CN211060698U

CN211060698U - Counterflow cooling tower

Info

Publication number: CN211060698U
Application number: CN201921520434.9U
Authority: CN
Inventors: 陆洪新
Original assignee: Jiangsu Wuming Cooling Tower Co ltd
Current assignee: Jiangsu Wuming Cooling Tower Co ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-07-21
Anticipated expiration: 2029-09-09

Abstract

The utility model provides a counter-current cooling tower, it includes the tower body, motor and speed reducer, the fan, the dryer, a plurality of multidimension shape dehydrator, spray water distribution system, the wall flow canceller, a plurality of honeycomb rectifiers, the splash guard, the air intake, the catch basin, motor and speed reducer, fan and dryer are located the tower body top, the tower body top just is located the dryer below and is equipped with multidimension shape dehydrator, spray water distribution system installs in the tower body, honeycomb rectifier is located and sprays water distribution system below, the wall flow canceller sets up around in the tower body, and be located the below of dispersion shower nozzle horizontal direction, honeycomb rectifier below is the air intake, the splash guard is located the front and back both sides limit top of air intake, the catch basin is located the lower part of tower body, and be located the air intake below; the beneficial effects of the utility model reside in that, the cooling effect is stable, and better, the energy-concerving and environment-protective of low maintenance.

Description

Counterflow cooling tower

Technical Field

The utility model relates to a circulating water cooling tower field especially relates to countercurrent cooling tower.

Background

The cooling tower utilizes the principles of evaporative heat dissipation, convective heat transfer, radiant heat transfer and the like to dissipate water which is generated in industry or in a refrigeration air conditioner and is cooled by utilizing heat exchange of circulating water after flowing and contacting with unsaturated air, and the water is lifted by a water pump to form a heat exchange system so as to ensure the normal operation of the system.

The cooling tower in the prior art at home and abroad widely adopts the traditional cooling tower with a fixed reflection spray head and high-density filler, the cooling tower with the high-density filler with various waveforms appears, the cooling efficiency of the counter-flow type filler cooling tower is difficult to maintain and improve from the development and use conditions, the filler is easy to age, scale and have large resistance when the cooling tower runs, the cooling effect is obviously reduced after the scale is formed, a large amount of scale remover is required to be continuously added for removing the scale, the hydrophilic property of the filler is maintained to maintain the cooling effect, and the operation and maintenance cost is high.

The utility model discloses the countercurrent cooling tower can ensure to improve cold efficiency when the operation to the operation maintenance cost is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an energy-concerving and environment-protective adverse current cooling tower that cooling effect is stable, and better, the low maintenance.

According to one aspect of the utility model, a counter-flow cooling tower is provided, which comprises a tower body, a motor, a speed reducer, a fan, an air duct, a plurality of multidimensional water removers, a jet water distribution system, a wall flow eliminator, a plurality of honeycomb rectifiers, a splash guard, an air inlet and a water collecting tank; the motor, the speed reducer, the fan and the air cylinder are arranged at the top end of the tower body, the multidimensional water remover is arranged at the top end of the tower body and below the air cylinder, and the injection water distribution system is arranged in the tower body and below the multidimensional water remover frame; the honeycomb rectifier is positioned below the jet water distribution system and comprises a jet water distribution pipe, a plurality of dispersion nozzles and a water inlet, the water inlet is communicated with the jet water distribution pipe and positioned at the lower part of the tower body, and the dispersion nozzles are connected to the jet water distribution pipe; the wall flow eliminator is arranged around the inside of the tower body and is positioned below the dispersing spray head in the horizontal direction, the air inlet is arranged below the honeycomb rectifier, the splash shields are arranged above the front side edge and the rear side edge of the air inlet, and the water collecting tank is arranged at the lower part of the tower body and is positioned below the air inlet; the dispersion sprayer comprises a nozzle, a first splash disc, a second splash disc and a water dividing head which are coaxially arranged from top to bottom, the diameters of the first splash disc, the second splash disc and the water dividing head are gradually reduced, a first through hole is formed in the center of the first splash disc, a second through hole is formed in the center of the second splash disc, the diameters of the nozzle, the first through hole and the second through hole are gradually reduced, a plurality of first oblique water dividing teeth are uniformly distributed on the edge of the first splash disc, a plurality of second oblique water dividing teeth are uniformly distributed on the edge of the second splash disc, and the first oblique water dividing teeth and the second oblique water dividing teeth are opposite in deviation.

Therefore, the first inclined water distribution teeth and the second inclined water distribution teeth which are opposite in deviation are arranged, the diffusivity of water sprayed from the water splashing disks in the longitudinal direction can be improved, the water sprayed from each water splashing disk is divided into multiple layers, the water sprayed by the spray head in unit time can be improved and divided into more water drops, the sprayed water drops are more uniform, the contact area of the water and air is increased, and the heat exchange efficiency of the cooling tower is greatly improved.

In some embodiments, the multi-dimensional dehydrator is formed by bonding a multi-dimensional sheet and a flat sheet into a hexagonal honeycomb structure. The dewatering efficiency is higher, the strength is high, the deformation is not easy, and the service life is longer than that of the traditional dewaterer.

In some embodiments, the honeycomb rectifier is a hexagonal honeycomb structure bonded from a plurality of honeycomb curved pieces. The air guide function is realized, so that air flow uniformly enters the tower cavity without generating vortex flow, and fine water drops uniformly fall back to the honeycomb rectifier under the action of gravity to fall into the water collecting tank after secondary cooling.

In some embodiments, the first and second angled cutwater teeth are both triangular in cross-section. Therefore, the surface of the inclined water dividing tooth is a plane, when water flow impacts the upper surface of the inclined water dividing tooth, the inclined water dividing tooth is divided into more water drops, and the diffusion degree of water sprayed from the water splashing disc in the longitudinal direction can be further improved.

In some embodiments, the first angled dividing tooth bottom surface is parallel to the first splash pan bottom surface. Therefore, the splitting degree of the water flow after impacting the first inclined water dividing tooth can be further improved.

In some embodiments, the second angled dividing tooth bottom surface is parallel to the second splash pan bottom surface. Therefore, the splitting degree of the water flow after impacting the second inclined water dividing tooth can be further improved.

In some embodiments, the first splash plate and the second splash plate are both cone structures.

In some embodiments, the first splash plate is provided with a first nozzle coaxially towards the nozzle at the first through hole. Therefore, the water sprayed on the first splash plate is divided into a plurality of layers, and the diffusion degree of the water sprayed on the first splash plate in the longitudinal direction is further improved.

In some embodiments, the second splash plate is provided with a second nozzle coaxially arranged towards the nozzle at the second through hole. Therefore, the water sprayed on the second splash plate is divided into a plurality of layers, and the diffusion degree of the water sprayed on the second splash plate in the longitudinal direction is further improved.

In some embodiments, the water diversion head is a conical structure, and an inward-concave shoulder is annularly arranged on the side surface of the water diversion head. Therefore, the water flow flowing down from the second through hole is split into smaller water drops by the water dividing head and the shoulder, and the hollow phenomenon is reduced.

In some embodiments, the dividing head has a plurality of arc-shaped grooves distributed circumferentially on the surface below the shoulder. From this, partial rivers flow down from the arc recess, and rotatory division can avoid the cavity phenomenon of shower nozzle water spray almost completely, has improved the heat transfer effect.

In some embodiments, a nozzle tube is inserted into the nozzle. Therefore, the nozzle pipe can be suitable for cooling towers with different sizes by inserting nozzle pipes with different diameters.

Drawings

FIG. 1 is a schematic structural view of a counter-flow cooling tower according to the present invention;

FIG. 2 is a perspective view of the dispenser of the present invention;

fig. 3 is a schematic structural view of a first splash plate of the dispersion nozzle of the present invention;

fig. 4 is a schematic structural view of a second splash plate of the dispersion nozzle of the present invention;

fig. 5 is a top view of the water dividing head of the dispersing nozzle of the present invention;

fig. 6 is a side view of the water distribution head of the dispersing nozzle of the present invention;

FIG. 7 is a schematic structural view of a cooling tower nozzle provided with a nozzle pipe according to the present invention;

FIG. 8 is a front view of the multi-dimensional dehydrator structure of the present invention;

FIG. 9 is a schematic view of the multi-dimensional dehydrator of the present invention;

FIG. 10 is a front view of the honeycomb rectifier structure of the present invention;

fig. 11 is a schematic structural view of the honeycomb rectifier of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

Fig. 1 to 11 schematically show a counter-flow cooling tower according to an embodiment of the present invention, as shown in fig. 1 to 3, the counter-flow cooling tower includes a tower body 1, a motor and a speed reducer 2, a fan 3, an air duct 4, a plurality of multi-dimensional water eliminators 5, a spray water distribution system 6, a wall-flow eliminator (not shown), a plurality of honeycomb rectifiers 8, a splash guard 7, an air inlet 10, and a water collecting tank 11.

Motor and speed reducer 2, fan 3, dryer 4 are installed on 1 top of tower body, and motor and speed reducer 2 are connected with fan 3, and motor and speed reducer 2 are located inside dryer 4 with fan 3. A multidimensional water eliminator frame 12 is welded at the top end of the tower body 1 and below the air duct 4, and multidimensional water eliminators 5 are evenly distributed on the plane of the multidimensional water eliminator frame 12. The multi-dimensional dehydrator 5 is formed by bonding a multi-dimensional sheet 51 and a flat sheet 52 into a hexagonal honeycomb structure, and has the advantages of good dehydration efficiency, high strength, no deformation and longer service life than the traditional dehydrator. The injection water distribution system 6 is arranged in the tower body 1 and is positioned below the multidimensional water trap frame 12.

The spraying water distribution system 6 comprises a spraying water distribution pipe 61, a plurality of dispersing nozzles 9 and a water inlet 63, the water inlet 63 is in flange communication with the spraying water distribution pipe 61 and is positioned at the lower part of the tower body 1, and the dispersing nozzles 9 are in flange connection with the spraying water distribution pipe 61.

The middle of the tower body 1 is welded with a honeycomb rectifier frame 13, the honeycomb rectifier frame 13 is positioned below the dispersion spray nozzle 9, the honeycomb rectifiers 8 are uniformly distributed on the plane of the whole honeycomb rectifier frame 13, a space for countercurrent contact and heat exchange of ejected fine water drops and unsaturated air is arranged between the dispersion spray nozzle 9 and the honeycomb rectifiers 8, the honeycomb rectifiers 8 are hexagonal honeycomb structures formed by bonding a plurality of honeycomb curved sheets 81, air flow can uniformly enter a tower cavity without generating vortex, the relative flow rate of gas-liquid contact area is increased, the fine water drops ejected by the dispersion spray nozzle 9 are not aggregated, the water drops are uniformly distributed and fall, and the heat exchange with the unsaturated air is fully performed.

The cooling tower spray head comprises a nozzle 91, a first splash disc 92, a second splash disc 93 and a water distribution head 94 which are coaxially arranged from top to bottom, the nozzle 91 is communicated with the spray water distribution pipe 61, and the nozzle 91, the first splash disc 92, the second splash disc 93 and the water distribution head 94 can be fixedly connected through connecting arms in sequence.

The diameters of the first splash plate 92, the second splash plate 93, and the water dividing head 94 are gradually reduced. The first through hole 921 is provided at the center of the first splash plate 92, the second through hole 931 is provided at the center of the second splash plate 93, and the diameters of the nozzle 91, the first through hole 921 and the second through hole 931 are gradually reduced. Therefore, water sprayed by the spray head can be sputtered on the first water splashing disc 92, the second water splashing disc 93 and the water dividing head 94 in sequence, and is divided into a large number of small water drops, and the heat exchange effect of the water drops and air is improved.

A plurality of first oblique water distributing teeth 922 are uniformly distributed on the edge of the first water splashing disc 92, a plurality of second oblique water distributing teeth 932 are uniformly distributed on the edge of the second water splashing disc 93, and the deviation of the first oblique water distributing teeth 922 and the deviation of the second oblique water distributing teeth 932 are opposite. Wherein, in one embodiment, the first angled diversion tooth 922 deflects in a right-hand direction and the second angled diversion tooth 932 deflects in a left-hand direction when viewed from the nozzle 91 toward the diversion head 94. In another embodiment, the first angled cutwater tooth 922 is left-handed and the second angled cutwater tooth 932 is right-handed when viewed from the nozzle 91 toward the cutwater 94.

The cross sections of the first oblique water diversion tooth 922 and the second oblique water diversion tooth 932 are both triangular. Therefore, the surface of the inclined water dividing tooth is a plane, when water flow impacts the upper surface of the inclined water dividing tooth, the inclined water dividing tooth is divided into more water drops, and the diffusion degree of water sprayed from the water splashing disc in the longitudinal direction can be further improved.

The bottom surface of the first inclined water diversion tooth 922 is parallel to the bottom surface of the first splash pan 92. Therefore, the splitting degree of the water flow after impacting the first inclined water dividing tooth can be further improved.

The bottom surface of the second inclined water diversion tooth 932 is parallel to the bottom surface of the second splash pan 93. Therefore, the splitting degree of the water flow after impacting the second inclined water dividing tooth can be further improved.

The first splash plate 92 and the second splash plate 93 are both of a cone structure.

The first splash plate 92 is provided with a first pipe orifice 923 coaxially and integrally formed at the first through hole 921 toward the nozzle 91. Therefore, the water sprayed on the first splash plate is divided into a plurality of layers, and the diffusion degree of the water sprayed on the first splash plate in the longitudinal direction is further improved.

The second splash plate 93 has a second nozzle 933 coaxially formed integrally at the second through hole 931 toward the nozzle 91. Therefore, the water sprayed on the second splash plate is divided into a plurality of layers, and the diffusion degree of the water sprayed on the second splash plate in the longitudinal direction is further improved.

The water dividing head 94 is a cone structure, and an inward concave shoulder 941 is annularly and integrally formed on the side surface of the water dividing head 94. Therefore, the water flow flowing down from the second through hole is split into smaller water drops by the water dividing head and the shoulder, and the hollow phenomenon is reduced.

In an embodiment, a plurality of grooves 942 are further uniformly distributed in a circumferential direction on the surface of the dividing head 94 below the shoulder 941, the grooves 942 are dug on the surface of the dividing head 94, and the grooves 942 may be linear or arc. When arcuate, each arcuate groove 942 is uniformly biased, and may be biased clockwise or counterclockwise. From this, partial rivers flow down from the arc recess, can prevent the jump phenomenon of water on the water knockout drum, and rotatory division can avoid the cavity phenomenon of shower nozzle water spray almost completely, has improved heat transfer effect.

In use, water is sprayed from the nozzle 91, a part of the water hits the first splash plate 92, the water is scattered into a large number of small water droplets, and the other part of the water flows from the first through hole 921 to the second splash plate 93. A part of the water flowing out of the first through hole 921 hits the second splash plate 93, and the water is splashed and spread into a large number of droplets, and another part of the water flows from the second through hole 931 to the water dividing head 94. A part of the water flowing down from the second through hole 931 is split into smaller water drops by the water dividing head and the shoulder, and the other part of the water flows down from the groove and is split in a rotating way.

In addition, in an embodiment, the bottom of the water dividing head 94 is provided with a water spraying end 95, the water spraying end 95 is of an inverted cone structure, the water spraying end 95 can be integrally formed and connected with the water dividing head 94, in addition, the side surface of the water spraying end 95 is provided with a plurality of annular angle grooves 951 in sequence along the axial direction, in this embodiment, 93 annular angle 9 grooves 51 are provided, and one side of the cross section of each annular angle groove 951 is of an angle structure. From this, the part is split into the water droplet by annular angle groove 951 step by step from the water that recess 942 flowed down, and then can realize that the shower nozzle water spray does not have the cavity phenomenon, has improved the heat exchange efficiency of water with the air.

As shown in fig. 7, a nozzle tube 96 is inserted into the nozzle 91. Thus, cooling towers of different sizes may be accommodated by inserting nozzle tubes 96 of different diameters, which may be sized to accommodate flow rates of 6 tons per hour, 8 tons per hour, or 10 tons per hour.

The wall flow eliminator is arranged around the tower body 1 and below the dispersing nozzle 9 in the horizontal direction, so that wall flow can be eliminated, the contact area of fine water drops and unsaturated air is ensured, and the cooling effect is ensured. An air inlet 10 is arranged below a honeycomb rectifier frame 13, splash plates 7 are arranged above the front side edge and the rear side edge of the air inlet 10 to prevent water drops from overflowing, a water collecting tank 11 is arranged at the lower part of the tower body 1 and is positioned below the air inlet 10, the water drops fall through a honeycomb rectifier 8 and fall into the water collecting tank 11 through the air inlet, and the outer surfaces of the left side and the right side of the tower body 1 and the two sides of the air inlet 10 at the lower part of the tower body 1 are wrapped with glass fiber reinforced plastic panels 14.

The countercurrent cooling tower jets water flow out through the dispersion spray head 9, simultaneously, the water flow is cracked and refined into a plurality of fine water drops, the contact area of the fine water drops with unsaturated air is increased, the jetted water drops jet to the tower cavity to enable the fine water drops to be in full contact with and flexible with air flow, heat and mass exchange of water and air is facilitated, the water drop cooling speed is accelerated, and the jetted fine water drops flow to the honeycomb rectifying device 8 in a countercurrent mode under the action of gravity and fall into the water collecting tank 11 after secondary cooling. The continuous turbulence of the airflow in the tower cavity increases the relative flow velocity of the gas-liquid contact area, and the factors with the characteristics strengthen the heat exchange efficiency of the countercurrent cooling tower, thereby discarding the filler.

When the cooling tower operates, a plurality of fine water drops are mixed with saturated wet air in the tower, and under the action of the fan 3, the fine water drops are easy to drift outside the tower, so that the circulating water is lost, and the surrounding environment is influenced; the multi-dimensional dehydrator 5 has the characteristics that: the guide channel forms a unique multidimensional space, the ventilation resistance is small, the guide channel is uniformly placed on the upper part of the tower body and below the air duct 4, the vortex phenomenon caused by the rotation of the fan 3 is effectively controlled, the unstable factor of the flow state in the tower cavity is improved, and the water removal efficiency is further improved.

The utility model discloses a counter-current cooling tower is the function like this: and starting the motor and the speed reducer 2, wherein the motor and the speed reducer 2 drive the fan 3 to rotate, so that unsaturated air is sucked from the air inlet 10 and uniformly enters the inner cavity of the tower body after passing through the honeycomb rectifier 8. The water is delivered to the dispersion nozzle 9 by the injection water distribution pipe 61, and is injected by the water injection nozzle 952 of the dispersion nozzle 9, so that the water flow is cracked and refined into a plurality of fine water drops, and the unsaturated air entering through the honeycomb rectifier 8 is in countercurrent contact heat exchange. The water drops sprayed by the dispersing nozzle 9 flow to the honeycomb rectifier 8 under the action of gravity to be secondarily cooled, finally fall into the water collecting tank 11, and then are sent out to each heat exchange device by the water pump, and then return to the cooling tower to be recycled in cycles.

It should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The above list of details is only for the concrete description of the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications not departing from the present invention should be included in the scope of the present invention.

Claims

1. The countercurrent cooling tower is characterized by comprising a tower body (1), a motor, a speed reducer (2), a fan (3), an air duct (4), a plurality of multi-dimensional water removers (5), a jet water distribution system (6), a wall flow eliminator, a plurality of honeycomb rectifiers (8), a splash guard (7), an air inlet (10) and a water collecting tank (11); the motor, the speed reducer (2), the fan (3) and the air cylinder (4) are arranged at the top end of the tower body (1), the multi-dimensional dehydrator (5) is arranged at the top end of the tower body (1) and below the air cylinder (4), and the injection water distribution system (6) is arranged in the tower body (1) and below the multi-dimensional dehydrator rack (12); the honeycomb rectifier (8) is positioned below the jet water distribution system (6), the jet water distribution system (6) comprises a jet water distribution pipe (61), a plurality of dispersion spray heads (9) and a water inlet (63), the water inlet (63) is communicated with the jet water distribution pipe (61) and positioned at the lower part of the tower body (1), and the dispersion spray heads (9) are connected to the jet water distribution pipe (61); the wall flow eliminator is arranged on the periphery in the tower body (1) and is positioned below the dispersing nozzle (9) in the horizontal direction, an air inlet (10) is arranged below the honeycomb rectifier (8), the splash plates (7) are arranged above the front side edge and the rear side edge of the air inlet (10), and the water collecting tank (11) is arranged on the lower portion of the tower body (1) and is positioned below the air inlet (10);

the dispersion nozzle (9) comprises a nozzle (91), a first splash disc (92), a second splash disc (93) and a water dividing head (94) which are coaxially arranged from top to bottom, the diameters of the first splash disc (92), the second splash disc (93) and the water dividing head (94) are gradually reduced, a first through hole (921) is arranged at the center of the first splash disc (92), a second through hole (931) is arranged at the center of the second splash disc (93), the diameters of the nozzle (91), the first through hole (921) and the second through hole (931) are gradually reduced, a plurality of first oblique water dividing teeth (922) are evenly distributed on the edge of the first splash disc (92), a plurality of second oblique water dividing teeth (932) are evenly distributed on the edge of the second splash disc (93), and the first oblique water dividing teeth (922) are opposite to the second oblique water dividing teeth (932).

2. Counterflow cooling tower according to claim 1, characterised in that the multi-dimensional water trap (5) is bonded in a hexagonal honeycomb structure from multi-dimensional sheets (51) and flat sheets (52).

3. The counter-flow cooling tower according to claim 1, wherein the honeycomb rectifier (8) is a hexagonal honeycomb structure bonded by a plurality of honeycomb curved pieces (81).

4. Counterflow cooling tower according to claim 1, characterised in that the first splash plate (92) is provided with a first nozzle (923) coaxially towards the nozzle (91) at a first through hole (921).

5. The counter flow cooling tower according to claim 1, wherein the second splash plate (93) is provided with a second nozzle (933) coaxially towards the nozzle (91) at a second through hole (931).

6. The counterflow cooling tower of claim 1, wherein the water knockout head (94) is a cone-shaped structure, and the sides of the water knockout head (94) are circumferentially provided with an inward-recessed shoulder (941).

7. The counter-flow cooling tower according to claim 6, characterized in that said water knockout head (94) has a plurality of grooves (942) circumferentially distributed on its surface below said shoulder (941).

8. Counterflow cooling tower according to claim 1, characterised in that the nozzles (91) are provided with nozzle pipes (96) inserted inside.