JP2017122516A - Evaporation type cooler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an evaporation type cooler capable of suppressing increase of electric power consumption and suppressing increase of a consumption of cooling water.SOLUTION: An evaporation type cooler comprises a fluid flow pipe having a heat transfer property for letting a fluid to be cooled flow, a water absorption member which is installed to cover the outer surface of the fluid flow pipe and has a water absorbing property, a water supply part supplying water to the water absorption member, and a gas supply part which supplies a gas to the water absorbed into the water absorption member to make the fluid to be cooled in the fluid flow pipe radiate heat by evaporative latent heat of the water to cool the same. The water supply part has plural water supply ports capable of supplying water, which generates the evaporative latent heat necessary for cooling the fluid to be cooled, to the water absorption member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an evaporative cooler that cools a fluid to be cooled with the latent heat of vaporization of water.

  Conventionally, in a cooling device used in an air conditioning facility, a freezer, a refrigerator, or an ice making machine, a refrigeration cycle is configured in which a compressor, a condenser, an expansion valve, and an evaporator are connected by a refrigerant circulation pipe. When the refrigerant to be circulated in the refrigeration cycle is compressed by the compressor, it is overheated, discharged, introduced into the condenser, and condensed.

  Here, the condenser includes a water-cooled condenser, an air-cooled condenser, an evaporation condenser, and the like. A cooling tower may be used as an example of a water-cooled condenser (see Patent Document 1). As described in Patent Document 1, the cooling tower is used as an accessory machine for a water-cooled condenser and is used to cool the cooling water heated by the water-cooled condenser. The cooling tower guides warm cooling water into the tower, spreads it on the surface of the packing material, applies the outside air taken by the blower to the cooling water, evaporates a part of it, and uses the latent heat at the time of evaporation to leave the rest. Cool the water. The amount of water evaporation increases as the wet bulb temperature of the incoming air decreases. Since this cooling tower has a relatively high condensation temperature, an evaporative condenser (evaporative condenser) that can keep the condensation temperature low may be used as the condenser (see Patent Document 2).

  As described in Patent Document 2, the evaporative condenser guides refrigerant vapor into the cooling pipe and spreads cooling water on the outer surface of the cooling pipe. The cooling water takes heat from the high-temperature refrigerant vapor in the cooling pipe and evaporates, and the refrigerant vapor takes heat and condenses. Furthermore, the outside air is taken in by the blower to promote the evaporation of the cooling water. A small amount of the cooling water sprayed on the cooling pipe surface evaporates, and the cooling water that has not evaporated returns to the cooling water tank formed in the lower part and is again sprayed on the cooling pipe surface by the pump. . Some of the surfaces of the cooling pipes are provided with a filler for increasing the cooling effect of the refrigerant vapor by extending the contact time between the cooling pipes and the cooling water.

Japanese Patent Laid-Open No. 11-23111 JP 2011-47528 A

  In the cooling tower and the evaporative condenser, power consumption increases because a pump for circulating the cooling water and a pump for recirculating the cooling water are provided. In addition, in the cooling tower and the evaporative condenser, in which the filler is provided on the surface of the cooling pipe, the pressure loss of the air flowing between the adjacent cooling pipes increases, and the fan power increases. Furthermore, in cooling towers, there is a risk of entrainment of cooling water when spraying the cooling water on the filler surface. Even in the case of evaporative condensers, entrainment of cooling water is also entrained when spraying cooling water to the cooling pipe. May occur and the consumption of cooling water increases.

  At least one embodiment of the present invention is an invention made on the basis of such a state of the art, and the object is to suppress an increase in power consumption and to reduce the consumption of cooling water. It is an object of the present invention to provide an evaporative cooler that can suppress an increase in the amount of heat.

(1) An evaporative cooler according to at least one embodiment of the present invention includes:
A fluid distribution pipe for flowing a fluid to be cooled with heat conductivity;
A water absorbing member mounted so as to cover the outer surface of the fluid circulation pipe and having water content;
A water supply unit for supplying water to the water absorbing member;
A gas supply unit that supplies gas to the water absorbed by the water absorbing member and radiates and cools the cooled fluid in the fluid circulation pipe by the latent heat of vaporization of the water; and
The water supply unit includes a plurality of water supply ports that can supply water that generates latent heat of evaporation necessary for cooling the cooled fluid to the water absorbing member.

  The evaporative cooler described in (1) above has a heat transfer property and a fluid circulation pipe for flowing a fluid to be cooled, and water absorption that is mounted so as to cover the outer surface of the fluid circulation pipe and has water content A member, a water supply unit for supplying water to the water absorption member, and a gas supply unit for supplying gas to the water absorbed by the water absorption member and dissipating the cooled fluid in the fluid circulation pipe by the latent heat of water evaporation And comprising. The water supply unit is configured to have a plurality of water supply ports that can supply water that generates latent heat of evaporation necessary for cooling the fluid to be cooled to the water absorbing member. When water to be cooled is flowing through the fluid circulation pipe and water is supplied from the water supply unit to the water absorbing member, the water absorbed by the water absorbing member takes heat from the cooled fluid and absorbs it. Then evaporate. For this reason, the fluid to be cooled can be cooled by the evaporation latent heat of water. Further, the water supplied to the water absorbing member is water that generates latent heat of vaporization required for cooling the fluid to be cooled, so the amount of water supplied is the minimum necessary for cooling the fluid to be cooled. The amount can be made. For this reason, it is possible to evaporate most of the water supplied to the water absorbing member. For this reason, the splash entrainment of water can be prevented and the increase in the consumption of the water supplied from a water supply part can be suppressed. Moreover, evaporation of water can be accelerated | stimulated by supplying gas to the water absorbed by the water absorption member by the gas supply part. For this reason, the cooling water can be cooled to a lower temperature by utilizing the latent heat of vaporization of water. Therefore, it is possible to realize an evaporative cooler that can suppress an increase in power consumption and can suppress an increase in the consumption of cooling water.

(2) An evaporative cooler according to at least one embodiment of the present invention includes:
A gas flow path for flowing gas;
A water absorbing member disposed along the gas flow path and having water content;
A water supply unit for supplying water to the water absorbing member;
A gas supply unit configured to supply the gas to the water absorbed by the water absorption member by flowing the gas in the gas flow path and to dissipate and cool the gas by the latent heat of evaporation of the water; and
The water supply unit is configured to have a plurality of water supply ports that can supply water that generates latent heat of evaporation necessary for cooling the gas to the water absorbing member.

  The evaporative cooler described in the above (2) includes a gas flow channel for flowing gas, a water absorbing member disposed along the gas flow channel and having water content, and water in the water absorbing member. And a gas supply unit for supplying gas to the water absorbed by the water absorption member and dissipating the gas by the latent heat of water evaporation to cool the water. . The water supply unit is configured to have a plurality of water supply ports that can supply water that generates latent heat of vaporization required for cooling the gas to the water absorbing member. When gas whose temperature has risen is flowing through the gas flow path, if water is supplied from the water supply unit to the water absorbing member, the water absorbed by the water absorbing member takes out heat from the gas and absorbs and evaporates. To do. For this reason, gas can be cooled by the evaporation latent heat of water. In addition, since the water supplied to the water absorbing member is water that generates latent heat of vaporization necessary for cooling the gas, the amount of supplied water is set to the minimum necessary amount for cooling the gas. Can do. For this reason, it is possible to evaporate most of the water supplied to the water absorbing member. For this reason, the splash entrainment of water can be prevented and the increase in the consumption of the water supplied from a water supply part can be suppressed. Moreover, since the water absorbed by the water absorbing member is located in the gas circulation channel, evaporation of water can be promoted when gas is supplied into the gas circulation channel by the gas supply unit. For this reason, the gas can be cooled to a lower temperature by utilizing the latent heat of vaporization of water. Therefore, it is possible to realize an evaporative cooler that can suppress an increase in power consumption and can suppress an increase in the consumption of cooling water.

(3) In some embodiments, in the evaporative cooler described in (1) above,
The fluid to be cooled includes cooling water of a water-cooled condenser,
The fluid circulation pipe is configured to include a cooling pipe through which cooling water whose temperature has increased with the heat exchanger of the water-cooled condenser flows.

  According to the evaporative cooler described in the above (3), the fluid to be cooled includes the cooling water of the water-cooled condenser, and the temperature of the fluid circulation pipe has increased with the heat exchanger of the water-cooled condenser. A cooling pipe through which cooling water flows is configured. When water is supplied from the water supply unit to the water absorption member while the cooling water whose temperature has risen in the cooling pipe, the water absorbed in the water absorption member takes out heat from the cooling water whose temperature has increased and absorbs it. Evaporate. For this reason, the cooling water whose temperature has been increased by the latent heat of vaporization of water can be cooled. Further, since the water supplied to the water absorbing member is water that generates latent heat of vaporization necessary for cooling the cooling water, the amount of the supplied water is set to the minimum necessary amount for cooling the cooling water. can do. For this reason, most of the water supplied to the water absorbing member can be evaporated. For this reason, the splash entrainment of water can be prevented and the increase in the consumption of the water supplied from a water supply part can be suppressed. Moreover, evaporation of water can be accelerated | stimulated by supplying air to the water absorbed by the water absorption member by the gas supply part. For this reason, the cooling water can be cooled to a lower temperature by utilizing the latent heat of vaporization of water. For this reason, the evaporative cooler described in the above (3) can be used as an alternative to the cooling tower used as an accessory of the water-cooled cooler. Therefore, an increase in the consumption of cooling water can be suppressed as compared with the cooling tower.

(4) In some embodiments, in the evaporative cooler described in (1) above,
The cooled fluid includes a refrigerant gas of an evaporative condenser,
The fluid circulation pipe includes a refrigerant circulation pipe through which the refrigerant gas of the evaporative condenser flows,
The gas supply unit is configured to supply the gas to the water absorbed by the water absorbing member and to dissipate and condense the refrigerant gas flowing in the refrigerant flow pipe by evaporation of the water.

  According to the evaporative cooler described in (4) above, the fluid to be cooled includes the refrigerant gas of the evaporative condenser, and the fluid circulation pipe includes the refrigerant circulation pipe through which the refrigerant gas of the evaporative condenser flows. The gas supply unit is configured to supply gas to the water absorbed by the water absorbing member and to dissipate and condense the refrigerant gas flowing in the refrigerant flow pipe by evaporation of the water. When water is supplied from the water supply unit to the water absorption member when the refrigerant gas whose temperature has risen after cooling flows through the refrigerant flow pipe, the water absorbed in the water absorption member is heated from the refrigerant gas whose temperature has increased. Absorb and evaporate. For this reason, the refrigerant gas whose temperature has been increased by the latent heat of vaporization of water can be cooled and condensed. Further, since the water supplied to the water absorbing member is water that generates latent heat of vaporization necessary for condensing the refrigerant gas, the amount of water supplied is the minimum necessary amount for condensing the refrigerant gas. Can be. For this reason, most of the water supplied to the water absorbing member can be evaporated. For this reason, the splash entrainment of water can be prevented and the increase in the consumption of the water supplied from a water supply part can be suppressed. Moreover, evaporation of water can be accelerated | stimulated by supplying gas to the water absorbed by the water absorption member by the gas supply part. For this reason, refrigerant gas can be condensed more efficiently using the evaporation latent heat of water. Therefore, the evaporative cooler described in the above (4) can be used as an alternative to the evaporative condenser (evaporative condenser) that condenses the refrigerant gas of the generating condenser. Therefore, compared with the case where an evaporative condenser (evaporative condenser) is used, an increase in cooling water consumption can be suppressed.

(5) In some embodiments, in the evaporative cooler according to any one of (1), (3), and (4) above,
The water supply unit is disposed at a position above the fluid circulation pipe extending in a substantially horizontal direction and stores water, and a plurality of water supply units that communicate with the tank and form the water supply port at a lower end portion and extend in the vertical direction. Equipped with a water supply nozzle,
The plurality of water supply nozzles are disposed at intervals above the fluid circulation pipe extending in a substantially horizontal direction along the direction in which the fluid circulation pipe extends,
Each of the plurality of water supply nozzles is arranged at a position where water dripped from the water supply port of the water supply nozzle can drop onto the water absorbing member due to the gravity of water corresponding to the depth of water stored in the tank. It is configured as provided.

  According to the evaporative cooler described in (5) above, the water supply unit is disposed at a position above the fluid circulation pipe extending in the substantially horizontal direction and stores water, and the water supply unit supplies water to the lower end portion in communication with the tank. A plurality of water supply nozzles that form a mouth and extend in the vertical direction are provided. The plurality of water supply nozzles are disposed at intervals above the fluid circulation pipe extending in the substantially horizontal direction along the direction in which the fluid circulation pipe extends. Each of the plurality of water supply nozzles is disposed at a position where the water dripped from the water supply port of the water supply nozzle due to the gravity of the water stored in the tank can fall on the water absorbing member. Yes. The water stored in the tank is dropped from the water supply port through the water supply nozzle by the gravity of the water according to the depth of the water in the tank. For this reason, since water is dripped similarly from a some water supply nozzle, water can be uniformly supplied along the axial center direction of a fluid distribution pipe to the water absorption member with which the fluid distribution pipe was equipped. For this reason, a to-be-cooled fluid can be cooled effectively.

(6) In some embodiments, in the evaporative cooler according to any one of (1), (3), and (4) above,
The water supply part extends along a direction in which the fluid circulation pipe extends to a position above the cooling pipe extending in a substantially horizontal direction, stores a water therein, and opens to a lower surface of the tank to open the fluid circulation pipe A plurality of the water supply ports arranged at intervals along the extending direction of
Each of the plurality of water supply ports is disposed at a position where water dropped from the water supply port by the gravity of water corresponding to the depth of water stored in the tank can be dropped onto the water absorbing member. Configured as follows.

  According to the evaporative cooler described in (6) above, the water supply section extends along the direction in which the fluid circulation pipe extends to a position above the fluid circulation pipe extending in the substantially horizontal direction, and stores the water. And a plurality of water supply ports that are open at the lower surface of the tank and are arranged at intervals along the direction in which the fluid circulation pipe extends. Each of the plurality of water supply ports is disposed at a position where water dropped from the water supply port by the gravity of water corresponding to the depth of water stored in the tank can be dropped onto the water absorbing member. The water stored in the tank is dripped from the water supply port by the gravity of the water according to the depth of the water in the tank. For this reason, since water is dripped similarly from a some water supply port, water can be uniformly supplied along the axial center direction of a fluid circulation pipe to the water absorption member with which the fluid circulation pipe was equipped. For this reason, a to-be-cooled fluid can be cooled effectively. Moreover, since water is dripped directly from the water supply port provided in the tank, a water supply nozzle becomes unnecessary. For this reason, the structure of a water supply part can be simplified and the cost of a water supply part can be made cheap.

(7) In some embodiments, in the evaporative cooler according to any one of (1) to (6) above,
The amount of water dripped from the water supply port is configured to be set based on the depth of water stored in the tank and the inner diameter of the water supply port.

  According to the evaporative cooler described in (7) above, the amount of water dripped from the water supply port is set based on the depth of water stored in the tank and the inner diameter of the water supply port. When the depth of water stored in the tank is relatively large, the amount of water dripped from the water supply port increases, and when the depth of water stored in the tank is relatively small, from the water supply port The amount of water dripped is reduced. For this reason, it is necessary to cool the air by setting the inner diameter of the water supply port so that the water that generates the latent heat of vaporization necessary for cooling the air is secured when the water depth is relatively small. A minimum amount of water can always be supplied to the water absorbing member.

(8) In some embodiments, in the evaporative cooler described in (1) above,
The water supply unit is disposed at an upper position of the fluid circulation pipe extending in a substantially horizontal direction and stores water,
A lower tank that extends along a direction in which the fluid circulation pipe extends to a position below the fluid circulation pipe and is supplied with water from the upper tank;
It has water retention, one end is connected to the water absorbing member, and the other end is immersed in water stored in the lower tank, and water in the lower tank can be supplied to the water absorbing member by capillary action And a water supply member.

  According to the evaporative cooler described in (8) above, it has water retention, one end is connected to the water absorbing member, and the other end is immersed in water stored in the lower tank. A water supply member capable of supplying water to the water absorbing member by capillary action is provided. Here, the capillary phenomenon is a phenomenon in which water is moved a certain distance with respect to the capillary by using the diameter of the capillary or the surface tension of the water as a parameter. For this reason, by utilizing the capillary phenomenon, it is possible to always supply water to the water absorbing member, and the minimum necessary amount of water that generates latent heat of evaporation necessary for cooling the fluid to be cooled. Can be supplied to the water absorbing member.

(9) In some embodiments, in the evaporative cooler described in (8) above,
In the water supply member, a height from a level of water in the lower tank to a connection position where the water supply member is connected to the water absorbing member is constant along a direction in which the fluid circulation pipe extends. It is provided to become.

  According to the evaporative cooler described in (9) above, the water supply member has a height from the level of the water in the lower tank to the connection position where the water supply member is connected to the water absorption member. It is provided so as to be constant along the extending direction. For this reason, the supply amount of water in the extending direction of the water absorbing member can be made uniform, and the cooling water can be reliably cooled using the latent heat of evaporation of water. For this reason, the splash entrainment of water can be prevented reliably, and the increase in the consumption of the water supplied from a water supply part can be suppressed more.

  According to at least some embodiments of the present invention, it is possible to provide an evaporative cooler that can suppress an increase in power consumption and can suppress an increase in consumption of cooling water.

1 is a cross-sectional structure diagram illustrating an overall configuration of an evaporative cooler according to an embodiment of the present invention. It is a block diagram which shows the whole structure of the evaporative cooler by which the water absorption member concerning other embodiment of this invention was extended in the up-down direction. It is a block diagram which shows the whole structure of the evaporative cooler by which the water absorption member concerning other embodiment of this invention was extended in the horizontal direction. 1 is an overall structural diagram of an evaporative cooler according to an embodiment of the present invention for cooling cooling water of a water-cooled cooler. It is a cross-section figure of the cooling tower which cools the cooling water of the water cooling type | system | group cooling device used as the comparison object of the evaporative cooling device shown in FIG. 1 is an overall structural diagram of an evaporative cooler according to an embodiment of the present invention for cooling a refrigerant in a cooling device. It is a cross-sectional structure figure of the evaporative condenser used as the comparison object of the evaporative cooler shown in FIG. It is a whole structure figure of the water supply part of the evaporative cooler concerning one embodiment of the present invention. It is a whole structure figure of the water supply part of the evaporative cooler concerning other embodiments of the present invention. FIG. 4A is a partial perspective view showing the overall configuration of an evaporative cooler according to another embodiment of the present invention, and FIG. 4B is a side view showing the overall configuration of the evaporative cooler. .

  Embodiments of the present invention will be described below with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are not intended to limit the scope of the present invention to that unless otherwise specified.

  For example, expressions expressing relative or absolute arrangements such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial” are strictly In addition to such an arrangement, it is also possible to represent a state of relative displacement with an angle or a distance such that tolerance or the same function can be obtained.

  For example, an expression indicating that things such as “identical”, “equal”, and “homogeneous” are in an equal state not only represents an exactly equal state, but also has a tolerance or a difference that can provide the same function. It also represents the existing state.

  For example, expressions representing shapes such as quadrangular shapes and cylindrical shapes represent not only geometrically strict shapes such as quadrangular shapes and cylindrical shapes, but also irregularities and chamfers as long as the same effects can be obtained. A shape including a part or the like is also expressed.

  On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one constituent element are not exclusive expressions for excluding the existence of the other constituent elements.

  In the following description, the same components may be denoted by the same reference numerals and detailed description thereof may be omitted.

  FIG. 1 is a cross-sectional structure diagram showing the overall configuration of an evaporative cooler 1 according to an embodiment of the present invention. As shown in FIG. 1, the evaporative cooler 1 of the present embodiment is mounted so as to cover the outer surface of the fluid circulation pipe 10 and the fluid circulation pipe 10 that has heat conductivity and allows the fluid R to flow. The water absorbing member 20 having water content, the water supply portion 30 for supplying the water W to the water absorbing member 20, and the air A is supplied to the water absorbed by the water absorbing member 20 and the fluid is generated by the latent heat of evaporation of the water W. A gas supply unit 40 that radiates and cools the fluid R to be cooled in the flow pipe 10, and the water supply unit 30 generates water W that generates latent heat of vaporization for cooling the fluid R to be cooled. 20 is provided with a plurality of water supply ports 31a (see FIG. 8) that can be supplied.

  In the illustrated embodiment, the fluid flow pipe 10 is circular and formed of a metal material. For this reason, the fluid circulation pipe 10 has good heat conductivity. For this reason, the heat of the cooling water R ′ (cooled fluid R) in the fluid circulation pipe 10 can be transmitted to the water W attached to the water absorbing member 20 via the fluid circulation pipe 10. In the illustrated embodiment, the fluid circulation pipe 10 is cylindrical. However, the fluid circulation pipe 10 is not limited to a cylindrical shape, but is a rectangular cylinder such as a square cylinder or a rectangular cylinder, a polygonal cylinder, or an elliptic cylinder. It may be a shape.

  The water absorbing member 20 is configured to absorb the water W and hold the water W. That is, the water absorbing member 20 has hydrophilicity in addition to water content. For this reason, the water absorbing member 20 can hold the absorbed water W in the water absorbing member 20 to be brought into contact with the surface of the fluid circulation pipe 10, and the cooling water R ′ and the water W in the fluid circulation pipe 10 Heat exchange can be facilitated.

  The water absorbing member 20 is formed of a hydrophilic cloth or foam metal. When the water absorbing member 20 is a cloth, the cloth is freely deformable and inexpensive, so that the work of attaching the cloth to the fluid circulation pipe 10 can be facilitated, and an increase in cost is suppressed. be able to. Further, when the water absorbing member 20 is a foam metal, the foam metal has a high heat transfer property. Therefore, even if the water W absorbed by the foam metal does not contact the surface of the water absorbent member 20, the cooling water R The heat of 'can be transferred to the water W through the foam metal and absorbed by the water W. For this reason, cooling of the cooling water R ′ using the latent heat of vaporization of the water W can be performed more effectively.

  FIG. 8 is an overall structural diagram of the water supply unit 30 of the evaporative cooler 1 according to the embodiment of the present invention. As shown in FIGS. 1 and 8, the water supply unit 30 is disposed at a position above the fluid circulation pipe 10 extending in a substantially horizontal direction and stores a water W and a bottom portion of the tank 33 connected to the bottom of the tank 33. Are provided with a plurality of water supply nozzles 31 that extend in the vertical direction and the water supply nozzles 31 extend in a direction in which the fluid circulation pipe 10 extends above the fluid circulation pipe 10 that extends in a substantially horizontal direction. The plurality of water supply nozzles 31 are arranged at intervals along the water, and each of the plurality of water supply nozzles 31 is dripped from the water supply port 31a of the water supply nozzle 31 by the gravity of the water W according to the liquid depth h of the water W stored in the tank 33. W is disposed at a position where it can drop onto the water absorbing member 20.

  In the illustrated embodiment, the tank 33 is formed in a rectangular parallelepiped shape with a hollow interior and an open top. Water W is stored in the tank 33. On the bottom surface of the tank 33, a plurality of holes 34 provided at predetermined intervals in the longitudinal direction of the tank 33 are formed. A water supply nozzle 31 corresponding to each of the plurality of holes 34 is connected to communicate with each other. The water supply nozzle 31 may be connected to the side surface of the tank 33 as shown in FIG.

  The water supply nozzle 31 includes a through hole 31b on the inner side. The water W flowing through the through hole 31b is dripped from a water supply port 31a that opens at the lower end of the water supply nozzle 31. The water supply nozzle 31 may be made of a deformable resin, or may be made of a non-deformable metal, plastic, or the like. Since the water supply port 31a is provided above the water absorbing member 20 at a predetermined interval, the water W dripped from the water supply port 31a can be reliably supplied to the water absorbing member 20 without deviation.

  The amount of water W dripped from the water supply port 31a is an amount corresponding to the water W in which the latent heat of vaporization necessary for cooling the cooling water R ′ is generated, and this amount of water W can be supplied to the cooling water R ′. As described above, the depth h of the water W stored in the tank 33 and the inner diameter of the water supply port 31a are set. Here, the amount of water W dripped from the water supply nozzle 31 varies according to the liquid depth h of the water W stored in the tank 33 and the inner diameter of the water supply port 31a. For example, when the liquid depth h of the water W stored in the tank 33 is relatively large, the amount of the water W dripped from the water supply port 31a increases, and the liquid depth h of the water W stored in the tank 33 is compared. If it is small, the amount of water W dripped from the water supply port 31a decreases. For this reason, even when the liquid depth h of the water W is relatively small, the cooling water R 'can be cooled by setting the inner diameter of the water supply port 31a so that the water W that generates the latent heat of vaporization necessary for cooling the cooling water R' can be secured. The minimum water W necessary for cooling the water R ′ can always be supplied to the water absorbing member 20.

  As shown in FIG. 1, the gas supply unit 40 includes a fan 41 installed on the radially outer side of the fluid circulation pipe 10 and a motor 42 that rotates the propeller 41 a of the fan 41. When the propeller 41a rotates, the air A flows from one side outside the radial direction of the fluid circulation pipe 10 to the other side.

  When the water W is supplied from the water supply unit 30 to the water absorbing member 20 when the cooling water R ′ having a raised temperature flows through the fluid circulation pipe 10 of the evaporative cooler 1 configured as described above, The water W absorbed by the absorbing member 20 takes out heat from the cooling water R ′, absorbs it, and evaporates. Here, the latent heat of vaporization of the water W is relatively large at about 2400 kJ / kg when the temperature is 20 ° C., for example. For this reason, the cooling water R ′ can be cooled by the latent heat of evaporation of the water W. In addition, the water W supplied to the water absorbing member 20 is supplied from the water supply nozzle 31 so that the latent heat of evaporation necessary for cooling the cooling water R ′ is supplied from the water supply nozzle 31. Most of W can be evaporated. For this reason, the entrainment of water W can be prevented, and an increase in the consumption of water W supplied from the water supply unit 30 can be suppressed. Moreover, evaporation of the water W can be promoted by supplying the air A to the water W absorbed by the water absorbing member 20 by the gas supply unit 40. For this reason, the cooling water R ′ can be cooled to a lower temperature by using the latent heat of evaporation of the water W.

  FIG. 2 is a structural diagram showing the overall configuration of an evaporative cooler 50 in which a water absorbing member 20 ′ according to another embodiment of the present invention extends in the vertical direction. FIG. 3 is a structural diagram showing the overall configuration of an evaporative cooler 51 in which a water absorbing member 20 ′ according to another embodiment of the present invention is extended in the lateral direction. The evaporative coolers 50 and 51 shown in FIGS. 2 and 3 are devices for cooling the air A.

  As shown in FIGS. 2 and 3, these evaporative coolers 50 and 51 are disposed along the gas flow passage 52 for flowing the air A and the water flow passage 52 along the gas flow passage 52. The water absorption member 20 ′ having water, the water supply part 30 for supplying water to the water absorption member 20 ′, and the air A flowing into the water distribution member 52 ′ by flowing the air A through the gas flow passage 52. And a gas supply unit 40 that radiates and cools the air A by the latent heat of vaporization of the water W, and the water supply unit 30 generates water W that generates latent heat of vaporization for cooling the air A. 20 has a plurality of water supply ports 31a that can be supplied to the water.

  In the illustrated embodiment, the gas flow channel 52 is a channel through which air A for cooling flows, and is a channel that does not regulate the flow of air A at all. The gas flow channel 52 may be a channel regulated by a pipe or the like.

  Since water absorption member 20 ', water supply part 30, and gas supply part 40 are the same as that of the embodiment mentioned above, the same numerals are attached about the same mode portion, and explanation is omitted. The water absorbing member 20 ′ is installed in the gas flow path 52, and is installed so as to extend in the vertical direction in the case of FIG. 2, and is installed so as to extend in the horizontal direction in the case of FIG. ing. The water absorbing member 20 ′ is bent in a bellows shape so that it can easily come into contact with the air A. Further, in the water absorbing member 20 ′ shown in FIG. 2, a water supply nozzle 31 is disposed so as to supply the water W supplied from the water supply unit 30 to the upper end of the water absorbing member 20 ′. Further, in the water absorbing member 20 ′ shown in FIG. 3, the water supply nozzle is provided so that the water W supplied from the water supply unit 30 is supplied to the upper end portion of the water absorbing member 20 ′ that extends in the lateral direction and bends in a bellows shape. A plurality of reference numerals 31 are arranged at intervals in the horizontal direction.

  The fan 41 shown in FIG. 2 of the gas supply unit 40 is disposed at a position above the water absorption member 20, and the fan 41 shown in FIG. 3 of the gas supply unit 40 is from one end in the longitudinal direction of the water absorption member 20. Is also arranged in a lateral position.

  In the evaporative coolers 50 and 51 configured as described above, water W is supplied from the water supply unit 30 to the water absorbing member 20 ′ when the air A whose temperature has increased flows through the gas flow passage 52. Then, the water W absorbed by the water absorbing member 20 ′ takes out heat from the air A, absorbs it, and evaporates. For this reason, the air A can be cooled by the latent heat of vaporization of the water W. In addition, since the water W supplied to the water absorbing member 20 is supplied from the water supply port 31a to generate the latent heat of vaporization required for cooling the air A, most of the water W supplied to the water absorbing member 20 is supplied. Can be evaporated. For this reason, the entrainment of water W can be prevented, and an increase in the consumption of water W supplied from the water supply unit 30 can be suppressed. Further, since the water W absorbed by the water absorbing member 20 is located in the gas circulation channel 52, when the air A flows into the gas circulation channel 52 by the gas supply unit 40, the water W is promoted to evaporate. Can do. For this reason, the air A can be cooled to a lower temperature using the latent heat of vaporization of the water W. Moreover, since the gas supply part 40 contains the fan 41 and only the fan 41 is a power consumption source, the increase in power consumption can be suppressed.

  4 is an overall structural diagram of an evaporative cooler 60 according to an embodiment of the present invention for cooling the cooling water of the water-cooled condenser 55, and FIG. 5 is an evaporative cooler 60 shown in FIG. It is a cross-section figure of the cooling tower 56 which cools the cooling water of the water-cooled condenser 55 used as comparison object.

  As shown in FIG. 4, the fluid R to be cooled of the evaporative cooler 60 is the cooling water R ′ of the water-cooled condenser 55, and the fluid circulation pipe 10 is connected to the heat exchanger 57 of the water-cooled condenser 55. It is constituted so that it is the cooling pipe 11 through which the cooling water R ′ whose temperature has increased between.

  Here, the cooling tower 56 as a comparison target of the evaporative cooler 60 will be outlined. As shown in FIG. 5, the cooling tower 56 sprays the cooling water R ′ that has been heated through the heat exchanger 57 of the water-cooled condenser 55 from the upper side of the cooling tower 56 onto the surface of the filler 56 a. The outside air taken in by the blower 56b is applied to ', and a part thereof is evaporated, and the remaining cooling water R' is cooled using the latent heat of evaporation at the time of evaporation of this cooling water R '. The cooled cooling water R ′ is stored at the bottom of the cooling tower 56 and sent to the heat exchanger 57 of the water-cooled condenser 55 by the circulation pump 56 c.

  In the cooling tower 56, since the air in the cooling tower 56 passes through the filler 56a, the pressure loss increases, and the power consumption of the blower 56b increases. The cooling tower 56 uses a circulation pump 56c in addition to the blower 56b. For this reason, the power consumption of the cooling tower 56 further increases. Further, since the cooling water R ′ whose temperature has increased in the cooling tower 56 is sprayed from above in the cooling tower 56, the cooling water R ′ is entrained and the consumption of the cooling water R ′ increases.

  On the other hand, in the evaporative cooler 60 illustrated in FIG. 4, the water W is supplied from the water supply unit 30 to the water absorbing member 20 when the cooling water R ′ whose temperature has increased flows through the cooling pipe 11. Then, the water W absorbed by the water absorbing member 20 takes out heat from the cooling water R ′ whose temperature has risen, absorbs it, and evaporates. For this reason, it is possible to cool the cooling water R ′ whose temperature has been increased by the latent heat of vaporization of the water W. Further, the water W supplied to the water absorbing member 20 is supplied from the water supply port 31a as the water W that generates the latent heat of evaporation necessary for cooling the cooling water R ′. Most of it can be evaporated. For this reason, the entrainment of water W can be prevented, and an increase in the consumption of water W supplied from the water supply unit 30 can be suppressed. Moreover, evaporation of the water W can be promoted by supplying air to the water W absorbed by the water absorbing member 20 by the gas supply unit 40. For this reason, the cooling water R ′ can be cooled to a lower temperature by using the latent heat of evaporation of the water W. For this reason, the evaporative cooler 60 shown in FIG. 4 can be used as an alternative to the cooling tower 56 used as an accessory of the water-cooled condenser 55. Therefore, compared to the cooling tower 56, it is possible to suppress an increase in power consumption and consumption of the cooling water R ′.

  FIG. 6 is an overall structural diagram of an evaporative cooler 70 according to an embodiment of the present invention for cooling the refrigerant of the water-cooled condenser 55, and FIG. 7 is an illustration of the evaporative cooler 70 shown in FIG. It is a cross-section figure of the evaporative condenser 75 made into the comparison object.

  The fluid R to be cooled of the evaporative cooler 70 shown in FIG. 6 includes the refrigerant R ″ of the water-cooled condenser 55, and the fluid circulation pipe 10 is the refrigerant circulation pipe through which the refrigerant R ″ of the water-cooled condenser 55 flows. 12, the gas supply unit 40 supplies the air A to the water W absorbed by the water absorbing member 20 and supplies the refrigerant gas Rg ″ of the refrigerant R ″ flowing through the refrigerant flow pipe 12 by evaporation of the water W. It is configured to dissipate heat and condense.

  Here, the evaporative condenser 75 as a comparison object of the evaporative cooler 70 will be outlined. As shown in FIG. 7, the evaporative condenser 75 guides the refrigerant gas Rg ″ into the cooling pipe 76 and sprays water W on the outer surface of the cooling pipe 76. The water W evaporates by taking heat from the high-temperature refrigerant gas Rg ″ in the cooling pipe 76, and the refrigerant gas Rg ″ is condensed by taking heat. Further, outside air is introduced into the evaporative condenser 75 by the blower 75a to promote evaporation of the water W. Only a small amount of the water W sprayed on the cooling pipe 76 evaporates, and the water W that has not evaporated is stored in the lower part of the evaporative condenser 75, and is again recirculated by the circulation pump 77. The spraying is repeated on the cooling pipe 76.

  In contrast, in the evaporative cooler 70 shown in FIG. 6, when the refrigerant gas Rg ″ whose temperature has risen after cooling flows through the refrigerant flow pipe 12, water is supplied from the water supply unit 30 to the water absorbing member 20. When W is supplied, the water W absorbed by the water absorbing member 20 absorbs heat from the refrigerant gas Rg ″ whose temperature has increased and evaporates. For this reason, the refrigerant gas Rg ″ whose temperature has been increased by the latent heat of vaporization of the water W can be cooled and condensed. Further, the water W supplied to the water absorbing member 20 absorbs water because water W that generates latent heat of vaporization for cooling and condensing the refrigerant gas Rg ″ is supplied from the water supply port 31a of the water supply nozzle 31. It is possible to evaporate most of the water W supplied to the member 20. For this reason, the entrainment of water W can be prevented, and an increase in the consumption of water W supplied from the water supply unit 30 can be suppressed. Moreover, evaporation of the water W can be promoted by supplying the air A to the water W absorbed by the water absorbing member 20 by the gas supply unit 40. For this reason, the refrigerant gas Rg ″ can be more efficiently condensed using the latent heat of vaporization of the water W. Therefore, the evaporative cooler 70 shown in FIG. 6 can be used as an alternative to the evaporative condenser 75 that condenses the refrigerant gas Rg ″ of the evaporative condenser 65. Therefore, compared with the evaporative condenser 75, an increase in power consumption and water consumption can be suppressed.

  As mentioned above, although the preferable form of this invention was demonstrated, this invention is not limited to said form. For example, the above-described embodiments may be combined, and various modifications can be made without departing from the object of the present invention.

  FIG. 9 shows an overall structural diagram of a water supply unit 30 ′ according to another embodiment of the present invention. Water supply part 30 'demonstrates the part different from the water supply part 30 mentioned above, attaches | subjects the same code | symbol about the same aspect part as the water supply part 30, and abbreviate | omits description. As shown in FIG. 9, the water supply section 30 ′ includes a tank 33 that extends along the direction in which the fluid circulation pipe 10 extends to a position above the fluid circulation pipe 10 that extends in a substantially horizontal direction, and stores water W. And a plurality of water supply ports 31a arranged at intervals along the direction in which the fluid circulation pipe 10 extends. Each of the plurality of water supply ports 31 a can drop the water W dropped from the water supply port 31 a onto the water absorbing member 20 due to the gravity of the water W according to the liquid depth h of the water W stored in the tank 33. Arranged in position.

  In the illustrated embodiment, the water supply port 31 a is a hole 34 formed in the lower surface of the tank 33. The distance between the water supply port 31a and the water absorbing member 20 attached to the fluid circulation pipe 10 is larger than the water particles dripped from the water supply port 31a. For this reason, the water dripped from the water supply port 31a can be supplied to the water absorbing member 20 as a water droplet. Therefore, the water W that generates the latent heat of vaporization required for cooling the fluid R to be cooled can be supplied to the water absorbing member 20. For this reason, the to-be-cooled fluid R can be cooled effectively. Moreover, since the water supply port 31a is formed in the lower surface of the tank 33, the water supply nozzle 31 becomes unnecessary. For this reason, the structure of water supply part 30 'can be simplified more, and cost can be made cheap.

  FIG. 10A is a partial perspective view showing the overall configuration of an evaporative cooler according to another embodiment of the present invention, and FIG. 10B is a side view showing the overall configuration of the evaporative cooler. . The water supply unit 30 of the evaporative cooler 80 shown in FIGS. 10A and 10B includes an upper tank 81 that is disposed above the fluid circulation pipe 10 extending in a substantially horizontal direction and stores water W. A lower tank 82 that extends along the direction in which the fluid circulation pipe 10 extends to a position below the fluid circulation pipe 10 and is supplied with water W from the upper tank 81; A water supply member 83 connected to the absorbing member 20 and having the other end immersed in water W stored in the lower tank 82 and capable of supplying the water W in the lower tank 82 to the water absorbing member 20 by capillary action; It may be provided.

  In the illustrated embodiment, the upper tank 81 is formed in a bottomed container shape with the upper part opened. A discharge path 84 is connected to the bottom of the upper tank 81 so that the water W in the upper tank 81 can be discharged. The discharge path 84 extends downward from the upper tank 81 and communicates with the lower tank 82 at the tip. The lower tank 82 is formed in a bottomed container shape with an upper portion opened. The lower tank 82 is formed in a square shape in a side view, and a gap 85 between the opening 82a opened at the upper portion and the fluid circulation pipe 10 is substantially constant, and the fluid tank 10 extends along the direction in which the fluid circulation pipe 10 extends. It is extended.

  The water supply member 83 is formed in a plate shape having an upper end connected to the lower end of the water absorbing member 20 attached to the fluid circulation pipe 10 and extending downward. The water supply member 83 has a height B from the liquid level of the water W in the lower tank 82 to the connection position Ps where the water supply member 83 is connected to the water absorbing member 20. It is provided so that it may become constant along. In the illustrated embodiment, the capillary phenomenon causes water to move upward by the surface tension of water acting on the inner wall of the capillary (not shown). The moving distance is proportional to the surface tension and inversely proportional to the capillary radius. For this reason, if the height B of the water supply member 83 from the liquid level of the water W to the connection position Ps is smaller than the movement distance of the water due to the capillary phenomenon, the water absorption member 20 passes the water W through the water supply member 83. Can always be supplied.

  Further, the amount of water supplied to the water absorbing member 20 by capillary action varies depending on the number of capillaries. In the illustrated embodiment, for example, by adjusting the thickness t of the water supply member 83, the amount of water supplied to the water absorbing member 20 is changed to the water W that generates latent heat of evaporation necessary for cooling the fluid to be cooled. The minimum amount is necessary. For this reason, most of the water supplied to the water absorbing member 20 can be evaporated, entrainment of water W can be reliably prevented, and the consumption of water supplied from the water supply unit 30 can be further increased. Can be suppressed.

  In the above-described embodiment, air has been described as an example of the gas for promoting the evaporation of water. However, the gas is not limited to air, and may be carbon dioxide gas, nitrogen gas, or the like.

DESCRIPTION OF SYMBOLS 1, 50, 60, 70, 80 Evaporative cooler 10 Fluid flow path 11 Cooling pipe 12 Refrigerant flow path 20, 20 'Water absorption member 30 Water supply part 31 Water supply nozzle 31a Water supply port 31b Through-hole 33 Tank 34 Hole part 40 Gas Supply unit 41 Fan 41a Propeller 42 Motor 52 Gas flow path 55 Water-cooled condenser 56 Cooling tower 56a Filler 56b, 75a Blower 56c, 77 Circulating pump 57 Heat exchanger 65 Evaporative condenser 76 Cooling pipe 81 Upper tank 82 Lower tank 82a Opening 83 Water supply member 84 Discharge path 85 Clearance A Air B Height h Liquid depth Ps Connection position R Cooled fluid R 'Cooling water R''RefrigerantRg''Refrigerant gas t Thickness W Water

Claims (9)

A fluid distribution pipe for flowing a fluid to be cooled with heat conductivity;
A water absorbing member mounted so as to cover the outer surface of the fluid circulation pipe and having water content;
A water supply unit for supplying water to the water absorbing member;
A gas supply unit that supplies gas to the water absorbed by the water absorbing member and radiates and cools the cooled fluid in the fluid circulation pipe by the latent heat of vaporization of the water; and
The evaporative cooler characterized in that the water supply section has a plurality of water supply ports capable of supplying water that generates latent heat of evaporation necessary for cooling the fluid to be cooled to the water absorbing member. . A gas flow path for flowing gas;
A water absorbing member disposed along the gas flow path and having water content;
A water supply unit for supplying water to the water absorbing member;
A gas supply unit configured to supply the gas to the water absorbed by the water absorption member by flowing the gas in the gas flow path and to dissipate and cool the gas by the latent heat of evaporation of the water; and
The evaporative cooler characterized in that the water supply section has a plurality of water supply ports through which water that generates latent heat of evaporation necessary for cooling the gas can be supplied to the water absorbing member. The fluid to be cooled includes cooling water of a water-cooled condenser,
2. The evaporative cooler according to claim 1, wherein the fluid circulation pipe is configured to include a cooling pipe through which cooling water whose temperature has increased between the fluid circulation pipe and a heat exchanger of the water-cooled condenser. . The cooled fluid includes a refrigerant gas of an evaporative condenser,
The fluid circulation pipe includes a refrigerant circulation pipe through which the refrigerant gas of the evaporative condenser flows,
The gas supply unit is configured to supply the gas to the water absorbed by the water absorbing member and to dissipate and condense the refrigerant gas flowing in the refrigerant circulation pipe by evaporation of the water. The evaporative cooler according to claim 1. The water supply unit is disposed at a position above the fluid circulation pipe extending in a substantially horizontal direction and stores water, and a plurality of water supply units that communicate with the tank and form the water supply port at a lower end portion and extend in the vertical direction. Equipped with a water supply nozzle,
The plurality of water supply nozzles are disposed at intervals above the fluid circulation pipe extending in a substantially horizontal direction along the direction in which the fluid circulation pipe extends,
Each of the plurality of water supply nozzles is arranged at a position where water dripped from the water supply port of the water supply nozzle can drop onto the water absorbing member due to the gravity of water corresponding to the depth of water stored in the tank. The evaporative cooler according to claim 1, wherein the evaporative cooler is provided. The water supply section extends along a direction in which the fluid circulation pipe extends to a position above the fluid circulation pipe extending in a substantially horizontal direction, and opens to a lower surface of the tank to open the fluid circulation. A plurality of the water supply ports arranged at intervals along the direction in which the pipe extends, and
Each of the plurality of water supply ports is disposed at a position where water dropped from the water supply port by the gravity of water corresponding to the depth of water stored in the tank can be dropped onto the water absorbing member. The evaporative cooler according to any one of claims 1, 3, and 4. The amount of water dripped from the water supply port is set based on the depth of the water stored in the tank and the inner diameter of the water supply port. Evaporation according to any one of claims 1 to 6 Type cooler. The water supply unit is disposed at an upper position of the fluid circulation pipe extending in a substantially horizontal direction and stores water,
A lower tank that extends along a direction in which the fluid circulation pipe extends to a position below the fluid circulation pipe and is supplied with water from the upper tank;
It has water retention, one end is connected to the water absorbing member, and the other end is immersed in water stored in the lower tank, and water in the lower tank can be supplied to the water absorbing member by capillary action The evaporative cooler according to claim 1, further comprising: a water supply member. In the water supply member, a height from a level of water in the lower tank to a connection position where the water supply member is connected to the water absorbing member is constant along a direction in which the fluid circulation pipe extends. The evaporative cooler according to claim 8, wherein the evaporative cooler is provided.

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