CN221802639U - Quick cooling device for closed cooling tower in summer high-temperature period - Google Patents

Abstract

The utility model relates to the technical field of cooling the temperature of a closed cooling tower, and in particular discloses a rapid cooling device for a closed cooling tower during high temperature periods in summer, comprising an annular water pipe assembly and a power device, wherein the annular water pipe assembly comprises an annular water pipe and a nozzle, which is installed around the outer side of a tubular heat exchanger and is used to cool the tubular heat exchanger, and the power device comprises a stepper motor and a chain, wherein the power device is arranged at the lower side outside the annular water pipe, and the stepper motor drives the chain to drive the annular water pipe to move outside the heat exchange tube. The above-mentioned rapid cooling device is provided with an annular water pipe assembly that can move along the tubular heat exchanger, and external cold water is directly sprayed on the surface of the tubular heat exchanger, thereby improving the uniformity of heat exchange, and due to the presence of the power device, the heat exchange efficiency of the tubular heat exchanger is increased, thereby effectively improving the heat exchange efficiency of the closed cooling tower and reducing the production cost.

Description

A fast cooling device for closed cooling towers during high temperature periods in summer

Technical Field

The utility model relates to the technical field of temperature reduction of closed cooling towers, in particular to a rapid cooling device for closed cooling towers during high temperature periods in summer.

Background Art

A closed cooling tower places a tubular heat exchanger inside the tower, and ensures the cooling effect through heat exchange between circulating air, spray water and circulating water. At present, tubular heat exchangers are commonly used. When cooling the tower, water spraying and air flow heat exchange are generally performed on the outer surface of the tubular heat exchanger to achieve the purpose of cooling the internal tube wall.

In the high temperature environment in summer, the temperature of the medium spray water is also high. When the spray water cools the tubular heat exchanger, the temperature difference between the spray temperature and the inside of the tubular heat exchanger becomes smaller. When the water film attached to the surface of the heat exchange tube absorbs less heat, it reaches a saturated state and is taken away by the fan. The heat taken away is greatly reduced, and the heat of the heat medium cannot be released in full, resulting in a high temperature of the heat medium at the outlet of the cooling tower, affecting the normal operation of the main equipment. In response to this phenomenon during high temperature periods, the method of adding ice cubes inside the water collection pool or configuring refrigeration equipment to force cooling of the spray water in the water collection pool is usually used to increase the temperature difference between the spray water and the tubular heat exchanger, but this solution is more complicated and costly, and its cooling effect is not ideal.

Therefore, it is necessary to propose a technology to improve the above defects.

Utility Model Content

In view of the above-mentioned deficiencies and defects of the cooling tower cooling device in the prior art, the purpose of the utility model is to provide a rapid cooling device for a closed cooling tower during high temperature periods in summer. By arranging an annular water pipe assembly and a stepper motor, the annular water pipe assembly can move toward each other along the tubular heat exchange tube, thereby enhancing the cooling effect of the closed cooling tower.

To achieve the above purpose, the utility model provides a fast cooling device for a closed cooling tower during high temperature periods in summer, comprising:

An annular water pipe assembly and a power device, wherein the annular water pipe assembly includes an annular water pipe and a nozzle, and the annular water pipe assembly is arranged around the outer side of the tubular heat exchanger. The power device includes a stepping motor and a chain, and the power device is arranged below the outer side of the annular water pipe assembly.

As a preferred technical solution, the annular water pipe is arranged in a square shape around the outer side of the tubular heat exchanger, the nozzles are evenly arranged on the inner side of the annular water pipe, and the stepper motor drives the annular water pipe to move outside the tubular heat exchanger through the chain.

As a preferred technical solution, the annular water pipes include multiple groups, and the stepper motor drives the chain to make two groups of annular water pipes run synchronously and at a uniform speed towards each other along the heat exchange tubes.

As a preferred technical solution, a water hose is also connected to the outside of the annular water pipe assembly to ensure water supply of the annular water pipe assembly.

As a preferred technical solution, a water collecting tank is also provided at the bottom of the cooling tower, and the water collecting tank serves as a supplementary water source to make up for the water replenishment of the water system.

As a preferred technical solution, a water replenishment port is provided on one side of the water collecting pool, a spray pump is provided on the other side of the water collecting pool, and a spray pipe group is installed at the pump port of the spray pump.

As a preferred technical solution, a nozzle group is arranged above the tubular heat exchanger, and the nozzle group is connected to the spray pipe.

As described above, the rapid cooling device for the closed cooling tower used in the high temperature period in summer provided by the utility model has the following beneficial effects:

The utility model arranges an annular water pipe assembly on the outer side of the tubular heat exchange tube, and drives the annular water pipe assembly to move synchronously toward each other along the tubular heat exchanger through a stepping motor, and a nozzle group is also arranged above the tubular heat exchanger. When the nozzle is opened, a water ring is formed, and external cold water is directly sprayed onto the outer surface of the heat exchange tube to form a water film, and the heat of the medium in the tube is taken away by heat exchange. In order to improve the uniformity of heat exchange, the tubular heat exchanger can be effectively cooled in a high temperature environment in summer, the heat exchange efficiency of the unit is increased, and the cooling effect is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram showing the structure of the present utility model;

FIG2 is a schematic diagram of the side structure of the present invention;

FIG3 is a partial enlarged view of the A direction shown in FIG1 ;

1. Spray pump; 2. Spray pipe group; 3. Nozzle group; 4. Tubular heat exchanger; 5. Annular water pipe assembly; 501. Annular water pipe; 502. Nozzle; 6. Water delivery hose; 7. Water inlet; 8. Water collection tank; 9. Power unit; 901. Stepper motor; 902. Chain.

DETAILED DESCRIPTION

The following is an explanation of the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the utility model in a schematic manner. Although the illustrations only show components related to the utility model rather than being drawn according to the number, shape and size of components in actual implementation, the form, quantity, positional relationship and proportion of each component in actual implementation can be changed at will under the premise of realizing the technical solution of this party, and the component layout form may also be more complicated.

Example

The present embodiment provides a rapid cooling device for a closed cooling tower during high temperature periods in summer. Referring to FIG1 , the cooling device includes an annular water pipe assembly 5, a power device 9 and a spray pump 1. The annular water pipe assembly 5 includes an annular water pipe 501 and a nozzle 502. The annular water pipe 501 is arranged in a square shape around the outer side of the tubular heat exchanger 4, and the nozzles 502 are evenly arranged on the inner side of the annular water pipe 501. Preferably, referring to FIG2 , in the present embodiment, each annular water pipe 501 is evenly arranged with 14 nozzles 502. The power device 9 includes a stepping motor 901 and a chain 902, which are used to drive the annular water pipe assembly 5 to move uniformly toward each other along the tubular heat exchanger 4.

Still referring to FIG. 1 , a water collecting pool 8 is provided at the bottom of the cooling tower. After the spray cooling is completed, the water that falls naturally by gravity falls into the water collecting pool 8 as a supplementary water source to make up for the water replenishment of the water system. A water replenishment port 7 is provided on one side of the water collecting pool 8, and a spray pump 1 is provided on the other side of the water collecting pool. One end of the spray pump 1 is connected to the water collecting pool 8, and the other end is connected to the spray pipe group 2. A nozzle group 3 is also provided above the tubular heat exchanger 4. The nozzle group 3 is connected to the spray pump 1 through the spray pipe group 2 to complete the water delivery work. A water delivery hose 6 is also installed on one side of the annular water pipe assembly 5 to input external cold water into the annular water pipe assembly 5.

In summary, the utility model provides an annular water pipe assembly and a power device, and the stepper motor in the power system drives the chain to make the annular water pipe assembly move evenly along the outside of the tubular heat exchanger, and directly spray external cold water on the surface of the tubular heat exchanger to improve the uniformity of heat exchange. In addition, due to the presence of the power device, the heat exchange efficiency of the tubular heat exchanger is increased, the heat exchange efficiency of the closed cooling tower is effectively improved, and the production cost is reduced.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims (7)

1. A rapid cooling device for a closed cooling tower during high temperature periods in summer, comprising an annular water pipe assembly and a power device, characterized in that the annular water pipe assembly comprises an annular water pipe and a nozzle, the annular water pipe assembly is arranged around the outer side of a tubular heat exchanger, the power device comprises a stepping motor and a chain, and the power device is arranged below the outer side of the annular water pipe assembly. 2. According to claim 1, the rapid cooling device for the closed cooling tower during high temperature periods in summer is characterized in that the annular water pipe is arranged in a square shape around the outer side of the tubular heat exchanger, the nozzles are evenly arranged on the inner side of the annular water pipe, and the stepper motor drives the annular water pipe to move along the outer side of the tubular heat exchanger through the chain. 3. The rapid cooling device for a closed cooling tower during high temperature periods in summer according to claim 2 is characterized in that the annular water pipes comprise multiple groups, and the stepper motor drives the chain to make two groups of annular water pipes run synchronously and at a uniform speed in opposite directions along the tubular heat exchanger. 4. The rapid cooling device for a closed cooling tower in high temperature periods in summer according to claim 1 is characterized in that a water supply hose is also connected to the outside of the annular water pipe assembly to ensure water supply of the annular water pipe assembly. 5. The rapid cooling device for a closed cooling tower used in high temperature periods in summer according to claim 1 is characterized in that a water collecting pool is also provided at the bottom of the cooling tower, and the water collecting pool serves as a supplementary water source to make up for the water replenishment of the water system. 6. The rapid cooling device for use in a closed cooling tower during high temperature periods in summer according to claim 5 is characterized in that a water replenishment port is provided on one side of the water collecting tank, a spray pump is also provided on the other side of the water collecting tank, and a spray pipe group is also installed at the pump port of the spray pump. 7. The rapid cooling device for use in a closed cooling tower during high temperature periods in summer according to claim 6, characterized in that a nozzle group is provided above the tubular heat exchanger, and the nozzle group is connected to the spray pipe group.