CN211451938U

CN211451938U - Protective cover and cooling tower protective device

Info

Publication number: CN211451938U
Application number: CN201922019368.3U
Authority: CN
Inventors: 张小龙; 弓南; 孙发墩; 路敦才; 王雷
Original assignee: Wuhan Baishi Energy Saving Environmental Protection Co ltd; China Mobile Communications Group Co Ltd; China Mobile Group Gansu Co Ltd
Current assignee: Wuhan Baishi Energy Saving Environmental Protection Co ltd; China Mobile Communications Group Co Ltd; China Mobile Group Gansu Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-08
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a protection casing and cooling tower protector relates to machinery to the messenger sets up the better performance of indirect heating equipment under the outdoor environment and acts on. The protective cover comprises a cover body, a first group of electric air doors with at least one electric air door, a controller for controlling the opening and closing of at least one electric air door in the first group of electric air doors and a first temperature sensor; wherein each of the first set of electrically operated dampers is disposed in a wall of the housing, the controller is coupled to each of the first set of electrically operated dampers, and the controller is coupled to the temperature sensor. The utility model is used for equipment protection.

Description

Protective cover and cooling tower protective device

Technical Field

The application relates to the field of machinery, especially, relate to a protection casing and cooling tower protector.

Background

Currently, many heat exchange devices, such as cooling towers and the like, are often placed in outdoor environments. However, equipment that is placed in an outdoor environment often fails to function well due to the effects of various factors.

Taking a cooling tower as an example, the cooling tower is a device for dissipating waste heat generated in an industrial or refrigeration air conditioner by evaporation using contact of water and air. When the outdoor natural cold is sufficient in winter, the outdoor natural cold is usually utilized to carry out heat exchange of the cooling tower so as to meet the refrigeration requirement.

However, the temperature in northern areas of China is low in winter, and the cooling tower is easy to freeze when outdoor natural cold is used for heat exchange of the cooling tower, so that fillers in the cooling tower are damaged or the fluidity of cooling water is reduced, and the safe operation of the cooling tower is seriously influenced.

Accordingly, there is a need to provide a device that allows equipment disposed in an outdoor environment to function better.

Disclosure of Invention

An object of the utility model is to provide a protection casing to the equipment that makes to set up under outdoor environment plays the effect better.

In order to achieve the above object, the present invention provides the following technical solutions:

in one aspect, a protective cover is provided, which includes a cover body, a first group of electric dampers having at least one electric damper, a controller for controlling the opening and closing of at least one electric damper in the first group of electric dampers, and a first temperature sensor; wherein each of the first set of electrically operated dampers is disposed in a wall of the housing, the controller is coupled to each of the first set of electrically operated dampers, and the controller is coupled to the temperature sensor.

Optionally, in an embodiment, the first temperature sensor is a cover external temperature sensor or a cover internal temperature sensor.

Optionally, in an embodiment, the protective cover further comprises a second temperature sensor, and the second temperature sensor is a cover external temperature sensor or a cover internal temperature sensor.

In the embodiment of the present application, the cover external temperature sensor is provided outside the wall of the cover, or in the wall of the cover and has a portion exposed to the outside of the wall; the cover internal temperature sensor is provided inside a wall of the cover, or in the wall of the cover and has a portion exposed from the inside of the wall;

optionally, in an embodiment, the material of the cover body includes a heat insulating material and/or a glass fiber reinforced plastic material.

Optionally, in one embodiment, the protective cover further comprises a second set of at least one motorized damper, each motorized damper of the second set of motorized dampers being embedded in a wall of the cover, the controller being coupled to each motorized damper of the second set of motorized dampers;

the cover is formed of a first portion and a second portion cut by a cross-sectional line, the first portion being disposed on the second portion, the first set of electrically operated dampers being disposed in a wall of the first portion, the second set of electrically operated dampers being disposed in a wall of the second portion.

Optionally, in one embodiment, the enclosure is provided on a support surface, the enclosure having a target wall opposite and remote from the support surface, the target wall being provided with an opening, the target wall having a serpentine or planar configuration.

Optionally, in one embodiment, the target wall has a third portion and a fourth portion, the third portion including a first face and a second face perpendicular to the first face; the fourth portion includes a fourth face and a fifth face perpendicular to the fourth face; the first face and the fourth face are flush, and the second face is parallel to the fifth face; at least one electrically powered damper of the first set of electrically powered dampers is disposed in the second face or the fifth face.

Optionally, in an embodiment, the third portion further has a third face perpendicular to the second face, and the first face, the second face, and the third face form a stepped configuration; the fourth portion further has a sixth surface perpendicular to the fifth surface, and the fourth surface, the fifth surface, and the sixth surface form a stepped configuration.

Optionally, in one embodiment, the third portion and the fourth portion are symmetrical with respect to the opening; at least one electrically powered damper of the first set of electrically powered dampers is disposed in the first face or the fourth face.

In another aspect, there is provided a cooling tower guard comprising a cooling tower body and a protective cover as described in any one of the above, wherein the protective cover is arranged to surround the cooling tower body.

Optionally, in an embodiment, the cooling tower body has an air inlet, and the cooling tower guard further includes a third temperature sensor disposed at the air inlet.

Optionally, in an embodiment, the cooling tower body has an air outlet, and the cooling tower protection device further includes a fourth temperature sensor disposed at the air outlet.

Optionally, in an embodiment, the protective hood has an opening, the shape and size of the opening match the shape and size of the air outlet, and the protective hood is connected to the neck of the cooling tower body.

The utility model provides a protective cover and a cooling tower protective device, wherein a first group of electric air doors, a controller and a first temperature sensor are arranged on a cover body, and the controller is coupled with each electric air door and the temperature sensor in the first group of electric air doors; the controller can control the switching of each electronic air door according to the temperature that temperature sensor detected, can introduce the protection casing inside with the gas of the outside different temperatures of protection casing, and at this moment, the protection casing is equivalent to and provides the cavity that a different temperature air mixes, and then introduces the gas of the inside different temperatures of protection casing from the protection casing outside and can fully mix in the protection casing, obtains the gas that has target temperature. In this way, objects protected by the protective cover, such as heat exchange equipment, can better function with the resulting target temperature gas.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it.

Fig. 1 is a schematic structural view of a protective cover of the present invention;

FIGS. 2a-2b are schematic structural views of another protective cover of the present invention;

FIGS. 3a-3b are schematic structural views of another protective cover according to the present invention;

fig. 4 is a schematic structural view of another protective cover of the present invention;

FIGS. 5a-5b are schematic structural views of a cooling tower guard according to the present invention;

FIG. 6 is a schematic view of the operation principle of the cooling tower of the present invention;

FIG. 7a is a schematic view of another cooling tower guard according to the present invention;

FIG. 7b is a schematic view of another cooling tower guard according to the present invention;

FIGS. 8a-8b are schematic views of another cooling tower guard of the present invention;

fig. 9 is a schematic structural view of another cooling tower protection device according to the present invention.

Description of reference numerals:

10. 20, 40-a cover body; 11. 41-first set of electrically operated dampers; 14. 44-second set of electrically operated dampers; 12-a controller; 13. 1301, 1302, 2301, 2302, 2303 — a temperature sensor; 1301. 1302 — a temperature sensor in a first temperature sensor; 80-a support surface; 1001 — target wall; 1002. 2002-an opening; 1003-; 1101-; 1401. 1402-electric air door in the second group of electric air doors; 30-cooling tower body; 31-tower neck; 32-air inlet; 33-a fan; 34-a water inlet pipe; 35-a filler; 36-a water collecting tank; 25-channel.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, the present embodiment provides a protective cover, which includes a cover 10, a first set of motorized dampers 11 having at least one motorized damper, a controller 12 for controlling opening and closing of at least one motorized damper in the first set of motorized dampers 11, and a first temperature sensor 13, wherein each motorized damper in the first set of motorized dampers 11 is embedded in a wall of the cover 10, the controller is coupled to each motorized damper in the first set of motorized dampers 11, and the controller 12 is coupled to the first temperature sensor 13.

The enclosure 10 is disposed on a support surface 80 (e.g., the ground or the surface of an object, etc.), and the enclosure 10 has a target wall 1001 opposite and distal from the support surface, the target wall 1001 having a serpentine or planar configuration. For example, as shown in FIGS. 2a-2b, the target wall 1001 has a planar form. It will be understood that the shape of the shield 10 can be designed according to the actual situation, such as matching the shape of the target object to be protected, or according to the function of the shield, etc., without limitation.

For example, in one embodiment, the target wall 1001 of the shield 10 is provided with an opening 1002, as shown in FIGS. 2a-2 b.

In another embodiment, as shown in fig. 3a and 3b, the target wall 1001 has a third portion and a fourth portion, the third portion including a first face 1003 and a second face 1004 perpendicular to the first face 1003; the fourth portion includes a fourth face 1005 and a fifth face 1006 perpendicular to the fourth face, the first face 1003 and the fourth face 1005 being flush, and the second face 1004 being parallel to the fifth face 1006. In another embodiment, the third portion may further have a third face 1007, the third face 1007 may be perpendicular to the second face 1004, the first face 1003, the second face 1004, and the third face 1007 form a step shape, the fourth portion further has a sixth face 1008, the sixth face 1008 is perpendicular to the fifth face 1006, and the fourth face 1005, the fifth face 1006, and the sixth face 1008 form a step shape. The third surface 1007 may be parallel or flush with the sixth surface 1008, and the stepped configuration may be, for example, a concave shape or a convex shape.

It is understood that the position of the opening 1002 on the target wall 1001 of the cover 10 may be set arbitrarily, and may be set to match with each surface of the target wall 1001 as long as the actual application scenario is satisfied. For example, third face 1007 in destination wall 1001 may be spaced apart from sixth face 1008 by opening 1002.

Moreover, the material of the cover 10 may include a heat insulation material and/or a glass fiber reinforced plastic material. The shield 10 may be made of glass fiber reinforced plastic in order to increase the hardness, mechanical strength, corrosion resistance, and cost of the shield 10. In order to enhance the heat preservation effect of the cover 10, the cover 10 may be made of a material having a heat preservation effect. It can be understood that the material of the cover 10 is not limited to the material mentioned in the embodiment of the present application, and in practical applications, the material of the cover 10 may be set according to actual requirements, for example, the material of the cover 10 may be a material with good hardness, mechanical strength, corrosion resistance and thermal insulation performance, the cover 10 may also be composed of two parts, the outer side is a material with good hardness, mechanical strength and corrosion resistance, and the inner side is a material with good thermal insulation performance, so as to jointly form the cover 10.

The first set of motorized dampers 11 can be used, for example, to draw air from outside the enclosure 10 into the enclosure 10. The first set of electrically powered dampers 11 comprises at least one electrically powered damper as shown in fig. 1. It can be understood that, the connection mode of the electric air door and the cover body can be adaptively set according to the materials of the electric air door and the cover body, as long as the purpose that the electric air door is embedded into the wall of the cover body can be realized, for example, adhesion, welding and the like, and the connection mode of the electric air door and the cover body is not limited here. In addition, it should be noted that the number of the electric dampers included in the first set of electric dampers 11 in the embodiment of the present application, and the arrangement positions of the electric dampers on the cover 10, only represent one implementation, and do not represent all embodiments. In fact, the number of the motorized dampers included in the first set of motorized dampers 11 and the arrangement position on the housing 10 can be adaptively adjusted according to the actual application, for example, as shown in fig. 1, the first set of motorized dampers 11 includes 2

motorized dampers

1101 and 1102, and the

motorized dampers

1101 and 1102 are arranged in the wall of the upper portion of the housing 10.

In one embodiment, the shield also includes a second set of electrically operated dampers 14 having at least one electrically operated damper, each electrically operated damper of the second set of electrically operated dampers 14 being embedded in a wall of the enclosure 10, the enclosure 10 being formed from a first portion and a second portion cut in cross-section, the first portion being located above the second portion, the first set of electrically operated dampers 11 being disposed in the wall of the first portion, and the second set of electrically operated dampers being disposed in the wall of the second portion. For example, as shown in fig. 4, enclosure 10 is cut by section line C-C to form a first portion (upper portion) and a second portion (lower portion), first set of motorized dampers 11 comprises

motorized dampers

1101 and 1102, and

motorized dampers

1101 and 1102 are embedded in the walls of the upper portion of enclosure 10; the second set of electrically operated dampers 14 includes electrically operated

dampers

1401 and 1402, and the electrically operated

dampers

1401 and 1402 are embedded in the wall of the lower portion of the enclosure 10.

Of course, the position of the electric damper may be set in accordance with the position of the opening in the cover body and the specific form of the target wall. In one embodiment, at least one of the first set of electrically powered dampers 11 is disposed in either the second face 1004 or the fifth face 1006. In another embodiment, the second face 1004 and the fifth face 1006 are symmetrical with respect to the opening 1002, and the first set of electrically operated dampers 11 includes at least two electrically operated dampers, which are symmetrically disposed in the second face 1004 and the fifth face 1006, respectively. For example, the first set of electrically powered dampers includes electrically powered damper 1101 and electrically powered damper 1102, and electrically powered damper 1101 and electrically powered damper 1102 are symmetrically disposed in second face 1004 and fifth face 1006, respectively. In another embodiment, the third and fourth portions of the target wall 1001 are symmetrical with respect to the opening 1002, and at least one of the motorized dampers of the first set 11 is disposed in either the first face 1003 or the fourth face 1005.

In the embodiment of the present application, the first temperature sensor 13 may be a temperature sensor outside the enclosure 10 or a temperature sensor inside the enclosure 10; wherein, the temperature sensor outside the cover 10 is arranged outside the wall of the cover 10, or arranged in the wall of the cover and has a part exposed to the outside of the wall of the cover 10; the internal temperature sensor of the cover 10 is provided inside the wall of the cover 10, or is provided in the wall of the cover 10 and has a portion exposed from the inside of the wall of the cover 10. For example, as shown in fig. 1, the first temperature sensor 13 is a temperature sensor 1301 outside the enclosure 10, and the temperature sensor 1301 is disposed outside the wall of the enclosure 10; alternatively, the first temperature sensor is the internal temperature sensor 1302 of the cover 10, and the temperature sensor 1302 is provided inside the cover wall (the temperature sensor 1302 in the dashed line frame is a temperature sensor provided inside the cover 10 wall).

In one embodiment, the shield may further comprise a second temperature sensor, which is either an external temperature sensor of the enclosure 10 or an internal temperature sensor of the enclosure; wherein, the temperature sensor outside the cover 10 is disposed outside the wall of the cover 10, or disposed in the wall of the cover 10 and has a portion exposed to the outside of the wall; the temperature sensor inside the enclosure 10 is disposed inside the wall of the enclosure 10, or in the wall of the enclosure 10 and has a portion exposed from the inside of the wall, and the position where the second temperature sensor is disposed may refer to the position where the first temperature sensor 13 is disposed in fig. 1.

In one embodiment, the first temperature sensor and the second temperature sensor are arranged at positions corresponding to: at least one of the first temperature sensor and the second temperature sensor is a temperature sensor inside the cover body, and the other one is a temperature sensor outside the cover body. It can be understood that, the number of the first temperature sensor and the second temperature sensor is not unique, and the first temperature sensor and the second temperature sensor can be set according to actual conditions, for example, in order to accurately obtain the temperature inside and outside the cover body, a plurality of temperature sensors can be respectively set inside and outside the cover body, for example, 3 temperature sensors are set inside the cover body, 3 temperature sensors are also set outside the cover body, the temperature inside the cover body is obtained by averaging the temperatures detected by the 3 temperature sensors inside the cover body, and the obtaining of the temperature outside the cover body is the same.

The controller 12 may comprise at least one controller, and the controller 12 is coupled to each temperature sensor and each electrically operated damper for controlling the opening and closing of each electrically operated damper according to the temperature detected by each temperature sensor. In one embodiment, the controller 12 corresponds to each of the electrically operated dampers: the controller 12 includes two controllers for controlling the first set of electrically operated dampers and the second set of electrically operated dampers, respectively. In another embodiment, the controller 12 corresponds to each of the electrically operated dampers: the controller 12 includes the same number of controllers as all of the electric dampers, and one controller controls one electric damper correspondingly. Of course, the corresponding relationship between the controller 12 and each of the electric dampers may be that one controller controls a part of the electric dampers (for example, one or two electric dampers), and the corresponding relationship between the controller 12 and each of the electric dampers may be adjusted according to actual needs.

In one embodiment, the controller 12 may be integrated with a temperature sensor, disposed outside of the wall of the enclosure 10. For example, the controller 12 and the external temperature sensor 1301 are integrated and disposed outside the wall of the enclosure 10, as shown in fig. 1.

By adopting the technical scheme, the cover body plays a certain protection role on a protected target object (such as a cooling tower, an air conditioner and other heat exchange equipment), through the arrangement of each electric air door, the controller and the temperature sensor, the controller controls the opening and closing of each electric air door according to the temperature detected by the temperature sensor, and air with different temperatures outside the cover body can be introduced into the cover body (for example, the electric air door 1101 in the first group of electric air doors 11 is used for introducing air with higher temperature, and the electric air door 1102 in the first group of electric air doors 11 is used for introducing air with lower temperature).

As shown in fig. 5a-5b, the embodiment of the present application further provides a cooling tower protection device, which includes a protection cover 20 and a cooling tower body 30, where the cooling tower body 30 includes a tower neck 31, an exhaust outlet and a fan 33 at the exhaust outlet for exhausting hot gas, the cooling tower body 30 further includes an air inlet 32 at a lower portion of the cooling tower body 30, the protection cover 20 is disposed at an outer side of the cooling tower body 30 and can surround the cooling tower body 30 (see, for example, fig. 5b), the protection cover 20 has an opening, a shape and a size of the opening match a shape and a size of the exhaust outlet, and the protection cover 20 is connected to the tower neck 31.

A cooling tower is a device for dissipating waste heat generated in an industrial or refrigeration air conditioner by evaporation using contact of water and air. The working principle is (as shown in fig. 6): the hot water absorbed waste heat enters the cooling tower body 30 through the water inlet pipe 34 and is sprayed to the filler 35, heat exchange action is generated between the hot water and cold air entering the cooling tower from the air inlet of the cooling tower, a part of the hot water in the filler is evaporated and is driven by the fan 33 to be discharged out of the cooling tower through the air outlet of the cooling tower, and the other part of the hot water in the filler is cooled after heat exchange with the cold air entering the cooling tower and falls into the water collecting tank 36 of the cooling tower. Generally, the lower the temperature of the cold air entering the cooling tower from the air inlet of the cooling tower, the better the heat exchange effect in the cooling tower, and the better the cooling effect of the cooling tower. Therefore, when the outdoor natural cooling capacity is sufficient in winter, the outdoor natural cooling capacity is generally utilized to carry out heat exchange of the cooling tower so as to meet the refrigeration requirement. However, the temperature in northern areas of China is low in winter, and the cooling tower is easy to freeze when outdoor natural cold is used for heat exchange of the cooling tower, so that fillers in the cooling tower are damaged or the fluidity of cooling water is reduced, and the safe operation of the cooling tower is seriously influenced.

And the cooling tower protection casing that provides in this application embodiment can provide the mechanical protection of certain degree for the cooling tower on the one hand, and on the other hand can also avoid the condition that the cooling tower that appears when utilizing outdoor natural cold volume to carry out the cooling tower heat transfer freezes, can utilize the cooling tower protection casing in this application embodiment to detach the ice in the cooling tower after the cooling tower freezes even, and then guarantee the cooling tower safe and effective operation.

The operation process of cooling tower protection casing in the embodiment of this application does: the controller controls the opening and closing of each electric air door when the temperature detected by the temperature sensor meets a certain preset condition according to the temperature detected by the temperature sensor, for example, when the temperatures detected by the temperature sensor inside the cover body and the temperature detected by the temperature sensor outside the cover body are respectively lower than the respective preset temperature values, the controller can control the electric air doors to be opened, so that hot gas exhausted from the fan enters the cover body through the electric air doors and enters the cooling tower body through the air inlets. Wherein, the principle that hot gas discharged from the fan enters the cover body through the electric air door is as follows: before the cover body is not arranged for the cooling tower, cold air in an external environment is pumped into the cooling tower body from an air inlet of the cooling tower body under the power of a fan; after setting up above-mentioned cover body for the cooling tower, when opening the electronic air door that sets up in the cover body wall, be equivalent to with the passageway of external environment by the cooling tower income wind gap before become present electronic air door of opening, under the power of fan, cover the outside air of body from electronic air door by the suction cover internal, and then get into the cooling tower body from the cooling tower income wind gap.

In one embodiment, in order to enable rapid absorption of the hot gases exiting the fan 33, the enclosure 20 is cut in cross-section, the enclosure 20 being cut into a first portion (upper portion) and a second portion (lower portion), the first portion being disposed on the second portion, and a first set of electrically operated dampers being disposed in the wall of the first portion. For example, the motorized damper 2101 may be disposed in a wall of the upper portion of the enclosure 20, preferably, the motorized damper 2101 is disposed in a wall of the upper portion of the enclosure 10 at a position closer to the fan 33, as shown in FIG. 7 a.

In one embodiment, to quickly and more absorb the hot air discharged from the fan 33, a motorized damper 2102 may be further provided at a position symmetrical to the motorized damper 2101, as shown in fig. 7 b. It will be understood that in practical applications, the number and the arrangement position of the electric dampers can be adjusted according to practical situations, as long as the purpose of rapidly and more absorbing the heat exchange gas exhausted from the fan 33 can be achieved.

In practical applications, the shape of the cover 20 may also be adapted in order to absorb the heat exchange gas exhausted from the fan 33 as soon as possible, as shown in fig. 8a-8b, the target wall of the cover 20 has a third portion and a fourth portion, the third portion includes a first face 2003 and a second face 2004 perpendicular to the first face 2003; the fourth portion includes a fourth face 2005 and a fifth face 2006 perpendicular to the fourth face 2005, the first face 2003 and the fourth face 2005 being flush, the second face 2004 being parallel to the fifth face 2006; the third section also has a third face 2007, the third face 2007 is perpendicular to the second face 2004, the first face 2003, the second face 2004 and the third face 2007 form a stepped configuration, the fourth section also has a sixth face 2008, the sixth face 2008 is perpendicular to the fifth face 2006, the fourth face 2005, the fifth face 2006 and the sixth face 2008 form a stepped configuration, and the third face 2007 and the sixth face 2008 in the target wall are flush and seamlessly connected to form a plane on which the opening 2002 is disposed, and the opening 2002 is connected to the tower neck 31. A first set of motorized dampers is provided on the side of the enclosure 20 adjacent the fan 33, for example, motorized damper 2101 is provided in the second face 2004 on the target wall, and motorized damper 2102 is provided in the fifth face 2006 on the target wall, such that when the controller opens the

motorized dampers

2101 and 2102, hot gas enters the enclosure 20 from both sides of the enclosure 20 via the

motorized dampers

2101 and 2102. At this time, when the fan 22 discharges the heat-exchanged gas, the electrically operated dampers provided in the second and

fifth faces

2004 and 2006 of the cover 20 can suck the discharged hot gas in time. Also, since the target wall of the cover body 20 has the above-described first to sixth faces and the above-described arrangement positions of the openings, the hot exhaust gas is discharged along the passages 25 formed by the first to sixth faces and the openings, rather than being diffused in all directions after being discharged from the fan 33, and the electrically operated dampers arranged in the second face 2004 and the fifth face 2006 absorb the hot exhaust gas as much as possible in time. Of course, the electrically operated dampers may be provided on the first surface and the fourth surface of the target wall, or on the side of the cover body away from the fan, but in order to improve the efficiency of absorbing the hot gas, the electrically operated dampers are provided on the second surface and the fifth surface of the target wall, and contribute to absorbing the heat exchange gas.

In practical application, under the condition that the icing of the cooling tower needs to be prevented, if only hot gas is absorbed, the hot gas is directly introduced into the cooling tower due to the higher temperature of the hot gas, so that the icing prevention effect can be well achieved. However, in another aspect, the hot gas is directly introduced into the tower body of the cooling tower, and the temperature difference between the hot gas entering the tower body and the hot water in the filler is small due to the high temperature of the hot gas, so that effective heat exchange cannot be performed, and the cooling effect of the cooling tower is poor. Therefore, it is necessary to introduce gas having a relatively suitable temperature into the tower body to achieve the purpose of preventing the cooling tower from freezing and not affecting the cooling effect of the cooling tower.

In order to solve the above problem, an electric damper may be further provided in the first face and the fourth face of the target wall of the cover body 20, and in the face opposite to the second face and the face opposite to the fifth face. As shown in fig. 8b, an electric damper 2103 is provided on the first surface, an electric damper 2104 is provided on the fourth surface, an electric damper 2105 is provided on the surface opposite to the second surface, and an electric damper 2106 is provided on the surface opposite to the fifth surface. When the controller controls the electric damper 2101 and the electric damper 2102 to be opened, the controller may also control the

electric dampers

2103, 2104, 2105 and/or 2106 to be opened, so that the hot air is introduced through the electric damper 2101 and the electric damper 2102, and at the same time, the cold air is introduced to some extent through the

electric dampers

2103, 2104, 2105 and/or 2106. The hot gas and the cold air introduced into the enclosure 20 are mixed in the enclosure 20, and the mixed gas is introduced into the cooling tower body 30 through the inlet 32. Hot gas and cold air are introduced into the cover body 20, the cold air is fully preheated by the hot air in the cover body 20, the mixed gas reaches a proper temperature, the gas with the proper temperature is introduced into the cooling tower body 30, and the cooling effect of the cooling tower is not influenced while the cooling tower is prevented from freezing. Further, in order to obtain a mixed gas with a more suitable temperature, a temperature sensor 2301 may be disposed in the environment outside the housing 20, a temperature sensor 2302 is disposed at the cooling tower air inlet 32 inside the housing 20, and a temperature sensor 2303 is disposed at the fan 33, the controller may adjust the opening and closing of each of the first set of electrically operated dampers according to the temperature in the environment outside the housing 20 detected by the temperature sensor 2301, the temperature of the air in the air inlet 32 detected by the temperature sensor 2302, and the temperature of the hot gas detected by the temperature sensor 2303 at the fan 33, so as to adjust the intake amount of the hot gas and the cold air, thereby achieving the effect of adjusting the temperature of the mixed gas. For example, when the temperature of the air in the air inlet 32 detected by the temperature sensor 2302 is lower than a first preset temperature (which results in that a better anti-freezing effect of the cooling tower cannot be achieved), and meanwhile, the temperature in the environment outside the enclosure 20 detected by the temperature sensor 2301 is lower than a second preset temperature, at this time, the temperature of the mixed air in the enclosure 20 needs to be raised, the electric dampers in the first set of electric dampers can be adjusted to be opened and closed by the controller, so that the introduction amount of the hot air is increased, the introduction amount of the cold air outside is reduced, for example, the controller controls the

electric dampers

2101 and 2102 to be opened, the

electric dampers

2103 and 2104 to be opened, and the

electric dampers

2105 and 2106 to be closed. When the temperature of the air in the air inlet 32 detected by the temperature sensor 2302 is lower than a third preset temperature (the third preset temperature is lower than the first preset temperature) and the temperature in the environment outside the enclosure 20 detected by the temperature sensor 2301 is lower than a fourth preset temperature (the fourth preset temperature is lower than the second preset temperature), the freezing of the cooling tower can be prevented by only opening the

electric dampers

2101 and 2102 to introduce the heat exchange air. When the temperature of the gas in the air inlet 32 detected by the temperature sensor 2302 is higher than the first preset temperature, and the temperature of the hot gas at the fan 33 detected by the temperature sensor 2303 is higher than the fifth preset temperature (which results in that the cooling tower cannot achieve a good cooling effect), at this time, the temperature of the mixed gas in the enclosure 20 needs to be reduced, and the introduction amount of the cold air can be increased adaptively, or the introduction amount of the hot gas is reduced while the introduction amount of the cold air is increased, so that the gas in the enclosure 20 reaches a more appropriate temperature after being mixed. For example, at the same time that the

motorized dampers

2101 and 2102 are opened, the

motorized damper

2103 and 2106 are opened, or the opening of one motorized damper 2102 is reduced, or the like. It can be understood that, in practical application, the controller can freely control the opening and closing of the

electric air door

2101 and 2106 according to the temperatures detected by the

temperature sensors

2301, 2302 and 2303, so as to adjust the temperature of the mixed gas in the cover body 20, so that the temperature of the mixed gas entering the cooling tower through the air inlet 32 reaches an appropriate temperature which can enable the cooling tower to achieve both the anti-freezing effect and the better cooling effect.

The cooling tower protective cover can achieve the anti-icing effect, and can be used for removing ice in the cooling tower after the cooling tower is iced. In practical application, some detection devices can be arranged in the cooling tower for judging whether the cooling tower is frozen or not, and the controller, the detection devices and the electric air door can be linked according to the condition in the cooling tower. For example, when the cooling tower is determined to be frozen by the detection device inside the cooling tower, the protective cover in the embodiment of the present application needs to perform the function of melting ice. The controller can control only to open the electric air door close to the fan in the first group of electric air doors, introduce more hot gas into the cover body, and then directly introduce the hot gas into the cooling tower body through the air inlet so as to rapidly melt ice in the cooling tower.

In conclusion, the cooling tower protective cover has two working conditions while playing a certain protective role on the cooling tower, wherein one working condition is an anti-icing working condition, and the other working condition is an ice-melting working condition. It can be understood that the selection and switching of the above-mentioned operating conditions can be performed according to actual requirements.

In one embodiment, the temperature sensor obtains the temperature, the controller determines whether the temperature meets a preset condition, and if the temperature meets the preset condition, the controller controls the opening and closing of each electric air door in the first group of electric air door groups, wherein the temperature condition can be adaptively set according to actual conditions. For example, when cooling of a cooling tower using outdoor natural cold starts in winter, after the cooling tower is turned on, Tin (temperature at the inlet of the cooling tower) and the duration TIME1 of the temperature are monitored in real TIME, and the outside temperature Tw of the housing and the duration TIME2 of the temperature are monitored in real TIME, and when Tw <0 ℃ (adjustable) and TIME2>15 minutes (adjustable) and when Tin <0 ℃ (adjustable) and TIME1>15 minutes (adjustable), an anti-icing condition is entered. At this time, the controller controls to open all the electric air doors in the first group of electric air doors, for example, the

electric air doors

2101 and 2106 are opened, and then the opening and closing of each electric air door are adjusted in real time according to the real-time detected temperature in the external environment of the cover body, the temperature of the gas at the air inlet of the cooling tower and the temperature of the hot gas at the fan of the cooling tower.

In one embodiment, the detection device in the cooling tower detects the ice in the cooling tower, the controller controls to open the electric air door close to the fan in the first group of electric air doors, and the temperature sensor acquires the temperature after the ice in the cooling tower melts; the controller adjusts the opening and closing of the electrically powered dampers in the first set of electrically powered dampers based on the temperature. For example, when the cooling tower is determined to be frozen by the detection device inside the cooling tower, the controller may control to open only the motorized damper 2101 and the motorized damper 2102 close to the fan in the first set of motorized dampers, so as to introduce more hot gas into the enclosure, and then introduce the hot gas directly into the tower body of the cooling tower through the air inlet, so as to rapidly melt the frozen ice in the cooling tower. After ice in the cooling tower is melted, the temperature of the mixed gas in the cover body needs to be reduced so as not to influence the cooling effect of the cooling tower, at the moment, on the basis of opening the electric air door 2101 and the electric air door 2102, the

electric air doors

2103, 2104, 2105 and/or 2106 are/is opened to increase the introduction amount of cold air, and then the temperature of the mixed gas in the cover body is reduced, so that the temperature of the gas at the air inlet reaches the proper temperature; it is also possible to close the electrically operated damper, e.g. electrically operated damper 2102, partly close to the fan, while opening electrically operated

dampers

2103, 2104, 2105 and/or 2106 (see arrangement of figure 8 b).

By adopting the technical scheme, the cover body can play a certain mechanical protection role on the cooling tower, and has simple and convenient installation and lower manufacturing cost. Meanwhile, because the hot gas and the cold air enter the cover body from the upper part of the cover body, the cover body is equivalent to a closed space for mixing the hot gas and the cold air between the cover body and the tower wall on the outer side of the cooling tower, and in the cover body, enough space and path are provided from the upper part of the cover body to the air inlet of the cooling tower, so that the hot gas can fully preheat the cold air, and the external cold air is directly introduced into the cooling tower body from the air inlet, so that the temperature of the gas entering the cooling tower body through the air inlet is improved. And cold air enters from the upper part of the cover body and enters the cooling tower through the air inlet after being preheated, so that the phenomenon that when external cold air is directly introduced into the tower body of the cooling tower from the air inlet, the external cold air directly blows cooling water in the water collecting tank of the cooling tower to cause the freezing of the cooling water, and the operation failure of the cooling tower is avoided. In addition, the design of the cover body does not occupy the space of the cooling tower, and the maintenance of the cooling tower can be normally carried out in the cover body. The design of electric air door can reduce the windage, under the area of fan power leads, can introduce the exhaust hot gas of cooling tower fast, and abundant reuse cooling tower exhaust heat has avoided setting up other heating device and has preheated the gas in cooling tower income wind gap, has also practiced thrift the cost when having practiced thrift the energy. Through the synergistic effect of a plurality of electric air doors for under the ice-melt operating mode, can detach the ice in the cooling tower fast, under the anti-icing operating mode, can make the temperature of cooling tower income wind gap gas reach and can prevent the cooling tower and freeze and can make the cooling tower effectively carry out refrigerated temperature again.

In order to strengthen the practicability of the cover body, the utility model is not only used in winter, but also the trouble of disassembling the cover body in summer is avoided. The lower part of the cover body can be also provided with an electric air door group, and in summer, when heat exchange gas does not need to be introduced, only the lower electric air door group is opened.

In the embodiment of the present application, the protective cover further comprises a second group of electrically operated dampers 44 having at least one electrically operated damper, each of the electrically operated dampers of the second group being embedded in a wall of the cover 40, the cover 40 being constituted by a first portion (upper portion) and a second portion (upper portion) cut out by a cut line, the first portion being provided on the second portion, the first group of electrically operated dampers 41 being provided in the wall of the first portion, and the second group of electrically operated dampers 44 being provided in the wall of the second portion. In practical application, the number of the electric air doors in the second group of the electric air doors at the lower part of the cover body can be set and adjusted according to actual requirements.

In the present embodiment, the second set of electrically operated dampers 44 comprises four electrically operated dampers that are enclosed end to form the lower portion of the housing, as shown in fig. 9.

In winter, when the temperature is low, the first group of electric dampers on the upper part of the cover body 40 is opened, and the second group of electric dampers 44 on the lower part of the cover body 40 is closed. Cold air and hot gas enter the cover body from the upper part of the cover body 40, and the cold air enters the cooling tower after being fully preheated, so that the ice prevention or ice removal effect is achieved. When the cooling tower is normally used in summer or transition seasons, the second group of electric air doors 44 at the lower part of the cover body are opened, the first group of electric air doors 41 at the upper part are closed, and outside air is introduced into the cover body through the second group of electric air doors 44 and enters the cooling tower body through the air inlet. It will be appreciated that in practical applications, the opening and closing of each of the second set of electrically operated dampers 44 may be adjusted according to the actual air flow requirement of the cooling tower, such as opening all of the electrically operated dampers in the second set of electrically operated dampers 44, or opening a part of the electrically operated dampers in the second set of electrically operated dampers 44, and so on.

Of course, the first group of electrically operated dampers 41 in the upper part of the cover and the second group of electrically operated dampers 44 in the lower part of the cover may be operated in cooperation with each other according to actual temperature conditions. For example: when the cooling tower begins to be cooled by utilizing the outdoor natural cold energy in winter, after the cooling tower is started, the Tin (the temperature at the air inlet of the cooling tower) and the duration TIME1 of the temperature are monitored in real TIME, the external temperature Tw of the cover body 40 and the duration TIME2 of the temperature are monitored in real TIME,

an anti-icing condition is entered when Tw <0 ℃ (adjustable) and TIME2>15 (adjustable) minutes, and when Tin <0 ℃ (adjustable) and TIME1>15 (adjustable) minutes. In order to prevent the cooling tower from being frozen, the second group of electric dampers 44 at the lower part of the cover body are required to be closed, the second group of electric dampers 41 at the upper part of the cover body are simultaneously opened, hot air and a part of cold air exhausted from the fan are pumped back into the cover body through the electric dampers in the first group of electric dampers 41, the temperature of the air at the inlet of the cooling tower is increased, and then the cooling tower is prevented from being frozen. The anti-icing working condition mode of the cover body is set to be 15 minutes (time can also be set according to actual requirements), after the anti-icing working condition mode lasts for 15 minutes, the second group of electric air doors 44 at the lower part of the cover body are opened, meanwhile, the first group of electric air doors 41 are closed (the mode that the second group of electric air doors 44 are opened while the first group of electric air doors 41 are closed is recorded as a normal working condition), and external cold air can be directly introduced into the cooling tower for heat exchange. In practical application, the switching of the anti-icing working condition, the ice-melting working condition and the normal working condition can be carried out according to the detected temperature condition. For example, after the anti-icing condition continues for a period of time, the temperature of the outdoor air becomes a temperature that prevents the cooling tower from icing and enables the cooling tower to cool efficiently, at which time the normal condition may be performed. Or after the normal working condition lasts for a period of time, the outdoor temperature becomes low, the direct introduction of outdoor air can cause the cooling tower to freeze, and at the moment, the cooling tower can be adjusted to enter the anti-icing working condition. Of course, the duration of each working condition mode can be set independently according to actual needs, for example, the anti-icing working condition is set for 15 minutes, the normal working condition is set for 1 hour, and the two working conditions are operated alternately in a circulating mode.

By adopting the technical scheme, the switching of various working conditions can be carried out in winter, and the cooling tower effect of the cooling tower is not influenced while the icing of the cooling tower is prevented. When in summer or transition season, the second group of electric air doors at the lower part of the cover body are opened, the first group of electric air doors at the upper part are closed, outside air enters the cover body through the second group of electric air doors and then enters the cooling tower body through the air inlet, and the heat exchange requirement of the cooling tower in summer or transition season is not influenced.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A protective cover is characterized by comprising a cover body, a first group of electric air doors with at least one electric air door, a controller for controlling the opening and closing of at least one electric air door in the first group of electric air doors and a first temperature sensor; wherein each of the first set of electrically operated dampers is disposed in a wall of the housing, the controller is coupled to each of the first set of electrically operated dampers, and the controller is coupled to the temperature sensor.

2. The shield of claim 1, wherein the first temperature sensor is a shield exterior temperature sensor or a shield interior temperature sensor; the protective cover further comprises a second temperature sensor, and the second temperature sensor is a cover body external temperature sensor or a cover body internal temperature sensor;

wherein the cover external temperature sensor is provided outside a wall of the cover, or in the wall of the cover and has a portion exposed to the outside of the wall;

the cover internal temperature sensor is provided inside a wall of the cover, or in the wall of the cover and has a portion exposed from the inside of the wall;

the cover body is made of heat-insulating materials and/or glass fiber reinforced plastics.

3. The protective cover of claim 1, further comprising a second set of at least one motorized damper, each of the second set of motorized dampers being embedded in a wall of the cover, the controller being coupled to each of the second set of motorized dampers;

4. Protective hood according to any of claims 1-3, ch a racterized i n that the hood is arranged on a support surface, the hood having a target wall opposite and remote from the support surface, the target wall being provided with an opening, the target wall having a meandering or planar form.

5. The shield of claim 4 wherein the target wall has a third portion and a fourth portion, the third portion including a first face and a second face perpendicular to the first face; the fourth portion includes a fourth face and a fifth face perpendicular to the fourth face;

the first face and the fourth face are flush, and the second face is parallel to the fifth face;

at least one electrically powered damper of the first set of electrically powered dampers is disposed in the second face or the fifth face.

6. The shield of claim 5, wherein the third portion further has a third face perpendicular to the second face, the first, second and third faces forming a stepped configuration; the fourth portion further has a sixth surface perpendicular to the fifth surface, and the fourth surface, the fifth surface, and the sixth surface form a stepped configuration.

7. The shield of claim 6, wherein the third portion and the fourth portion are symmetrical about the opening; at least one electrically powered damper of the first set of electrically powered dampers is disposed in the first face or the fourth face.

8. A cooling tower guard comprising a cooling tower body and a protective cover according to any one of claims 1 to 7, wherein the protective cover is arranged to surround the cooling tower body.

9. The cooling tower guard of claim 8 wherein the cooling tower body has an air inlet, the cooling tower guard further comprising a third temperature sensor disposed at the air inlet;

the cooling tower body is provided with an air outlet, and the cooling tower protection device further comprises a fourth temperature sensor arranged at the air outlet.

10. A cooling tower protector according to claim 9 wherein the hood has an opening which matches the shape and size of the exhaust vent and is connected to the neck of the cooling tower body.