CN110779350B

CN110779350B - Shell-and-tube heat pipe cooling tower

Info

Publication number: CN110779350B
Application number: CN201911067095.8A
Authority: CN
Inventors: 王鹏; 李鹏飞
Original assignee: Jinmao Green Building Technology Co Ltd
Current assignee: Jinmao Green Building Technology Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2021-10-08
Anticipated expiration: 2039-11-04
Also published as: CN110779350A

Abstract

The invention discloses a shell-and-tube heat pipe cooling tower, wherein a tower body is divided into an area A serving as a condensation section-an air channel, an area B serving as a heat insulation section and an area C serving as an evaporation section-a circulating water spraying area, wherein the area A and the area C are completely isolated by a partition plate in the area B; the shell-and-tube heat pipe heat exchanger is arranged in the tower body and consists of a condensation section, a heat insulation section and an evaporation section which are sequentially connected; a spraying device is arranged above the evaporation section in the area C, and a water tank is arranged below the evaporation section; a fan is arranged above the condensation section in the area A, and an air inlet grille is arranged below the condensation section. The invention overcomes the defects of the existing cooling tower, separates the air channel from the circulating water, and utilizes the shell-and-tube heat pipe to transfer heat, thereby avoiding the problems of water loss and water pollution; the heat pipe has high heat conduction efficiency, the required air quantity is greatly reduced compared with that of the traditional cooling tower, and meanwhile, the air flue has no spray water and has small wind resistance.

Description

Shell-and-tube heat pipe cooling tower

Technical Field

The invention relates to a cooling tower, in particular to a shell-and-tube heat pipe cooling tower.

Background

The heat pipe is a high-efficiency component for heat transfer by utilizing working medium phase change, the heat conduction capability of the heat pipe exceeds the heat conduction capability of any known metal, and the heat pipe is widely applied to the fields of spaceflight, electronics, energy power, transportation, chemical engineering, metallurgy and the like at present, so that people get rid of the traditional heat exchange mode of obtaining better heat dissipation effect by simply relying on a high-air-volume fan.

The cooling tower is a circulating heat dissipation device, waste heat is absorbed by circulating water, the waste heat enters the tower and is sprayed on a filler, air circulating water is forced to exchange heat by a large-air-volume fan, cold heat exchange is carried out after water is contacted with air, heat is brought into the air by water vapor, the temperature of the circulating water is reduced, and the self-cooling effect is achieved. Therefore, the cooling tower consumes much water, and even limits the application of many areas; impurities are brought into the system by air, so that the problem of water pollution is easily caused; meanwhile, a large-air-volume fan and a motor generate large noise which is difficult to avoid.

Disclosure of Invention

The invention aims to provide a shell-and-tube heat pipe cooling tower, which overcomes the defects of the existing cooling tower, separates an air duct from circulating water, utilizes a shell-and-tube heat pipe to transfer heat, and avoids the problems of water loss and water quality pollution; the heat pipe has higher heat conduction efficiency, the required air volume is greatly reduced compared with that of the traditional cooling tower, meanwhile, spray water is not arranged in the air duct, the wind resistance is smaller, a low-power variable frequency fan can be selected, the air volume self-adjustment can be completed according to the working condition temperature, and the energy-saving and noise-reducing effects are more effective.

In order to achieve the above purpose, the invention provides the following technical scheme:

a shell-and-tube heat pipe cooling tower is characterized in that a tower body is divided into an area A serving as a condensation section-an air channel, an area B serving as a heat insulation section and an area C serving as an evaporation section-a circulating water spraying area, wherein the area A and the area C are completely isolated by a partition plate in the area B;

the shell-and-tube heat pipe exchanger is arranged in the tower body and consists of a condensation section positioned in the area A, a heat insulation section positioned in the area B and an evaporation section positioned in the area C which are sequentially connected, and the shell-and-tube heat pipe exchanger is inclined to the horizontal direction by an included angle of 10-12 degrees;

a spraying device is arranged above the evaporation section in the area C, and a water tank is arranged below the evaporation section;

the area A is located the fan is installed to the top of condensation section, is located the below of this condensation section and is provided with air inlet grille.

Preferably, the condensing section and the evaporating section of the shell-and-tube heat pipe exchanger are both provided with fins.

Preferably, the evaporation section is located below the condensation section.

Preferably, the water tank is communicated with a water pump.

Preferably, the air inlet grille is provided with a temperature sensor.

Preferably, the shell-and-tube heat pipe exchanger is installed in the middle of the cooling tower in the vertical direction.

Preferably, the blower is installed at the top of the zone a.

Preferably, the motor in the fan is a variable frequency motor.

The shell-and-tube heat pipe cooling tower provided by the invention has the beneficial effects that:

1. the water circulation is completely separated from the air circulation, and the water circulation is a closed system, so that the loss of the circulating water is avoided, and the risk of water pollution is also avoided. The running cost is reduced and the reliability of the system is greatly increased.

2. The small air volume fan and the motor are more energy-saving, and the noise pollution is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a cross-sectional view of a shell-and-tube heat pipe cooling tower according to an embodiment of the present invention;

fig. 2 is a rear view of a shell-and-tube heat pipe cooling tower according to an embodiment of the present invention.

Description of reference numerals:

1. a tower body; 2. a shell-and-tube heat pipe heat exchanger; 21. a condensing section; 22. a thermally insulating section; 23. an evaporation section; 3. a fan; 4. a spraying device; 5. a pool; 6. an air inlet grille; 7. a temperature sensor; 8. a partition plate; 9. and (4) a water pump.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

As shown in figures 1 and 2, a shell-and-tube heat pipe cooling tower has a tower body 1 divided into an area A as a condensation section-an air passage, an area B as an adiabatic section, and an area C as an evaporation section-a circulating water spray area. The area A and the area C are completely isolated by a partition plate 8 in the area B, so that the purpose of separating water circulation from air circulation is achieved.

The shell-and-tube heat pipe exchanger 2 is installed in the tower body 1, and in the present embodiment, the shell-and-tube heat pipe exchanger 2 is preferably installed in the middle of the cooling tower in the vertical direction. The shell-and-tube heat pipe exchanger 2 is composed of a condensation section 21, a heat insulation section 22 and an evaporation section 23 which are connected in sequence. The condensation section 21 is located in the area A, the adiabatic section 22 is located in the area B, and the evaporation section 23 is located in the area C.

In an improved manner, fins are mounted on both the condensation section 21 and the evaporation section 23 of the shell-and-tube heat pipe exchanger 2 to increase the heat exchange area. The inclined included angle of the shell-and-tube heat pipe exchanger 2 and the horizontal direction is 10-12 degrees. Preferably, the evaporation section 23 is located below the condensation section 21 to increase the ability of the condensate to flow back to the evaporation section.

And a spraying device 4 is arranged above the evaporation section 23 in the area C, and a water pool 5 is arranged below the evaporation section 23. As shown in fig. 1 and 2, the water tank 5 is communicated with a water pump 9.

The area A is located above the condensation section 21 and is provided with a fan 3, and an air inlet grille 6 is arranged below the condensation section 21. In an improved way, a temperature sensor 7 is arranged on the air inlet grille 6. Preferably, the fan 3 is installed at the top of the zone a. Still further preferably, the motor in the fan 3 is a variable frequency motor.

The circulating hot water at the user end is uniformly sprayed on the fins of the evaporation section 23 through the spraying device 4, the working medium liquid in the heat pipe of the evaporation section 23 absorbs heat and evaporates to form steam, and the steam flows to the condensation section 21 along the heat pipe and emits heat at the condensation section 21. Circulating water cooled by the evaporation section 23 flows into the water tank 5 and enters a circulating water system under the action of the water pump 9 for users to use.

Air is sucked into the area A through the air inlet grille 6 under the action of the fan 3, the air exchanges heat with the condensation section 21, working medium steam in the heat pipe of the condensation section 21 is condensed into liquid, and the working medium liquid flows back to the evaporation section 23 under the capillary action and the gravity action of the porous pipe core.

A temperature sensor 7 is arranged on the air inlet grille 6, and the temperature sensor 7 is used for detecting the air inlet temperature of the system and is linked with the fan 3. When the temperature of the inlet air is reduced, the required air quantity is reduced, and the rotating speed of the fan 3 is reduced. Meanwhile, because the heat pipe has excellent heat-conducting property, the required air quantity is small, and a small-air-quantity fan and a motor can be selected. Further achieving the effects of noise reduction and energy saving.

Above-mentioned shell and tube type heat pipe cooling tower, its beneficial effect does:

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A shell-and-tube heat pipe cooling tower is characterized in that a tower body of the cooling tower is divided into an area A serving as a condensation section-an air channel, an area B serving as a heat insulation section and an area C serving as an evaporation section-a circulating water spraying area, wherein the area A and the area C are completely isolated by a partition plate in the area B;

a fan is arranged above the condensation section in the area A, and an air inlet grille is arranged below the condensation section; the water circulation of the C area is completely separated from the air circulation of the A area, and the water circulation of the C area is a closed system.

2. A shell and tube heat pipe cooling tower as recited in claim 1 wherein both the condensing and evaporating sections of the shell and tube heat pipe heat exchanger are finned.

3. A shell and tube heat pipe cooling tower as defined in claim 1, wherein the evaporator section is located below the condenser section.

4. A shell and tube heat pipe cooling tower as defined in claim 1, wherein the water pool is in communication with a water pump.

5. A shell and tube heat pipe cooling tower as defined in claim 1, wherein the air intake grill is fitted with a temperature sensor.

6. A shell and tube heat pipe cooling tower as defined in claim 1, wherein the shell and tube heat pipe heat exchanger is installed in the middle of the cooling tower in the vertical direction.

7. A shell and tube heat pipe cooling tower as defined in claim 1, wherein the blower is installed at the top of the zone a.

8. A shell and tube heat pipe cooling tower as defined in claim 1, wherein the motor in the blower is a variable frequency motor.