CN210400048U - Non-filler cooling tower - Google Patents
Non-filler cooling tower Download PDFInfo
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- CN210400048U CN210400048U CN201921397595.3U CN201921397595U CN210400048U CN 210400048 U CN210400048 U CN 210400048U CN 201921397595 U CN201921397595 U CN 201921397595U CN 210400048 U CN210400048 U CN 210400048U
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Abstract
The utility model discloses a packless cooling tower. The non-filler cooling tower comprises a cylindrical tower body, an air duct, a fan, a water collector, a low-pressure centrifugal atomization device, a water distribution pipeline, a water inlet, an air inlet, a water collecting tank and a water outlet, wherein the water distribution pipeline comprises a main water distribution pipe connected with the water inlet and branch water distribution pipes connected with the main water distribution pipe, and two or more branch water distribution pipes are arranged in the cylindrical tower body in an equidistant annular mode; the low-pressure centrifugal atomization device is connected to the water distribution branch pipe and comprises a balancer, a vertical pipe and at least four transverse pipes, the vertical pipe is connected with the balancer, the transverse pipes are connected with spray heads at the tail ends, the length of each transverse pipe is r, the distance between every two adjacent low-pressure centrifugal atomization devices is d, and d is more than or equal to 2r and less than or equal to 3 r. The packless cooling tower improves the uniformity of water distribution through the reasonable layout of the water distribution pipeline and the low-pressure centrifugal atomization device.
Description
Technical Field
The utility model belongs to the technical field of the cooling tower, concretely relates to packless cooling tower.
Background
The main advantages of the non-packed tower compared with the traditional packed cooling tower are as follows: (1) performance aspects: under the condition of the same water amount, the gas-water ratio is about 10 percent of that of the packed tower; the specific surface area of the water-air heat exchange is increased by about 10 percent compared with that of the packed tower; the cooling temperature difference is increased by 1-1.5 ℃ compared with the packed tower; (2) in the operation aspect: the phenomena of aging, deformation, brittle fracture, collapse, blockage, channeling and the like of the filler and the blockage of the filler fragments on process system equipment or pipelines are thoroughly overcome, and the cooling effect cannot be weakened along with the increase of the operation time; (3) maintenance and use aspects: the non-filler cooling tower has no filler, no routine maintenance work for preventing the internal blockage of the filler from influencing heat exchange, no routine maintenance work for manual deicing and the like in northern areas due to the icing of the internal filler, can ensure the non-maintenance continuous operation period of the cooling tower, and can also ensure the longer service life of the whole tower equipment compared with the traditional filler cooling tower.
At present, researches on the water distribution uniformity of a packless cooling tower are mostly focused on the improvement of the nozzle structure of a low-pressure centrifugal atomizing device. For example, patent CN2702785Y discloses a five-head six-head efficient low-pressure centrifugal atomization device, wherein reasonable design of the structure and size of the water inlet pipe and the cylinder is adopted, so that a water body forms a high-speed rotating flow in the cylinder, sufficient centrifugal force is generated to flow upwards and flow out, resistance is small when flowing through from a streamline curved surface at the nozzle, and a dispersed atomization effect on the water body is achieved. Patent CN202582358U also discloses a spray head of a cooling tower without filler, which is hollow spherical and has smooth transition on the whole inner surface, and the high-speed water flow is sprayed from the nozzle after flowing into the cylindrical spray head body and then directly and smoothly transitioning, and the water flow has almost no speed loss when flowing through the spray head body.
It can be seen that the improvement of the nozzle mechanism of the low-pressure centrifugal atomizing device can improve the uniformity of water distribution to some extent, but the improvement is still insufficient, and how to improve the uniformity of water distribution should be considered from other aspects.
Disclosure of Invention
Problem to be solved by utility model
In order to solve the problem that the water distribution of the non-filler cooling tower is not uniform enough in the prior art, the utility model provides a non-filler cooling tower.
Means for solving the problems
The utility model provides a packless cooling tower, which comprises a cylindrical tower body, an air duct, a fan, a water collector, a low-pressure centrifugal atomization device, a water distribution pipeline, a water inlet, an air inlet, a water collecting tank and a water outlet, wherein the water distribution pipeline comprises a main water distribution pipe connected with the water inlet, a branch water distribution pipe connected with the main water distribution pipe, and two or more branch water distribution pipes are arranged in the cylindrical tower body in an equidistant annular manner; the low-pressure centrifugal atomization device is connected to the water distribution branch pipe and comprises a balancer, a vertical pipe and at least four transverse pipes, the vertical pipe is connected with the balancer, the transverse pipes are connected with spray heads at the tail ends, the length of each transverse pipe is r, the distance between every two adjacent low-pressure centrifugal atomization devices is d, and d is more than or equal to 2r and less than or equal to 3 r.
The non-filler cooling tower mainly transfers heat through heat and mass exchange when water and air are in direct contact, the heat is transferred to unsaturated air through the water, so that the water temperature is reduced, the air temperature is increased, the moisture content is increased, and the unsaturated air is discharged into the atmosphere. The non-filler cooling tower jets water flow out through the low-pressure centrifugal atomization device, simultaneously, water beams are cracked and refined into a plurality of small water drops, the contact area of the small water drops and unsaturated air is increased, and the kinetic energy of the jetted water drops jetted to the tower cavity enables the small water drops to be in full contact with and flexible with air flow, so that the heat and mass exchange of water and air is facilitated, and the cooling speed of the water drops is accelerated; when the ejected water drops flow downstream to the water collector, the water drops flow downstream under the action of gravity and finally enter the water collecting tank. The low-pressure centrifugal atomization device needs to be uniformly distributed in the tower body, so that the water distribution uniformity in the whole tower body can be ensured, and the atomization effect and the heat exchange efficiency are improved.
The technical scheme of the utility model, the water distribution is in charge of the equidistance annular arrangement of pipe in the tower body indicates a plurality ofly the water distribution is in charge of the concentric circles formula and distributes, and adjacent two the distance between the water distribution is in charge of is equal, outer lane the distance between water distribution is in charge of and cylindrical tower body inner wall and adjacent two the distance between the water distribution is in charge of also equals. Such an arrangement facilitates an even distribution of the low pressure centrifugal atomizer. The low-pressure centrifugal atomizing devices are connected with the water distribution pipeline, and further, in consideration of enabling sprayed water drops to be distributed in the inner cavity of the whole tower body as far as possible and simultaneously preventing the spray heads of two adjacent low-pressure centrifugal atomizing devices from colliding, the distance d between the two adjacent low-pressure centrifugal atomizing devices is set to be as follows: 2r < d.ltoreq.3 r, and more preferably 2r < d.ltoreq.2.5 r.
Furthermore, in order to ensure the distribution uniformity of the low-pressure centrifugal atomization devices in the tower body, the distance between every two adjacent low-pressure centrifugal atomization devices on a single water distribution branch pipe is equal.
Further, according to no filler cooling tower, low pressure centrifugal atomization device still include the rotator, the one end of rotator is connected the standpipe, the other end of rotator is connected the water distribution divides the pipe, and is relative the water distribution divides the pipe free rotation. Circulating water enters the vertical pipe and the transverse pipe of the low-pressure centrifugal atomization device through the water inlet pipe, enters the spray head, forms high-speed centrifugal motion at the spray head, sprays the circulating water to a certain height, is crushed into fine particles in the spraying motion, forms an atomization state under the action of the fan at the upper end, and is suspended in the inner cavity of the tower body to exchange heat with air, so that the effect of cooling the circulating water is achieved. In the process of spraying circulating water by the spray head, the rotating body rotates due to the reaction force of water flow, so that the spray head is driven to rotate in the circumferential direction, and the water distribution uniformity is further improved.
Further, according to the packless cooling tower, the shower nozzle is 90 contained angles between two liang. The two water flows in opposite directions act together to generate a rotating moment, so that the rotating body keeps rotating.
Furthermore, according to the cooling tower without filler, the spray head is a cup type spray head.
Further, according to no filler cooling tower, the water distribution is responsible for and is provided with the filter screen, prevents the shower nozzle is blockked up, influences atomization effect.
Effect of the utility model
(1) The non-filler cooling tower provided by the utility model comprises the water inlet pipelines which are annularly arranged at equal intervals and the low-pressure centrifugal atomization devices which are uniformly distributed on the water inlet pipelines, so that the water distribution uniformity is greatly improved, and the cooling effect of the non-filler cooling tower is further improved;
(2) the utility model provides an among the packless cooling tower, each distance between the low pressure centrifugal atomization device has special restriction, must satisfy 2r < d be less than or equal to 3 r's condition for there is not the dead angle in the water distribution region.
(3) Furthermore, in the non-filler cooling tower provided by the utility model, the low-pressure centrifugal atomization device can also rotate through the rotating body, so as to further improve the water distribution uniformity;
(4) further, the utility model provides a no filler cooling tower utilizes the effect of rivers to drive the rotator free rotation does not consume the energy.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present invention and, together with the description, serve to explain the principles of the invention.
FIG. 1 shows a schematic diagram of an unfilled cooling tower in accordance with an embodiment of the present invention;
fig. 2 is a schematic diagram of a water distribution pipeline and a low-pressure centrifugal atomizing device of a packless cooling tower according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a low-pressure centrifugal atomizing device of a packless cooling tower according to an embodiment of the present invention;
fig. 4 shows a top view of a low pressure centrifugal atomizer of a packless cooling tower according to an embodiment of the present invention.
Description of the reference numerals
1: a tower body; 2: an air duct; 3: a fan; 4: a water collector; 5: a low pressure centrifugal atomizing device; 51: a balancer; 52: a vertical tube; 53: a transverse tube; 54: a spray head; 6: a water distribution pipeline; 61: a water distribution main pipe; 62: water distribution branch pipes; 7: a water inlet; 8: an air inlet; 9: a water collecting tank; 10: and (7) a water outlet.
Detailed Description
Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
Example 1
FIG. 1 shows a schematic diagram of an unfilled cooling tower in accordance with an embodiment of the present invention; fig. 2 is a schematic diagram of a water distribution pipeline and a low-pressure centrifugal atomizing device of a packless cooling tower according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a low-pressure centrifugal atomizing device of a packless cooling tower according to an embodiment of the present invention; fig. 4 shows a top view of a low pressure centrifugal atomizer of a packless cooling tower according to an embodiment of the present invention. As shown in fig. 1-4, the non-filler cooling tower comprises a cylindrical tower body 1, an air duct 2, a fan 3, a water collector 4, a low-pressure centrifugal atomizer 5, a water distribution pipeline 6, a water inlet 7, an air inlet 8, a water collecting tank 9 and a water outlet 10, wherein the water distribution pipeline 6 comprises a main water distribution pipe 61 connected with the water inlet 7, a branch water distribution pipe 62 connected with the main water distribution pipe 61, and two or more branch water distribution pipes 62 are arranged in the tower body 1 in an equidistant annular manner; the low-pressure centrifugal atomization devices 5 are uniformly distributed on the water distribution branch pipe 62, each low-pressure centrifugal atomization device 5 comprises a balancer 51, a vertical pipe 52 connected with the balancer 51 and at least four transverse pipes 53, the tail ends of the transverse pipes 53 are connected with spray heads 54, the length of each transverse pipe 53 is r, the distance between every two adjacent low-pressure centrifugal atomization devices 5 is d, and 2r is less than or equal to 3 r.
The non-filler cooling tower mainly transfers heat through heat and mass exchange when water and air are in direct contact, the heat is transferred to unsaturated air through the water, so that the water temperature is reduced, the air temperature is increased, the moisture content is increased, and the unsaturated air is discharged into the atmosphere. The non-filler cooling tower jets water flow out through the low-pressure centrifugal atomizing device 5, simultaneously, water beams are cracked and refined into a plurality of small water drops, the contact area of the small water drops and unsaturated air is increased, and the kinetic energy of the jetted water drops jetted to the tower cavity enables the small water drops to be fully contacted and scratched with air flow, so that the heat and mass exchange of water and air is facilitated, and the cooling speed of the water drops is accelerated; when the ejected water drops flow downstream to the water collector, the water drops flow downstream under the action of gravity and finally enter the water collecting tank 9. The low-pressure centrifugal atomization device 5 needs to be uniformly distributed in the tower body 1, so that the water distribution uniformity in the whole tower body 1 can be ensured, and the atomization effect and the heat exchange efficiency are further improved.
In this embodiment, the equidistant circular arrangement of the water distribution branched pipes 62 in the tower body 1 means that the plurality of water distribution branched pipes 62 are distributed in a concentric circle, and the distance between two adjacent water distribution branched pipes 62 is equal, and the distance between the water distribution branched pipe 62 at the outermost circle and the inner wall of the tower body 1 is also equal to the distance between two adjacent water distribution branched pipes 62. Such an arrangement facilitates an even distribution of the low pressure centrifugal atomizer 5. The low-pressure centrifugal atomizing devices 5 are connected to the water distribution branch pipe 62, and further, considering that the sprayed water droplets are distributed over the entire inner cavity of the tower body 1 as much as possible, and at the same time, the spray heads 54 of two adjacent low-pressure centrifugal atomizing devices 5 are prevented from colliding with each other, and therefore, in the present embodiment, the distance d between two adjacent low-pressure centrifugal atomizing devices 5 is set to the following length: d is 2.5 r.
Example 2
Based on embodiment 1, as shown in fig. 4, the low-pressure centrifugal atomizer 5 further includes a rotating body 55, one end of the rotating body 55 is connected to the vertical pipe 52, and the other end of the rotating body 55 is connected to the water distributing pipes 62 and freely rotates relative to the water distributing pipes 62. Circulating water enters the vertical pipe 52 and the horizontal pipe 53 of the low-pressure centrifugal atomization device 5 through the water inlet distribution pipe 62, enters the spray nozzle 54, forms high-speed centrifugal motion at the spray nozzle 54, sprays the circulating water to a certain height, the circulating water is crushed into fine particles in the spraying motion, an atomization state is formed under the action of the fan 3 at the upper end, and circulating water mist is suspended in the inner cavity of the tower body 1 to exchange heat with air, so that the effect of cooling the circulating water is achieved. In the process of spraying the circulating water by the spray head 54, the rotating body 55 rotates due to the reaction force of the water flow, and the spray head 54 is driven to rotate circumferentially, so that the water distribution uniformity is further improved.
Example 3
On the basis of example 1, as shown in fig. 3, the spray heads 54 are arranged at an angle of 90 ° between each other. The two water flows in opposite directions act together to generate a rotational moment, so that the rotating body 55 keeps rotating. As shown in fig. 4, spray head 54 is a cup-type spray head.
Example 4
On the basis of embodiment 1, a filter screen (not shown) is arranged in the main water distribution pipe 61 to prevent the spray head 54 from being blocked to influence the atomization effect.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A packless cooling tower comprises a cylindrical tower body, an air duct, a fan, a water collector, a low-pressure centrifugal atomization device, a water distribution pipeline, a water inlet, an air inlet, a water collecting tank and a water outlet, and is characterized in that,
the water distribution pipeline comprises a main water distribution pipe connected with the water inlet and branch water distribution pipes connected with the main water distribution pipe, and two or more branch water distribution pipes are annularly arranged in the cylindrical tower body at equal intervals;
the low-pressure centrifugal atomization device is connected to the water distribution branch pipe and comprises a balancer, a vertical pipe and at least four transverse pipes, the vertical pipe is connected with the balancer, the transverse pipes are connected with spray heads at the tail ends, the length of each transverse pipe is r, the distance between every two adjacent low-pressure centrifugal atomization devices is d, and d is more than or equal to 2r and less than or equal to 3 r.
2. The packless cooling tower of claim 1, wherein 2r < d ≦ 2.5 r.
3. The packless cooling tower of claim 1 or 2, wherein the distances between two adjacent low-pressure centrifugal atomization devices on a single water distribution pipe are equal.
4. The packless cooling tower of claim 1 or 2, wherein the low-pressure centrifugal atomizer further comprises a rotating body, one end of the rotating body is connected with the vertical pipe, and the other end of the rotating body is connected with the water distributing pipe and freely rotates relative to the water distributing pipe.
5. The packless cooling tower of claim 4, wherein the spray heads are angled at 90 ° between each other.
6. The packless cooling tower of claim 4, wherein the spray heads are cup spray heads.
7. The packless cooling tower of claim 1 or 2, wherein a filter screen is arranged in the main water distribution pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921397595.3U CN210400048U (en) | 2019-08-27 | 2019-08-27 | Non-filler cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921397595.3U CN210400048U (en) | 2019-08-27 | 2019-08-27 | Non-filler cooling tower |
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| Publication Number | Publication Date |
|---|---|
| CN210400048U true CN210400048U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921397595.3U Active CN210400048U (en) | 2019-08-27 | 2019-08-27 | Non-filler cooling tower |
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| CN (1) | CN210400048U (en) |
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- 2019-08-27 CN CN201921397595.3U patent/CN210400048U/en active Active
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