CN113218207A - Dry-wet mixed flow cooling tower - Google Patents
Dry-wet mixed flow cooling tower Download PDFInfo
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- CN113218207A CN113218207A CN202110517745.5A CN202110517745A CN113218207A CN 113218207 A CN113218207 A CN 113218207A CN 202110517745 A CN202110517745 A CN 202110517745A CN 113218207 A CN113218207 A CN 113218207A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/16—Arrangements for preventing condensation, precipitation or mist formation, outside the cooler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a cooling tower of dry-wet mixed flow, comprising: the system comprises a tower body, a dry cooling unit and a wet cooling unit; a cavity shell of a dry cooling area and a wet cooling area is arranged inside the tower body; the outside of the tower body is provided with a vent and an exhaust port; the dry cooling unit is positioned in the dry cooling area and is provided with a primary hot water inlet and a primary cold water outlet, and the primary hot water inlet is externally connected with a hot water pipeline; the wet cooling unit is positioned in the wet cooling area and is provided with a secondary hot water inlet and a secondary cold water outlet; the secondary hot water inlet is communicated with the primary cold water outlet, and the secondary cold water outlet is externally connected with a cold water pipeline. According to the invention, the dry cooling unit and the wet cooling unit are matched to cool the water to be cooled for multiple times, so that the heat transferred to the cooling water by the water to be cooled through heat exchange is greatly reduced, the generation of water vapor is greatly reduced, and the generation of white mist is effectively prevented. In addition, the cooling water loss in the wet cooling unit is reduced, and the frequency of supplementing the cooling water is obviously reduced.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a cooling tower for dry-wet mixed flow.
Background
The cooling tower is used for carrying the preheated circulating water to exchange heat with the cooling medium in the tower and transmitting the heat of the water to the cooling medium, thereby realizing the purpose of cooling the circulating water. Heat exchange includes convective heat transfer and radiative heat transfer.
In the prior art, the cooling medium of a common closed cooling tower is a cooling process by heat exchange between a fan and spray water, so that the cooling effect is achieved. When the temperature of the medium to be cooled is too high, a large amount of water vapor is generated when the spray water is sprayed on the surface of the coil pipe and is discharged into the outside air by the fan to form white mist, so that the spray water loss is large, and the frequency of supplementing the spray water is high; in addition, the formation of a large amount of white fog can cause fog to be aggravated, which is not in line with national environmental protection regulations, and the large amount of white fog easily causes misunderstanding of surrounding residents, thereby affecting the image of client enterprises.
Therefore, there is a need in the art for a cooling tower that is simple in configuration, has improved cooling efficiency, and is effective in reducing the generation of white mist.
Disclosure of Invention
In order to solve the technical problems, the invention provides a cooling tower which is simple in configuration, greatly improves the cooling efficiency and can effectively reduce the generation of white mist.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a cooling tower for a combined dry and wet stream comprising: the system comprises a tower body, a dry cooling unit and a wet cooling unit; the tower body is a cavity shell with a dry cooling area and a wet cooling area arranged inside; the tower body is provided with a ventilation opening and an exhaust opening; the dry cooling unit is positioned in the dry cooling area and is provided with a primary hot water inlet and a primary cold water outlet, and the primary hot water inlet is externally connected with a hot water pipeline; the wet cooling unit is positioned in the wet cooling area and is provided with a secondary hot water inlet and a secondary cold water outlet; the secondary hot water inlet is communicated with the primary cold water outlet, and the secondary cold water outlet is externally connected with a cold water pipeline.
The beneficial effect of adopting above-mentioned technical scheme is: the problem that white fog is generated more, the loss of spray water is larger and the image of a client is influenced in a common closed cooling tower which performs heat exchange by a fan and spray water in the prior art is fully considered, firstly, the dry cooling unit and the wet cooling unit are matched to cool water to be cooled for multiple times, and especially the water to be cooled enters the wet cooling unit through the dry cooling unit, so that the temperature difference between the water to be cooled and cooling water during secondary cooling of the wet cooling unit can be effectively reduced, namely, the heat transferred to the cooling water by the cooling water through heat exchange is greatly reduced, the generation of water vapor can be greatly reduced, the occurrence of the white fog is effectively prevented, and the panic emotion of surrounding residents is avoided. In addition, because of the great reduction of the water vapor, the cooling water loss in the wet cooling unit is reduced, thereby significantly reducing the frequency of replenishing the cooling water. The advantages of saving water resources and energy are obvious.
As a further improvement of the technical solution of the present invention, the air outlet is disposed at the top of the tower body, the dry cooling area is adjacent to the air outlet, and the wet cooling area is disposed below the dry cooling area.
The beneficial effect of adopting above-mentioned technical scheme is: the air outlet is arranged at the top of the tower body, and the dry cooling area is close to the air outlet, so that dry hot gas generated after dry cooling is discharged as soon as possible when the dry cooling is carried out for the first time is discharged in time, a large temperature difference between air in the dry cooling area and water to be cooled in the dry cooling unit is kept, and high heat exchange efficiency is kept all the time.
As a further improvement of the technical scheme of the invention, the dry cooling unit comprises a fin cooler and a fan; the water inlet end of the fin cooler is the primary hot water inlet, and the water outlet end of the fin cooler is the primary cold water outlet; the fan is arranged at the air outlet.
The beneficial effect of adopting above-mentioned technical scheme is: due to the arrangement of the fin cooler, the functions of enlarging the heat dissipation area and effectively strengthening heat transfer of the fins are fully utilized, and the heat exchange efficiency of the dry cooling unit is further improved; in addition, the fan is arranged at the exhaust port, and dry hot gas in a dry cooling area can be rapidly gathered to the exhaust port, so that the exhaust rate of the dry hot gas is increased.
As a further improvement of the technical scheme of the invention, the wet cooling unit comprises a cooling pipe, a spray head, a spray pipeline assembly, a liquid pumping unit and a spray groove, wherein the spray pipeline assembly is communicated with the spray groove, the liquid pumping unit and the spray head and is constructed into an open cooling loop; the spraying direction of the spray head faces to the cooling pipe, the water inlet end of the cooling pipe is the secondary hot water inlet, and the water outlet end of the cooling pipe is the secondary cold water outlet.
The beneficial effect of adopting above-mentioned technical scheme is: the cooling pipe, the spray head, the spray pipeline assembly, the liquid pumping unit and the spray groove are constructed into an open cooling loop, the cooling is carried out in a spray mode, the rapid cooling can be realized, and the equipment cost and the later maintenance cost are lower.
As a further improvement of the technical scheme of the invention, the wet cooling unit further comprises an exhaust fan, an air inlet communicated with the wet cooling area is further arranged outside the tower body, and an air outlet port of the exhaust fan is communicated with the air inlet and used for extracting normal-temperature gas from the outside of the tower body and conveying the gas to the wet cooling area.
The beneficial effect of adopting above-mentioned technical scheme is: the exhaust fan is arranged to provide a large amount of dry and cold air for implementing cooling, on one hand, the mixing of the dry and cold air and the humid and hot air is equivalent to the dilution of water vapor in the humid and hot air, so that the moisture content of the humid and hot air is reduced, unsaturated gas is formed, and the generation of white mist can be effectively reduced; on the other hand, the dry and cold air can reduce the temperature of the damp and hot air, promote the partial condensation and condensation of the water vapor in the damp and hot air, further reduce the moisture content of the damp and hot air, and have more obvious effect of reducing the white mist.
As a further improvement of the technical scheme of the invention, a condensation plate is arranged between the dry cooling unit and the wet cooling unit, the condensation plate comprises a metal hollow plate and a water-absorbing and air-permeable block, and the water-absorbing and air-permeable block is clamped between the two layers of metal hollow plates.
The beneficial effect of adopting above-mentioned technical scheme is: the condensing plate is arranged between the dry cooling unit and the wet cooling unit, so that water vapor and small droplets in the wet hot air can be blocked and condensed in the discharging process of the wet hot air, the moisture content of the wet hot air is further reduced, and the generation of white mist is further effectively inhibited.
As a further improvement of the technical scheme of the invention, the water absorption and ventilation block comprises more than two layers of honeycomb plates, and the honeycomb holes of the two adjacent layers of honeycomb plates are staggered.
The beneficial effect of adopting above-mentioned technical scheme is: introduce the honeycomb panel in the ventilative piece of absorbing water, make full use of the ventilative characteristic of honeycomb holes, simultaneously, the dislocation set of honeycomb holes is convenient for prolong the route that passes through of damp and hot air in the ventilative piece of absorbing water, increases with the lateral wall area of contact of honeycomb holes to promote the condensation rate to the interception rate of droplet and vapor, with the moisture content of further reducing damp and hot air again, further strengthen the suppression effect to the white fog production.
As a further improvement of the technical solution of the present invention, the cooling tower further includes a defogging cap disposed above the exhaust port in a direction in which the opening faces downward.
The beneficial effect of adopting above-mentioned technical scheme is: the arrangement of the defogging cap can prolong the passing path of the damp and hot air at the air outlet, thereby carrying out secondary blocking and condensation on small liquid drops and water vapor in the damp and hot air.
As still further improvement of the technical scheme of the invention, the demisting cap comprises: the annular drum assembly comprises a plurality of annular drums with the same shape and proportional sizes, the annular drums with the same shape and proportional sizes are concentrically and fixedly connected to the inner bottom surface, far away from the opening, of the cap shell, the annular wave drums are concentrically buckled with the annular drums, a gap exists between one end, far away from the inner bottom surface of the cap shell, of each annular drum and a bottom wave trough of each annular wave drum, and a drain hole is formed in the bottom wave trough of each annular wave drum; a gap is formed between the top wave crest of the annular wave cylinder and the bottom surface inside the cap shell.
The beneficial effect of adopting above-mentioned technical scheme is: firstly, the annular cylinder assembly and the annular wave cylinder are matched to construct a wave-shaped discharge channel for the damp and hot air, the flowing direction is continuously changed in the discharging process of the damp and hot air, and the contact probability of the damp and hot air and the side wall of the discharge channel is increased, so that more opportunities are provided for the condensation of water vapor and small liquid drops in the damp and hot air, the blocking rate of the water vapor and the small liquid drops is increased, the moisture content of the damp and hot air is further reduced, and the generation of white mist is further prevented; in addition, the bottom trough of the annular wave cylinder is provided with a drain hole, so that condensed water can be conveniently drained, and a wavy exhaust channel for draining damp and hot air is prevented from being blocked by the accumulated condensed water.
As a further improvement of the technical scheme of the invention, an inner rolling edge is arranged at one end of the inner ring of the annular wave cylinder, which is close to the inner bottom surface of the cap shell, a plurality of insertion grooves are circumferentially arranged on the surface of the inner rolling edge, which faces the inner bottom surface of the cap shell, an insertion column matched with the insertion grooves is arranged on the inner bottom surface of the cap shell, and the annular wave cylinder is connected with the cap shell in an insertion manner through the insertion grooves and the insertion columns.
The beneficial effect of adopting above-mentioned technical scheme is: the introduction of the inner-rolling edge and the arrangement of the inserting groove and the inserting column can realize the quick fixation of the annular wave cylinder and the cap shell, and are convenient to assemble and disassemble; and a stable limiting support is provided for fixing the defogging cap and the exhaust port, so that the humid and hot gas is ensured to directly and smoothly enter the defogging cap after being exhausted from the exhaust port.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view of a cooling tower of the present invention;
FIG. 2 is a schematic illustration of a cooling tower of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at I;
FIG. 4 is an enlarged partial view taken at II in FIG. 2;
the corresponding part names indicated by the numbers in the figures are as follows:
a tower body 1; a dry cooling region 11; a wet cooling zone 12; a vent 13; an exhaust port 14; an air inlet 15; a dry cooling unit 2; the fin cooler 21; a primary hot water inlet 211; a primary cold water outlet 212; a fan 22; a wet cooling unit 3; a cooling pipe 31; a secondary hot water inlet 311; a secondary cold water outlet 312; a spray head 32; a spray line assembly 33; a liquid pumping unit 34; a spray tank 35; an exhaust fan 36; a condensation plate 4; a metal stencil 41; a water-absorbing air-permeable block 42; a honeycomb panel 421; a defogging cap 5; a cap shell 51; the plug-in posts 511; an annular cartridge assembly 52; an annular wave cylinder 53; a bottom valley 531; a drain hole 5311; a top peak 532; inner wrap border 533; a docking slot 534.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In order to realize the purpose of the invention, the technical scheme provided by the invention is as follows:
in some embodiments of the present invention, as shown in fig. 1 and 2, a cooling tower for dry and wet mixed streams is disclosed, comprising: the system comprises a tower body 1, a dry cooling unit 2 and a wet cooling unit 3; the tower body 1 is a cavity shell with a dry cooling area 11 and a wet cooling area 12 arranged inside; the tower body 1 is provided with a ventilation opening 13 and an exhaust opening 14; the dry cooling unit 2 is positioned in the dry cooling area 11, the dry cooling unit 2 is provided with a primary hot water inlet 211 and a primary cold water outlet 212, and the primary hot water inlet 211 is externally connected with a hot water pipeline; the wet cooling unit 3 is positioned in the wet cooling area 12, and the wet cooling unit 3 is provided with a secondary hot water inlet 311 and a secondary cold water outlet 312; the secondary hot water inlet 311 is communicated with the primary cold water outlet 212, and the secondary cold water outlet 312 is externally connected with a cold water pipeline.
The beneficial effect of adopting above-mentioned technical scheme is: the problem that white fog is generated more, the loss of spray water is larger and the image of a client is influenced in a common closed cooling tower which performs heat exchange by a fan and spray water in the prior art is fully considered, firstly, the dry cooling unit and the wet cooling unit are matched to cool water to be cooled for multiple times, and especially the water to be cooled enters the wet cooling unit through the dry cooling unit, so that the temperature difference between the water to be cooled and cooling water during secondary cooling of the wet cooling unit can be effectively reduced, namely, the heat transferred to the cooling water by the cooling water through heat exchange is greatly reduced, the generation of water vapor can be greatly reduced, the occurrence of the white fog is effectively prevented, and the panic emotion of surrounding residents is avoided. In addition, because of the great reduction of the water vapor, the cooling water loss in the wet cooling unit is reduced, thereby significantly reducing the frequency of replenishing the cooling water. The advantages of saving water resources and energy are obvious.
In other embodiments of the invention, as shown in fig. 2, the air outlet 14 is arranged at the top of the tower 1, the dry cooling zone 11 is located close to the air outlet 14, and the wet cooling zone 12 is arranged below the dry cooling zone 11.
The beneficial effect of adopting above-mentioned technical scheme is: the air outlet is arranged at the top of the tower body, and the dry cooling area is close to the air outlet, so that dry hot gas generated after dry cooling is discharged as soon as possible when the dry cooling is carried out for the first time is discharged in time, a large temperature difference between air in the dry cooling area and water to be cooled in the dry cooling unit is kept, and high heat exchange efficiency is kept all the time.
In other embodiments of the present invention, as shown in fig. 1 and 2, the dry cooling unit 2 includes a fin cooler 21 and a fan 22; the water inlet end of the fin cooler 21 is a primary hot water inlet 211, and the water outlet end of the fin cooler 21 is a primary cold water outlet 212; the fan 22 is provided at the exhaust port 14.
The beneficial effect of adopting above-mentioned technical scheme is: due to the arrangement of the fin cooler, the functions of enlarging the heat dissipation area and effectively strengthening heat transfer of the fins are fully utilized, and the heat exchange efficiency of the dry cooling unit is further improved; in addition, the fan is arranged at the exhaust port, and dry hot gas in a dry cooling area can be rapidly gathered to the exhaust port, so that the exhaust rate of the dry hot gas is increased.
In other embodiments of the present invention, as shown in fig. 1 and 2, the wet cooling unit 3 includes a cooling pipe 31, a spray head 32, a spray pipe assembly 33, a liquid pumping unit 34 and a spray tank 35, wherein the spray pipe assembly 33 is communicated with the spray tank 35, the liquid pumping unit 34 and the spray head 32 and is configured as an open cooling loop; the spray direction of the spray head 32 faces the cooling pipe 31, the water inlet end of the cooling pipe 31 is a secondary hot water inlet 311, and the water outlet end of the cooling pipe 31 is a secondary cold water outlet 312.
The beneficial effect of adopting above-mentioned technical scheme is: the cooling pipe, the spray head, the spray pipeline assembly, the liquid pumping unit and the spray groove are constructed into an open cooling loop, the cooling is carried out in a spray mode, the rapid cooling can be realized, and the equipment cost and the later maintenance cost are lower.
In other embodiments of the present invention, as shown in fig. 2, the wet cooling unit 3 further includes an exhaust fan 36, the tower body 1 is further provided with an air inlet 15 leading to the wet cooling area 12, and an air outlet of the exhaust fan 36 is communicated with the air inlet 15 for extracting the normal temperature gas from the outside of the tower body 1 and conveying the normal temperature gas to the wet cooling area 12.
The beneficial effect of adopting above-mentioned technical scheme is: the exhaust fan is arranged to provide a large amount of dry and cold air for implementing cooling, on one hand, the mixing of the dry and cold air and the humid and hot air is equivalent to the dilution of water vapor in the humid and hot air, so that the moisture content of the humid and hot air is reduced, unsaturated gas is formed, and the generation of white mist can be effectively reduced; on the other hand, the dry and cold air can reduce the temperature of the damp and hot air, promote the partial condensation and condensation of the water vapor in the damp and hot air, further reduce the moisture content of the damp and hot air, and have more obvious effect of reducing the white mist.
In other embodiments of the present invention, as shown in fig. 2, a condensation plate 4 is disposed between the dry cooling unit 2 and the wet cooling unit 3, the condensation plate 4 includes a metal hollow plate 41 and a water-absorbing and air-permeable block 42, and the water-absorbing and air-permeable block 42 is sandwiched between the two metal hollow plates 41.
The beneficial effect of adopting above-mentioned technical scheme is: the condensing plate is arranged between the dry cooling unit and the wet cooling unit, so that water vapor and small droplets in the wet hot air can be blocked and condensed in the discharging process of the wet hot air, the moisture content of the wet hot air is further reduced, and the generation of white mist is further effectively inhibited.
In other embodiments of the present invention, as shown in fig. 4, the water absorbing and air permeable block 42 comprises more than two layers of honeycomb plates 421, and the honeycomb holes of two adjacent layers of honeycomb plates 421 are offset from each other.
The beneficial effect of adopting above-mentioned technical scheme is: introduce the honeycomb panel in the ventilative piece of absorbing water, make full use of the ventilative characteristic of honeycomb holes, simultaneously, the dislocation set of honeycomb holes is convenient for prolong the route that passes through of damp and hot air in the ventilative piece of absorbing water, increases with the lateral wall area of contact of honeycomb holes to promote the condensation rate to the interception rate of droplet and vapor, with the moisture content of further reducing damp and hot air again, further strengthen the suppression effect to the white fog production.
In other embodiments of the present invention, as shown in fig. 2, the cooling tower further comprises a demisting cap 5, and the demisting cap 5 is disposed above the exhaust port 14 in a direction with an opening facing downward.
The beneficial effect of adopting above-mentioned technical scheme is: the arrangement of the defogging cap can prolong the passing path of the damp and hot air at the air outlet, thereby carrying out secondary blocking and condensation on small liquid drops and water vapor in the damp and hot air.
In other embodiments of the present invention, as shown in fig. 2 and 3, the defogging cap 5 includes: the cap shell 51, the annular cylinder assembly 52 and the annular wave cylinder 53, wherein the annular cylinder assembly 52 comprises a plurality of annular cylinders with the same shape and the proportional size, the plurality of annular cylinders with the same shape and the proportional size are concentrically and fixedly connected to the inner bottom surface, far away from the opening, of the cap shell 51, the annular wave cylinder 53 is concentrically buckled with the annular cylinders, a gap exists between one end, far away from the inner bottom surface of the cap shell 51, of the annular cylinder and the bottom wave trough 531 of the annular wave cylinder 53, and the bottom wave trough 531 of the annular wave cylinder 53 is provided with a water drainage hole 5311; a gap exists between the top wave peak 532 of the annular wave cylinder 53 and the bottom surface of the interior of the cap shell 51.
The beneficial effect of adopting above-mentioned technical scheme is: firstly, the annular cylinder assembly and the annular wave cylinder are matched to construct a wave-shaped discharge channel for the damp and hot air, the flowing direction is continuously changed in the discharging process of the damp and hot air, and the contact probability of the damp and hot air and the side wall of the discharge channel is increased, so that more opportunities are provided for the condensation of water vapor and small liquid drops in the damp and hot air, the blocking rate of the water vapor and the small liquid drops is increased, the moisture content of the damp and hot air is further reduced, and the generation of white mist is further prevented; in addition, the bottom trough of the annular wave cylinder is provided with a drain hole, so that condensed water can be conveniently drained, and a wavy exhaust channel for draining damp and hot air is prevented from being blocked by the accumulated condensed water.
In other embodiments of the present invention, as shown in fig. 2 and 3, an inner rolling edge 533 is disposed at one end of the inner ring of the annular wave cylinder 53 close to the inner bottom surface of the cap shell 51, a plurality of insertion grooves 534 are circumferentially disposed on a surface of the inner rolling edge 533 facing the inner bottom surface of the cap shell 51, an insertion column 511 adapted to the insertion grooves 534 is disposed on the inner bottom surface of the cap shell 51, and the annular wave cylinder 53 and the cap shell 51 are connected by the insertion grooves 534 and the insertion columns 511.
The beneficial effect of adopting above-mentioned technical scheme is: the introduction of the inner-rolling edge and the arrangement of the inserting groove and the inserting column can realize the quick fixation of the annular wave cylinder and the cap shell, and are convenient to assemble and disassemble; and a stable limiting support is provided for fixing the defogging cap and the exhaust port, so that the humid and hot gas is ensured to directly and smoothly enter the defogging cap after being exhausted from the exhaust port.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. A combined dry and wet flow cooling tower, comprising: the system comprises a tower body, a dry cooling unit and a wet cooling unit;
the tower body is a cavity shell with a dry cooling area and a wet cooling area arranged inside; the tower body is provided with a ventilation opening and an exhaust opening;
the dry cooling unit is positioned in the dry cooling area and is provided with a primary hot water inlet and a primary cold water outlet, and the primary hot water inlet is externally connected with a hot water pipeline;
the wet cooling unit is positioned in the wet cooling area and is provided with a secondary hot water inlet and a secondary cold water outlet; the secondary hot water inlet is communicated with the primary cold water outlet, and the secondary cold water outlet is externally connected with a cold water pipeline.
2. The combined dry and wet flow cooling tower of claim 1, wherein said air outlet is located at a top of said tower body, said dry cooling zone is located adjacent said air outlet, and said wet cooling zone is located below said dry cooling zone.
3. The combined dry and wet flow cooling tower of claim 2, wherein said dry and cold unit comprises a fin cooler and a fan; the water inlet end of the fin cooler is the primary hot water inlet, and the water outlet end of the fin cooler is the primary cold water outlet; the fan is arranged at the air outlet.
4. The dry-wet mixed flow cooling tower according to claim 2, wherein the wet cooling unit comprises a cooling pipe, a spray head, a spray pipe assembly, a liquid pumping unit and a spray tank, the spray pipe assembly is communicated with the spray tank, the liquid pumping unit and the spray head and is configured as an open cooling loop; the spraying direction of the spray head faces to the cooling pipe, the water inlet end of the cooling pipe is the secondary hot water inlet, and the water outlet end of the cooling pipe is the secondary cold water outlet.
5. The dry-wet mixed flow cooling tower according to claim 4, wherein the wet cooling unit further comprises an exhaust fan, the tower body is further provided with an air inlet, and an air outlet port of the exhaust fan is communicated with the air inlet to extract normal temperature gas from the outside of the tower body and convey the gas to the wet cooling area.
6. The combined dry and wet flow cooling tower of claim 2, wherein a condensation plate is disposed between said dry cooling unit and said wet cooling unit, said condensation plate comprises a metal hollow plate and a water-absorbing air-permeable block, and said water-absorbing air-permeable block is sandwiched between two layers of said metal hollow plates.
7. The cooling tower of claim 6, wherein said water-absorbing air-permeable block comprises two or more honeycomb plates, and the honeycomb holes of two adjacent honeycomb plates are offset from each other.
8. The combined dry and wet flow cooling tower of claim 2 further comprising a demisting cap positioned above said exhaust opening with an opening facing downward.
9. The combined dry and wet stream cooling tower of claim 8, wherein the demisting cap comprises: the annular drum assembly comprises a plurality of annular drums with the same shape and proportional sizes, the annular drums with the same shape and proportional sizes are concentrically and fixedly connected to the inner bottom surface, far away from the opening, of the cap shell, the annular wave drums are concentrically buckled with the annular drums, a gap exists between one end, far away from the inner bottom surface of the cap shell, of each annular drum and a bottom wave trough of each annular wave drum, and a drain hole is formed in the bottom wave trough of each annular wave drum; a gap is formed between the top wave crest of the annular wave cylinder and the bottom surface inside the cap shell.
10. The cooling tower of mixed dry and wet flow as claimed in claim 9, wherein an inner edge is provided at an end of the inner ring of the annular wave cylinder close to the inner bottom surface of the cap shell, a plurality of insertion grooves are circumferentially provided on a surface of the inner edge facing the inner bottom surface of the cap shell, the inner bottom surface of the cap shell is provided with insertion posts adapted to the insertion grooves, and the annular wave cylinder is connected to the cap shell by the insertion grooves and the insertion posts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110517745.5A CN113218207B (en) | 2021-05-12 | 2021-05-12 | Cooling tower of wet and dry mixed flow |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110517745.5A CN113218207B (en) | 2021-05-12 | 2021-05-12 | Cooling tower of wet and dry mixed flow |
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| CN113218207A true CN113218207A (en) | 2021-08-06 |
| CN113218207B CN113218207B (en) | 2023-06-09 |
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| CN113218207B (en) | 2023-06-09 |
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