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CN-121994066-A - Spray equipment for heat exchange of closed cooling tower

CN121994066ACN 121994066 ACN121994066 ACN 121994066ACN-121994066-A

Abstract

The invention discloses spray equipment for heat exchange of a closed cooling tower, which comprises a shell, wherein a heat exchange frame is horizontally arranged in the shell, heat exchange pipes for cooling are horizontally and equidistantly arranged on the inner side of the heat exchange frame, and an adjusting mechanism comprises a first connecting pipe and a second connecting pipe which are respectively and fixedly arranged at two ends of the heat exchange frame. After the servo motor is controlled to start, the pinion can be driven to rotate through the connecting rod, and the pinion is meshed with the large gear at the outer side of the first connecting pipe and is transmitted to the heat exchange frame through the first connecting pipe, and meanwhile, the second connecting pipe is in rotary fit with the shell through the bearing, so that the heat exchange frame and the heat exchange pipes horizontally arranged in the frame at equal intervals are driven to slowly rotate in the shell. Can make casing top inner wall spray hole spun cooling water can evenly cover heat exchange tube surface and heat exchange frame whole, avoid traditional fixed heat exchange structure to exist spray the dead angle, promote the area of contact of cooling water and heat exchange tube by a wide margin.

Inventors

  • SONG MINGWEI

Assignees

  • 山东百川工业科技集团有限公司

Dates

Publication Date
20260508
Application Date
20260318

Claims (8)

  1. 1. A spray device for closed cooling tower heat exchange, comprising: The heat exchange device comprises a shell (1), wherein a heat exchange frame (12) is horizontally arranged in the shell (1), and heat exchange pipes (11) for cooling are horizontally and equidistantly arranged on the inner side of the heat exchange frame (12); The adjusting mechanism comprises a first connecting pipe (13) and a second connecting pipe (14) which are respectively and fixedly arranged at two ends of the heat exchange frame (12), a large gear (23) is penetrated and fixedly arranged at the outer side of the first connecting pipe (13), a servo motor (2) for driving the heat exchange frame (12) and the heat exchange pipe (11) to rotate is fixedly connected to the outer side of the shell (1), a connecting rod (21) is fixedly arranged at the shaft end of the servo motor (2), a small gear (22) is penetrated and fixedly arranged at the outer side of the connecting rod (21), and the small gear (22) is meshed with the large gear (23); The spraying mechanism comprises spraying holes (18) which are formed in the inner wall of the top end of the shell (1) at equal intervals and used for spraying water, and a liquid suction barrel (3) used for supplying water, wherein a piston (31) is connected to the inside of the liquid suction barrel (3) in a sliding mode, a flywheel disc (32) is fixedly installed at one end, far away from the servo motor (2), of the connecting rod (21), and the outer side of the flywheel disc (32) is connected with the middle of the upper surface of the piston (31) through a crank connecting rod (33) in a transmission mode.
  2. 2. The spray equipment for heat exchange of the closed cooling tower according to claim 1, wherein the heat exchange strip (15) is fixedly arranged on the outer side of the heat exchange tube (11), one end of the heat exchange strip (15) is arranged in the heat exchange tube (11), and through holes (16) are formed in the end, which is arranged on the outer side of the heat exchange tube (11), of the heat exchange strip (15) at equal intervals.
  3. 3. The spray equipment for heat exchange of the closed cooling tower according to claim 1, wherein the first connecting pipe (13) and the second connecting pipe (14) are rotatably connected with the inner walls at two sides of the shell (1) through bearings, a first bracket (24) and a second bracket (25) are fixedly installed at two sides of the shell (1) respectively, a feeding pipe (27) is fixedly installed at the upper end of one side, far away from the shell (1), of the first bracket (24), a discharging pipe (28) is fixedly installed at one side, far away from the shell (1), of the second bracket (25), and rotary joints (26) are fixedly installed at the discharging end of the feeding pipe (27) and the feeding end of the discharging pipe (28).
  4. 4. The spray equipment for heat exchange of the closed cooling tower according to claim 1, wherein the first connecting pipe (13) is communicated with the feeding pipe (27) through a rotary joint (26), the second connecting pipe (14) is communicated with the discharging pipe (28) through the rotary joint (26), two ends of the heat exchange pipe (11) are communicated with the heat exchange frame (12), and two sides of the heat exchange frame (12) are respectively communicated with the feeding pipe (27) and the discharging pipe (28) through the first connecting pipe (13) and the second connecting pipe (14).
  5. 5. The spray equipment for heat exchange of the closed cooling tower according to claim 1, wherein a liquid guide groove (17) is horizontally formed in the top end of the shell (1), the bottom end of the liquid guide groove (17) is communicated with the spray hole (18), a liquid discharge pipe (35) is fixedly arranged on the upper surface of the shell (1), and the liquid outlet end of the liquid discharge pipe (35) is communicated with the liquid guide groove (17).
  6. 6. The spray equipment for heat exchange of the closed cooling tower according to claim 1, wherein the liquid suction tube (3) is fixedly connected to the inner wall of the bottom end of the first bracket (24), the bottom end of the inner wall of one side of the liquid suction tube (3) is communicated with the bottom end inside the shell (1) through a liquid suction tube (34), the liquid inlet end of the liquid discharge tube (35) is communicated with the bottom end inside the liquid suction tube (3), and the liquid suction tube (34) and the liquid discharge tube (35) are both internally provided with one-way valves (36).
  7. 7. The spray equipment for heat exchange of the closed cooling tower according to claim 1, wherein the upper ends of the inner walls of the two sides of the shell (1) penetrate through and are fixedly provided with a fan bin (4), and the inner wall of the fan bin (4) is fixedly connected with a blower (41).
  8. 8. The spray equipment for heat exchange of the closed cooling tower according to claim 1, wherein the inner wall of one side of the shell (1) far away from the liquid suction pipe (34) is fixedly provided with a liquid injection pipe (37) and a liquid outlet pipe (38) respectively, and the liquid outlet pipe (38) is arranged at the bottom side of the liquid injection pipe (37) and is communicated with the bottom end inside the shell (1).

Description

Spray equipment for heat exchange of closed cooling tower Technical Field The invention relates to the technical field of cooling towers, in particular to spray equipment for heat exchange of a closed cooling tower. Background In various fields of industrial production, refrigeration systems and the like, a closed cooling tower is used as key heat exchange equipment, and is widely applied to cooling various industrial media by virtue of the efficient heat exchange capacity and water-saving property. The core working principle is that the cooling water is sprayed to exchange indirect heat with the medium to be cooled in a closed circulation mode, so that the temperature of the medium to be cooled is reduced, and the stable operation of the subsequent production flow is guaranteed. The inventor finds that at least the following problems in the prior art are not solved, namely, in the traditional closed cooling tower, a heat exchange tube is usually fixedly installed, and a spraying mechanism sprays cooling water from top to bottom. Because the heat exchange tube position is fixed, the cooling water is the trend of falling perpendicularly under the action of gravity, very easily forms the spray dead angle on the heat exchange tube surface, leads to unable and the cooling water abundant contact in partial heat exchange tube district for the effective area of contact of cooling water and heat exchange tube is discounted greatly, and heat exchange is insufficient, has directly restricted the promotion of whole heat exchange efficiency. Meanwhile, a driving system of the existing spraying equipment and a heat exchange mechanism are mutually independent, and a driving device such as a spraying pump and the like is often required to be independently configured to provide power for circulating spraying of cooling water. The method not only increases the complexity of the whole structure of the equipment, leads to the rise of the manufacturing cost of the equipment, but also obviously increases the energy consumption, and does not accord with the development trend of energy conservation and emission reduction in the current industrial field. In addition, the heat exchange structure of the traditional heat exchange tube is single, heat transfer is carried out only by the tube body, the heat exchange area is limited, the heat transfer efficiency is low, and the rapid cooling requirement under the high-load working condition is difficult to meet. In addition, the cooling water is easy to form a continuous liquid film on the surface of the heat exchange tube in the spraying process, and the existence of the liquid film can obstruct the rapid conduction of heat, so that the heat exchange effect is further reduced. For this reason, new solutions need to be designed to solve. Disclosure of Invention The invention aims to provide spray equipment for heat exchange of a closed cooling tower, which can realize uniform spraying, efficient heat exchange and energy-saving circulation. In order to achieve the purpose, the invention provides the following technical scheme that the spray equipment for heat exchange of the closed cooling tower comprises the following components: the heat exchange device comprises a shell, wherein a heat exchange frame is horizontally arranged in the shell, and heat exchange pipes for cooling are horizontally and equidistantly arranged on the inner side of the heat exchange frame; The adjusting mechanism comprises a first connecting pipe and a second connecting pipe which are respectively and fixedly arranged at two ends of the heat exchange frame, a large gear is penetrated and fixedly arranged at the outer side of the first connecting pipe, a servo motor for driving the heat exchange frame and the heat exchange pipe to rotate is fixedly connected at the outer side of the shell, a connecting rod is fixedly arranged at the shaft end of the servo motor, a small gear is penetrated and fixedly arranged at the outer side of the connecting rod, and the small gear is meshed with the large gear; The spraying mechanism comprises spraying holes which are formed in the inner wall of the top end of the shell at equal intervals and used for spraying water, and a liquid suction barrel used for supplying water, wherein a piston is connected in a sliding manner in the liquid suction barrel, a flywheel disc is fixedly arranged at one end of the connecting rod, which is far away from the servo motor, and the outer side of the flywheel disc is connected with the middle part of the upper surface of the piston through a crank connecting rod in a transmission manner. As a preferred implementation mode of the invention, the heat exchange strip is fixedly arranged on the outer side of the heat exchange tube, one end of the heat exchange strip is arranged in the heat exchange tube, and through holes are formed in the end, which is arranged on the outer side of the heat exchange tube, of the heat exchange strip at equal interva