CN115164225A - Equipment for recovering flue gas moisture - Google Patents
Equipment for recovering flue gas moisture Download PDFInfo
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- CN115164225A CN115164225A CN202210809211.4A CN202210809211A CN115164225A CN 115164225 A CN115164225 A CN 115164225A CN 202210809211 A CN202210809211 A CN 202210809211A CN 115164225 A CN115164225 A CN 115164225A
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- heat dissipation
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- flue gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B3/00—Condensers in which the steam or vapour comes into direct contact with the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The application relates to the technical field of flue gas treatment, and provides a device for recovering flue gas moisture. The device comprises a water collecting module, a cross flow blast module and a heat dissipation mixed flow module which are sequentially arranged from bottom to top along the direction of hot flue gas flow; the water receiving module is provided with a channel for passing heat supply smoke and a concave part for guiding water; the cross flow blower module provides cold fluid medium for exchanging heat of hot smoke passing through the channel; the heat dissipation mixed flow module is provided with a plurality of heat dissipation elements; the heat dissipation element is provided with a cold fluid flow channel and a hot fluid flow channel. The device and the method can adapt to the working conditions of flue gas with high flow rate, standard pollutant indexes and saturated or supersaturated humidity, and can be installed on the top of the original desulfurizing tower (a spray tower and a wet electric tower) in an integrated manner.
Description
Technical Field
The application belongs to the technical field of flue gas treatment, and particularly relates to a device for recovering flue gas moisture.
Background
At present, the treatment of flue gas pollutants generally adopts a wet treatment process, including wet desulfurization, wet spray washing, cyclone plate tower treatment, wet electrostatic dust removal and the like, and the treated flue gas is often in a wet saturation state while the pollutants in the waste gas are purified. These saturated wet flue gas emission atmospheres pose the following three problems:
firstly, the flue gas that discharges to atmosphere produces a large amount of white rain fog under the low or high operating mode condition of humidity of temperature, though its pollutant contribution is limited, because of its displacement is big, diffusion condition reason such as relatively poor, and visual pollution is comparatively serious. The white rain fog causes the problems of reduced visibility, icing on the surfaces of roads and equipment facilities and the like under the cold working condition in winter, and seriously influences the traffic passing of the periphery and the safe production in a factory area.
Secondly, the evaporation water amount of the wet treatment process is large, and therefore, a large amount of water replenishing requirements of a system are generated. Taking a 300MW unit wet desulphurization system as an example, only the desulphurization evaporation water amount reaches nearly 50T/h, a large amount of clean water is taken away by saturated wet flue gas dispersed in air, the standard coal coefficient is 0.257kgce/T (GB/T2598-2020 attached table B.1) according to the conversion of new water, only 102.8T of standard coal can be consumed by the water supplement of the desulphurization system every year, and 285T of carbon dioxide emission is generated.
Thirdly, the evaporation of a large amount of water leads to the continuous concentration of non-volatile components in the circulating water of the wet treatment system, and the harmful components comprise chloride ions and the like. The limit of the environmental capacity of each place is limited, the limit of the total discharge amount of a part of newly built factories is quite strict, and even no waste water discharge allowance exists. Under the condition that waste water cannot be discharged and replaced, chloride ion concentration caused by water evaporation can enable the concentration of chloride in circulating slurry to rapidly rise to be more than 10000ppm, so that equipment and pipelines are corroded, and equipment failure and property loss are caused. If the chloride ions in the water are removed by adopting the wastewater zero discharge technologies such as concentration evaporation, ultrafiltration reverse osmosis and the like, a large amount of equipment investment and operation cost are increased.
The existing flue gas 'white water removing' water collecting technology comprises the following steps: flue gas condensation technology, condensation and reheating technology, membrane recovery technology, absorbent adsorption technology and the like. The flue gas condensation technology conventionally adopts a dividing wall type condensation heat exchanger and adopts an air cooling or water cooling mode, but the problems of large equipment volume, large flue gas resistance and the like are prominent. The membrane cooling separation technology has the advantages of good water quality recovery, generally small gas application amount, large system resistance, high membrane material cost and large resistance. The absorbent adsorption technology usually adopts solid adsorbents such as silica gel, activated alumina, glycol substances and the like, and the adsorbents are only used for a small-amount water vapor adsorption process due to higher use and replacement cost.
The method has the advantages that firstly, the method in the prior art has low equipment integration level, taking the condensation and reheating technology as an example, a flue gas condenser and a flue gas heater are respectively and independently arranged, and the occupied space of the equipment is large; secondly, aiming at the discharge capacity of over 50 ten thousand meters 3 The industrial flue gas per hour has large equipment investment and operation energy consumption; and thirdly, extra cold sources and heat sources are consumed, and the economic benefit is not obvious.
Disclosure of Invention
The application provides a retrieve equipment of flue gas moisture to in solving current correlation technique, it is big to flue gas moisture's recovery plant and technology investment cost and running energy consumption, and economic benefits is not showing significantly, and the equipment integration level is low, take up an area of the big scheduling problem of space.
The application provides a retrieve equipment of flue gas moisture includes: the system comprises a tower body, wherein a water collecting module, a cross flow blasting module and a heat dissipation mixed flow module are sequentially arranged in the tower body along the direction of damp and hot flue gas flow from bottom to top;
the water collecting module comprises a water collecting tank and a condensing element consisting of a plurality of parallel condensing plates; a channel is formed between every two adjacent condensing plates at intervals, so that the damp and hot smoke flows through the channel and continues upwards, and a smoke inlet and a smoke outlet of the channel are staggered in the horizontal direction and are positioned on different vertical lines; the lower part of the condensing plate is bent to form a concave part, the concave part extends from the head end to the tail end of the condensing plate, and the head end of the condensing plate is high and the tail end of the condensing plate is low; a water collecting tank is fixedly connected to the inner wall of the side face of the tower body opposite to the tail end of the condensing plate, the water collecting tank is positioned below the horizontal height of the tail end of the condensing plate, so that water gathered in the concave part on the condensing plate is collected and flows into the water collecting tank, and the water collecting tank is connected with a drain pipe leading to the outside of the tower body;
the heat dissipation mixed flow module comprises a plurality of heat dissipation elements with cuboid structures, and cold fluid runners and hot fluid runners which are mutually independent and have crossed flow directions are arranged in the heat dissipation elements; any adjacent cold fluid flow channel and hot fluid flow channel in each radiating element share a heat transfer plate wall as a heat exchange surface;
the two radiating elements form a radiating unit, cold fluid channel inlets of the two radiating elements of each radiating unit are adjacent and positioned in the middle of the radiating unit, hot fluid channel inlets are positioned at two sides of the radiating unit, and hot fluid channel inlets of the two adjacent radiating units are adjacent;
the transverse flow air blast module is positioned below the heat dissipation mixed flow module and comprises a transverse flow air blower and a dry cooling medium air inlet bellows communicated with the transverse flow air blower; the dry and cold medium air inlet bellows is horizontally and radially arranged in the tower, and the transverse flow blower is arranged on the side surface of the tower body; each set of cross flow air blast module is arranged below the middle of one heat dissipation unit, and the top of each dry and cold medium air inlet bellows is communicated with the inlets of two adjacent cold fluid channels of the heat dissipation unit.
Optionally, the condensation plate of the water collection module is a curved plate, and the curved surface includes a concave portion and a convex portion, so as to form a structure with a lateral surface in a horizontal S shape; the convex parts of the condensing plates are positioned above the concave parts of the adjacent condensing plates to form a channel for the bent flow of the wet and hot flue gas.
Optionally, the dry cooling medium inlet air box is internally provided with an inclined linear guide vane for guiding dry cooling air into the heat dissipation flow mixing module; and a V-shaped guide plate is connected below the outer bottom end of the dry and cold medium air inlet box, so that the damp and hot flue gas avoids the dry and cold medium air inlet box and flows upwards into a hot fluid channel inlet of the heat dissipation element.
Optionally, when the radiating elements of the radiating mixed-flow module are arranged in a rhombic manner, two adjacent rhombic radiating elements are attached to each other by edges; at least two opposite surfaces of six surfaces of the cuboid of the radiating element are square, and the square surface rotates by 45 degrees to form a rhombic surface; the heat radiating element is internally provided with a heat exchange surface parallel to the rhombic surface, the cuboid interior is divided into a cold fluid channel and a hot fluid channel, and the other four surfaces except the rhombic surface are divided into two parts; two rhombic surfaces are closed, one half of the other four surfaces are closed, and the other half of the other four surfaces are opened to form a rectangular tubular cold fluid channel and a rectangular tubular hot fluid channel which are mutually perpendicular.
Optionally, when the radiating elements of the radiating mixed-flow module are arranged in a rectangular manner, two adjacent radiating elements are arranged in parallel and are attached through surfaces; when the heat dissipation element is arranged in a rectangular manner, four side faces of a cuboid of the heat dissipation element are closed, and the cold fluid channel, the hot fluid channel inlet and the hot fluid channel outlet are respectively positioned on the bottom face and the top face of the cuboid; the top surface and the bottom surface of the radiating element are uniformly divided into four quadrants by the central line, and the top surface and the bottom surface are vertically the same with the four quadrants; the second quadrant and the fourth quadrant of the bottom surface of the radiating element and the first quadrant and the third quadrant of the top surface are openings, and the other quadrants are closed; the second quadrant of the bottom surface is communicated with the third quadrant of the top surface to form a cold fluid channel, and the fourth quadrant of the bottom surface is communicated with the first quadrant of the top surface to form a hot fluid channel; the hot and cold fluid channel and the hot fluid channel are divided into a vertical section and an inclined section from the inlet to the outlet, so that the gas enters from the vertical section vertically and upwards and flows out from the channel outlet of the top surface through the inclined section along the inclined direction.
Optionally, the periphery of the heat dissipation mixed flow module is provided with a frame with a cuboid structure, and the heat transfer plate wall of the heat dissipation element is detachably connected with the rest structures of the heat dissipation element.
Optionally, the cross flow blower module further comprises a multi-blade air adjusting baffle arranged between the dry and cold medium air inlet bellows and the cross flow blower or arranged outside an air inlet of the cross flow blower; the multi-blade wind adjusting baffle comprises a plurality of angle-adjustable rectangular blades with sealing pieces; a primary filter is arranged on the outer side of an air inlet of the cross flow blower, and a compressed air periodic purging device is arranged in the primary filter.
Optionally, two ends of the dry cooling medium air inlet bellows of the cross flow air blowing module are respectively connected with a cross flow air blower.
Optionally, an automatic online cleaning functional module is arranged above the outlet of the hot fluid channel of the heat dissipation mixed flow module; the automatic online cleaning functional module comprises a spray pipe arranged above the heat dissipation mixed flow module and an automatic flushing valve used for controlling spraying of the spray pipe; and a drain pipe of the water collecting tank is communicated with a process water tank outside the tower body, and the process water tank is communicated with the spray pipe through a flushing water pump and an automatic flushing valve.
Optionally, the system further comprises a rotational flow water collecting device arranged above the heat dissipation mixed flow module in the tower, wherein the rotational flow water collecting device is fixedly connected to the side wall of the tower top and comprises a rotational flow blade and a water collecting ring which surrounds the rotational flow blade for a circle and is fixedly connected with the rotational flow blade, and a water outlet is formed in the bottom of the water collecting ring; the swirl blades are arranged in a rotating way and have an elevation angle of 20-35 degrees and a radial angle of 10-25 degrees relative to the same plane.
Compared with the prior art, the equipment for recovering the flue gas moisture has the following beneficial effects:
1) Fully mixing cold and hot fluids: by the conception of cold and hot fluid channels of the radiating unit, the arrangement of two radiating elements of diamond arrangement and rectangular arrangement, the layout of the fluid channels of the radiating unit of 'hot-cold-hot' is ingeniously formed, and the arrangement of the transverse flow air blast module below is combined, so that cold and hot fluid channels at the outlet of the radiating mixed flow module are staggered, the heat is fully mixed and transferred, the mixing uniformity of the cold and hot fluids is ensured, and the recovery efficiency of the moisture in the damp and hot flue gas is enhanced.
2) The self heat source is utilized, and the operation energy consumption is low: the self latent heat of vaporization of saturated wet flue gas is used as a main heat source for reheating the flue gas, and no additional heat source is consumed. Through actual operation and calculation, the operation energy consumption of the system is about 0.5-0.6 kW/ten thousand Nm 3 And converting standard coal into 0.062-0.074kgce/h.
3) The water-saving benefit is remarkable: the condensed water of the system is collected independently, the water quality is good, the water quantity is stable, the condensed water can be used as the water replenishing of the system, the water saving quantity is 0.2-0.4 t/ten thousandNm 3 And converting standard coal by 0.052-0.103kgce/h, which can basically cover the added value of operating energy consumption.
4) Reduce waste water discharge, slow down equipment corrosion: through the recovery of flue gas moisture, can reduce the system evaporation capacity to slow down the concentration speed of corrosive medium such as chloride ion in the system, slow down equipment corrosion, the condensate water yield can replace the system moisturizing completely under partial flue gas condition, then can save high energy consumption high-cost waste water treatment process such as waste water desalination processing.
5) Integrated arrangement: this equipment will receive key device parts integration such as water module, crossing current blast air module and heat dissipation mixed flow module in integrated equipment, form tower structure, and damp and hot flue gas gets into from the bottom, and usable existing equipment tower body integrates the transformation, does not increase original equipment cross sectional dimension, does not increase extra equipment and takes up an area of.
6) Detachable modular structure: the detachable module structure, the heat dissipation mixed flow module and the heat dissipation elements in the heat dissipation mixed flow module can be flexibly arranged according to the field condition of equipment, and the detachable module can be flexibly taken out and replaced during the overhaul period of the equipment.
7) The light module structure: this equipment can adopt corrosion-resistant metal or non-metal material radiator unit, and the modularization equipment, module weight is little, and the loading and unloading of being convenient for reduces equipment load by a wide margin, applicable in the technological transformation of existing equipment.
8) Can be suitable for large-capacity flue gas treatment: the invention can be applied to 10-150 ten thousand meters 3 In the smoke treatment project of the/h gas volume, along with the increase of the smoke volume of the project, the energy-saving and water-saving benefits of the project are more remarkable.
In conclusion, the equipment has the advantages of compact structure, small occupied area, few auxiliary equipment, no need of additional heat source, remarkable water-saving benefit, low operation cost and the like. Meanwhile, the device and the method can adapt to the working conditions of flue gas with high flow rate, standard pollutant indexes and saturated or supersaturated humidity, are integrally installed at the top of the original desulfurizing tower (a spray tower and a wet electric tower), realize flue gas fog dissipation and condensation water lifting under the condition of not consuming additional heat sources, and can reduce the water supplement amount of the original system by 50-100%.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of an apparatus with heat dissipating elements in a diamond arrangement according to an embodiment of the present application;
FIG. 2 is a side view of the apparatus with heat dissipating elements of an embodiment of the present application arranged in a diamond shape;
FIG. 3 is a front view of the apparatus with the heat-dissipating components of an embodiment of the present application arranged in a rectangular configuration;
FIG. 4 is a side view of the apparatus with the heat-dissipating components of an embodiment of the present application arranged in a rectangular configuration;
FIG. 5 is a top view of the heat dissipating and flow mixing module according to the embodiment of the present application;
fig. 6 is a schematic front view of cold and hot fluid passages of the heat dissipation unit in a rhombic arrangement according to the embodiment of the present application;
fig. 7 is a schematic front view of cold and hot fluid passages of the heat dissipation unit in the rectangular arrangement according to the embodiment of the present application;
fig. 8 is a schematic perspective view illustrating cooling and heating fluid passages of the heat dissipation element in a diamond arrangement according to the embodiment of the present disclosure;
fig. 9 is a schematic perspective view of a cooling and heating fluid channel of a heat dissipation element in a rectangular arrangement according to an embodiment of the present application;
FIG. 10 is a schematic front structure view of a rotational flow water collecting device according to an embodiment of the present application;
FIG. 11 is a schematic top view of a cyclone water collecting device according to an embodiment of the present application;
FIG. 12 is a schematic perspective view of a rotational flow water collecting device according to an embodiment of the present application;
fig. 13 is a saturated air enthalpy-humidity graph.
In the figure, 1-tower body, 11-process water tank, 20-channel, 21-condensation plate, 211-concave part, 212-convex part, 22-water collecting tank, 23-water discharging pipe, 31-cross flow blower, 32-dry cold medium air inlet air box, 321-in-line guide vane, 322-V-shaped guide vane, 33-multi-vane air adjusting baffle, 40-radiating element, 401-square/rhombic surface, 41-cold fluid channel, 411-vertical section, 412-inclined section, 42-hot fluid channel, 43-heat exchange surface, 51-spray pipe, 52-automatic flushing valve, 53-flushing water pump, 61-rotational flow vane, 62-water collecting ring and 63-water discharging opening.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1 to 4, the apparatus for recovering flue gas moisture provided in the embodiment of the present application is a tower structure, and includes a tower body 1, and a water collecting module, a cross flow blowing module, and a heat dissipating and mixing module are sequentially disposed in the tower body along a wet and hot flue gas flow direction from bottom to top; in addition, as a preferred mode, the present embodiment further includes an automatic online cleaning function module located above the heat dissipation mixed flow module, and a rotational flow water receiving and mixed flow module located at the top of the tower above the automatic online cleaning function module.
The modules are specifically as follows:
A. water collecting module
The water collecting module comprises a water collecting tank 22 and a condensing element consisting of a plurality of parallel condensing plates 21; a channel is formed between every two adjacent condensing plates 21 at intervals, so that the wet and hot flue gas flows through the channel and continues upwards, and the flue gas inlet and the flue gas outlet of the channel are staggered in the horizontal direction and are positioned on different vertical lines; the lower part of the condensing plate 21 is bent to form a concave part 211, the concave part 211 extends from the head end to the tail end of the condensing plate 21, and the head end of the condensing plate is high and the tail end of the condensing plate is low; a water collecting tank 22 is fixedly connected to the inner wall of the side surface of the tower body opposite to the tail end of the condensing plate 21, the water collecting tank 22 is positioned below the horizontal height of the tail end of the condensing plate, so that water collected in the concave part 211 on the condensing plate 21 is collected and flows into the water collecting tank 22, and the water collecting tank 22 is connected with a drain pipe 23 leading to the outside of the tower body;
specifically, receive the water module and be used for collecting the bright water of heat dissipation mixed flow module condensation from the flue gas, provide the distribution of air current and cold and hot gas secondary simultaneously and mix. The water receiving module is provided with a channel for passing the heat supply smoke and a concave part 211 for guiding water. The water collecting module is arranged at the lower part of a dry cold medium air inlet bellows of the transverse flow air blowing module, is fully paved in the tower and is used for collecting condensed water falling onto the condensing plate 21 from the upper part after the smoke is condensed by the heat dissipation mixed flow module, and the collected condensed water flows to the concave part 211 and is conveyed to the process water tank 11 through the water collecting tank 22 for recycling. Specifically, the plurality of condensation plates 21 are arranged in parallel and staggered to form condensation elements, and the surfaces formed by the condensation elements have no gaps or intervals when viewed from the top, so that the condensed water can fall onto the condensation plates 21 when vertically falling from the top and then is collected in the concave parts 211; from the three-dimensional perspective, the condensation plates 21 are arranged in a staggered manner to form channels, and the smoke inlets and the smoke outlets of the channels are not on the same vertical line, so that condensed water cannot directly penetrate through the channels to fall below the water receiving modules when vertically falling from the upper side. By means of the arrangement of the condensation element, the condensation water above the water collection module is collected as much as possible and is collected into the water collection tank 22.
Preferably, in this embodiment, as shown in fig. 2 and 4, the condensation plate 21 of the water collection module is a curved plate, the curved surface includes a concave portion 211 and a convex portion 212, and the side surface is a horizontal S-shaped structure; the convex portions 212 of the condensing plates 21 are positioned above the concave portions 211 of the adjacent condensing plates to form the channels 20 for the curved flow of the hot and humid flue gas.
Specifically, the condensing element can adopt an S-shaped water collector, the S-shaped water collector comprises a plurality of S-shaped water collecting elements, the gap between every two adjacent S-shaped water collecting elements is used as a hot fluid channel 20, the cross section size of the hot fluid channel is unchanged along the airflow direction, the flow direction is smooth and has no sudden change, and the average flow speed of the flue gas in the hot fluid channel is less than 9m/S; the concave part 211 of the S-shaped plate collects the condensed water and merges to the water collecting tank 22; the proportion of the area of the hot fluid channel in the cross section area of the whole equipment is not less than 20 percent, and the flue gas resistance is less than 50Pa. The condensate water collector, i.e. the condensing element, is arranged to the water collection sump 22 at a gradient of 2%, and the collected condensate water is transported to the process water tank 11 through the water collection sump 22.
B. Heat dissipation mixed flow module
The heat dissipation mixed flow module comprises a plurality of heat dissipation elements 40 with cuboid structures, and cold fluid runners 41 and hot fluid runners 42 which are independent from each other and cross in flow direction are arranged in the heat dissipation elements 40; any adjacent cold fluid flow channel 41 and hot fluid flow channel 42 in each radiating element share a heat transfer plate wall as a heat exchange surface 43;
the two radiating elements 40 form a radiating unit, cold fluid channel inlets of the two radiating elements 40 of each radiating unit are adjacent and positioned in the middle of the radiating unit, hot fluid channel inlets are positioned at two sides of the radiating unit, and hot fluid channel inlets of the two adjacent radiating units are adjacent;
specifically, the heat dissipation mixed flow module is used for air-flue gas heat exchange and realizes primary staggered mixing of cold and hot fluids. The number and arrangement of the heat dissipating elements 40 of the heat dissipating mixed flow module can be arranged according to the heat exchanging conditions and the size of the equipment. As shown in the top view of the heat dissipating and flow mixing module of fig. 5, as seen from the top view, the surfaces of the plurality of heat dissipating elements 40 are attached to the front and the back, and radially spread over the cross section of the whole tower body, i.e. form a row of the top view; similarly, the heat dissipation elements are transversely paved, namely one row of the top view is formed, and the row and the column are combined to form the heat dissipation mixed flow module of the cuboid integral frame structure.
For the distribution arrangement of the heat dissipation units, as shown in fig. 6 and 7, when the heat dissipation elements 40 are transversely fully paved, two adjacent heat dissipation elements form one heat dissipation unit, and in each heat dissipation unit, 2 cold fluid channels 41 are located in the middle, and 2 hot fluid channels 42 are located on two sides. Meanwhile, as shown in fig. 1 and 3, when the heat dissipation units are arranged laterally, it can be seen from the front view that the lower inlets of the cold and hot fluid channel 41 and the hot fluid channel 42 are sequentially hot-cold-hot-cold-hot from left to right (taking 2 heat dissipation units as an example).
Preferably, a frame with a cuboid structure is arranged on the periphery of the heat dissipation mixed flow module, and the heat transfer plate wall of the heat dissipation element 40 is detachably connected with the rest structures of the heat dissipation element.
Specifically, the heat dissipation mixed flow module comprises a plurality of heat dissipation elements, and the plurality of heat dissipation elements are constrained by a frame; the heat dissipation element adopts a frame structure, as shown in fig. 1 to 5, a frame is arranged around the heat dissipation module for restraining and fixing the heat dissipation module and forming the heat dissipation element with a cuboid structure. The heat transfer plate walls, i.e. the heat exchange surfaces, of the heat dissipation elements are detachably connected with the surrounding frames, sealing surfaces and other structures, for example, in a plug-in manner, so that the heat dissipation elements can be removed and replaced from both sides (the frames only circumferentially constrain the heat dissipation elements, i.e. the heat dissipation elements can be removed or inserted from both sides of the frames as a whole). Every radiating element includes plate heat transfer plate (heat transfer siding), and the heat transfer plate can be corrosion-resistant metal or non-metallic material, for example can adopt PVC material radiating element, and module weight is little, and the loading and unloading of being convenient for reduces equipment load by a wide margin.
The heat dissipation element 40 is provided with a cold fluid channel 41 and a hot fluid channel 42 which are independent from each other, have crossed flow directions and share one heat transfer plate wall as a heat exchange surface; the cold fluid medium (dry cold air) provided by the cross-flow blower module flows out through the cold fluid flow channel 41; the hot fumes (hot humid fumes) flowing through the outside of the cross-flow blower module flow out of the hot fluid flow passage 42, and the cold fluid medium exchanges heat with the hot fumes through the heat transfer plate wall.
Specifically, the arrangement of the heat dissipating elements is divided into a diamond arrangement B-1 and a rectangular arrangement B-2.
B-1. Diamond arrangement
As shown in fig. 1 and 6, when the heat dissipation elements 40 of the heat dissipation mixed flow module are arranged in a rhombic manner, two adjacent rhombic heat dissipation elements are attached by edges; specifically, a plurality of heat dissipation elements are supported by the frame to form a diamond arrangement, i.e., any adjacent frame has a 90 ° included angle with the frame.
As shown in fig. 6 and 8, at least two opposite surfaces of the six surfaces of the rectangular body of the heat dissipating element are square, and a square surface 401 rotates by 45 ° to form a rhombic surface; the heat radiating element 40 is internally provided with a heat exchange surface 43 parallel to the rhombic surface 401, the cuboid interior is divided into a cold fluid channel 41 and a hot fluid channel 42, and the other four surfaces except the rhombic surface 401 are respectively divided into two parts; two rhombic surfaces are closed, one half of the other four surfaces are closed, and the other half of the other four surfaces are opened to form a rectangular tubular cold fluid channel 41 and a rectangular tubular hot fluid channel 42 which are mutually perpendicular.
B-2. Rectangular arrangement
As shown in fig. 7 and 9, when the heat dissipating elements 40 of the heat dissipating and flow mixing module are arranged in a rectangular manner, two adjacent heat dissipating elements 40 are arranged in parallel and are bonded by surfaces;
as shown in fig. 9, when the heat dissipation element is arranged in a rectangular shape, four sides of the rectangular parallelepiped of the heat dissipation element are closed, and the inlets and outlets of the cold fluid channel 41 and the hot fluid channel 42 are respectively located on the bottom surface and the top surface of the rectangular parallelepiped; the top surface and the bottom surface of the radiating element are uniformly divided into four quadrants by the central line, and the top surface and the bottom surface are divided into the four quadrants in the same way from top to bottom; the second quadrant and the fourth quadrant of the bottom surface of the radiating element and the first quadrant and the third quadrant of the top surface are openings, and the other quadrants are closed; the second quadrant of the bottom surface is communicated with the third quadrant of the top surface to form a cold fluid channel 41, and the fourth quadrant of the bottom surface is communicated with the first quadrant of the top surface to form a hot fluid channel 42; the hot-cold fluid passage 41 and the hot fluid passage 42 are divided into a vertical section 411 and an inclined section 412 in the inlet-to-outlet direction, so that the gas enters vertically upward from the vertical section and flows out from the passage outlet of the top surface in the inclined direction through the inclined section.
C. Cross flow blower module
The transverse flow air blast module is an adjustable transverse flow air blast module and is used for providing a large-flow cold fluid medium with adjustable air volume for the heat dissipation mixed flow module so as to exchange heat of hot smoke coming from the tower bottom and passing through the channel 20.
The cross flow blower module is positioned below the heat dissipation mixed flow module and comprises a cross flow blower 31 and a dry cooling medium air inlet air box 32 communicated with the cross flow blower 31; the dry and cold medium air inlet bellows 32 is horizontally and radially arranged in the tower, and the cross flow blower 31 is arranged on the side surface of the tower body; each set of cross flow air blast module is arranged below the middle of one heat dissipation unit, and the top of each dry cooling medium air inlet box 32 is communicated with the inlets of two adjacent cold fluid channels 41 of the heat dissipation unit.
Specifically, the cross flow blower 31 is used for supplying dry cooling medium gas to the heat dissipation mixed flow module, and dry cooling air is introduced by overcoming the resistance in the heat dissipation mixed flow module and the tower. The motor reducer of the cross flow blower 31 is disposed outside the cross flow blower module. The cross-flow blower 31 adopts a horizontal impeller shaft, and the impeller rotates in a vertical plane, and specifically includes an impeller, a variable frequency motor, a speed reducer, a bracket, and the like (for the prior art, details are not described here, but they do not affect understanding of the present disclosure by those skilled in the art).
The dry cooling medium air inlet box 32 adopts side air inlet and top air outlet, is arranged at the lower part of the heat dissipation mixed flow module and is connected with the cross flow blower 31, and the air outlet of the dry cooling medium air inlet box 32 is over against the direction of the air inlet at the bottom of the heat dissipation mixed flow module. As shown in fig. 1 and 3, when the heat dissipation units are arranged laterally, when viewed from the front, taking 2 heat dissipation units as an example, it can be seen that the arrangement of the lower inlets of the cold fluid channel 41 and the hot fluid channel 42 is sequentially from left to right. As also shown in fig. 6 and 7, one cross flow blower module corresponds to one heat dissipating unit, in particular, below the (cold-cold) channel of the heat dissipating unit (hot-cold-hot). The top of the dry cooling medium intake air box 32 is communicated with the inlet of the (cold-cold) channel, and dry cooling air can enter the cold fluid channel 41 through the dry cooling medium intake air box 32 after being blown in by the cross flow blower 31. The wet and hot flue gas avoids the dry and cold medium inlet air box 32 from the interior of the tower and directly enters the hot fluid channels 42 on both sides of each heat dissipation unit.
The air inlet section of the dry cooling medium air inlet bellows 32 is square or round; the side length or the diameter of the air inlet section of the dry and cold medium air inlet air box 32 is not less than V2 times of the length of the cold fluid flow channel 41 in the heat dissipation mixed flow module; when the air inlet section of the dry and cold medium air inlet air box 32 is square, the side length is corresponding to the air inlet section; the inlet section of the dry cooling medium inlet air box 32 is circular and corresponds to the diameter. The area of the dry and cold medium air inlet bellows vertical to the flow direction of the flue gas in the tower is not more than 50 percent of the inner section of the tower.
As a more specific embodiment, as shown in fig. 6 and 7, the relative position structure diagrams of the cooling and heating fluid passages and the cross flow blower module are respectively shown when the heat dissipation elements 40 are arranged in a diamond shape and in a rectangular shape. As can be seen in FIG. 6, the diamond arrangement has the dry refrigerant inlet plenum 32 located below the cold fluid passage 41 between the two diamonds. From the front view, the blank right-angled isosceles triangular area formed by the two rhombuses forming 90 degrees and the top of the dry cooling medium air inlet bellows can prevent dry cooling air from overflowing to enter the heat dissipation mixed flow module from the dry cooling medium air inlet bellows 32 by arranging a frame and a sealing plate on the side face of the module. As can be seen from fig. 7, in the rectangular arrangement, the dry and cold medium inlet air box 32 is also located below the 2 middle cold fluid channels 41 of one heat dissipation unit, and the damp and hot flue gas passes through the dry and cold medium inlet air box 32 from the tower directly upwards and enters the hot fluid channels 42 on both sides.
And the dry cooling medium inlet air bellow 32 is arranged along the radial direction, as shown in fig. 2 and 4, which are side views of the equipment, and the whole dry cooling medium inlet air bellow 32 is arranged along the radial direction as seen from the side view. The dry and cold medium air inlet bellows 32 are arranged in the direction of the short axis of the tower body (the circular tower body is in the axis direction, and the direction of the short axis of the tower body is the radial direction of the equipment) in a full-length mode to isolate the damp-heat saturated gas in the tower.
Preferably, one cross flow blower 31 is connected to each of both ends of the dry cooling medium intake air box 32 of the cross flow blower module.
Specifically, as shown in fig. 5, the dry cooling medium inlet air box 32 may be connected to a cross-flow blower 31 only at one end, i.e., at one side of the tower, so that dry cooling air or compressed air may be introduced into the air box through the tower side. As shown in fig. 2 and 4, a cross flow blower 31 may be connected to each of the two ends, that is, each two opposite cross flow blowers 31 share a set of dry refrigerant inlet air boxes for conveying dry refrigerant gas.
Preferably, an inclined linear guide vane 321 is arranged inside the dry cooling medium inlet air box 32 and is used for guiding dry cooling air into the heat dissipation flow mixing module; a V-shaped guide plate 322 is connected to the lower portion of the outer bottom end of the dry cooling medium air inlet box 32, so that the wet and hot flue gas avoids the dry cooling medium air inlet box 32 and flows upwards into the inlet of the hot fluid channel 42 of the heat dissipation element 40.
Specifically, as shown in fig. 2 or 4, a linear guide vane 321 is arranged inside the dry cooling medium inlet air box 32 along the inlet axis direction to guide and isolate the dry cooling medium gas on both sides. When the dry cooling medium inlet air box 32 is connected with a cross flow blower 31 on both sides and the air is fed on both sides, the dry cooling medium inlet air box 32 is divided into two halves by a central line in the inlet axis direction, and two halves of the central line are respectively provided with a linear guide vane 321 to form an inverted V shape which is axisymmetrical with the central line as an axis. The other linear guide vanes 321 distributed along the air inlet axis face the air inlet surface and incline towards the center line, so that the air can horizontally enter from two sides and bend upwards to enter the heat dissipation mixed flow module.
The V-shaped guide plate 322 is arranged on the windward side of the outside of the dry and cold medium air inlet air box 32, and the V-shaped guide plate can be replaced by a U-shaped guide plate after the V-shaped deformation according to actual conditions. Through the arrangement of the V-shaped guide plate, the wet and hot flue gas in the tower outside the air inlet bellows is guided to enable the wet and hot flue gas to directly go upwards from the tower, and the wet and hot flue gas is prevented from passing through the dry and cold medium air inlet bellows and entering hot fluid channels 42 on two sides of the heat dissipation unit, so that the isolation between the bottom of the dry and cold medium air inlet bellows 32 and the wet and hot saturated flue gas in the tower (in equipment) is realized. The uneven coefficient of the wind speed of the cross section of the guided dry and cold air and the wet and hot flue gas entering the heat dissipation mixed flow module is not more than 0.25.
Preferably, the cross flow blower module further comprises a multi-blade air adjusting baffle 33 arranged between the dry cooling medium inlet air box 32 and the cross flow blower 31 or arranged outside an air inlet of the cross flow blower 31; the multi-blade wind adjusting baffle 33 comprises a plurality of rectangular blades with sealing sheets and adjustable angles;
specifically, each set of cross flow blower module is provided with a multi-blade air adjusting baffle 33 which is arranged at the outlet or the inlet of the cross flow blower 31, each multi-blade air adjusting baffle 33 is composed of a plurality of blades with sealing sheets, the multi-blade air adjusting baffle is in a shutter structure, a single shaft drives a plurality of blade cranks to adjust the air volume, and an actuating mechanism adopts an electric actuating mechanism. The height of the blades of the multi-blade air adjusting baffle is 200-300mm, and the crank is an external crank.
Preferably, the cross flow blower module further includes a primary filter disposed outside an air inlet of the cross flow blower 31, and the primary filter is provided with a compressed air periodic purging device therein.
Specifically, the primary filter is arranged at an inlet of dry and cold air entering the tower and used for filtering floating objects such as dust, catkin, impurities and the like in the air. The resistance of the primary filter is less than 50Pa, and a compressed air regular purging device is arranged in the primary filter.
D. Automatic on-line cleaning functional module
Preferably, as shown in fig. 2 and 4, an automatic online cleaning function module is arranged above an outlet of the hot fluid channel 42 of the heat dissipation and flow mixing module; the automatic online cleaning function module comprises a spray pipe 51 arranged above the heat dissipation mixed flow module and an automatic flushing valve 52 used for controlling the spray of the spray pipe 51; the water discharge pipe 23 of the water collecting tank is communicated with the process water tank 11 outside the tower body, and the process water tank 11 is communicated with the spray pipe 51 through a flushing water pump 53 and an automatic flushing valve 52.
Specifically, the automatic online cleaning function module (element) has an automatic online cleaning function, and the automatic online cleaning function module includes a spray pipe 51 arranged above the heat dissipation mixed flow module, and an automatic flushing valve 52 for controlling the spray of the spray pipe 51. The spray pipe 51 is arranged on the upper part of the air outlet of the damp and hot saturated gas, namely hot fluid channel of the heat dissipation mixed flow module, the nozzle faces to the hot fluid outlet of the heat dissipation mixed flow module, the pressure of the nozzle is 0.1-0.2 MP, the spray form is a 90-degree solid cone, and the spray coverage rate is more than 200%. The automatic cleaning adopts an intermittent type flushing mode, the flushing frequency of each nozzle is 2 times/d, the flushing time of each time is 1min, and the flushing water adopts condensed water collected to the process water tank 11 from the heat dissipation mixed flow module.
E. Rotational flow water receiving and mixing module
Preferably, as shown in fig. 10 to 12, the equipment further includes a rotational flow water collecting device disposed above the heat dissipation and flow mixing module in the tower, the rotational flow water collecting device is fixedly connected to the side wall of the tower top, and includes a rotational flow blade 61 and a water collecting ring 62 surrounding the rotational flow blade for a circle and fixedly connected with the rotational flow blade, and a water outlet 63 is disposed at the bottom of the water collecting ring 62; the swirl vanes 61 are arranged in a rotating manner and have an elevation angle of 20-35 ° and a radial angle of 10-25 ° with respect to the same plane.
Specifically, the rotational flow water receiving and mixing module is arranged above the heat dissipation mixing module and used for collecting condensed liquid drops entrained along with the ascending airflow for secondary entrainment and simultaneously playing a role in secondary mixing of cold and hot fluids. As shown in fig. 10 to 12, the rotational flow water receiving and mixing module comprises a rotational flow water receiving device. The rotational flow water collecting device is provided with a plurality of rotational flow blades 61, and the rotational flow blades 61 are rotationally arranged and have an elevation angle of 20-35 degrees and a radial angle of 10-25 degrees relative to the same plane. The smoke flowing through the cyclone water collector obtains larger kinetic energy due to the reduction of the flow cross section, and the flow speed of the smoke is more than 8m/s. The cyclone blades rotate in the radial direction at an elevation angle of 20-35 degrees and a radial angle of 10-25 degrees, so that the flowing flue gas flows to rotate in the radial direction and generate air flow centrifugal force, the air flow collides with the inner wall of the tower body and forms a water film on the inner surface of the tower body, the water film can capture more water drops and dust particles, the captured water drops fall into the peripheral water collecting ring 62 under the action of gravity and are discharged out of the tower through the water discharge port 63, and the high-efficiency water collecting effect is achieved.
The cold and hot fluid flowing through the rotational flow water receiving device rises spirally, and is discharged after being further mixed in a chimney at the top of the tower body.
Description of the working process:
as shown in fig. 13, the graph is a saturated air enthalpy-humidity curve. The line A-B is a plume dilution curve of the mixture of saturated wet flue gas A at the outlet of the conventional wet tower and ambient dry and cold air B, and the line A-B is positioned below an enthalpy-humidity diagram and is a supersaturation region, so that a large amount of plume is generated.
The utility model provides a retrieve equipment of flue gas moisture installs heat dissipation mixed flow module, and heat dissipation mixed flow module divide into cold fluid (dry cold air) passageway and hot-fluid (damp and hot flue gas) runner, utilizes crossing current air-blast module's crossing current air-blast positive pressure to carry, introduces in the tower with environment cold air B (cold source) through crossing current air-blast module to carry out the heat transfer in the cold and hot fluid passageway of heat dissipation mixed flow module with the saturated damp and hot flue gas A (heat source) that upwards lets in from the bottom of the tower. In the heat dissipation and flow mixing module, the cold air B of the environment is heated into dry hot air B ', and the saturated damp hot flue gas A is condensed into damp cold flue gas A'. And then, the heated dry hot air B 'flows out of the tower top space and a tower top chimney after the heat dissipation mixed flow module, is mixed with the condensed wet cold air A', and is mixed into exhaust gas C (the dew point and the moisture content are both reduced relative to the point A, and the exhaust gas C is unsaturated gas). The gas C is discharged out of the tower body, and the plume dilution curve C-B of the discharged gas C mixed with the ambient cold air B outside the tower body is above the saturated air psychrometric chart (in an unsaturated zone), namely no plume is generated. The process that the saturated damp and hot flue gas A is condensed into damp and cold flue gas A' is accompanied with a large amount of condensed water, and the condensed water falls into a condensing plate of a water receiving module at the lower part along a hot fluid flow channel of the heat radiating element and is collected along with a water collecting groove to be discharged out of the tower.
Practical application example:
the flue gas parameters are as follows: 140000Nm 3 H (standard wet flue gas), wet treatment tower inlet (equipment inlet) flue gas temperature: 100 ℃, volume fraction of flue gas water vapor: 17 percent. The detailed design parameters of the apparatus are shown in table 1.
Table 1 detailed design parameters of the examples
In the embodiment, fog dissipation can be realized under the working condition of 15 ℃ and 70% relative humidity, the amount of condensed water is 3.673t/h and is 3.167t/h larger than the amount of evaporated water of the original system, a water-saving effect of 100% can be realized, additional water replenishing is not needed by the system, zero discharge of wastewater can be realized on the basis of conventional sewage treatment, and desalting treatment is not needed.
TABLE 2 Performance indicators Table
| Item | Unit of | Data of | Remarks to note |
| Amount of flue gas to be treated | Nm 3 /h | 140000 | |
| Recovery of waste heat | kj/h | 9494400 | |
| Fog point disappears | / | The ambient temperature is 15 ℃, and the relative humidity is 70% | |
| Recovery of condensed water | kg/h | 3673.44 | |
| Amount of evaporated water of original system | kg/h | 3167.26 | |
| Replacement system water replenishment proportion | (％) | 100 | |
| Energy consumption for system operation | kWh | 8.4 | |
| Zero-discharge treatment water quantity of waste water such as concentration and evaporation | kg/h | 0 |
The present application has been described in detail with reference to particular embodiments and illustrative examples, but the description is not intended to be construed as limiting the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (10)
1. A device for recovering flue gas moisture comprises a tower body, and is characterized in that a water collecting module, a transverse flow blasting module and a heat dissipation mixed flow module are sequentially arranged in the tower body along the direction of wet and hot flue gas flow from bottom to top;
the water collecting module comprises a water collecting tank and a condensing element consisting of a plurality of parallel condensing plates; a channel is formed between every two adjacent condensing plates at intervals, so that the damp and hot smoke flows through the channel and continues upwards, and the smoke inlet and the smoke outlet of the channel are staggered in the horizontal direction and are positioned on different vertical lines; the lower part of the condensing plate is bent to form a concave part, the concave part extends from the head end to the tail end of the condensing plate, and the head end of the condensing plate is high and the tail end of the condensing plate is low; a water collecting tank is fixedly connected to the inner wall of the side face of the tower body opposite to the tail end of the condensing plate, the water collecting tank is positioned below the horizontal height of the tail end of the condensing plate, so that water gathered in the concave part on the condensing plate is collected and flows into the water collecting tank, and the water collecting tank is connected with a drain pipe leading to the outside of the tower body;
the heat dissipation mixed flow module comprises a plurality of heat dissipation elements with cuboid structures, and cold fluid runners and hot fluid runners which are mutually independent and have crossed flow directions are arranged in the heat dissipation elements; any adjacent cold fluid flow channel and hot fluid flow channel in each radiating element share a heat transfer plate wall as a heat exchange surface;
the two radiating elements form a radiating unit, cold fluid channel inlets of the two radiating elements of each radiating unit are adjacent and positioned in the middle of the radiating unit, hot fluid channel inlets are positioned at two sides of the radiating unit, and hot fluid channel inlets of the two adjacent radiating units are adjacent;
the transverse flow air blast module is positioned below the heat dissipation mixed flow module and comprises a transverse flow air blower and a dry cooling medium air inlet bellows communicated with the transverse flow air blower; the dry and cold medium air inlet bellows is horizontally and radially arranged in the tower, and the transverse flow blower is arranged on the side surface of the tower body; each set of cross flow air blast module is arranged below the middle of one heat dissipation unit, and the top of each dry and cold medium air inlet bellows is communicated with the inlets of two adjacent cold fluid channels of the heat dissipation unit.
2. The apparatus for recovering flue gas moisture according to claim 1, wherein the condensation plate of the water collection module is a curved plate, and the curved plate comprises a concave part and a convex part to form a structure with a horizontal S-shaped side surface; the convex parts of the condensing plates are positioned above the concave parts of the adjacent condensing plates to form a channel for the bent flow of the wet and hot flue gas.
3. The equipment for recovering the moisture in the flue gas as claimed in claim 1, wherein an inclined linear guide vane is arranged inside the dry and cold medium inlet air box and used for guiding dry and cold air into the heat dissipation and flow mixing module;
and a V-shaped guide plate is connected below the outer bottom end of the dry and cold medium air inlet box, so that the damp and hot flue gas avoids the dry and cold medium air inlet box and flows upwards into a hot fluid channel inlet of the heat dissipation element.
4. The equipment for recovering flue gas moisture according to claim 1, wherein when the horizontal arrangement mode of the heat dissipation elements of the heat dissipation mixed flow module is rhombic, two adjacent rhombic heat dissipation elements are attached through edges;
at least two opposite surfaces of the six surfaces of the cuboid of the heat dissipation element are square, and the square surface rotates by 45 degrees to form a rhombic surface; the heat radiating element is internally provided with a heat exchange surface parallel to the rhombic surface, the cuboid interior is divided into a cold fluid channel and a hot fluid channel, and the other four surfaces except the rhombic surface are divided into two parts; two rhombic surfaces are closed, one half of the other four surfaces are closed, and the other half of the other four surfaces are opened to form a rectangular tubular cold fluid channel and a rectangular tubular hot fluid channel which are mutually perpendicular.
5. The equipment for recovering the moisture in the flue gas according to claim 1, wherein when the horizontal arrangement mode of the heat dissipation elements of the heat dissipation mixed flow module is rectangular arrangement, two adjacent heat dissipation elements are arranged in parallel and are attached through surfaces;
when the heat dissipation element is arranged in a rectangular manner, four side faces of a cuboid of the heat dissipation element are closed, and an inlet and an outlet of a cold fluid channel and an inlet and an outlet of a hot fluid channel are respectively positioned on the bottom face and the top face of the cuboid; the top surface and the bottom surface of the radiating element are uniformly divided into four quadrants by the central line, and the top surface and the bottom surface are divided into the four quadrants in the same way from top to bottom;
the second quadrant and the fourth quadrant of the bottom surface of the radiating element and the first quadrant and the third quadrant of the top surface are openings, and the other quadrants are closed; the second quadrant of the bottom surface is communicated with the third quadrant of the top surface to form a cold fluid channel, and the fourth quadrant of the bottom surface is communicated with the first quadrant of the top surface to form a hot fluid channel;
the hot and cold fluid channel and the hot fluid channel are divided into a vertical section and an inclined section from the inlet to the outlet, so that the gas enters from the vertical section vertically and upwards and flows out from the channel outlet of the top surface through the inclined section along the inclined direction.
6. The apparatus for recovering flue gas moisture according to claim 1, wherein the periphery of the heat dissipation flow mixing module is provided with a frame with a cuboid structure, and the heat transfer plate wall of the heat dissipation element is detachably connected with the rest structures of the heat dissipation element.
7. The apparatus for recovering flue gas moisture according to claim 1, wherein the cross-flow blower module further comprises a multi-blade air adjusting baffle plate arranged between the dry cooling medium air inlet box and the cross-flow blower or arranged outside the air inlet of the cross-flow blower; the multi-blade wind adjusting baffle comprises a plurality of angle-adjustable rectangular blades with sealing pieces;
a primary filter is arranged on the outer side of an air inlet of the cross flow blower, and a compressed air periodic purging device is arranged in the primary filter.
8. The apparatus for recovering flue gas moisture according to claim 1, wherein two ends of the dry cooling medium inlet wind box of the cross flow blower module are respectively connected with a cross flow blower.
9. The equipment for recovering the moisture in the flue gas as claimed in claim 1, wherein an automatic online cleaning function module is arranged above the outlet of the hot fluid channel of the heat dissipation mixed flow module; the automatic online cleaning functional module comprises a spray pipe arranged above the heat dissipation mixed flow module and an automatic flushing valve used for controlling spraying of the spray pipe;
and a drain pipe of the water collecting tank is communicated with a process water tank outside the tower body, and the process water tank is communicated with the spray pipe through a flushing water pump and an automatic flushing valve.
10. The equipment for recovering the moisture in the flue gas according to claim 1, further comprising a rotational flow water collecting device arranged above the heat dissipation and flow mixing module in the tower, wherein the rotational flow water collecting device is fixedly connected to the side wall of the top of the tower and comprises rotational flow blades and a water collecting ring which surrounds the rotational flow blades for a circle and is fixedly connected with the rotational flow blades, and a water outlet is formed in the bottom of the water collecting ring; the swirl blades are arranged in a rotating way and have an elevation angle of 20-35 degrees and a radial angle of 10-25 degrees relative to the same plane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210809211.4A CN115164225A (en) | 2022-07-11 | 2022-07-11 | Equipment for recovering flue gas moisture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888994A (en) * | 2024-03-15 | 2024-04-16 | 福建金龙腾动力机械有限公司 | Cold-resistant mute type container internal combustion generating set |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888994A (en) * | 2024-03-15 | 2024-04-16 | 福建金龙腾动力机械有限公司 | Cold-resistant mute type container internal combustion generating set |
| CN117888994B (en) * | 2024-03-15 | 2024-06-04 | 福建金龙腾动力机械有限公司 | Cold-resistant mute type container internal combustion generating set |
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