KR200328775Y1 - Counter flow cooling tower - Google Patents

Abstract

The present invention relates to a countercurrent cooling tower, and more particularly, to a countercurrent cooling tower that has a structure that is easy to discharge cooling water and has a structurally stable substructure and has its own sterilization function.

The countercurrent cooling tower according to the present invention includes a rotary shaft installed vertically in the center of the casing, an air supply device coupled to the lower end of the rotary shaft to supply air to the lower tank, and a plurality of inputs in the lower tank for sterilization of the cooling water. A coolant discharge tank having a copper fiber ball, a coolant discharge pipe spirally downwardly formed from a side of the lower tank, and having an inclined bottom surface formed to collect coolant discharged from the coolant discharge pipe and the lower tank to one side, and a coolant discharge tank Consists of a support member for supporting the entire bottom surface of the.

Accordingly, the cooling tower is stably supported on the ground, the circulation of the cooling water is improved to improve the cooling efficiency of the cooling tower, and at the same time, harmful bacteria propagating in the cooling water are removed by itself, so that the cooling water in the lower tank can be kept clean at all times. .

Description

Counter flow cooling tower

The present invention relates to a countercurrent cooling tower, and more particularly, to a countercurrent cooling tower that has a structure that is easy to discharge cooling water and has a structurally stable substructure and has its own sterilization function.

In general, the cooling tower is a cooling water supply device which is essentially used in the air conditioning of buildings, factories and the like.

First, when operating the refrigerator, it is necessary to release heat to liquefy the refrigerant gas in the condenser, which requires a large amount of cooling water. Cooling water deprived of heat from the condenser is sent to the cooling tower, which serves to lower the temperature of the cooling water while contacting the hot cooling water with air.

Cooling towers are classified into open type and closed type, and open type is classified into natural ventilation and forced ventilation. Forced ventilation is a method of obtaining cooling power by forcibly contacting the air by injecting the cooling water while circulating the air inside the cooling tower using a blower. Forced draft cooling towers require more power than blowers, but the circulation of cooling water per unit area of cooling towers is high and the height can be lowered. Therefore, it is most commonly used for air conditioning, injection molding, and large refrigerators in buildings, hotels and factories. It is becoming.

In FIG. 1, a circular countercurrent cooling tower is illustrated as an example of a forced draft cooling tower. As shown, a conventional circular countercurrent cooling tower has a casing 10 forming an appearance, a coolant pipe 20 vertically installed inside the casing 10, and a filler 30 installed inside the casing 10. And, the rotary sprinkler 40 for sprinkling the cooling water supplied from the coolant pipe 20 to the filler 30 side, and the lower tank 50 is installed in the lower casing 10 to collect the cooling water passed through the filler 30 It consists of.

Inside the casing 10, a coolant pipe 20 is installed vertically through the bottom center of the casing 10 to the top of the casing 10.

The rotary sprinkler 40 is installed at the upper end of the coolant pipe 20. The rotary sprinkler 40 is connected to the cooling fan 60 installed in the upper portion and sprinkles the cooling water with the lower filler 30 while rotating together with the cooling fan 60. Cooling water collection unit 70 is installed at the lower end of the cooling water pipe 20 is attached to the outside of the bottom of the casing 10 and is supported on the ground. A coolant inlet 71 and a coolant outlet 72 are formed at the side of the coolant collection unit 70, and a coolant inlet tube (not shown) and a coolant discharge tube (not shown) are connected thereto.

The rotary sprinkler 40 includes nozzles 41 for sprinkling the coolant toward the filler 30 while rotating around the coolant pipe 20 by the drive motor 13 installed on the casing 10. The sprinkled cooling water is rapidly cooled through heat exchange with the opposite air while passing through the filler 30.

Filler 30 is installed on the upper portion of the support grid 80 is installed horizontally in the lower portion of the casing 10 to fill the inside of the casing (10) around the cooling water pipe (20). The support grid 80 is horizontally connected to the casing 10 and supported by a horizontal truss 51 supporting the lower portion of the support grid 80 and a vertical truss 52 supporting the horizontal truss 51. do.

Cooling water passing through the filler 30 is collected in the lower tank 50 of the lower portion of the casing 10, the collected cooling water is filtered in the center of the lower tank 50 to filter impurities contained in the discharged cooling water. It is discharged to the coolant collection tank 70 connected to the bottom of the lower tank 50 via 74. The cooling water introduced into the cooling water collection unit 70 is discharged to the outside of the cooling tower through the cooling water discharge port 72 and the discharged cooling water is supplied to the heat exchanger, and then to the cooling tower through the cooling water inlet 71 of the cooling water collection unit 70. Recycled.

The cooling fan 60 is installed above the casing 10. The cooling fan 60 is rotated about the coolant pipe 20 by the operation of the drive motor 13 and the outside air into the casing 10 through the air inlet 11 provided on the side surface of the lower water tank 50. Inflow. The introduced outside air cools the filler 30 and the cooling water while passing through the lower portion of the filler 30, and then is discharged to the outside through the exhaust port 12 formed at the upper end of the casing 10.

The casing 10 is supported on the ground by the support truss 90 and the coolant collection cylinder 70.

The conventional countercurrent cooling tower configured as described above has the following problems.

First, since the cooling tower is partially supported by the support truss 90 on the lower surface of the casing 10 because of the cooling water collection unit 70 protruding from the bottom center of the casing 10, the supporting structure is very weak. The supporting structure of the cooling tower has a moment load on the cooling tower due to a mismatch in the load path between the load applied to the center of the casing 10 due to the coolant pipe 20 and the supporting load acting on the support truss 90 fixed to the ground. It does not stably support the cooling tower.

In particular, the cooling water collection unit 70 is fastened to the bottom of the casing 10 through a flange generally made of synthetic resin material, due to this fastening structure, the compression tightness of the fastening portion and durability against vertical load is also weak.

Second, since the support grid 80 supporting the filler 30 and the horizontal / vertical support trusses 51 and 52 are installed in the lower tank 50, the lower tank 50 is very complicated and the maintenance space is also narrow. .

Third, when the water level of the cooling water is low, the filter network 74 is exposed to the surface of the water, so that floating bacteria, moss, green algae, etc., which grow on the surface of the cooling water are easily adsorbed, thereby lowering the filtration efficiency and causing unbalanced cooling water circulation. .

Fourth, legionella bacteria (LEGIONELLA), which cause harm to human body, are multiplying in the cooling water in the cooling tower. This legionella bacteria (LEGIONELLA) is delivered to the human respiratory tract through the air, which can cause fatal effects on the human body, so the chemicals are regularly administered and sterilized or suppressed as much as possible using filters. However, such a method can be expected only a certain effect immediately after the administration of the chemical, only in the initial stage of the filter installation, it is difficult to expect a perfect sterilization action because there is always a certain amount of harmful bacteria. In addition, there is a problem that the cost is large compared to the sterilization effect.

The present invention has been made in consideration of the above-described conventional problems, the cooling tower is stably supported on the ground, the casing has a simple structure, the filtration efficiency of the suspended solids and the circulation of the cooling water is improved, and less harmful bacteria propagated in the cooling water. It is an object of the present invention to provide a countercurrent cooling tower that can always be sterilized at a cost.

1 is a partial perspective view showing a conventional countercurrent cooling tower.

Figure 2 is a cross-sectional view showing the configuration of the countercurrent cooling tower according to the present invention.

Figure 3 is an external perspective view of the countercurrent cooling tower according to the present invention.

Figure 4 is a cross-sectional view showing a lower tank of the present invention.

<Explanation of symbols for the main parts of the drawings>

100 Casing 101 Air inlet 103

110 Drive motor 120 Cooling fan 130 Filler

140 ... sprinkler 150 ... sub tank 151 ... copper fiber

152 Cooling water discharge line 160 Rotating shaft 170 Air supply

171 ... Joint 172 ... Air spout 172a ... Blowout

173 Air supply pipe 174 Bearing 180 Copper fiber ball

181 Copper fiber 182 Buoyant body 183 Sheath

190 Coolant outlet 191 Inclined bottom 192 Coolant outlet

200.Support member

In order to achieve the above object, the present invention has a drive motor installed in the upper casing, a cooling fan rotated by the drive motor, a filler installed in the casing, a sprinkling device for spraying the coolant to the filler side, and through the filler A countercurrent cooling tower having a lower water tank where one coolant is collected,

A rotating shaft connected to the driving motor and installed vertically in the center of the casing;

An air supply device coupled to the lower end of the rotating shaft to supply air to the lower tank;

A plurality of copper fiber balls inserted into the lower tank to sterilize the cooling water;

A cooling water discharge tank including a cooling water discharge pipe formed in a spiral downward from a side of the lower water tank, and having an inclined bottom surface where the cooling water discharge pipe and the coolant discharged from the lower water tank are collected, and a cooling water discharge hole formed at the bottom of the inclined bottom surface; And

It includes a support member for closely supporting the entire bottom surface of the cooling water discharge tank.

According to the present invention, a plurality of outside air inlets through which the outside air is introduced is formed on the side wall surface of the casing, and a plurality of support pieces supporting the filler are attached to the inner wall surface of the casing.

In addition, the lower tank is provided with a copper fiber filter net on the side, the bottom surface may be formed to be inclined downward toward the edge of the lower tank.

In addition, the air supply device is a joint fixed to the lower end of the rotary shaft, a plurality of air ejection pipes having a plurality of blow holes formed in the front of the body is radially coupled to the joint and is installed along the bottom of the lower tank, and the bottom of the joint It is connected to the air supply pipe for supplying air into the air ejection pipe, and the air supply pipe and the bearing is provided in the connection portion of the joint.

The features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments based on the accompanying drawings. Prior to this, terms or words used in this specification and claims are defined in the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of a term in order to best describe his or her own design. It must be interpreted to mean meanings and concepts.

As shown in FIG. 2, the countercurrent cooling tower according to the present invention includes a driving motor 110 installed on the casing 100, a cooling fan 120 rotating by the driving motor 110, and a casing 100. Applied to the counterflow type cooling tower having a filler 130 installed inside, a watering device 140 for spraying the coolant toward the filler 130, and a lower water tank 150 for collecting the coolant passing through the filler 130. do. Here, since the components constituting the countercurrent cooling tower have already been described in the related art, a detailed description thereof will be omitted.

The present invention is coupled to the lower end of the rotary shaft 160 and the rotary shaft 160 is installed vertically in the inner center of the casing 100 of the countercurrent cooling tower having the configuration as described above to supply air to the lower tank (150) Inside the supply device 170, a plurality of copper fiber ball 180 that is introduced into the lower tank 150 for sterilization of the cooling water, and the cooling water discharge pipe 152 formed spirally downward from the side of the lower tank 150 Included in the coolant discharge tank 152 and the coolant discharge tank 190 having an inclined bottom surface 191 formed to collect the coolant discharged from the lower water tank 150 to one side, and installed in the lower end of the coolant discharge tank 190 It includes a support member 200 is supported on the ground.

The rotating shaft 160 is connected to the driving motor 110 installed on the upper portion of the casing 100 is installed vertically to the inner center of the casing (100). The rotary shaft 160 is connected to the cooling fan 120 and the watering device 140, the watering device 140 is connected to the cooling water supply pipe 141. In addition, an air supply device 170 for supplying air to the lower water tank 150 is fastened to the lower end of the rotating shaft 160 while rotating together with the rotating shaft 160.

As shown in FIG. 3, the air supply device 170 has a joint 171 fixed to the lower end of the rotation shaft 160, and one end is radially coupled to the joint 171, and the bottom of the lower tank 150 is disposed. A plurality of air ejection pipes 172 installed along and formed with a plurality of ejection holes 172a on the front of the body, and connected to the lower end of the joint 171, an air supply pipe 173 for supplying air into the air ejection pipes 172. And a bearing 174 installed at the connection portion between the air supply pipe 173 and the joint 171.

The joint 171 is fixed to the lower end of the rotating shaft 160 is rotated together with the rotating shaft 160. Fastening holes 171a for fastening the air ejection pipes 172 are formed uniformly in a side of the joint 171. In addition, a coupling hole to which the air supply pipe 173 is coupled is formed below the joint 171 so as to communicate with each of the coupling holes 171a.

On the other hand, a screw thread may be formed on the inner circumferential surface of the fastening holes 171a and the end of the air jet pipe 172 fastened to the joint 171 in order to secure the fastening between the joint 171 and the air jet pipe 172. have.

The air ejection pipe 172 has a straight pipe shape, one end of which is fastened to the fastening hole 171a of the joint 171 and disposed radially in the lower tank 150 around the joint 171, while It is placed close to the floor. The air ejection pipes 172 communicate with each other by the fastening hole 171a of the joint 171 and are rotated in the lower tank 150 together with the joint 171. In addition, a plurality of blow holes 172a for blowing air into the lower water tank 150 are uniformly distributed in the body of the air blow pipe 172.

The air supply pipe 173 is connected to the lower end of the center and supplies air to the air ejection pipe 172. A bearing 174 is installed at the coupling portion between the air supply pipe 173 and the joint 171 so that the air supply pipe 173 does not rotate along the joint 171 and always supplies air into the air supply pipe 173 at a predetermined position. do.

2 and 3, a plurality of outside air inlets 101 are formed at the side of the casing 100, and the coolant inside the casing 100 is prevented from scattering to the outside at the bottom of the outside air inlet 101. Louver 102 is installed to. The outside air inlet 101 is a passage through which outside air flows into the casing 100, and introduces outside air into the casing 100 by the operation of the cooling fan 120 connected to the driving motor 110. In addition, the louver 102 is installed to protrude obliquely toward the outside of the casing 100. In addition, the support pieces 103 for stably supporting the filler 130 are attached to the inner wall surface of the casing 100 in accordance with the height of the top and bottom of the filler 130.

Meanwhile, the inside of the casing 100 may further include a refrigerant coil 210 passing through the filler 130. The refrigerant coil 210 is installed to pass through the filler 130 through the outside air inlet 101, and the refrigerant flowing therein reduces the temperature of the cooling water passing through the filler 130 to improve the cooling efficiency of the cooling tower.

The bottom of the lower tank 150 constituting the lower portion of the casing 100 is formed to be inclined downward from the center of the lower tank 150 toward the edge. Then, the side surface of the lower tank 150, the copper fiber filter net 151 is installed. Accordingly, the coolant collected at the edge along the inclined bottom surface 191 of the lower tank 150 may be easily discharged to the outside through the copper fiber filter network 151. In addition, a plurality of cooling water discharge pipes 152 through which cooling water is discharged in addition to the copper fiber filtration network 151 is connected to the side of the lower water tank 150. The cooling water discharge pipe 152 is formed in a spiral surrounding the outer surface of the lower water tank 150 toward the lower side.

On the other hand, a plurality of copper fiber ball 180 is injected into the lower tank 150. The copper fiber ball 180 is made of a buoyancy body 182 wrapped with copper fiber 181 to sterilize the cooling water in the lower water tank 150, and an outer shell surrounding the buoyancy body 182 consisting of a mixture of charcoal and illite. It is composed of (183) is put into the lower tank 150 to sterilize the cooling water.

As shown in FIG. 4, a cooling water discharge tank 190 is installed below the lower water tank 150. The cooling water discharge tank 190 has an inner space to move the cooling water discharged through the cooling water discharge pipe 152 and the copper fiber filter network 151 while surrounding the outer surface of the lower water tank 150, and the discharged cooling water It has an inclined bottom surface 191 gathered to one side. Cooling water discharge holes 192 through which the coolant exiting the lower water tank 150 are discharged are formed at the lower end of the inclined bottom surface 191. On the other hand, the inner wall surface of the cooling water discharge tank 190 is coated with a mixture of char and illite. The coating unit 193 sterilizes the cooling water while contacting the discharged cooling water.

On the other hand, as shown in Figure 2, at the lower end of the cooling water discharge tank 190, a support member 200 for supporting the entire bottom surface of the cooling water discharge tank 190 is installed. The support member 200 has an inclined upper surface 201 in contact with the inclined bottom surface 191 of the cooling water discharge tank 190 and a horizontal lower surface 202 in contact with the ground.

Referring to the operation of the countercurrent cooling tower according to the present invention made of such a configuration as follows.

When the driving motor 110 of the upper casing 100 operates, the sprinkling apparatus 140 and the cooling fan 120 connected to the rotating shaft 160 rotate while the rotating shaft 160 connected coaxially rotates. The watering device 140 receives the high temperature cooling water heat exchanged with the condenser from the cooling water supply pipe 141 and sprays the water to the filler 130 below. The sprinkled high-temperature cooling water is cooled by heat exchange with the filler 130 while passing through the filler 130 and falls into the lower tank 150.

The cooling fan 120 circulates the air inside the casing 100 by circulating the air inside the casing 100 by introducing the outside air through the outside air inlet 101 and simultaneously discharging the heated casing 100 through the upper part of the casing 100. Prevent the temperature of the rise.

On the other hand, when the refrigerant coil 210 is installed to pass through the filler 130, it is possible to cool the cooling water passing through the filler 130 more quickly can further improve the cooling efficiency of the cooling tower.

Cooling water collected in the lower tank 150 is collected along the inclined bottom to the edge of the lower tank 150 and is discharged to the lower cooling water discharge tank 190 through the copper fiber filter net 151 and the cooling water discharge pipe 152. The spiral cooling water discharge pipe 152 increases the flow rate of the cooling water flowing therein and moves quickly to the bottom of the inclined bottom surface 191, and the cooling water exiting the cooling water discharge pipe 152 is discharged without stagnation through the cooling water discharge hole 192. do.

According to the present invention, the support member 200 installed below the coolant discharge tank 190 has an inclined upper surface 201 supporting the entire inclined bottom surface 191 of the coolant discharge tank 190 and the horizontal lower surface 202. ) Is in surface contact with the ground, it is possible to stably support the cooling water discharge tank 190 and the casing 100 of the upper.

In addition, the lower tank 150 and the casing 100 substructure becomes very simple compared to the prior art. That is, by installing the cooling water discharge tank 190 in the lower portion of the lower tank 150, the cooling water inlet pipe that was connected to the cooling water collection tube as well as not having to install a separate cooling water collection unit below the casing 100 as in the prior art. And by arranging the cooling water discharge pipe to the other side, the casing 100 substructure becomes very simple. In addition, since the plurality of support pieces 103 support the filler 130, the structure of the lower tank 150 is eliminated because the support grid for supporting the entire pillar bottom and the vertical / horizontal truss for supporting the support grid are excluded. Becomes simpler.

Meanwhile, the coolant in the lower water tank 150 is first sterilized by the copper fiber ball 180 introduced into the lower water tank 150 in the process of being discharged, and the inner wall surface of the copper fiber filter net 151 and the cooling water discharge tank 190. Secondary sterilization while passing through the coating portion 193 of char and illite applied to. Copper (銅) contained in the copper fiber ball 180 and the copper fiber filter net 151 inhibits the growth of bacteria, moss, green algae, etc. harmful to the human body, such as Gioneella bacteria generated from the cooling water, in particular, charcoal and The illite component absorbs harmful bacteria and emits negative ions to sterilize harmful bacteria in the cooling water.

In addition, the copper fiber filtration net 151 is installed along the side of the lower tank 150 to prevent bacteria from growing in the filtration net 151, and the filtration area and cooling water discharge area is increased compared to the conventional filtration net filtration The efficiency is improved, which leads to smooth cooling water discharge.

The air supply device 170 increases the sterilization effect of the copper fiber ball 180. That is, the air ejection pipe 172 evenly discharges the air supplied from the air supply pipe 173 into the cooling water through the ejection hole 172a, and at the same time the air ejection pipe 172 rotates together with the rotation shaft 160 to form a lower tank ( Create a vortex within In this case, the air is smoothly supplied to the copper fiber 181 to further increase the sterilization effect, and the circulation of the cooling water in the lower water tank 150 may be improved to reduce the generation of harmful bacteria.

In particular, the air ejection pipe 172 is closely arranged along the bottom of the lower tank 150, the movement of the upper copper fiber ball 180 becomes more active. Accordingly, since the vortex in the cooling water is activated, more air is contacted with the copper fiber ball 180 to increase sterilization.

Therefore, the cooling water can always be kept clean by the self-purifying function without filtering or cooling the cooling water in the lower tank 150 to perform the chemical treatment as in the prior art for sterilizing the cooling water. Since the sterilization cost is not required, the management cost can be greatly reduced as compared with the related art.

According to the countercurrent cooling tower according to the present invention configured as described above, by installing a cooling water discharge tank instead of the conventional cooling water collection tank and the support member has a stable structure for supporting the entire bottom surface of the cooling water discharge tank, the conventional cooling tower The fragile support structure, which was partially supported by the support truss and the coolant collection unit under the casing, can be improved.

In addition, by supporting the filler through a plurality of support pieces, the support grid and vertical / horizontal truss, which have been conventionally installed, are excluded, thereby simplifying the casing substructure and the lower tank structure.

In addition, by downwardly forming the cooling water discharge pipe in a spiral shape and forming the bottom of the cooling water discharge tank inclined to facilitate the discharge of the cooling water, the cooling efficiency of the cooling tower and the filtration efficiency of the floating water may be improved, thereby improving the cooling efficiency of the cooling tower.

In addition, by having a copper fiber ball and an air supply device in the lower tank to have a self-sterilization capacity in the cooling tower can be sterilized harmful bacteria to cool water at a low cost and to keep the cooling water in the lower tank at all times clean.

Although the present invention has been illustrated and described in connection with specific embodiments, the present invention may be variously modified and changed without departing from the spirit or the field of the present invention provided by the following utility model registration claims. It should also be included in the scope of the present invention.

Claims (4)

Drive motor 110 installed on the casing 100, the cooling fan 120 rotated by the drive motor 110, the filler 130 is installed inside the casing 100, and the filler 130 side In the counterflow type cooling tower having a sprinkling device 140 for spraying cooling water and a lower tank 150 for collecting the cooling water passing through the filler 130, A rotating shaft 160 connected to the drive motor 110 and vertically installed inwardly of the casing 100; An air supply device 170 coupled to the lower end of the rotating shaft 160 to supply air to the lower water tank 150; A plurality of copper fiber balls 180 introduced into the lower water tank 150 to sterilize the cooling water; Inclined bottom surface 191 and the inclination of the coolant discharge pipe 152 formed in the spiral downward from the side of the lower water tank 150, the coolant discharge pipe 150 and the coolant discharged from the lower water tank 150, Cooling water discharge tank 190 having a coolant discharge hole 192 formed on the bottom surface 191 and Counter-flow type cooling tower, characterized in that it comprises a support member 200 for supporting the entire bottom surface of the cooling water discharge tank 190 in close contact. The method of claim 1, On the side wall of the casing 100, a plurality of outside air inlets 101 are formed through which outside air is introduced, and a plurality of support pieces 103 supporting the filler 130 are attached to the inner wall of the casing 100. Counterflow type cooling tower characterized by. According to claim 1, wherein the lower tank 150 Copper fiber filter net 151 is installed on the side, the countercurrent cooling tower, characterized in that the bottom surface is formed to be inclined downward toward the edge of the lower tank (150). The method of claim 1, wherein the air supply device 170 A joint 171 fixed to the lower end of the rotation shaft 160; One end is coupled to the joint 171 and is installed along the bottom of the lower tank 150, the air ejection pipe 172 has a plurality of ejection holes (172a) formed on the front of the body; An air supply pipe 173 connected to the lower end of the joint 171 to supply air into the air blowing pipe 172; Counter-current type cooling tower, characterized in that it comprises a bearing (174) installed in the connection portion between the air supply pipe (173) and the joint (171).