CN117490442B - Cooling tower and cooler - Google Patents
Cooling tower and cooler Download PDFInfo
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- CN117490442B CN117490442B CN202311857271.4A CN202311857271A CN117490442B CN 117490442 B CN117490442 B CN 117490442B CN 202311857271 A CN202311857271 A CN 202311857271A CN 117490442 B CN117490442 B CN 117490442B
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- water
- cooler
- cooling
- circulating water
- tower
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- 238000001816 cooling Methods 0.000 title claims abstract description 129
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 326
- 239000007921 spray Substances 0.000 claims abstract description 108
- 239000000498 cooling water Substances 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 238000005507 spraying Methods 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 abstract description 21
- 239000003570 air Substances 0.000 description 95
- 239000010410 layer Substances 0.000 description 33
- 230000001502 supplementing effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
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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
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
-
- 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
-
- 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
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
Abstract
The application relates to the field of air cooling, in particular to a cooling tower and a cooler. The cooler comprises a cooler body, wherein the cooler body comprises a plurality of layers of guide rings which are horizontally overlapped from inside to outside and a connecting bracket for connecting and fixing all the guide rings; the guide ring is provided with an annular first end, an annular second end and a guide inclined plane connected with the first end and the second end, and the guide ring is gradually reduced from the first end to the second end; the gaps between the guide rings of the adjacent layers form ventilation openings, and the ventilation openings are gradually reduced from the first end to the second end of the guide rings; the first end of the vent is used for introducing cooling air, and the second end of the vent is used for receiving spray water. The cooler provided by the application can strengthen the cooling of the spray water by using the cooling air sent into the tower body, reduce the temperature of the spray water and improve the cooling efficiency of the cooling tower; compared with the traditional spray water cooling module, the spray water cooling module can reduce occupied area and space occupation, and reduce equipment cost and operation cost.
Description
Technical Field
The application relates to the air cooling field, in particular to a cooling tower and a cooler.
Background
The cooling tower (The cooling tower) is a device that uses water as a circulating coolant to absorb heat from a system and release it to the atmosphere to reduce the circulating water temperature.
The existing cooling towers are divided into an open cooling tower and a closed cooling tower according to whether circulating water is in contact with air or not. Wherein, the closed cooling tower is an evaporative cooling tower, circulating water flows through the circulating pipe, air flows through the outside of the circulating pipe, and the two cooling towers are not contacted with each other. The water in the reservoir at the bottom of the tower is pumped by the circulating pump and then is sent to the outside of the circulating pipe to be uniformly sprayed. The spray water exchanges heat with the circulating water in the circulating pipe through convection, evaporates on the surface of the circulating pipe to cool the circulating water in the circulating pipe, and reduces the temperature in the cooling tower.
As the heat exchange is continuously performed, the water temperature of the shower water gradually increases, resulting in a decrease in cooling efficiency of the cooling tower. In order to reduce the temperature of the spray water, some cooling towers are also provided with a spray water cooling module, and the temperature of the spray water is reduced by driving the spray water to circulate and exchange heat with ambient air. However, the spray water cooling module generally needs to additionally add a pipeline and a water pump, so that the occupied area of the cooling tower is obviously increased, and the construction cost and the operation cost of the cooling tower are increased.
Disclosure of Invention
The application provides a cooling tower and a cooler, wherein the cooler can strengthen cooling of spray water by cooling air sent into the tower body; compared with the traditional spray water cooling module, the cooler can remarkably reduce occupied area and space occupation, and reduce equipment cost and operation cost.
In a first aspect, the present application provides a cooler, including a cooler body, where the cooler body includes a guide ring horizontally stacked from inside to outside and a connection bracket for connecting and fixing all the guide rings;
the guide ring is provided with a first end, a second end and a guide inclined plane, the first end and the second end are annularly arranged, the guide inclined plane is connected between the first end and the second end, and the guide ring is gradually reduced from the first end to the second end;
a vent is formed in a gap between the adjacent layers of the guide rings, and the vent is gradually reduced from the first end to the second end of the guide ring; the first end of the vent is used for introducing cooling air, and the second end of the vent is used for receiving spray water.
In some embodiments, the cross section of the guide ring is circular, and the connecting bracket comprises a first bracket and a second bracket arranged along the radial direction of the guide ring.
In some embodiments, the first and second brackets are disposed perpendicular to each other.
In some embodiments, the surface of the diversion ramp is provided with a hydrophilic layer.
In some embodiments, a flow guiding rib plate is arranged in the circumferential direction of the flow guiding inclined surface, the flow guiding rib plate extends from the first end to the second end of the flow guiding ring, and the interval between the adjacent flow guiding rib plates is gradually reduced from the first end to the second end of the flow guiding ring.
In some embodiments, the cooler further comprises a fixing bracket arranged on the periphery of the cooler body and used for fixing the cooler body.
In some embodiments, the fixing support comprises a circular plate, the inner wall of the circular plate is fixedly connected with the guide ring on the outermost layer of the cooler body, and a fixing buckle is arranged on the outer wall of the circular plate and is used for being matched with a fixing clamping groove on the inner wall of the cooling tower.
In some embodiments, the cooler body is layered in layers along the axial direction of the baffle ring.
In some embodiments, support rods are connected between adjacent layers of the cooler body.
In a second aspect, the present application provides a cooling tower, using the cooler of any one of the above, the cooling tower further comprising;
the tower body is provided with an air inlet and an air outlet;
the circulating water heat exchanger is provided with a water inlet and a water outlet;
the circulating water inlet pipe is connected with the water inlet, and the circulating water outlet pipe is connected with the water outlet;
the water collector is arranged at the bottom in the tower body and is used for receiving spray cooling water flowing down from the surface of the circulating water heat exchanger;
the spraying assembly is connected with the water collector and is used for extracting cooling water in the water collector and spraying the cooling water to the circulating water heat exchanger;
the cooler is arranged in the tower body and positioned between the circulating water heat exchanger and the water collector, and the second end of the guide ring is arranged facing the circulating water heat exchanger.
In some embodiments, the air outlet is arranged at the top of the tower body, and the air outlet is provided with an exhaust fan.
In some embodiments, the spray assembly includes a sprayer and a spray line connecting the sprayer and the water collector, the spray line extending through the tower and the main section of the spray line being disposed outside the tower.
In some embodiments, the cooling tower satisfies at least one of:
the circulating water inlet pipe is provided with a first temperature sensor for detecting the inlet water temperature of the circulating water;
the circulating water outlet pipe is provided with a second temperature sensor for detecting the outlet water temperature of the circulating water;
the circulating water inlet pipe is provided with a first flow sensor for detecting the inflow flow of circulating water and a first regulating valve for regulating the inflow flow of the circulating water;
the circulating water outlet pipe is provided with a second flow sensor for detecting the water outlet flow of the circulating water and a second regulating valve for regulating the water outlet flow of the circulating water, and is connected with the buffer water storage tank;
the air inlet is provided with a third temperature sensor for detecting the air supply temperature of the cooling air;
the air outlet is provided with a fourth temperature sensor for detecting the exhaust temperature of the cooling air;
the spraying assembly is provided with a fifth temperature sensor for detecting the temperature of spraying water;
the water collector is provided with a sixth temperature sensor for detecting the temperature of the spray cooling water.
The cooler provided by the embodiment of the application can be arranged below the circulating water heat exchanger, the second end surface of the guide ring is arranged towards the circulating water heat exchanger, and the first end surface is arranged towards the cooling air supply direction in the tower body; spray water is sprayed to the surface of the circulating water heat exchanger, exchanges heat with circulating water in the circulating water heat exchanger, rises in temperature, flows to the cooler, enters the ventilation opening from the second end of the guide ring and slowly slides down, and cooling air enters the ventilation opening from the first end of the guide ring, and the spray water and the circulating water exchange heat in the ventilation opening in a countercurrent manner; the flow guiding inclined plane delays the falling speed of the spray water, so that the heat exchange time of the spray water and cooling air is prolonged, and the temperature of the spray water is reduced; on the other hand, the convergent setting of vent from the first end of water conservancy diversion ring to the second end makes the cooling wind take place the throttle cooling when flowing to the second end along the first end of vent, reduces the temperature of cooling wind, strengthens the heat transfer effect with the shower water, further reduces the temperature of shower water.
Compared with the prior art, the technical scheme has the following advantages: the cooler has a simple structure, can be installed and fixed in the tower body, and does not increase the occupied area additionally; the arrangement of a circulating pipeline and a water pump is reduced, the equipment cost is reduced, the arrangement of a cooler only increases the air supply resistance of cooling air to a certain extent, and compared with a water pump for driving spray water to circularly cool, the energy consumption and the operation cost can be obviously reduced; in addition, the cooler body is in the same or similar horizontal surface layer by the structure that a plurality of guide rings are horizontally overlapped from inside to outside, so that the axial size of the cooler body along the guide rings is obviously reduced, and the space occupation of the cooler body and the cooler is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
FIG. 1 is a schematic diagram of a chiller provided in an embodiment of the present application;
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is a schematic view of the cooler body of FIG. 1;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a side view of FIG. 3;
FIG. 6 is a schematic view of a partial section of the stationary bracket of FIG. 1;
FIG. 7 is a state diagram of spray water droplets when the diversion ramp is not provided with a hydrophilic layer;
FIG. 8 is a view showing the state of the spray water droplets on the hydrophilic layer of the diversion ramp;
FIG. 9 is a schematic diagram of a cooling tower provided in an embodiment of the present application;
FIG. 10 is a partial schematic view of a structure in which the inner wall surface of the cooling tower cooperates with the fixing bracket.
Reference numerals illustrate:
1-an exhaust fan; 2-a sprayer; 3-a circulating water heat exchanger; 4-a spray pipeline; a 5-cooler; 51-a cooler body; 511-a deflector ring; 512-connecting the brackets; 52-fixing the bracket; 521-fixing buckle; 6, an air inlet; 7-spraying a water pump; 8-a water collector; 9-a water supplementing pipeline; 10-a water supplementing valve; 11-a second regulating valve; 12-a second temperature sensor; 13-a drainage pump; 14-buffering a water storage tank; 15-a circulating water outlet pipe; 16-a first regulating valve; 17-a first temperature sensor; 18-a water inlet pump; 19-a circulating water inlet pipe; 20-tower body; 201-fixing the clamping groove.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure experiences a position flip or a change in attitude or a change in state of motion, then the indications of these directivities correspondingly change, for example: an element described as "under" or "beneath" another element or feature would then be oriented "over" or "above" the other element or feature. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
In order to solve the technical problems of large occupied area, high equipment cost and high operation cost of a spray water cooling module of a cooling tower in the prior art, the application provides the cooling tower and a cooler 5, wherein the cooler 5 can strengthen the cooling of spray water by means of cooling air sent into a tower body 20; and compared with the traditional spray water cooling module, the cooler 5 can obviously reduce the occupied area and reduce the equipment cost and the operation cost.
It is noted that the circulating water in the present application refers to water which circulates in the circulating water heat exchanger 3 and is cooled; the spray water or spray cooling water or cooling water is water sprayed to the surface of the circulating water heat exchanger 3, and the circulating water heat exchanger 3 exchanges heat with the circulating water in a convection way, and circulates between the spray assembly and the water collector 8, and the cooling air is air flow which is sent into the tower body 20 to cool the spray water and the circulating water and promote evaporation of the spray water. In the normal operation process of the cooling tower, the circulating water is not in direct contact with the spray water and the cooling air.
As shown in fig. 1 to 5, the cooler 5 provided in the embodiment of the present application includes a cooler body 51, where the cooler body 51 includes a connection bracket 512 and a plurality of layers of guide rings 511 horizontally stacked from inside to outside according to a certain gap, and the connection bracket 512 plays a role in connecting and fixing all the guide rings 511; all the guide rings 511 are substantially in the same horizontal plane, so that the axial dimension of the cooler body 51 along the guide rings 511 is significantly reduced, and the space occupation of the cooler body 51 and the cooler 5 is reduced. Each layer of guide ring 511 from inside to outside is in an annular tapered arrangement, specifically, the guide ring 511 has an annular first end and an annular second end, the first end and the second end are substantially identical in shape, and the first end and the second end of the guide ring 511 are connected through a guide inclined plane. The guide rings 511 taper from the first end to the second end, and gaps between the guide inclined surfaces of the guide rings 511 of adjacent layers form ventilation openings, which taper along the direction from the first end to the second end of the guide rings 511. The first end of the ventilation opening is used for introducing cooling air, and the second end of the ventilation opening is used for receiving spray water.
The first end of the vent refers to the end of the vent near the first end of the baffle ring 511, and the second end of the vent refers to the end of the vent near the second end of the baffle ring 511. The plurality of guide rings 511 are horizontally stacked, and all the guide rings 511 are substantially in the same horizontal plane layer specifically means: the first ends of all deflector rings 511 are located at or approximately at the same level and the second ends of all deflector rings 511 are located at or approximately at the same level. Referring to fig. 9 in combination, the cooler 5 may be applied to a cooling tower to cool spray water. The cooler 5 is arranged below the circulating water heat exchanger 3 in the cooling tower body 20 when in use, and is arranged towards the circulating water heat exchanger 3 by the second end surface of the ventilation opening, namely towards the top of the tower body 20; with the first end of the vent opening facing the direction of delivery of the cooling wind, i.e. towards the bottom of the tower 20. It should be noted that the air inlet 6 of the tower 20 is located below the first end of the air vent, i.e. the bottom of the cooler 5 is at least higher than the air inlet 6 of the tower 20.
When cooling the circulating water, the cooling tower sprays cooling water towards the surface of the circulating water heat exchanger 3 by means of the spraying assembly, the sprayed cooling water exchanges heat with the circulating water flowing in the circulating water heat exchanger 3 in a convection way through the circulating water heat exchanger 3, part of spraying water evaporates and absorbs heat on the surface of the circulating water heat exchanger 3, cooling of the circulating water is enhanced, and meanwhile, the temperature in the tower body 20 is reduced. Most of the spray water flows through the surface of the circulating water heat exchanger 3 and falls down to the water collector 8 at the bottom of the tower body 20 under the action of gravity. The cooler 5 arranged below the circulating water heat exchanger 3 can receive the falling spray water, and the spray water enters the ventilation opening from the second end of the ventilation opening of the cooler 5 and slowly slides down along the diversion inclined plane.
The cooling air is sent into the tower body 20 from the air inlet 6 at the bottom of the tower body 20 and flows upwards from bottom to top along the tower body 20, so that when flowing through the circulating water heat exchanger 3, the cooling air exchanges heat with circulating water flowing in the circulating water heat exchanger 3 in a countercurrent manner through the circulating water heat exchanger 3, and meanwhile, the cooling air exchanges heat with spray water in a countercurrent manner, so that a certain cooling effect on the spray water is achieved, and the cooling air can also promote the evaporation and heat absorption of the spray water on the surface of the circulating water heat exchanger 3 and in the tower body 20. Because the cooler 5 is arranged below the circulating water heat exchanger 3, the cooling air firstly flows through the cooler 5 when flowing upwards to the circulating water heat exchanger 3, enters the ventilation opening through the first end of the ventilation opening of the cooler 5, exchanges heat with the spray water sliding along the diversion inclined plane, and reduces the temperature of the spray water.
Because the vent sets up to the structure from first end to second end convergent, air can produce throttle and pressure drop when the convergent vent of flowing through, makes cooling air temperature reduce to some extent to increase the heat transfer difference with the shower water that the water conservancy diversion inclined plane falls, strengthen the convection heat transfer with between the shower water, reduce the temperature of shower water. The flow guiding inclined plane can delay the falling speed of the spray water, prolong the heat exchange time of the spray water and the cooling air when flowing through the ventilation opening, increase the heat exchange quantity of the cooling air and the spray water, further reduce the temperature of the spray water, further strengthen the heat exchange between the spray water and the circulating water, and improve the cooling efficiency of the cooling tower.
The cooler 5 can be installed in the tower body 20 of the cooling tower, and the temperature of the spray water is reduced by enhancing the heat exchange between cooling air and the spray water, so that the extra occupied area is not increased, and a power part such as a water pump is not required to drive the spray water to circularly cool. The setting of cooler 5 has only increased the air supply resistance of cooling wind to a certain extent, has reduced area, has reduced equipment cost and operation energy consumption for traditional shower water cooling module that utilizes pipeline and water pump to shower water circulation cooling to reduce running cost.
In some embodiments, the cross section of the guide ring 511 is circular, that is, the guide ring 511 is integrally formed with a cylindrical structure with a diameter gradually decreasing from its first end to its second end, and the connecting bracket 512 includes at least a first bracket and a second bracket, where the first bracket and the second bracket preferably adopt a rib structure extending along the radial direction of the guide ring 511, and the first bracket and the second bracket are both connected to all the guide rings 511. The first and second brackets are generally disposed perpendicular to each other, i.e., the first and second brackets uniformly divide the annular vent opening between adjacent layers of baffle rings 511 into four sets of fan ring structures. The connecting bracket 512 can be further provided with a third bracket or even a fourth bracket according to the requirement, and the connecting bracket can be flexibly arranged according to the requirement of the connecting fixing strength between the adjacent layer of the flow guiding rings 511.
It is understood that the cross-section of baffle ring 511 is not limited to a circular configuration, but may be circular, oval, elliptical, or even other irregular shapes, as long as a vent tapering from a first end to a second end can be formed between baffle rings 511 of adjacent layers. The advantage of the regular circular cross section of the deflector ring 511 is that it facilitates the shaping of the cooler 5 and the uniform intake of the vents.
Further, the diversion inclined plane is also provided with a hydrophilic layer. When the diversion slope of the diversion ring 511 is provided with a hydrophilic layer, as shown in fig. 8, the sprayed water drops are easier to spread on the surface of the diversion slope, the included angle between the tangential direction of the outer outline of the water drops and the guiding slope outside the water drops is larger (larger than 90 degrees, as shown in fig. 8, 100.35 degrees), and a plurality of water drops are easy to form a liquid film layer on the surface, so that the convection heat exchange area of spray water and cooling air is increased, and the heat exchange between the cooling air and the spray water is enhanced. Compared with the flow guiding inclined plane without the hydrophilic layer, the spray water is easier to form a liquid drop shape on the flow guiding inclined plane rather than spread out, the included angle between the water drop and the surface of the flow guiding inclined plane is smaller (47.97 degrees as shown in fig. 7), and a plurality of water drops are not easy to form a liquid film layer on the surface, so that the water drops are easy to slide down and the convection heat exchange area of the spray water and cooling wind is reduced, and the heat exchange effect of the spray water and the cooling wind is poorer than that of the flow guiding inclined plane with the hydrophilic layer.
In some embodiments, the circumference of the diversion slope is further connected with a diversion rib plate, the diversion rib plate extends along the direction from the first end of the diversion ring 511 to the second end of the diversion ring 511, and the distance between the adjacent diversion rib plates is gradually reduced from the first end of the diversion ring 511 to the second end. Illustratively, the flow guiding rib plates are disposed on the flow guiding inclined plane of the outer periphery of the flow guiding ring 511 of each layer, the flow guiding rib plates of the outer periphery of the same flow guiding ring 511 divide the annular tapered ventilation opening of the outer periphery of the flow guiding ring 511 into a plurality of ventilation sub-openings, the radial dimension of the ventilation sub-openings along the flow guiding ring 511 is tapered from the first end of the flow guiding ring 511 to the second end of the flow guiding ring 511, and the circumferential dimension of the ventilation sub-openings along the flow guiding ring 511 is also tapered from the first end of the flow guiding ring 511 to the second end of the flow guiding ring 511. The arrangement of the flow guide rib plates divides the annular tapered ventilation opening into a plurality of ventilation sub-openings, which is favorable for uniformly dispersing cooling air and spray water drops, further reduces the air temperature of the cooling air through throttling, increases the temperature difference between the cooling air and spray water, strengthens the convection heat exchange effect of the cooling air and spray water on the flow guide inclined plane, and further reduces the temperature of the spray water.
Referring to fig. 1, 6 and 10 in combination, the cooler 5 further includes a fixing bracket 52 provided at an outer periphery of the cooler body 51 for mounting and fixing the cooler body 51 into the cooling tower. Illustratively, the fixing bracket 52 may be a circular plate, the inner wall of which is fixedly connected with the guide ring 511 on the outermost layer of the cooler body 51, and the outer wall of which is provided with a plurality of fixing buckles 521, so as to fix the cooler 5 relative to the cooling tower by matching the fixing buckles 521 with the fixing slots 201 formed on the inner wall surface of the cooling tower.
In some embodiments, in order to enhance the heat exchange effect of the cooling wind and the shower water at the cooler 5, the cooler body 51 may be provided not only in a plurality of groups side by side but also in a plurality of layers stacked in the axial direction of the deflector ring 511. When the cooler body 51 is provided in multiple layers in the axial direction of the guide ring 511, a fixing bracket 52 may be provided at the outermost layer of the cooler body 51 of each layer. While supporting bars may be provided between the cooler bodies 51 of the adjacent layers in order to maintain the spacing between the cooler bodies 51 of the adjacent layers and the overall strength of the cooler 5. In order not to affect the flow of cooling air, and to reduce the interference of the support rods with the ventilation openings, the support rods are typically connected between the outermost deflector rings 511 of the cooler body 51.
Referring to fig. 9 and 10, the embodiment of the present application further provides a cooling tower, and the cooler 5 provided in the above embodiment is applied. The cooling tower also comprises a tower body 20, a circulating water heat exchanger 3, a circulating water inlet pipe 19, a circulating water outlet pipe 15, a water collector 8 and a spraying assembly. The tower body 20 is provided with an air inlet 6 and an air outlet, the air outlet is usually arranged at the top of the tower body 20, and the air inlet 6 is symmetrically arranged at two sides of the bottom of the tower body 20. The air inlets 6 are used for introducing cooling air, the cooling air fed into the tower body 20 from the air inlets 6 at two sides of the bottom of the tower body 20 is mixed and then is conveyed to the top of the tower body 20 from the bottom of the tower body 20, spray water and circulating water are cooled and then are discharged from the air outlet at the top of the tower body 20, and in order to accelerate the discharge of the cooling air and improve the convection heat exchange effect, the top of the tower body 20 can be provided with the exhaust fan 1 as required.
The circulating water heat exchanger 3 is fixedly arranged at an upper position in the tower body 20, and the circulating water heat exchanger is used for introducing circulating water, spray water and cooling air for heat exchange so as to cool the circulating water. The circulating water heat exchanger 3 is provided with a water inlet and a water outlet, the circulating water inlet pipe 19 penetrates through and extends into the tower body 20 and is connected with the water inlet of the circulating water heat exchanger 3, the circulating water outlet pipe 15 penetrates through and extends into the tower body 20 and is connected with the water outlet of the circulating water heat exchanger 3, circulating water to be cooled is introduced into the circulating water heat exchanger 3 by means of the circulating water inlet pipe 19, and the circulating water cooled in the circulating water heat exchanger 3 is discharged by the circulating water outlet pipe 15.
The water collector 8 is arranged at the bottom of the tower body 20 and is used for receiving and collecting spray water sprayed on the surface of the circulating water heat exchanger 3 and falling to the bottom of the tower. One end of the spraying component is connected with the water collector 8, and the other end of the spraying component is arranged above the circulating water heat exchanger 3 and is used for sucking cooling water in the water collector 8 to spray to the surface of the circulating water heat exchanger 3.
The cooler 5 is disposed in the tower body 20 between the lower part of the circulating water heat exchanger 3 and the upper part of the water collector 8, the cooler 5 is disposed with the second end of the guide ring 511 facing the circulating water heat exchanger 3, and the first end of the cooler 5 is located above the air inlet 6. When the cooling air fed into the tower body 20 from the air inlet 6 flows towards the top of the tower, the cooling air firstly enters from the first end of the air vent of the cooler 5, and the spray water flowing towards the diversion slope of the diversion ring 511 is cooled down and then flows towards the circulating water heat exchanger 3, and the heat is exchanged by the circulating water heat exchanger 3 and then is discharged from the air outlet of the top of the tower. When the spray water which exchanges heat and heats up with the circulating water heat exchanger 3 flows down to the bottom of the tower, the spray water flows down to the diversion inclined plane from the first end of the diversion ring 511, a water film is formed on the diversion inclined plane and fully exchanges heat and cools down with cooling air, after cooling down, the spray cooling water falls into the water collector 8 to be recovered, the water temperature of the spray water sprayed to the circulating water heat exchanger 3 again through the spray assembly is obviously reduced, the cooling effect on the circulating water is improved, and the cooling efficiency of the cooling tower is improved.
In some embodiments, the spray assembly comprises a sprayer 2 arranged above the circulating water heat exchanger 3 and a spray pipeline 4 for connecting the sprayer 2 and the water collector 8, wherein the spray pipeline 4 is provided with a spray water pump 7, and spray cooling water collected in the water collector 8 is conveyed to the sprayer 2 through the spray water pump 7 and the spray pipeline 4 to spray to the circulating water heat exchanger 3. The spray pipeline 4 can be arranged on the inner wall of the tower body 20, so that the holes of the tower body 20 are reduced; in order to further reduce the water temperature of the spray water and reduce the interference to the spray water and cooling air in the tower body 20, the spray pipeline 4 can also be used for arranging the main body section outside the tower body 20, and the two ends of the spray pipeline 4 penetrate through the tower body 20 and are respectively connected with the water collector 8 and the sprayer 2 so as to further reduce the temperature of the spray water in the spray water pipe by using natural air outside the tower body 20.
In addition, the part of the spray water pipe outside the tower body 20 can be connected with an air cooling heat exchanger in series according to the requirement, and the convection heat exchange area of the spray water and natural wind is increased by means of the air cooling heat exchanger.
Considering that spray water gradually reduces due to evaporation and drifting from an air outlet in the circulation process, in order to keep the spray water quantity and meet the spray requirement of a spray assembly, the cooling tower is further provided with a water supplementing pipeline 9, and the water supplementing pipeline 9 penetrates through the tower body 20 and is connected with the water collector 8. The water supplementing pipeline 9 is also provided with a water supplementing pump and a water supplementing valve 10, when the liquid level in the water collector 8 is lower than a certain depth, the water supplementing valve 10 is opened, and water is supplemented into the water collector 8 by means of the water supplementing pump and the water supplementing pipeline 9. In addition, the water collector 8 can be internally provided with a liquid level detection module according to the requirement so as to timely supplement water into the water collector 8.
The circulation water inlet pipe 19 may be provided with a first temperature sensor 17 for detecting the inlet water temperature of the circulation water, a first flow sensor for detecting the inlet water flow rate of the circulation water, and a first regulating valve 16 for regulating the inlet water flow rate of the circulation water; the circulation outlet pipe 15 may be provided with a second temperature sensor 12 for detecting the outlet water temperature of the circulation water, a second flow sensor for detecting the outlet water flow rate of the circulation water, and a second regulating valve 11 for regulating the outlet water flow rate of the circulation water, so as to timely regulate the spray water flow rate and the cooling air flow rate according to the inlet water temperature of the circulation water detected by the first temperature sensor 17, the inlet water flow rate of the circulation water detected by the first flow sensor, the outlet water temperature of the circulation water detected by the second temperature sensor 12, and the outlet water flow rate of the circulation water detected by the second flow sensor. Or the flow of the circulating water is timely regulated by means of the first regulating valve 16 and the second regulating valve 11.
In addition, the circulating water inlet pipe 19 is provided with a water inlet pump 18, the circulating water outlet pipe 15 is provided with a water discharge pump 13, the circulating water outlet pipe 15 is also connected in series with a buffer water storage tank 14, the buffer water storage tank 14 is arranged between the water inlet pump 18 and the water discharge pump 13, and when the circulating water flow delivered by the water inlet pump 18 is greater than the circulating water flow discharged by the water discharge pump 13, a proper amount of circulating water can be stored through the buffer water storage tank 14.
The air inlet 6 of the tower 20 may be provided with a third temperature sensor for detecting the temperature of the cooling air fed into the tower 20; the air outlet of the tower body 20 may be provided with a fourth temperature sensor for detecting the temperature of the cooling air discharged from the tower body 20, so as to adjust the air supply amount of the tower body 20 in time according to the air supply temperature and the air exhaust temperature. Illustratively, when the supply air temperature is higher than the first preset temperature, it is necessary to adjust the supply air amount of the cooling air to be increased; when the air supply temperature is lower than the first preset temperature, the air supply quantity of the cooling air can be properly adjusted and reduced, and the energy consumption of the air supply device is reduced. Or when the exhaust temperature of the air outlet is higher than the second preset temperature, the air supply amount of the cooling air can be moderately increased, and the exhaust temperature of the air outlet is reduced; when the exhaust temperature of the air outlet is lower than the preset temperature, the air supply quantity of cooling air can be properly reduced, and the energy consumption of the air supply device is reduced.
Further, the spray assembly may be further provided with a fifth temperature sensor for detecting the temperature of spray water, or a sixth temperature sensor for detecting the temperature of spray cooling water flowing into the water collector 8 after being cooled by the cooler 5 is provided at the water collector 8. The air supply flow is timely adjusted by detecting the water temperature of spraying water at the spraying assembly or the water temperature of spraying cooling water in the water collector 8, so that the water temperature is ensured to be sprayed, and the cooling requirement of circulating water is met.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. The cooler is characterized by comprising a cooler body, wherein the cooler body comprises guide rings and connecting brackets, the guide rings are horizontally overlapped from inside to outside, and the connecting brackets are used for connecting and fixing all the guide rings;
the guide ring is provided with a first end, a second end and a guide inclined plane, the first end and the second end are annularly arranged, the guide inclined plane is connected between the first end and the second end, and the guide ring is gradually reduced from the first end to the second end;
a vent is formed in a gap between the adjacent layers of the guide rings, and the vent is gradually reduced from the first end to the second end of the guide ring; the first end of the vent is used for introducing cooling air, and the second end of the vent is used for receiving spray water.
2. The cooler of claim 1, wherein the guide ring has a circular cross section, and the connection bracket comprises a first bracket and a second bracket disposed along a radial direction of the guide ring.
3. The cooler of claim 2, wherein said first bracket and said second bracket are disposed perpendicular to each other.
4. The cooler of claim 1, wherein a surface of said flow guiding chamfer is provided with a hydrophilic layer.
5. The cooler of any one of claims 1-4, wherein a flow guiding rib plate is circumferentially arranged on the flow guiding inclined surface, the flow guiding rib plate extends from a first end to a second end of the flow guiding ring, and a distance between adjacent flow guiding rib plates is gradually reduced from the first end to the second end of the flow guiding ring.
6. The cooler of any one of claims 1-4, further comprising a fixing bracket provided at an outer periphery of said cooler body for fixing said cooler body.
7. The cooler according to claim 6, wherein the fixing bracket comprises a circular plate, the inner wall of the circular plate is fixedly connected with the guide ring on the outermost layer of the cooler body, and a fixing buckle is arranged on the outer wall of the circular plate and is used for being matched with a fixing clamping groove on the inner wall of the cooling tower.
8. The cooler of claim 1, wherein said cooler body is layered in layers along an axial direction of said deflector ring.
9. The cooler of claim 8, wherein support bars are connected between adjacent layers of said cooler body.
10. A cooling tower, characterized in that it uses the cooler according to any one of claims 1-9, said cooling tower further comprising;
the tower body is provided with an air inlet and an air outlet;
the circulating water heat exchanger is provided with a water inlet and a water outlet;
the circulating water inlet pipe is connected with the water inlet, and the circulating water outlet pipe is connected with the water outlet;
the water collector is arranged at the bottom in the tower body and is used for receiving spray cooling water flowing down from the surface of the circulating water heat exchanger;
the spraying assembly is connected with the water collector and is used for extracting cooling water in the water collector and spraying the cooling water to the circulating water heat exchanger;
the cooler is arranged in the tower body and positioned between the circulating water heat exchanger and the water collector, and the second end of the guide ring is arranged facing the circulating water heat exchanger.
11. The cooling tower of claim 10, wherein the air outlet is provided at a top of the tower body, and the air outlet is provided with an exhaust fan.
12. The cooling tower of claim 10, wherein the spray assembly includes a sprayer and a spray line connecting the sprayer and the water collector, the spray line extending through the tower body and a main section of the spray line being disposed outside the tower body.
13. The cooling tower of claim 10, wherein the cooling tower satisfies at least one of:
the circulating water inlet pipe is provided with a first temperature sensor for detecting the inlet water temperature of the circulating water;
the circulating water outlet pipe is provided with a second temperature sensor for detecting the outlet water temperature of the circulating water;
the circulating water inlet pipe is provided with a first flow sensor for detecting the inflow flow of circulating water and a first regulating valve for regulating the inflow flow of the circulating water;
the circulating water outlet pipe is provided with a second flow sensor for detecting the water outlet flow of the circulating water and a second regulating valve for regulating the water outlet flow of the circulating water, and is connected with the buffer water storage tank;
the air inlet is provided with a third temperature sensor for detecting the air supply temperature of the cooling air;
the air outlet is provided with a fourth temperature sensor for detecting the exhaust temperature of the cooling air;
the spraying assembly is provided with a fifth temperature sensor for detecting the temperature of spraying water;
the water collector is provided with a sixth temperature sensor for detecting the temperature of the spray cooling water.
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| CN202311857271.4A CN117490442B (en) | 2023-12-29 | 2023-12-29 | Cooling tower and cooler |
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| CN202311857271.4A CN117490442B (en) | 2023-12-29 | 2023-12-29 | Cooling tower and cooler |
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| CN117490442A (en) | 2024-02-02 |
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