Fin tube heat dissipation and cooling energy-saving device used in unattended machine rooms or base stations

Abstract

In an unattended computer room or base station, in order to maintain the normal operating temperature of the equipment, it is necessary to use air conditioners to dissipate heat and cool down, which consumes a lot of electricity. The "fin tube cooling and energy-saving device for unattended computer rooms or base stations" is an inverted U-shaped sealed fin tube system installed outside the computer room or base station, which rises first and then falls. When the outdoor temperature is lower than the indoor hot air temperature, the chimney effect and siphon effect of the gas in the pipeline system are used to automatically guide the indoor hot air out of the room, circulate in the inverted U-shaped sealed fin tube system, and exchange heat with the outdoor cool air across the pipeline wall during the flow. After dissipating heat and cooling, it automatically flows back to the room, thereby achieving heat dissipation and cooling of the indoor air. This circulating flow heat dissipation process does not require external energy, is very low in cost, safe and reliable, requires basically no maintenance, has no noise and pollution, can significantly reduce the working time of the air conditioner, and saves electricity and extends the life of the air conditioner.

Description

[0001] (I) Technical field: The present invention belongs to the field of energy-saving technology for communication rooms and base stations.

[0002] (II) Background technology: Various unattended machine rooms and mobile communication base stations with electrical equipment running automatically all year round are usually in a closed state because they are unattended. The communication equipment inside, even if it is a relatively energy-saving new type of equipment, will continue to generate heat during operation. If the heat cannot be dissipated in time, the indoor temperature will continue to rise, making it difficult for the equipment to continue to operate normally. In order to maintain the normal working temperature of the equipment, the heat generated by the equipment during operation must be dissipated to the outside. For this purpose, air conditioners are usually used for temperature control (cooling). The temperature control air conditioning used in each machine room and mobile communication base station to maintain the normal working temperature consumes a lot of electricity. More than ten years ago, a "fresh air energy-saving system" was introduced to cool the equipment by introducing outdoor cool air when the outdoor temperature was low. Although this fresh air energy-saving system can save energy, it is still necessary to introduce outdoor cool air to cool the equipment. In addition, the ventilation volume of ordinary fresh air systems is still relatively large, and it is easy to bring outdoor dust and other pollutants into the room. Even if an air filter device is used at the air inlet, it not only requires frequent maintenance, but it is still difficult to avoid indoor pollution. The ventilation system not only still consumes a lot of electricity, but also needs to be equipped with a relatively complex automatic control system, and its use and maintenance costs are relatively high.

[0003] Previously, the applicant had proposed an "inverted U-shaped single-tube siphon cooling and energy-saving device for unattended machine rooms or base stations", which is a technical solution that utilizes the chimney effect of hot air in the ascending air duct to extract the hot air in the machine room or base station to the outside, and utilizes the siphon effect formed in the closed inverted U-shaped single-pipe system to allow the indoor hot air to automatically flow through the closed circulation outdoors, and exchange heat with the outdoor cool air across the pipe wall, thereby achieving cooling and energy saving. This technical solution overcomes the above-mentioned shortcomings of the fresh air energy-saving technology, but also has the disadvantage of being too high and not very easy to install. The "fin tube heat dissipation and cooling energy-saving device for unattended machine rooms or base stations" proposed in the present application now retains the advantage of the previous solution that the indoor air can automatically circulate in the outdoor closed pipe to achieve cooling and energy saving, and overcomes the disadvantage that the pipe of the previous solution is too high.

[0004] (III) Invention content: The "fin tube heat dissipation and cooling energy-saving device for unattended machine rooms or base stations" of the present invention is a set or a group of devices installed on the top surface or outside the side wall of a machine room or base station [8], and consisting of an air inlet [1] opened on the top surface or side wall of the upper space of the machine room or base station [8], and an upward air pipe [2] connected to it and rising above the top surface of the machine room or base station [8], a top horizontal pipe [3], a downward air pipe [4], a fin tube radiator [5], and a further downward return air pipe [6] and an air outlet [7] at the lower end of the return air pipe communicating with the lower space of the machine room or base station [8], which are sequentially sealed and connected to form a closed pipeline system; or the top is omitted. The horizontal pipe [3] and the downward air pipe [4] directly connect the air inlet [1] to the upper inlet of the finned tube radiator [5] which is horizontally or vertically arranged on the top of the machine room or base station [8] through the upward air pipe [2] which is vertically arranged above the top of the machine room or base station [8]. The air after the heat dissipation by the finned tube radiator [5] is then sealedly connected to the air inlet of the lower space of the machine room or base station [8] through the downward return air pipe [6] and the air outlet [7] of the pipe system. The whole system is generally presented as an inverted U-shaped pipe structure which is vertically arranged outdoors and rises first and then falls, and has a part which is vertically arranged above the top of the machine room or base station [8].

[0005] When the outdoor temperature is lower than the temperature of the hot air in the upper space of the room, the hot air gathered in the upper part of the room of the computer room or base station will be automatically drawn into the upward air duct [2] connected to the air inlet from the air inlet [1] due to the chimney effect due to its light specific gravity, and further flow into the top horizontal pipe [3] and the downward air duct [4], and then flow into the upper air inlet of the fin tube radiator [5] placed horizontally or vertically on the top surface of the computer room or base station or outside the side wall, and after being fully cooled through the upward air duct [2], the top horizontal pipe [3], the downward air duct [4] and the fin tube radiator [5], it will flow into the downward return air duct [6] from the lower air outlet of the fin tube radiator [5], and finally flow back to the lower space of the computer room or base station [8] from the air outlet [7] connected to the lower space of the computer room or base station [8].

[0006] When the outdoor temperature is lower than the temperature of the hot air above the room, in the sealed pipe, due to the different specific gravity of hot and cool air, in addition to the chimney effect generated in the upward air pipe [2] to promote the flow of gas, there is also a siphon effect formed by heat rise and cold drop in the overall vertical inverted U-shaped pipe system, which further promotes the natural flow of air in the pipe system, so that the hot air in the room of the computer room or base station [8] can continuously enter the sealed pipe outside, and exchange heat with the cool air outside through the pipe wall (and the fins on the pipe) that are easy to transfer heat, and return to the room after the temperature drops and becomes heavy outside. Through this continuous circulation of indoor air in the outdoor sealed pipe and heat exchange with the cool air outside through the pipe wall that is easy to transfer heat, the purpose of cooling the indoor hot air can be achieved. Since this continuous natural ventilation and cooling device does not require energy supply, it can greatly reduce the start-up time of the air conditioner, achieving the purpose of energy saving. Especially in autumn, winter and spring when the outdoor temperature is low, the energy saving effect is more obvious.

[0007] Since the entire piping system is located outdoors, it is necessary to use weather-resistant and heat-conducting metal materials to make the piping system, and to install sunshades that do not affect ventilation for the piping system

[10] .

[0008] Since the finned tube radiator [5] is used as a device that undertakes the main heat dissipation task, the height of the vertical inverted U-shaped pipe structure composed of the upward air pipe [2], the top horizontal pipe [3] and the downward air pipe [4] can be significantly reduced. In addition to playing a certain heat dissipation role, it mainly plays the role of exhausting air and introducing gas into the finned tube radiator [5]. Here, the height of the upward air pipe [2], the top horizontal pipe [3] and the downward air pipe [4] is generally about 2 meters higher than the top surface of the machine room or base station [8]. The pipe diameters of the upward air pipe [2], the top horizontal pipe [3], the downward air pipe [4] and the downward return air pipe [6] are generally between 10 cm and 20 cm. According to the required heat dissipation amount, one, two or more sets of pipe systems can be used. A bracket

[13] that can support and fix the pipe system can be installed on the machine room or base station [8], and the sunshade

[10] is installed on the bracket

[13] . It is also possible to omit the top transverse pipe [3] and the descending air pipe [4], and directly connect the ascending air pipe [2] to the upper air inlet of the finned tube radiator [5] installed on the top of the machine room or base station [8]. This can further reduce the height, but due to insufficient suction force, the air flows slowly in the closed pipe, and the heat dissipation effect is poor. In this case, a small fan [9] can be installed near the air inlet [1] of the pipeline system, and the flow rate of the gas in the pipeline can be accelerated by turning on the small fan. When installing the small fan, it is necessary to pay attention to the fact that it can blow air into the pipeline when it is turned on, and it cannot hinder the natural air intake when it is not turned on. The small fan can be powered by a solar cell

[11] installed on the sunshade

[10] , and is self-sufficient without the need for external power supply. The start of the small fan is automatically controlled by the temperature control device, so that it is only started when the temperature difference between indoor and outdoor is small and the outdoor temperature is still lower than the temperature of the hot air above the room. Once the outdoor temperature is higher than the temperature of the hot air above the room, the small fan is automatically turned off to prevent the air in the pipeline heated by the outdoor hot air from being circulated into the room.

[0009] When the outdoor temperature is lower than the temperature of the hot air above the room, the "finned tube heat dissipation and cooling energy-saving device used in unattended computer rooms or base stations" can be used to automatically circulate indoor gas outdoors, and cool the hot air in the computer room or base station during the circulation process. A key problem is that the entire pipeline system must be airtight, otherwise it is difficult to form an effective siphon effect. There are many ways to seal and connect the pipeline, which can be welded, or connected by screw joints with sealing gaskets, snaps or flange joints.

[0010] The fin tube radiator [5] installed on the top surface of the machine room or base station [8] can be installed horizontally or vertically. The horizontally installed fin tube radiator [5] has a multi-layer composite structure. Not only does each layer consist of two, three or more parallel fin tubes, but also it is divided into two, three or more layers starting from the air inlet at the top, which are connected in series or in parallel and descend layer by layer. The air inside can be cooled by heat exchange with the cool air outside the pipe through the pipe wall during the flow from top to bottom, until it flows out from the outlet of the bottom layer of the fin tube radiator [5], passes through the downward return air pipe [6] and the air outlet [7] of the pipe system, and enters the lower space of the machine room or base station [8]. The vertically installed finned tube radiator [5] is composed of multiple rows and columns of vertical finned tubes connected in parallel. Air is taken in from the air inlet at the top, and after being cooled by the multiple rows and columns of vertical finned tubes connected in parallel, it flows from the air outlet at the bottom into the downward return air pipe [6] and the air outlet [7] of the pipeline system, and enters the lower space of the machine room or base station [8]. When the outdoor temperature in summer is higher than the indoor hot air temperature, the air in the pipeline system is higher in temperature than the indoor hot air, and its specific gravity is also lighter, so it floats on the surface and does not flow into the room. At this time, turning on the air conditioner to cool the room will not be affected by the pipeline system. In order to ensure that the air in the entire pipeline system flows in one direction, the downward return air pipe [6] can be inserted into the room from the top of the machine room or base station [8] to avoid the problem of hot air upward reflux in the downward return air pipe [6] under the top surface of the machine room or base station [8] when the outdoor temperature is too high in summer. If the downward return air pipe [6] is outdoors, and the air outlet [7] is opened at the air inlet at the bottom of the machine room or base station [8], in order to avoid this backflow problem, a check valve

[12] can be installed at the air inlet at the bottom of the machine room or base station [8] (i.e., the air outlet [7] of the pipeline system) to prevent backflow. Since the wind pressure of the air circulating continuously in the pipeline is not large, the installed check valve

[12] should be made of light materials and a highly sensitive structure, and it should be manually controlled to be in a fully open state at ordinary times, and only in the hot summer, the check valve

[12] is in a working state to control the one-way flow of the air.

[0011] The fin tube radiator [5] installed outside the side wall of the machine room or base station [8] (especially the shady side) can also be installed horizontally or vertically. The horizontally installed fin tube radiator [5] has a multi-layer composite structure. Not only does each layer consist of two, three or more parallel fin tubes, but also it is divided into two, three or more layers starting from the air inlet at the top, which are connected in series or in parallel and descend layer by layer. The air inside can be cooled by heat exchange with the cool air outside the pipe through the pipe wall during the flow from top to bottom, until it flows out from the outlet of the bottom layer of the fin tube radiator [5], passes through the downward return air pipe [6] and the air outlet [7] of the pipe system, and enters the lower space of the machine room or base station [8]. The vertically installed finned tube radiator [5] is composed of multiple rows and columns of vertical finned tubes connected in parallel. Air is taken in from the air inlet at the top, and after being cooled by the multiple rows and columns of vertical finned tubes connected in parallel, it flows from the air outlet at the bottom into the downward return air duct [6] and the air outlet [7] of the pipeline system, and enters the lower space of the machine room or base station [8]. Unlike the finned tube radiator [5] installed on the top surface of the machine room or base station [8], the finned tube radiator [5] installed outside the side wall of the machine room or base station [8] is located below the top surface of the machine room or base station [8]. When the outdoor temperature is too high in summer, the hot air heated by the outdoor air in the finned tube radiator [5] and the return air pipe [6] located below the top surface of the machine room or base station [8] may flow back in the opposite direction. Therefore, a one-way valve

[12] is required to control the direction of gas flow, so that the gas in the pipeline can only enter from the air inlet [1] above the machine room or base station [8], pass through the upward air pipe [2], the top horizontal pipe [3], the downward air pipe [4], the finned tube radiator [5], the downward return air pipe [6], and finally flow back to the lower space of the machine room or base station [8] from the air outlet [7] connected to the lower space of the machine room or base station [8], and cannot flow in the opposite direction. This is particularly important in the summer when the outdoor temperature is higher than the indoor hot air temperature. Because in this case, the air in the pipe system is hotter than the indoor hot air and has a lighter specific gravity, the hot air in the finned tube radiator [5] installed outside the side wall below the top surface of the machine room or base station [8] will flow into the room in reverse order through the downpipe [4], the top transverse pipe [3], and the uppipe [2] through the upper air inlet [1] of the machine room or base station [8]. At this time, when the air conditioner is turned on to cool the room, it will be affected by the backflow of the pipe system, increasing the burden on the air conditioner. The one-way valve

[12] is installed at the indoor air inlet (that is, the air outlet [7] of the pipe system), and can be placed in a fixed open state at ordinary times. Only when the temperature is high in summer, the one-way valve

[12] is placed in a working state to control the one-way flow of gas.

[0012] The communication room or base station adopts this "fin tube heat dissipation and cooling energy-saving device used in unattended rooms or base stations" to achieve energy saving. It is not only extremely low-cost, but also safe and reliable, basically does not require maintenance, and is completely noise-free and pollution-free. Although it cannot completely replace the role of air conditioners, it can significantly reduce the working time of air conditioners, save air conditioner electricity, extend the service life of air conditioners, reduce electronic waste formed by scrapped air conditioners, and reduce the pollution of the atmospheric environment caused by the refrigerant released when they are damaged. At the same time, this low-cost infrastructure will not become a target of thieves like air conditioners, and will not lose its effectiveness due to theft. As long as the outdoor temperature is not higher than the temperature of the indoor hot air, this device can automatically operate and play a cooling and energy-saving role.

[0013] This energy-saving device is suitable for use throughout the country. Even in the southern regions with relatively high temperatures, most of the time the outdoor temperature is lower than the indoor hot air temperature. This cooling device can automatically play a role in cooling and saving energy.

[0014] (IV) Description of the drawings: Figure 1 It is a schematic diagram of the vertical configuration of a "fin tube heat dissipation and cooling energy-saving device used in an unattended computer room or base station" in which a fin tube radiator is installed on the top surface of the computer room or base station, and also shows the flow path of indoor air in this cooling and energy-saving device. Figure 2 It is a schematic diagram of the vertical configuration of a "fin tube heat dissipation, cooling and energy-saving device used in an unattended computer room or base station" in which a fin tube radiator is installed outside the side wall of the computer room or base station.

[0015] Among them, number [1] indicates the air inlet of the piping system of such device, which is also the air outlet of the upper wall of the machine room or base station; number [2] indicates the upward air pipe of the piping device; number [3] indicates the top horizontal pipe; number [4] indicates the downward air pipe; number [5] indicates the finned tube radiator; number [6] indicates the return air pipe; number [7] indicates the air outlet of the piping system, which is also the air inlet of the lower part of the machine room or base station; number [8] indicates the indoor space of the machine room or base station; number [9] indicates a small fan; number

[10] indicates a sun visor; number

[11] indicates a solar cell; number

[12] indicates a one-way valve; number

[13] indicates a bracket. (V) Specific implementation methods:

[0017] according to Figure 1As shown, a "fin tube heat dissipation and cooling energy-saving device for an unattended machine room or base station" is installed on the top surface of a machine room or base station. First, a set of fin tube radiators [5] is horizontally installed and fixed on a portion of the top surface of the machine room or base station [8] with a certain load-bearing capacity and a bracket

[13] . The diameters of the air inlet and air outlet of the fin tube radiator [5] should be consistent with the diameters of the selected matching ascending air pipe [2], the top horizontal pipe [3], the descending air pipe [4], and the descending return air pipe [6]. Then, the ascending air duct [2], the top transverse duct [3], the descending air duct [4], the finned tube radiator [5] and the descending return air duct [6] are successively and sealedly connected one by one in sequence to form a pipeline system, and the air inlet [1] at the lower end of the ascending air duct [2] is sealedly connected to the air outlet on the top surface or side wall of the upper space of the machine room or base station [8], and the air outlet [7] at the lower end of the return air duct [6] is sealedly connected to the air inlet of the lower space of the machine room or base station [8], and a one-way valve

[12] that can prevent backflow is installed at the air outlet [7], and a small fan [9] powered by a solar cell

[11] and equipped with a temperature control system is installed near the air inlet [1] of the pipeline system. A bracket

[13] capable of supporting and fixing these pipes is installed on the periphery of the ascending air pipe [2], the top horizontal pipe [3], the descending air pipe [4] and the finned tube radiator [5], and a sunshade

[10] capable of blocking the sun without affecting the heat dissipation by wind is installed at an appropriate position of the bracket

[13] , and a solar cell

[11] for powering a small fan [9] is installed at an appropriate position of the sunshade

[10] .

[0018] In this way, a set of "finned tube heat dissipation and cooling energy-saving device for unattended machine room or base station" is installed. If the required heat dissipation is large, and the power of one set of "finned tube heat dissipation and cooling energy-saving device for unattended machine room or base station" is not enough, you can install one or two sets of "finned tube heat dissipation and cooling energy-saving device for unattended machine room or base station" on the top surface of the machine room or base station or on the side wall.

Claims

1. A finned tube heat dissipation and cooling energy-saving device for use in an unattended machine room or base station, characterized in that A closed pipe system is a set or a group of sets of air inlets [1] installed on the top surface or outside the side wall of a machine room or base station [8], which is composed of an air inlet [1] opened on the top surface or side wall of the upper space of the machine room or base station [8], an upward air pipe [2] connected to the air inlet [1] and extending vertically above the top surface of the machine room or base station [8], a top horizontal pipe [3], a downward air pipe [4], a finned tube radiator [5], and a further downward return air pipe [6] and an air outlet [7] at the lower end of the return air pipe communicating with the lower space of the machine room or base station [8], which are sequentially sealed and connected. or omitting the top horizontal pipe [3] and the descending air pipe [4], directly connecting the air inlet [1] to the upper inlet of the finned tube radiator [5] placed horizontally or vertically on the top of the machine room or base station [8] through the ascending air pipe [2] which is erected above the top of the machine room or base station [8], and then the air after the heat dissipation of the finned tube radiator [5] is discharged from the outlet below the finned tube radiator [5], through the descending return air pipe [6] and the air outlet [7] of the pipe system, and is sealed and connected to the air inlet of the lower space of the machine room or base station [8] The finned tube radiator [5] used can be installed horizontally or vertically: the finned tube radiator [5] installed horizontally has a multi-layer composite structure, and is layered in series or in parallel and descends layer by layer, so that the air inside can be cooled by heat exchange with the cool air outside the pipe through the pipe wall during the flow from top to bottom, until it flows out from the outlet of the bottom layer of the finned tube radiator [5], passes through the downward return air pipe [6] and the air outlet [7] of the pipe system, and enters the lower space of the computer room or base station [8]; The vertically installed finned tube radiator [5] is composed of multiple rows and columns of vertical finned tubes connected in parallel: air is taken in from the air inlet at the top, and after being cooled by the multiple rows and columns of vertical finned tubes connected in parallel, it flows from the air outlet at the bottom into the downward return air duct [6] and the air outlet [7] of the pipeline system, and enters the lower space of the computer room or base station [8]. The entire pipeline system is generally presented outdoors as an inverted U-shaped pipeline structure that is vertical, rises first and then falls, and has a portion higher than the top surface of the computer room or base station [8].

2. The finned tube heat dissipation and cooling energy-saving device for use in an unattended machine room or base station according to claim 1 is characterized in that A one-way valve [12] is installed at the gas outlet [7] at the lower end of the gas return pipe [6] of the pipeline system to ensure that the gas in the pipeline can only flow from top to bottom and not in the opposite direction.

3. The fin tube heat dissipation and cooling energy-saving device for use in an unattended machine room or base station according to claim 1 is characterized in that A bracket [13] for fixing the pipeline system is installed, and a sunshade [10] is installed on the bracket [13] to prevent the pipeline from being exposed to the sun without affecting ventilation.

4. The finned tube heat dissipation and cooling energy-saving device for use in an unattended machine room or base station according to claim 1 is characterized in that A small fan [9] automatically controlled by a temperature control device is installed near the air inlet [1] of the duct system, and a solar panel [11] for supplying power to the small fan is installed on the sun protection visor [10].

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