CN205784679U - A kind of mechanical-draft cooling tower group - Google Patents
A kind of mechanical-draft cooling tower group Download PDFInfo
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- CN205784679U CN205784679U CN201620497715.7U CN201620497715U CN205784679U CN 205784679 U CN205784679 U CN 205784679U CN 201620497715 U CN201620497715 U CN 201620497715U CN 205784679 U CN205784679 U CN 205784679U
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- 238000001816 cooling Methods 0.000 title claims abstract description 299
- 239000000498 cooling water Substances 0.000 claims abstract description 111
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 205
- 238000005399 mechanical ventilation Methods 0.000 claims description 147
- 238000009826 distribution Methods 0.000 claims description 121
- 238000012856 packing Methods 0.000 claims description 32
- 239000007921 spray Substances 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
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Abstract
The utility model discloses a kind of mechanical-draft cooling tower group, belong to cooling tower field.Described mechanical-draft cooling tower group includes: two row mechanical-draft cooling towers, cooling water dispenser and backwater ditch；Two row mechanical-draft cooling towers are set up in parallel, and each column mechanical-draft cooling tower in two row mechanical-draft cooling towers includes at least one single admission mechanical-draft cooling tower；The cooling moisture portion of joining is positioned between two row mechanical-draft cooling towers and is coupled together by two row mechanical-draft cooling towers, and cooling water to be cooled is separately dispensed in every room machine aerating and cooling tower that two row mechanical-draft cooling towers include cooling by cooling water dispenser；Backwater ditch is connected between two row mechanical-draft cooling towers and with every room machine aerating and cooling tower, and cooling water to be cooled all flows in backwater ditch after cooling down in every room machine aerating and cooling tower.This mechanical-draft cooling tower group can reduce length and the floor space of mechanical-draft cooling tower group so that mechanical-draft cooling tower group's flexible arrangement is convenient.
Description
Technical Field
The utility model relates to a cooling tower technical field, in particular to mechanical draft cooling tower crowd.
Background
A large amount of heat can be produced in the unit operation process of the fire/nuclear power plant, so that the heat produced in the unit operation process can be absorbed by cooling water, meanwhile, in the construction process of the fire/nuclear power plant, a plurality of mechanical ventilation cooling towers can be constructed, and the cooling water after absorbing the heat is cooled by the mechanical ventilation cooling towers, so that the cooling water can be recycled.
At present, a single-row or double-row mechanical draft cooling tower group is usually adopted by a power plant to cool cooling water. Air outlets, a water distribution layer, a packing layer, air inlets and a water collecting tank are arranged on each mechanical ventilation cooling tower from top to bottom, natural air enters the mechanical ventilation cooling tower through the air inlets on two sides of the mechanical ventilation cooling tower, the packing layer is in full contact with cooling water to be cooled from the water distribution layer so as to reduce the temperature of the cooling water to be cooled, and the cooled cooling water falls into the water collecting tank, is collected to a water return ditch through the water collecting tank and is recycled after being lifted by a circulating water pump. The mechanical ventilation cooling tower group comprises a row of mechanical ventilation cooling towers, a main water distribution pipe, a plurality of branch water distribution pipes and a water return ditch; the mechanical ventilation cooling tower group with double rows is characterized in that multiple mechanical ventilation cooling towers with double rows are arranged into two rows, a sufficient distance is reserved between the two rows of towers, and the tower group comprises two rows of mechanical ventilation cooling towers, two water distribution main pipes, a plurality of water distribution branch pipes and two water return ditches.
In the process of implementing the present invention, the inventor finds that the prior art has at least the following problems:
for a large-scale power plant, the capacity of the unit is large, heat generated in the operation process of the unit is large, the number of required mechanical ventilation cooling towers is large, and if the mechanical ventilation cooling tower group is arranged in a single row, the length of the mechanical ventilation cooling tower group is long, so that the plane arrangement of the mechanical ventilation cooling tower group is difficult; if adopt current biserial to arrange, for alleviateing two columns tower interact, guarantee the cooling effect, two column tower intervals should be enough big, can increase the area of cooling tower crowd by a wide margin.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of the prior art, the embodiment of the utility model provides a mechanical draft cooling tower crowd is provided, its characterized in that, mechanical draft cooling tower crowd includes: two rows of mechanical ventilation cooling towers, cooling water distribution parts and water return ditches;
the two rows of mechanical ventilation cooling towers are arranged in parallel, and each row of mechanical ventilation cooling tower in the two rows of mechanical ventilation cooling towers comprises at least one mechanical ventilation cooling tower with air entering from one side;
the cooling water distribution part is positioned between and connects the two rows of mechanical ventilation cooling towers, and distributes the cooling water to be cooled to each mechanical ventilation cooling tower in the two rows of mechanical ventilation cooling towers for cooling;
The water return ditch is positioned between the two rows of mechanical ventilation cooling towers and connected with each mechanical ventilation cooling tower, and the cooling water to be cooled flows into the water return ditch after being cooled in each mechanical ventilation cooling tower.
Optionally, the cooling water distribution section includes a first horizontal mother pipe, a first upright mother pipe, and a second horizontal mother pipe;
one end of the first horizontal main pipe is perpendicular to and communicated with one end of the first vertical main pipe, the other end of the first vertical main pipe is perpendicular to and communicated with one end of the second horizontal main pipe, the first vertical main pipe is vertically arranged in the water return ditch, and the second horizontal main pipe is positioned between the two rows of mechanical ventilation cooling towers and is parallel to the two rows of mechanical ventilation cooling towers;
the first horizontal mother pipe is positioned at the bottom of one row of mechanical ventilation cooling towers in the two rows of mechanical ventilation cooling towers, and the cooling water to be cooled is guided into the first vertical mother pipe;
and the second horizontal main pipe distributes the cooling water to be cooled transmitted by the first vertical main pipe to each mechanical draft cooling tower in the two rows of mechanical draft cooling towers respectively.
Optionally, the cooling water distribution part further comprises a third horizontal mother pipe, a second vertical mother pipe and a fourth horizontal mother pipe;
one end of the third horizontal main pipe is perpendicular to and communicated with one end of the second vertical main pipe, the other end of the second vertical main pipe is perpendicular to and communicated with one end of the fourth horizontal main pipe, the second vertical main pipe is vertically arranged in the water return ditch, and the fourth horizontal main pipe is positioned between the two rows of mechanical ventilation cooling towers and is parallel to the two rows of mechanical ventilation cooling towers;
the third horizontal main pipe and the first horizontal main pipe are arranged at the bottom of the middle part of one row of mechanical ventilation cooling tower in the two rows of mechanical ventilation cooling towers in an adjacent mode;
the second vertical main pipe is adjacent to the first vertical main pipe and is vertically arranged in the middle of the backwater ditch;
the second horizontal main pipe is arranged between the middle parts of the two rows of mechanical ventilation cooling towers and one end of the two rows of mechanical ventilation cooling towers, and the fourth horizontal main pipe is arranged between the middle parts of the two rows of mechanical ventilation cooling towers and the other end of the two rows of mechanical ventilation cooling towers.
Optionally, the cooling water dispensing part further comprises a first water dispensing valve and a second water dispensing valve;
The first water distribution valve is installed on the first horizontal main pipe, and the second water distribution valve is installed on the third horizontal main pipe.
Optionally, each mechanical ventilation cooling tower is provided with an air outlet, at least one water distribution pipe, a packing layer, a water collecting part and an air inlet;
the air outlet is arranged at the top of each mechanical ventilation cooling tower;
each water distribution pipe of the at least one water distribution pipe is arranged in each mechanical ventilation cooling tower and is communicated with the second horizontal main pipe;
the packing layer is arranged in each mechanical ventilation cooling tower and is positioned below the at least one water distribution pipe;
the water collecting part is arranged in each mechanical ventilation cooling tower and is positioned below the packing layer, and the water collecting part is communicated with the water return ditch;
the air inlet is formed in the outer wall of each mechanical ventilation cooling tower and located below the water collecting portion.
Optionally, the water collection portion comprises at least one water collection sheet and a water collection trough corresponding to each of the at least one water collection sheet;
one end of at least one water collecting plate is fixed on the support frame of the packing layer at intervals, the other end of the at least one water collecting plate is fixed on the corresponding water collecting groove, and each water collecting plate is obliquely arranged;
The water collecting tank corresponding to each water collecting plate is arranged between the packing layer and the upper edge of the air inlet and is vertically communicated with the water return ditch.
Optionally, an air deflector is disposed at an air inlet of each mechanical draft cooling tower.
Optionally, at least one spray head is arranged on the outer wall of each water distribution pipe close to the packing layer;
and spraying cooling water to be cooled in each water distribution pipe to the packing layer through the spray head.
Optionally, an arc-shaped air guide wall is arranged on the inner wall of each mechanical draft cooling tower close to the water return ditch.
Optionally, a connecting and overhauling platform is further arranged between the two rows of mechanical ventilation cooling towers.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
by arranging two rows of mechanical ventilation cooling towers in parallel, arranging a cooling water distribution part and a water return ditch between the two rows of mechanical ventilation cooling towers, respectively distributing cooling water to be cooled to each mechanical ventilation cooling tower in the two rows of mechanical ventilation cooling towers through the cooling water distribution part, uniformly distributing the cooling water cooled by each mechanical ventilation cooling tower into the water return ditch, lifting the cooling water flowing into the water return ditch through a circulating water pump, and then cooling an operating unit of a power plant, the length and the floor area of a mechanical ventilation cooling tower group can be reduced by the arrangement, so that the arrangement of the mechanical ventilation cooling tower group is flexible and convenient, meanwhile, the two rows of mechanical ventilation cooling towers can simultaneously distribute the cooling water to be cooled into the two rows of mechanical ventilation cooling towers through the cooling water distribution part arranged between the two rows of mechanical ventilation cooling towers, and the cooling water collected by the water return ditch arranged between the two rows of mechanical ventilation cooling towers, compared with the existing mechanical ventilation cooling tower group arranged in a single row, the mechanical ventilation cooling tower group can be flexibly and conveniently arranged, and the occupied area is reduced; compared with the existing mechanical ventilation cooling tower group arranged in double rows, the mechanical ventilation cooling tower group has the advantages that the occupied area is reduced, the investment of water distribution facilities and water collection facilities is reduced, and meanwhile, the operation and maintenance conditions of the tower group can also be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and 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 to obtain other drawings without creative efforts.
Fig. 1 is a plan view of a mechanical draft cooling tower group according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along the line A-A of a mechanical draft cooling tower assembly according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of a mechanical draft cooling tower assembly according to an embodiment of the present invention;
fig. 4 is a partial enlarged view of a mechanical draft cooling tower group according to a first embodiment of the present invention.
Wherein,
1 two rows of mechanical ventilation cooling towers, 11 mechanical ventilation cooling towers, 111 air outlets, 112 water distribution pipes, 1121 water distribution thick pipes, 1122 water distribution thin pipes, 113 packing layers, 114 water collection parts, 1141 water collection plates, 1142 water collection grooves, 115 air inlets, 116 spray heads, 117 connecting rods, 118 arc air guide walls, 119 air guide plates and 120 fans;
2 a cooling water distribution part, 21 a first horizontal main pipe, 22 a first vertical main pipe, 23 a second horizontal main pipe, 24 a third horizontal main pipe, 25 a second vertical main pipe, 26 a first water distribution valve and 27 a second water distribution valve;
3, returning to a ditch;
4, concrete;
5 connecting and maintaining the platform;
o two rows of one ends of the mechanical draft cooling tower and P two rows of the other ends of the mechanical draft cooling tower.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In order to solve the length of current mechanical draft cooling tower crowd very long for the comparatively difficult problem of planar layout of mechanical draft cooling tower crowd, as shown in fig. 1, the embodiment of the utility model provides a mechanical draft cooling tower crowd, this mechanical draft cooling tower crowd includes: two rows of mechanical ventilation cooling towers 1, cooling water distribution parts 2 and water return ditches 3;
as shown in fig. 1, and with reference to fig. 2, two rows of mechanical draft cooling towers 1 are arranged in parallel, each of the two rows of mechanical draft cooling towers 1 including at least one mechanical draft cooling tower 11 with single side intake air;
as shown in fig. 1, and referring to fig. 2, a cooling water distribution section 2 is located between two rows of mechanical draft cooling towers 1 and connects the two rows of mechanical draft cooling towers 1, and the cooling water distribution section 2 distributes cooling water to be cooled to each of the mechanical draft cooling towers 11 included in the two rows of mechanical draft cooling towers 1, respectively;
As shown in fig. 1 and referring to fig. 2, the water return ditch 3 is located between two rows of mechanical draft cooling towers 1 and connected with each mechanical draft cooling tower 11, and cooling water to be cooled flows into the water return ditch 3 after being cooled in each mechanical draft cooling tower 11.
The utility model discloses implement through setting up two mechanical draft cooling tower 1 side by side, every mechanical draft cooling tower 11 that every machinery passes through in the cooling tower is the unilateral air inlet, and set up cooling water distribution portion 2 and return water ditch 3 between two mechanical draft cooling tower 1, will wait that refrigerated cooling water distributes respectively to two mechanical draft cooling tower 11 in the mechanical draft cooling tower 1 in through cooling water distribution portion 2, the cooling water after 11 coolings at every mechanical draft cooling tower flow equalizes to in the return water ditch 3, the cooling water that flows to in the return water ditch 3 alright cool off the operation unit of power plant once more after circulating water pump promotes in order, so set up length and area that can reduce mechanical draft cooling tower crowd, make arranging of mechanical draft cooling tower crowd nimble convenient, and simultaneously, two mechanical draft cooling tower 1 can be through setting up two cooling part 2 between mechanical draft cooling tower 1 simultaneously to two mechanical draft cooling tower 2 to two Cooling water to be cooled is distributed in the cooling tower 1, and the cooled cooling water is collected through a water return ditch 3 arranged between two rows of mechanical ventilation cooling towers 1, so that the mechanical ventilation cooling tower group can be flexibly and conveniently arranged and the occupied area is reduced compared with the conventional mechanical ventilation cooling tower group which is arranged in a single row; compared with the existing mechanical ventilation cooling tower group arranged in double rows, the mechanical ventilation cooling tower group has the advantages that the occupied area is reduced, the investment of water distribution facilities and water collection facilities is reduced, and meanwhile, the operation and maintenance conditions of the tower group can also be improved.
As shown in fig. 1, one of the two rows of mechanical draft cooling towers 1 is M, the other row is N, for clearly showing the structure of the mechanical draft cooling tower group, only four mechanical draft cooling towers 11 included in each row of mechanical draft cooling tower are shown, in the actual production process, the number of the mechanical draft cooling towers 11 included in each row of mechanical draft cooling tower can be designed according to the requirements of the power plant, and is not limited to this embodiment. After absorbing heat generated by the units of the power plant in the operation process, the cooling water flows into the cooling water distribution part 2, the cooling water to be cooled is distributed into each mechanical ventilation cooling tower 11 through the cooling water distribution part 2 for cooling, as shown in fig. 1 and referring to fig. 2, the cooled cooling water flows into the water return ditch 3 between two rows of the mechanical ventilation cooling towers 1 for recovery, and enters the units of the power plant again for cooling the operating units after being lifted by the circulating water pump.
Alternatively, as shown in fig. 1, and referring to fig. 2, the cooling water distributing part 2 includes a first horizontal mother pipe 21, a first upright mother pipe 22, and a second horizontal mother pipe 23;
one end of a first horizontal main pipe 21 is perpendicular to and communicated with one end of a first vertical main pipe 22, the other end of the first vertical main pipe 22 is perpendicular to and communicated with one end of a second horizontal main pipe 23, the first vertical main pipe 22 is vertically arranged in the water return ditch 3, and the second horizontal main pipe 23 is positioned between two rows of mechanical ventilation cooling towers 1 and is parallel to the two rows of mechanical ventilation cooling towers 1;
The first horizontal main pipe 21 is positioned at the bottom of one of the two rows of mechanical draft cooling towers 1, in the embodiment, the first horizontal main pipe 21 is positioned at the bottom of the M rows of mechanical draft cooling towers and guides the cooling water to be cooled to the first vertical main pipe 22;
the second horizontal main pipe 23 distributes the cooling water to be cooled, which is transferred from the first vertical main pipe 22, to each mechanical draft cooling tower 11 included in the two rows of mechanical draft cooling towers 1.
By arranging the first vertical main pipe 22, cooling water to be cooled in the first horizontal main pipe 21 can be guided into the second horizontal main pipe 23, and the cooling water to be cooled is distributed into each mechanical ventilation cooling tower 11 through the second horizontal main pipe 23, in the process, the first vertical main pipe 22 and the first horizontal main pipe 21 mainly play a role in guiding, and the second horizontal main pipe 23 mainly plays a role in distributing.
Alternatively, the first horizontal mother pipe 21, the first vertical mother pipe 22 and the second horizontal mother pipe 23 may be made of glass fiber reinforced plastic pipes, and the first vertical mother pipe 22 and the second horizontal mother pipe 23 may be supported and fixed in the backwater ditch 3 by a beam or a column.
Alternatively, as shown in fig. 1 and referring to fig. 2, the concrete 4 is wrapped around the first standing mother pipe 22, and since the return water channel 3 collects the cooling water cooled by each mechanical draft cooling tower 11, the first standing mother pipe 22 may be affected by the flow of the cooling water in the return water channel 3, and thus the concrete 4 is wrapped around the first standing mother pipe 22, so that the stress condition of the first standing mother pipe 22 can be improved, and the flow condition of the return water channel 3 can be improved.
Alternatively, as shown in fig. 1, the cooling water distributing part 2 further includes a third horizontal mother pipe 24, a second vertical mother pipe 25, and a fourth horizontal mother pipe, wherein the fourth horizontal mother pipe is not shown in the drawing;
one end of a third horizontal main pipe 24 is perpendicular to and communicated with one end of a second vertical main pipe 25, the other end of the second vertical main pipe 25 is perpendicular to and communicated with one end of a fourth horizontal main pipe 25, the second vertical main pipe 25 is vertically arranged in the water return ditch 3, and the fourth horizontal main pipe is positioned between two rows of mechanical ventilation cooling towers 1 and is parallel to the two rows of mechanical ventilation cooling towers 1;
the third horizontal main pipe 24 and the first horizontal main pipe 21 are arranged at the bottom of the middle part of one row of the mechanical ventilation cooling tower 1 in the two rows of the mechanical ventilation cooling tower 1 in an adjacent mode;
the second vertical main pipe 25 is arranged adjacent to the first vertical main pipe 22 and is vertically arranged in the middle of the water return ditch 3;
the second horizontal main pipe 23 is arranged between the middle parts of the two rows of mechanical draft cooling towers 1 and one end O of the two rows of mechanical draft cooling towers 1, and the fourth horizontal main pipe is arranged between the middle parts of the two rows of mechanical draft cooling towers 1 and the other end P of the two rows of mechanical draft cooling towers 1.
By arranging the cooling water distribution part 2 into two sets of water distribution facilities, wherein one set of water distribution facilities comprises a first horizontal mother pipe 21, a first vertical mother pipe 22 and a second horizontal mother pipe 23, the other set of water distribution facilities comprises a third horizontal mother pipe 24, a second vertical mother pipe 25 and a fourth horizontal mother pipe, and the first horizontal mother pipe 21 and the first vertical mother pipe 22 which play a role in drainage in one set of water distribution facilities are adjacently arranged in parallel with the third horizontal mother pipe 24 and the second vertical mother pipe 25 which play a role in drainage in the other set of water distribution facilities, and simultaneously, the second horizontal mother pipe 23 which plays a role in distribution in one set of water distribution facilities is arranged between the middle part of the two rows of mechanical ventilation cooling towers 1 and one end O of the two rows of mechanical ventilation cooling towers 1, and the fourth horizontal mother pipe which plays a role in distribution in the other set of water distribution facilities is arranged between the middle part of the two rows of mechanical ventilation cooling towers 1 and the other end P of the two rows of mechanical ventilation cooling towers 1, the two sets of water distribution facilities can work independently, namely the second horizontal main pipe 23 mainly distributes the cooling water to be cooled to each mechanical draft cooling tower 11 between the middle part of two rows of mechanical draft cooling towers 1 and one end O of the two rows of mechanical draft cooling towers 1, and the fourth horizontal header mainly distributes the cooling water to be cooled to each mechanical draft cooling tower 11 located between the middle of two rows of mechanical draft cooling towers 1 to the other end P of the two rows of mechanical draft cooling towers 1, thus, if one set of water distribution facility in the two sets of water distribution facilities needs to be overhauled, the cooling water to be cooled can be distributed into the mechanical ventilation cooling tower through the water distribution facility which can normally work, or if a certain mechanical ventilation cooling tower 11 needs to be overhauled, the cooling operation of the whole mechanical ventilation cooling tower group does not need to be stopped, and it is ensured that part of the mechanical ventilation cooling towers 11 in the mechanical ventilation cooling tower group can still cool the cooling water to be cooled.
Alternatively, as shown in fig. 1 and referring to fig. 2, a first water distribution valve 26 may be installed on the first horizontal main pipe 21, a second water distribution valve 27 may be installed on the third horizontal main pipe 24, the cooling water to be cooled may be distributed into two sets of water distribution facilities by opening the first water distribution valve 26 and the second water distribution valve 27, and the distribution of the cooling water to be cooled into two sets of water distribution facilities may be stopped by closing the first water distribution valve 26 and the second water distribution valve 27, so that whether the cooling water to be cooled is distributed to two sets of water distribution facilities may be separately controlled according to actual conditions.
Alternatively, as shown in fig. 2, and referring to fig. 3, fig. 2 is a sectional view taken along a-a direction of the mechanical draft cooling tower group in fig. 1, fig. 3 is a sectional view taken along B-B direction of the mechanical draft cooling tower group in fig. 1, and each mechanical draft cooling tower 11 is provided with an air outlet 111, at least one water distribution pipe 112, a packing layer 113, a water collecting portion 114 and an air inlet 115;
the air outlet 111 is arranged at the top of each mechanical ventilation cooling tower 11;
each water distribution pipe 112 of the at least one water distribution pipe 112 is arranged in each mechanical ventilation cooling tower 11, if the mechanical ventilation cooling tower group is only provided with one set of water distribution facility, the second horizontal main pipe 23 distributes cooling water to be cooled to each mechanical ventilation cooling tower 11 of the two rows of mechanical ventilation cooling towers 1, at this time, each water distribution pipe 112 of the at least one water distribution pipe 112 is communicated with the second horizontal main pipe 23, if the mechanical ventilation cooling tower is provided with two sets of water distribution facilities, the second horizontal main pipe 23 mainly distributes the cooling water to be cooled to each mechanical ventilation cooling tower 11 between the middle part of the two rows of mechanical ventilation cooling towers 1 and one end O of the two rows of mechanical ventilation cooling towers 1, the fourth horizontal main pipe mainly distributes the cooling water to be cooled to each mechanical ventilation cooling tower 11 between the middle part of the two rows of mechanical ventilation cooling towers 1 and the other end P of the two rows of mechanical ventilation cooling towers 1, at this time, the water distribution pipe 112 in each mechanical draft cooling tower 11 between the middle of two rows of mechanical draft cooling towers 1 and one end O of two rows of mechanical draft cooling towers 1 is communicated with the second horizontal main pipe 23, and the water distribution pipe 112 in each mechanical draft cooling tower 11 between the middle of two rows of mechanical draft cooling towers 1 and the other end P of two rows of mechanical draft cooling towers 1 is communicated with the fourth horizontal main pipe; the packing layer 113 is arranged in each mechanical draft cooling tower 11 and is positioned below at least one water distribution pipe 112;
The water collecting part 114 of each mechanical draft cooling tower 11 is positioned below the packing layer 113 and is communicated with the water return ditch 3;
the air inlet 115 is arranged on the outer wall of each mechanical draft cooling tower 11 and is positioned below the water collecting part 114;
as shown in fig. 2 and referring to fig. 1, the cooling water to be cooled in the second horizontal mother pipe 23 enters the corresponding mechanical ventilation cooling tower 11 through the water distribution pipe 112 communicated therewith, the cooling water to be cooled in the fourth horizontal mother pipe enters the corresponding mechanical ventilation cooling tower 11 through the water distribution pipe 112 communicated therewith, the cooling water with cooling entering each mechanical ventilation cooling tower 11 enters the packing layer 113 through the water distribution pipe 112, meanwhile, natural wind enters each mechanical ventilation cooling tower 11 through the wind inlet 115 of each mechanical ventilation cooling tower 11, wind at the packing layer 113 can be in full contact with the cooling water to be cooled to reduce the temperature of the cooling water to be cooled, the cooled cooling water flows to the water collection portion 114, and the natural wind after cooling the cooling water to be cooled flows out from the wind outlet 111.
Alternatively, as shown in fig. 2 and referring to fig. 3, at least one spray nozzle 116 is disposed on an outer wall of each water distribution pipe 112 close to the packing layer 113, the cooling water to be cooled in each water distribution pipe 112 is sprayed to the packing layer 113 through the spray nozzle 116, and the cooling water to be cooled is sprayed into the packing layer 113 through the spray nozzle 116, so that the cooling water to be cooled can uniformly enter the packing layer 113, the wind entering from the wind inlet 115 can be sufficiently contacted with the cooling water to be cooled, and the cooling effect is improved.
Optionally, as shown in fig. 1 and referring to fig. 2 and fig. 3, each water distribution pipe 112 includes a water distribution coarse pipe 1121 and a plurality of water distribution fine pipes 1122, the plurality of water distribution fine pipes 1122 are uniformly disposed on both sides of the water distribution coarse pipe 1121 and are communicated with the water distribution coarse pipe 1121, and at least one spray nozzle 116 is disposed on an outer wall of each water distribution fine pipe 1122 of the plurality of water distribution fine pipes 1122, which is close to the filler layer 113; for a mechanical ventilation cooling tower group only provided with one set of water distribution facility, the water distribution thick pipes 1121 in each mechanical ventilation cooling tower 11 are communicated with a second horizontal main pipe 23, the second horizontal main pipe 23 distributes cooling water to be cooled to the water distribution thick pipes 1121 of each mechanical ventilation cooling tower 11, the cooling water to be cooled is distributed to each water distribution thin pipe 1122 through the water distribution thick pipes 1121 of each ventilation cooling tower, and then the cooling water to be cooled is uniformly sprayed to the filler layer 113 through each water distribution thin pipe 1122; for a mechanical ventilation cooling tower group provided with two sets of water distribution facilities, a water distribution thick pipe 1121 in each mechanical ventilation cooling tower 11 from the middle of two rows of mechanical ventilation cooling towers 1 to between one ends O of the two rows of mechanical ventilation cooling towers 1 is communicated with a second horizontal main pipe 23, the second horizontal main pipe 23 firstly distributes cooling water to be cooled into the water distribution thick pipes 1121 communicated with the second horizontal main pipe, the cooling water to be cooled is distributed into each water distribution thin pipe 1122 through the water distribution thick pipes 1121, then the cooling water to be cooled is uniformly sprayed to a filler layer 113 through each water distribution thin pipe 1122, the water distribution thick pipe 1121 in each mechanical ventilation cooling tower 11 from the middle of the two rows of mechanical ventilation cooling towers 1 to between the other ends P of the two rows of mechanical ventilation cooling towers 1 is communicated with a fourth horizontal main pipe, the fourth horizontal main pipe firstly distributes the cooling water to be cooled into the water distribution thick pipes 1121 communicated with the fourth horizontal main pipe, and distributes the cooling water distribution thick pipes 1121 into each water distribution thin pipe 1122, and then the cooling water to be cooled is uniformly sprayed to the packing layer 113 through each water distribution tubule 1122.
By arranging the water distribution pipe 112 into one water distribution thick pipe 1121 and a plurality of water distribution thin pipes 1122, the cooling water to be cooled can be further uniformly sprayed to the packing layer 113, so that the air entering from the air inlet 115 is fully contacted with the cooling water to be cooled, and the cooling effect is improved.
Alternatively, as shown in fig. 3, and referring to fig. 2 and 1, water collection portion 114 includes at least one water collection sheet 1141 and a water collection groove 1142 corresponding to each water collection sheet 1141 of at least one water collection sheet 1141;
one end of at least one water collection plate 1141 is fixed on the support frame of the packing layer 113 at intervals, the other end is fixed on the corresponding water collection groove 1142, and each water collection plate 1141 is obliquely arranged;
the water collecting groove 1142 corresponding to each water collecting plate 1141 is arranged between the packing layer 113 and the upper edge of the air inlet 115 and is vertically communicated with the water returning ditch 3.
The cooling water after the packing layer 113 cools off flows to the water collecting tank 1142 through the water collecting plate 1141, and then flows to the water return ditch 3 through the water collecting tank 1142, the water collecting plate 1141 and the water collecting tank 1142 are both positioned on the air inlet 115, so that the cooling water after the packing layer 113 cools off contacts with the air entering from the air inlet 115 again, the cooling effect is improved, meanwhile, the water collecting plate 1141 is obliquely arranged, the contact area between the cooling water and the air can be increased, the cooling water is fully cooled, and the cooling effect is further improved.
Alternatively, as shown in fig. 4, fig. 4 is a partial enlarged view of area a in fig. 3, the other end of water collection sheet 1141 may be fixed to water collection tank 1142 corresponding thereto by at least one connecting rod 117, the materials of water collection tank 1142 and connecting rod 117 may be all glass fiber reinforced plastics, and connecting rod 117 may be fixed to water collection tank 1142 by bonding, or may be designed according to actual circumstances.
Optionally, the distance between every two adjacent connecting rods 117 in the at least one connecting rod 117 at the other end of each water collecting plate 1141 is controlled to be about 1m, which can also be selected according to actual conditions, but the rigidity of the water collecting tank 1142 is ensured to meet the requirement in consideration of the stress condition of the water collecting tank 1142.
Optionally, the water collecting groove 1142 may be designed as a rectangular groove to prevent the cooled cooling water from leaking, and the shape of the water collecting groove 1142 may also be designed according to actual conditions.
Optionally, as shown in fig. 2, an arc-shaped air guide wall 118 is disposed on an inner wall of each mechanical draft cooling tower 11 close to the return water ditch 3, and by disposing the arc-shaped air guide wall 118 on the inner wall of each mechanical draft cooling tower 11 close to the return water ditch 3, air intake resistance when air enters the tower from the air intake 115 can be reduced, and ventilation conditions can be improved, and meanwhile, the arc-shaped air guide wall 118 can support the return water ditch 3.
Optionally, as shown in fig. 2, an air deflector 119 is disposed at the air inlet 115 of each mechanical draft cooling tower 11, and the air deflector 119 can reduce air inlet resistance when air enters the tower from the air inlet 115, so as to improve a draft condition.
Optionally, as shown in fig. 1 and referring to fig. 2, a fan 120 is disposed at the air outlet 111 of each mechanical ventilation cooling tower 11, and the fan 120 rotates to drive the air cooled by the cooling water to be cooled to flow out from the air outlet 111, so as to improve the air outlet condition.
Optionally, as shown in fig. 2 and referring to fig. 1, a connecting and overhauling platform 5 is arranged between the two rows of mechanical draft cooling towers 1, so that the mechanical draft cooling towers 11 can be conveniently maintained and overhauled.
Optionally, an electric single-beam overhead crane may be provided at the top of the mechanical draft cooling tower 11 to facilitate installation, maintenance and overhaul of the mechanical draft cooling tower 11.
The embodiment of the utility model provides a through setting up two mechanical draft cooling towers 1 side by side, every mechanical draft cooling tower 11 that every machinery passes through in the cooling tower is the unilateral air inlet, and set up cooling water distribution portion 2 and return water ditch 3 between two mechanical draft cooling towers 1, will treat that refrigerated cooling water distributes respectively to every mechanical draft cooling tower 11 among two mechanical draft cooling towers 1 through cooling water distribution portion 2, the cooling water after through every mechanical draft cooling tower 11 cooling is equalized to in return water ditch 3, the cooling water that flows to in return water ditch 3 alright cool off the operation unit of power plant once more after circulating water pump promotes, so set up the length that can reduce mechanical draft cooling tower crowd, can make mechanical draft cooling tower crowd arrange nimble convenient, and reduce area, simultaneously, two mechanical draft cooling towers 1 can be through setting up two cooling portion 2 between two mechanical draft cooling towers 1 to two mechanical draft simultaneously to two machinery through the operation unit of power plant Cooling water to be cooled is distributed in the air cooling tower 1, and the cooled cooling water is collected through a water return ditch 3 arranged between two rows of mechanical ventilation cooling towers 1, so that the mechanical ventilation cooling tower group is flexibly and conveniently arranged and the occupied area is reduced compared with the conventional mechanical ventilation cooling tower group arranged in a single row; compared with the existing mechanical ventilation cooling tower group arranged in two rows, the mechanical ventilation cooling tower group has the advantages that the occupied area is reduced, the investment of water distribution facilities and water collection facilities is reduced, and meanwhile, the operation and maintenance conditions of the tower group can also be improved.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A mechanical draft cooling tower cluster, said mechanical draft cooling tower cluster comprising: two rows of mechanical ventilation cooling towers, cooling water distribution parts and water return ditches;
the two rows of mechanical ventilation cooling towers are arranged in parallel, and each row of mechanical ventilation cooling tower in the two rows of mechanical ventilation cooling towers comprises at least one mechanical ventilation cooling tower with air entering from one side;
the cooling water distribution part is positioned between and connects the two rows of mechanical ventilation cooling towers, and distributes the cooling water to be cooled to each mechanical ventilation cooling tower in the two rows of mechanical ventilation cooling towers for cooling;
the water return ditch is positioned between the two rows of mechanical ventilation cooling towers and connected with each mechanical ventilation cooling tower, and the cooling water to be cooled flows into the water return ditch after being cooled in each mechanical ventilation cooling tower.
2. The mechanical draft cooling tower cluster of claim 1, wherein said cooling water distribution section comprises a first horizontal parent pipe, a first upright parent pipe and a second horizontal parent pipe;
one end of the first horizontal main pipe is perpendicular to and communicated with one end of the first vertical main pipe, the other end of the first vertical main pipe is perpendicular to and communicated with one end of the second horizontal main pipe, the first vertical main pipe is vertically arranged in the water return ditch, and the second horizontal main pipe is positioned between the two rows of mechanical ventilation cooling towers and is parallel to the two rows of mechanical ventilation cooling towers;
The first horizontal mother pipe is positioned at the bottom of one row of mechanical ventilation cooling towers in the two rows of mechanical ventilation cooling towers, and the cooling water to be cooled is guided into the first vertical mother pipe;
and the second horizontal main pipe distributes the cooling water to be cooled transmitted by the first vertical main pipe to each mechanical draft cooling tower in the two rows of mechanical draft cooling towers respectively.
3. The mechanical draft cooling tower cluster of claim 2, wherein said cooling water distribution section further comprises a third horizontal mother tube, a second vertical mother tube and a fourth horizontal mother tube;
one end of the third horizontal main pipe is perpendicular to and communicated with one end of the second vertical main pipe, the other end of the second vertical main pipe is perpendicular to and communicated with one end of the fourth horizontal main pipe, the second vertical main pipe is vertically arranged in the water return ditch, and the fourth horizontal main pipe is positioned between the two rows of mechanical ventilation cooling towers and is parallel to the two rows of mechanical ventilation cooling towers;
the third horizontal main pipe and the first horizontal main pipe are arranged at the bottom of the middle part of one row of mechanical ventilation cooling tower in the two rows of mechanical ventilation cooling towers in an adjacent mode;
The second vertical main pipe is adjacent to the first vertical main pipe and is vertically arranged in the middle of the backwater ditch;
the second horizontal main pipe is arranged between the middle parts of the two rows of mechanical ventilation cooling towers and one end of the two rows of mechanical ventilation cooling towers, and the fourth horizontal main pipe is arranged between the middle parts of the two rows of mechanical ventilation cooling towers and the other end of the two rows of mechanical ventilation cooling towers.
4. The mechanical draft cooling tower cluster of claim 3, wherein said cooling water distribution section further comprises a first distribution valve and a second distribution valve;
the first water distribution valve is installed on the first horizontal main pipe, and the second water distribution valve is installed on the third horizontal main pipe.
5. The mechanical draft cooling tower group of claim 2, wherein each mechanical draft cooling tower is provided with an air outlet, at least one water distribution pipe, a packing layer, a water collecting part and an air inlet;
the air outlet is arranged at the top of each mechanical ventilation cooling tower;
each water distribution pipe of the at least one water distribution pipe is arranged in each mechanical ventilation cooling tower and is communicated with the second horizontal main pipe;
the packing layer is arranged in each mechanical ventilation cooling tower and is positioned below the at least one water distribution pipe;
The water collecting part is arranged in each mechanical ventilation cooling tower and is positioned below the packing layer, and the water collecting part is communicated with the water return ditch;
the air inlet is formed in the outer wall of each mechanical ventilation cooling tower and located below the water collecting portion.
6. The mechanical draft cooling tower farm of claim 5, wherein the header includes at least one header plate and a header tank corresponding to each of the at least one header plate;
one end of at least one water collecting plate is fixed on the support frame of the packing layer at intervals, the other end of the at least one water collecting plate is fixed on the corresponding water collecting groove, and each water collecting plate is obliquely arranged;
the water collecting tank corresponding to each water collecting plate is arranged between the packing layer and the upper edge of the air inlet and is vertically communicated with the water return ditch.
7. The mechanical draft cooling tower assembly of claim 5, wherein a wind deflector is disposed at the wind inlet of each mechanical draft cooling tower.
8. The mechanical draft cooling tower assembly of claim 5, wherein at least one spray head is disposed on an outer wall of each water distribution pipe adjacent to said packing layer;
And spraying cooling water to be cooled in each water distribution pipe to the packing layer through the spray head.
9. The mechanical draft cooling tower assembly of claim 5, wherein said each mechanical draft cooling tower is provided with an arc-shaped air guiding wall near the inner wall of said water return channel.
10. The mechanical draft cooling tower assembly according to any one of claims 1 to 9, wherein a connecting and maintenance platform is further provided between said two rows of mechanical draft cooling towers.
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| CN201620497715.7U CN205784679U (en) | 2016-05-26 | 2016-05-26 | A kind of mechanical-draft cooling tower group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366009A (en) * | 2020-03-13 | 2020-07-03 | 中国能源建设集团广东省电力设计研究院有限公司 | Circulating cooling water system arrangement structure |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366009A (en) * | 2020-03-13 | 2020-07-03 | 中国能源建设集团广东省电力设计研究院有限公司 | Circulating cooling water system arrangement structure |
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