CN210486560U - Cooling tower - Google Patents
Cooling tower Download PDFInfo
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- CN210486560U CN210486560U CN201921299674.0U CN201921299674U CN210486560U CN 210486560 U CN210486560 U CN 210486560U CN 201921299674 U CN201921299674 U CN 201921299674U CN 210486560 U CN210486560 U CN 210486560U
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Abstract
The utility model relates to a cooling arrangement technical field, in particular to cooling tower. The cooling tower comprises a tower body, at least one water guide plate, a water spraying device, a water collecting tank and a fan, wherein the tower body is provided with a cooling cavity for cooling circulating water; the water diversion plate is fixed in the cooling cavity and is spiral from top to bottom; the water spraying device is arranged above the water guide plate and is used for connecting a circulating water pipeline outside the cooling tower and spraying circulating water on the water guide plate; the upper surface of the water guide plate is a smooth surface so that circulating water can flow downwards, a large number of water leakage holes are formed in the water guide plate, and part of the circulating water leaks from the water leakage holes while the circulating water flows downwards along the upper surface of the water guide plate; the water collecting tank is arranged at the bottom of the tower body and used for collecting circulating water; the fan is arranged at the top of the tower body and used for exhausting air from bottom to top and cooling circulating water from top to bottom through reverse airflow. The utility model provides a cooling tower that cooling effect is good.
Description
Technical Field
The utility model relates to a cooling arrangement technical field, in particular to cooling tower.
Background
The cooling tower is an important device in a circulating water system in life and industrial production, and the principle of the cooling tower is to cool circulating water in the circulating system by heat exchange between the circulating water and air. The cooling tower can be divided into a dry cooling tower and a wet cooling tower, circulating water in the dry cooling tower is not contacted with air, the circulating water is in a fixed circulating water pipeline and exchanges heat with the air through the circulating water pipeline, and therefore the temperature of the circulating water is reduced; circulating water in the wet cooling tower directly contacts with air and directly exchanges heat with the air to reduce the temperature of the circulating water.
The working process of the wet cooling tower is as follows: the top of the cooling tower is provided with an induced draft fan, the lower part of the cooling tower is provided with an air inlet, the induced draft fan controls air to flow from bottom to top in the cooling tower, the top of the cooling tower and the lower part of the induced draft fan are provided with water distribution devices, the water distribution devices are used for sprinkling circulating water downwards, and the circulating water and the air flowing reversely exchange heat, so that the temperature of the circulating water is reduced.
Circulating water among the existing cooling tower generally directly falls in the tower body, and is directed at small-size cooling tower, because the cooling tower height is less, the time of circulating water and air contact is shorter, and the cooling effect of circulating water is relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cooling tower that cooling effect is good.
In order to achieve the above object, the utility model provides a cooling tower adopts following technical scheme:
the cooling tower comprises:
a tower body having a cooling cavity for cooling circulating water;
at least one water diversion plate which is fixed in the cooling cavity and is spiral from top to bottom;
the water spraying device is arranged above the water guide plate and is used for connecting a circulating water pipeline outside the cooling tower and spraying circulating water on the water guide plate;
the upper surface of the water guide plate is a smooth surface so that circulating water can flow downwards, a large number of water leakage holes are formed in the water guide plate, and part of the circulating water leaks from the water leakage holes while the circulating water flows downwards along the upper surface of the water guide plate;
the water collecting tank is arranged at the bottom of the tower body and used for collecting circulating water;
and the fan is arranged at the top of the tower body and used for exhausting air from bottom to top and cooling the circulating water from top to bottom through reverse airflow.
The utility model provides a cooling tower's beneficial effect is: the cooling tower guides the water sprayed by the water spraying device through the spiral water guide plate, and circulating water is uniformly spread on the smooth surface of the water guide plate and flows downwards quickly and smoothly along the water guide plate; and the circulating water is uniformly spread, the spreading area is larger, the heat exchange area between the circulating water and air is larger, and the heat exchange effect is good. In addition, because the diversion plate is provided with a large number of water leakage holes, when circulating water flows rapidly along the smooth surface of the diversion plate, part of the circulating water can leak from the water leakage holes at a certain flowing speed, so that the circulating water is distributed in the cooling cavity of the cooling tower more dispersedly and uniformly, and the cooling effect is better.
Furthermore, the water leakage holes are arranged in rows, and the water leakage holes in multiple rows are arranged by extending the center of the water guide plate radially outwards. The processing of the hole of leaking of being convenient for of setting up like this makes the arranging of hole of leaking regular simultaneously, can improve the homogeneity of the circulating water that leaks down from the hole of leaking.
Furthermore, each water leakage hole in two adjacent rows of water leakage holes is arranged on the spiral path in a staggered mode. The arrangement can improve the uniformity of the circulating water leaking from the water leaking holes.
Furthermore, a plurality of rows of water leakage holes are uniformly arranged along the spiral direction of the water diversion plate. The arrangement can improve the uniformity of the circulating water leaking from the water leaking holes.
Furthermore, the water leakage holes on two adjacent layers of the water diversion plate are arranged in a vertically staggered manner. Set up like this, the circulating water can flow along the diversion board after leaking on the next layer diversion board through the hole that leaks, can increase the heat dissipation route of circulating water, and then the radiating effect of reinforcing circulating water.
Furthermore, the water guide plate is connected with the inner wall of the tower body or in clearance fit with the inner wall of the tower body, so that the tower body and the water guide plate enclose a spiral air passing channel. The arrangement can enable the wind to pass through the wind passing channel as much as possible, so that the utilization rate of the wind is improved, and the cooling effect of the cooling tower is improved.
Furthermore, the diversion plate is arranged in a spiral mode with a low center and a high outer side, so that the tangential component force of the gravity of the water flow is balanced with the centrifugal force, and the water flow can flow uniformly. The circulating water cooling tower is arranged in such a way that the component force of the gravity borne by the circulating water along the axial direction parallel to the water diversion plate and towards the water diversion plate can offset the whole or part of centrifugal force, so that the circulating water flows on the water diversion plate as uniformly as possible, the contact area between the circulating water and air is further increased, and the cooling effect of the cooling tower is further improved.
Furthermore, a water supply pipe which extends up and down is arranged at the rotational flow center of the cooling tower, the lower end of the water supply pipe is led out from the side surface of the bottom of the tower body and is used for connecting a circulating water pipeline, the upper end of the water supply pipe is connected with the water spraying device and is used for supplying water into the water spraying device, and the water guide plate extends to a water collecting tank at the lower part in a spiral mode around the water supply pipe. The water supply pipe can supply water to the water spraying device and can also be used as a supporting and fixing structure of the water diversion plate, so that the water diversion plate is convenient to install in the cooling tower; in addition, the diversion plate extends spirally around the water supply pipe, so that the diversion plate is convenient to manufacture.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a cooling tower provided by the present invention;
fig. 2 is a top view of a diversion plate in an embodiment of a cooling tower provided by the present invention.
In the drawings: 1-tower body, 11-upper part of tower body, 12-lower part of tower body, 121-step surface, 2-supporting legs, 3-water guide plate, 31-water leakage hole, 4-motor, 5-fan blade, 6-water inlet, 7-water sprinkling groove, 8-water outlet, 9-water supplementing hole, 101-sewage outlet, 102-overflow outlet and 103-staircase.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
The utility model provides an embodiment of cooling tower:
as shown in fig. 1, the cooling tower comprises a tower body 1, the tower body 1 is cylindrical as a whole, the tower body 1 comprises a tower body upper part 11 and a tower body lower part 12, the tower body upper part 11 and the tower body lower part 12 are fixedly connected at a position below the whole tower body 1, the size of the lower port of the tower body upper part 11 is smaller than that of the upper port of the tower body lower part 12, so that a step surface 121 is formed at the connecting position of the tower body upper part 11 and the tower body lower part 12; the interior of the tower body 1 is provided with a cavity for cooling the circulating water, which cavity constitutes the cooling cavity of the cooling tower.
As shown in fig. 1, a plurality of support legs 2 are arranged at the outer side of the bottom of the tower body 1, and the cooling tower is supported on a corresponding working platform through the support legs 2.
As shown in fig. 1, the upper end of the upper part 11 of the tower body is open, a motor 4 is installed at the open, the output shaft of the motor 4 faces the inside of the tower body 1, fan blades 5 are installed on the output shaft of the motor 4, and the motor 4 and the fan blades 5 together form a fan of the cooling tower; in the embodiment, the fan is used for drawing air from bottom to top, so that air flowing from bottom to top is formed in the cavity of the tower body 1; an air inlet is formed in the step surface 121 and is used for communicating the inside and the outside of the tower body 1, when the fan works, air enters the cavity of the tower body 1 through the air inlet and is then drawn out of the tower body 1 from the opening of the upper part 11 of the tower body by the fan.
As shown in fig. 1, a water spraying groove 7 is arranged in the cavity of the tower body 1 and below the fan, the water spraying groove 7 is used for containing circulating water to be cooled, the water spraying groove 7 is a cuboid groove, the long side of the water spraying groove 7 is slightly smaller than the size of the cavity in the tower body 1 at the corresponding position, a water spraying opening is arranged on one side wall of the water spraying groove 7, and the water spraying opening is used for allowing the circulating water in the water spraying groove 7 to flow out of the water spraying groove 7; the gate plate is hinged on the side wall provided with the water spraying port and above the water spraying port, and the opening size of the water spraying port is realized by the up-and-down turning of the gate plate so as to control the flow of circulating water flowing out of the water spraying groove 7; the water sprinkling tank 7 constitutes a water sprinkling device in the cooling tower.
As shown in fig. 1, a water inlet 6 is arranged at the bottom of the tower body 1, a water supply pipe is arranged at the center of the cavity of the tower body 1, the water supply pipe extends along the vertical direction, the lower end of the water supply pipe is connected with the water inlet 6 and led out of the tower body 1 through the water inlet 6, the upper end of the water supply pipe is communicated with a water spraying groove 7, and circulating water to be cooled in an external circulating water pipeline enters the water spraying groove 7 through the water inlet 6 and the water supply; the water supply pipe also constitutes the rotational flow center of the circulating water in the cooling tower.
As shown in fig. 1, a water diversion plate 3 is fixed in a cavity of a tower body 1, and the water diversion plate 3 is used for guiding circulating water flowing out of a water spraying groove 7 to the bottom of the tower body 1; in this embodiment, the water guide plate 3 is spiral from top to bottom and extends spirally around the water supply pipe in the cavity, the water guide plate 3 is arranged in a spiral form with a high outer side and a low center, the outer side of the water guide plate 3 is connected with the inner wall of the tower body 1, so that the water guide plate 3 and the inner wall of the tower body 1 enclose a spiral air passage, air entering the tower body 1 from the air inlet on the step surface 121 flows from bottom to top along the air passage under the suction action of the fan and is finally pumped out of the tower body 1, and in the process of the upward flow of the air, the air exchanges heat with circulating water on the water guide plate 3, so that the circulating water is cooled. In this embodiment, the helical water guide plate 3 is arranged to increase the extension length of the water guide plate 3, so as to increase the contact area between the circulating water and the air, thereby improving the cooling effect of the cooling tower; the diversion plate 3 is arranged in a mode that the outer side is high and the center is low, so that the component force of the gravity of the circulating water along the axial direction parallel to the diversion plate 3 and facing the diversion plate 3 offsets all or part of the centrifugal force, and the circulating water flows on the diversion plate 3 as uniformly as possible.
As shown in fig. 2, a large number of water leakage holes 31 are formed in the water guide plate 3, the water leakage holes 31 are arranged in rows and columns, and the water leakage holes 31 in each row extend radially outward from the center of the water guide plate 3, the water leakage holes 31 in each column are uniformly arranged along the spiral direction of the water guide plate 3, and the water leakage holes 31 in two adjacent columns are arranged in a staggered manner on the spiral path of the water guide plate 3, for example, any water leakage hole 31 in a certain column of water leakage holes 31 and any water leakage hole 31 in an adjacent column of water leakage holes 31 are not on the same cylindrical outer peripheral surface (the cylindrical outer peripheral surface refers to the outer peripheral surface of a cylinder with the axis of the water guide plate 3 as the center line and the; set up the hole 31 that leaks on water diversion plate 3, then when the circulating water flows downwards along the spiral route of water diversion plate 3, some circulating water can leak down through the hole 31 with certain flow velocity, and the circulating water leaks down the in-process that falls on the water diversion plate 3 of next floor from the water diversion plate 3 of last layer, can take place the heat exchange with the air in the wind passageway of crossing, this is equivalent to increased the area of contact of circulating water and air in the whole cooling tower, can improve the cooling effect of this cooling tower.
The bottom of the tower body 1 is provided with a water collecting tank which is also arranged below the water diversion plate 3 and used for collecting circulating water flowing down from the water diversion plate 3.
As shown in fig. 1, a water outlet 8 is further arranged at the bottom of the tower body 1, and the water outlet 8 is communicated with the water collecting tank and used for circulating water cooled in the water collecting tank to the outside.
As shown in fig. 1, a water replenishing port 9 is arranged at the bottom of the tower body 1, the water replenishing port 9 is communicated with a water collecting tank, and the water replenishing port 9 is used for replenishing circulating water into the cooling tower so as to prevent the situation that the circulating water in a circulating water path is too little due to water vapor evaporation in the cooling process; the bottom of the tower body 1 is also provided with a drain 101, and the drain 101 is communicated with the water collecting tank and used for discharging dirt deposited in the water collecting tank; the bottom of the tower body 1 is also provided with an overflow port 102, and the overflow port 102 is communicated with the water collecting tank and used for preventing circulating water in the water collecting tank from being overfilled.
As shown in fig. 1, an escalator 103 is further disposed on an outer side of the tower body 1, and the escalator 103 allows an operator to climb to a top of the tower body 1, so as to facilitate maintenance, replacement and the like of the fan.
In the above embodiment, a water diversion plate is fixed in the tower body 1. In other embodiments, the number of the water diversion plates may be two or more, for example, two water diversion plates may be installed at the same time, the spiral directions of the two water diversion plates are the same, and the upper ends of the two water diversion plates are symmetrically arranged with respect to the water supply pipe in the middle.
In the above-mentioned embodiment, the hole that leaks arranges into the multiseriate in row, and multiseriate hole that leaks is arranged by the radial outside extension in center of diversion board, and multiseriate hole that leaks evenly arranges along the helical direction of diversion board. In other embodiments, the arrangement of the water leakage holes can be in other forms, for example, when the water leakage holes are seen from top to bottom, a plurality of regular triangles are distributed on the water diversion plate, a plurality of squares are also distributed on the water diversion plate, and a plurality of squares are distributed on the water diversion plate.
In the above-mentioned embodiment, the hole that leaks arranges in rows, and multiseriate hole that leaks by the radial outside extension in center of diversion board arranges, multiseriate hole that leaks evenly arranges along diversion board helical direction, and adjacent two each hole that leaks in the hole that leaks misplaces on the spiral route. In other embodiments, the multiple rows of water leakage holes are not arranged to be evenly distributed along the spiral direction of the water diversion plate, for example, the included angle between any two adjacent rows of water leakage holes is different from the included angle between any two adjacent rows of water leakage holes; each water leakage hole in two adjacent rows of water leakage holes can also be arranged on the spiral path without dislocation, for example, any one water leakage hole in any one row of water leakage holes and the corresponding water leakage hole on the two adjacent rows of water leakage holes are positioned on the outer peripheral surface of the same cylinder; the water leakage holes can be arranged on the water diversion plate in a scattered manner and can also be used.
In the above embodiment, the outer side of the water diversion plate is connected with the inner wall of the tower body. In other embodiments, the outer side of the water deflector may also be in clearance fit with the inner wall of the tower body, it being noted that the clearance should not be too large to prevent too much air from being drawn directly from the clearance to the outside of the tower body.
In the above embodiment, the diversion plate is arranged with a low center and a high outside. In other embodiments, the outer side and the center of the water diversion plate at the same position are equal in height, or the water diversion plate is arranged in a mode that the center is high and the outer side is low, and the water diversion plate can also be used.
In the above embodiment, the circulating water in the circulating water pipeline is delivered to the water spraying groove through the central pipe extending up and down, and the water guide plate extends spirally around the central pipe. In other embodiments, the circulating water in the circulating water pipeline can also be sent to the water spraying tank in other manners, for example, an opening can be directly arranged at the upper part of the tower body, the position of the opening is higher than the height of the water spraying tank, a communicating pipe is arranged at the opening, one end of the communicating pipe is communicated with the circulating water pipeline, and the other end of the communicating pipe extends into the water spraying tank and can also supply water to the water spraying tank; correspondingly, the water supply pipe is not arranged, the water diversion plate cannot extend spirally around the water supply pipe, a solid cylinder extending in the vertical direction can be arranged, and the water diversion plate extends spirally around the cylinder.
Claims (8)
1. Cooling tower, characterized by includes:
a tower body having a cooling cavity for cooling circulating water;
at least one water diversion plate which is fixed in the cooling cavity and is spiral from top to bottom;
the water spraying device is arranged above the water guide plate and is used for connecting a circulating water pipeline outside the cooling tower and spraying circulating water on the water guide plate;
the upper surface of the water guide plate is a smooth surface so that circulating water can flow downwards, a large number of water leakage holes are formed in the water guide plate, and part of the circulating water leaks from the water leakage holes while the circulating water flows downwards along the upper surface of the water guide plate;
the water collecting tank is arranged at the bottom of the tower body and used for collecting circulating water;
and the fan is arranged at the top of the tower body and used for exhausting air from bottom to top and cooling the circulating water from top to bottom through reverse airflow.
2. The cooling tower of claim 1, wherein the plurality of rows of water leakage holes are arranged in a row, and each of the plurality of rows of water leakage holes extends radially outward from a center of the water guide plate.
3. A cooling tower according to claim 2, wherein the water leakage holes of two adjacent rows are offset in the spiral path.
4. A cooling tower according to claim 2 or 3, wherein the plurality of rows of water leakage holes are uniformly arranged along the spiral direction of the water guide plate.
5. A cooling tower as claimed in claim 2 or 3, wherein the water-draining holes on two adjacent layers of the water-drawing plates are arranged in a vertically staggered manner.
6. A cooling tower according to claim 1, 2 or 3, wherein the water guide plates are connected to or in clearance fit with the inner wall of the tower body, so that the tower body and the water guide plates enclose a helical air passage.
7. A cooling tower according to claim 1, 2 or 3, wherein the water deflector is arranged in the form of a spiral with a low centre and a high outside to balance the tangential component of the gravity of the water flow with the centrifugal force and thus to enable the water flow to flow uniformly.
8. A cooling tower as claimed in claim 1, 2 or 3, wherein a water supply pipe extending up and down is provided at a center of the rotational flow of the cooling tower, a lower end of the water supply pipe is led out from a side surface of the bottom of the tower body and is used for connecting a circulating water pipeline, an upper end of the water supply pipe is connected with the water spraying device and is used for supplying water into the water spraying device, and the water leading plate extends spirally around the water supply pipe to a lower water collecting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921299674.0U CN210486560U (en) | 2019-08-12 | 2019-08-12 | Cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921299674.0U CN210486560U (en) | 2019-08-12 | 2019-08-12 | Cooling tower |
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| Publication Number | Publication Date |
|---|---|
| CN210486560U true CN210486560U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921299674.0U Active CN210486560U (en) | 2019-08-12 | 2019-08-12 | Cooling tower |
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| Country | Link |
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| CN (1) | CN210486560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332824A (en) * | 2019-08-12 | 2019-10-15 | 河南科技大学 | A kind of cooling tower |
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2019
- 2019-08-12 CN CN201921299674.0U patent/CN210486560U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332824A (en) * | 2019-08-12 | 2019-10-15 | 河南科技大学 | A kind of cooling tower |
| CN110332824B (en) * | 2019-08-12 | 2024-08-30 | 河南科技大学 | Cooling tower |
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