; the wettable fiber fabric covers the outside of the chord wire column and can be wetted by the liquid flowing out from the pores of the chord wire column.

[0007] Preferably, the plurality of frame members form a quadrilateral, and two pairs of opposite sides are liquid - injection frame pipes, and the other two pairs of opposite sides are structural frames.

[0008] Preferably, the liquid injected into the liquid - injection frame pipe is a liquid type determined according to the composition of the wake flow.

[0009] Preferably, the plurality of chord wire columns are arranged in parallel and have gaps that can make the liquid between the chord wire columns adhere to each other to form a water film.

[0010] Preferably, a pore adjusting mechanism for regulating the pore size is further provided at each of the pore positions.

[0011] Preferably, the pore adjusting mechanism is a movable plug.

[0012] Preferably, the movable plug adjusts the pore size in cooperation with the wind speed and the concentration of substances in the air flow.

[0013] The technical effect of the present invention is that by providing a liquid injection frame tube, string wire columns, and a wettable fiber fabric, the capillary action of the fiber fabric can be used to form a self-made uniform liquid film to absorb wake substances; the flow rate of the seepage pores is also adjusted by setting a movable plug to control the liquid film generation frequency, and the liquid between the string wire columns is adhesively connected to form a water film, and the flow-around effect of the heat and mass transfer enhancement mechanism of the string grid wire group is combined to achieve heat and mass transfer enhancement and the treatment of complex component wakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to clearly describe the technical solutions in the embodiments of the present invention, the related example drawings will be briefly introduced below.

[0015] Figure 1 is an application installation schematic diagram of the heat and mass transfer enhancement mechanism of the string grid wire group of the present invention;

[0016] Figure 2 is the overall structure diagram of the heat and mass transfer enhancement mechanism of the string grid wire group of the present invention;

[0017] Figure 3 is Figure 2 a schematic diagram of the string wire column in the heat and mass transfer enhancement mechanism of the string grid wire group shown;

[0018] Figure 4 is Figure 2 a schematic diagram of the pore control structure in the heat and mass transfer enhancement mechanism of the string grid wire group shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions and effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not used to limit the present invention.

[0020] Please refer to Figures 1 - 4 , an embodiment of the present invention provides a heat and mass transfer enhancement mechanism of a string grid wire group, which mainly includes a liquid injection frame tube 3, a structural frame 1, string wire columns 2, and a wettable fiber fabric (not shown in the figure). In application, the heat and mass transfer enhancement mechanism of the string grid wire group is placed between the side to be heat and mass transferred 4 and the side that has been heat and mass transferred 6 (such as Figure 1 the position indicated by the reference numeral 5 in

[0021] such asFigure 2 , Figure 3 As shown in Figure 3 , the liquid injection frame tube 3 and the structural frame 1, as frame members, are located on the four sides and connected into a frame shape. Among them, there are two liquid injection frame tubes 3, located on the upper and lower sides; there are also two structural frames 1, located on the left and right sides. The liquid injection frame tube 3 can inject liquid (such as from the opening provided at the end) and allow the liquid to flow in its inner cavity. The structural frame 1 only serves as a structural member. A plurality of chord wire columns 2 are located in the middle, hollow and having pores 7 on the peripheral wall. Each chord wire column 2 is communicated with the liquid injection frame tube 3, so that the liquid in the liquid injection frame tube 3 can flow into the inner cavity 8 of the chord wire column 2. The plurality of chord wire columns 2 are arranged in parallel and have gaps that can make the liquid between the chord wire columns 2 adhere to each other to form a water film. The wettable fiber fabric covers the outside of the chord wire columns 2 and can be wetted by the liquid flowing out of the pores of the chord wire columns 2.

[0022] As Figure 4 shown in Figure 4 , a pore adjusting mechanism for adjusting the size of the pores is also provided at each pore position. In this embodiment, the pore adjusting mechanism is a movable plug 9. However, it is not limited to the movable plug. As long as it is a mechanism that can adjust the pore size, it can also be other structures, or not provided. The movable plug adjusts the pore size in cooperation with the wind speed and the concentration of substances in the air flow.

[0023] In specific implementation, multiple groups of chord grid wire group heat and mass transfer enhancement mechanisms are arranged at a preset position. The liquid is injected from the liquid injection frame tube 3. When treating substances in complex wake flows, different liquids can be injected into the liquid injection frame tube 3 in sequence according to the wake flow components for wake flow treatment, such as using desulfurization and denitrification liquids. Under the action of gravity or water supply pressure, the liquid is squeezed into the pores in the chord wire columns 2. Under the action of liquid penetration and the capillary action of the outer covering fiber fabric, the liquid covers the entire fiber fabric. The liquid between the chord wire columns 2 adheres to each other to form a water film, which breaks under the action of the oncoming flow. The broken liquid droplets move with the air flow. Due to the circular cylinder flow around, vortices are generated behind it, and the liquid droplets in the vortices carry out mass transfer and heat transfer. The seepage velocity of the pore liquid can be controlled by the pore adjusting mechanism, and the pore size can be adjusted in cooperation with the wind speed and the concentration of substances in the air flow during implementation.

[0024] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat and mass transfer intensification mechanism for a string grid wire group, characterized in that It includes a plurality of frame members, a plurality of chord columns, and a wettable fiber fabric; the plurality of frame members are connected to form a frame shape around, and at least part of the frame members are liquid injection frame tubes capable of injecting liquid; the plurality of chord columns are located in the middle, are hollow and have pores on the peripheral wall, and each chord column is communicated with the liquid injection frame tube so that the liquid in the liquid injection frame tube can flow into the inner cavity of the chord column; the wettable fiber fabric covers the outside of the chord column and can be wetted by the liquid flowing out of the pores of the chord column.

2. The heat and mass transfer enhancement mechanism of the chord grid wire group according to claim 1, characterized in that, The plurality of frame members form a quadrilateral, with two pairs of sides being liquid injection frame tubes and the other two pairs of sides being structural frames.

3. The heat and mass transfer enhancement mechanism of the chord grid wire group according to claim 1, characterized in that The liquid injected into the liquid injection frame tube is a liquid type determined according to the wake components.

4. The heat and mass transfer enhancement mechanism of the chord grid wire group according to claim 1, characterized in that, The plurality of chord columns are arranged in parallel and have gaps that can make the liquid between the chord columns adhere to each other to form a water film.

5. The heat and mass transfer enhancement mechanism of the chord grid wire group according to claim 1, characterized in that, A pore adjusting mechanism for adjusting the size of the pores is also provided at each pore position.

6. The heat and mass transfer enhancement mechanism of the chord grid wire group according to claim 5, characterized in that, The pore adjusting mechanism is a movable plug.

7. The heat and mass transfer enhancement mechanism of the chord grid wire group according to claim 6, characterized in that, The movable plug adjusts the size of the pores in coordination with the wind speed and the concentration of substances in the air flow.

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