Maintenance workshop cooling device and maintenance workshop cooling system

Abstract

The utility model relates to an overhaul workshop cooling device and an overhaul workshop cooling system. According to the maintenance workshop cooling device, a refrigeration air conditioner is arranged on the outer wall of a maintenance workshop and provided with a refrigeration air outlet; the air outlet pipeline is arranged on the inner wall of the maintenance workshop and communicates with the refrigeration air outlet; the circulating fan is arranged on the inner wall of the maintenance workshop, the circulating fan is arranged on the side, close to the top of the maintenance workshop, of the air outlet pipeline, the circulating fan is provided with a circulating air inlet and a circulating air outlet, the circulating air inlet faces the air outlet pipeline, and the circulating air outlet deviates from the air outlet pipeline; the hot air exhaust fan is arranged at the top of the maintenance workshop, the hot air exhaust fan is provided with an exhaust air inlet and an exhaust air outlet, the exhaust air inlet faces the interior of the maintenance workshop, and the exhaust air outlet extends out of the maintenance workshop. Through the arrangement, hot air in the maintenance workshop can be rapidly collected through the circulating fan and exhausted to the outside of the maintenance workshop through the hot air exhaust fan, and the cooling efficiency of the maintenance workshop can be improved to the maximum extent.

Description

Technical Field

[0001] This application relates to the field of train maintenance technology, and in particular to cooling devices and systems for maintenance workshops. Background Technology

[0002] Trains and high-speed trains generally require inspection and maintenance, which are carried out in maintenance workshops. These workshops have multiple functions, including parking, preparation, cleaning, and maintenance. However, because the temperature is very high after the train stops, entering the maintenance workshop causes the temperature to rise rapidly, which is unfavorable for maintenance personnel to perform their work.

[0003] In related technologies, to cool down a maintenance workshop, a water-cooled air conditioner, indoor cold air vents, hot air exhaust vents connecting the indoor and outdoor areas, and ventilation ducts are installed. The hot air exhaust vents are located at the top of the room, and the water-cooled air conditioner and cold air vents are connected by ventilation ducts. At least one cold air vent is installed. However, this cooling system has a slow cooling speed and relatively low cooling efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a cooling device and system for maintenance workshops to address the problem of slow cooling speed in maintenance workshops.

[0005] A cooling device for a maintenance workshop, the cooling device comprising:

[0006] A refrigeration air conditioner is installed on the outer wall of the maintenance workshop and has a refrigeration air outlet.

[0007] An air outlet duct is installed on the inner wall of the maintenance workshop and is connected to the refrigeration air outlet.

[0008] A circulating fan is installed on the inner wall of the maintenance workshop and on the side of the air outlet duct near the top of the maintenance workshop. The circulating fan has a circulating air inlet and a circulating air outlet, with the circulating air inlet facing the air outlet duct and the circulating air outlet facing away from the air outlet duct.

[0009] A hot air exhaust fan is installed on the inner wall of the top of the maintenance workshop. The hot air exhaust fan has an exhaust air inlet and an exhaust air outlet. The exhaust air inlet faces the interior of the maintenance workshop, and the exhaust air outlet extends out of the maintenance workshop.

[0010] In one embodiment, the air outlet duct has an air inlet and an air outlet, the air inlet being connected to the cooling air outlet, and the air inlet being higher than the air outlet.

[0011] In one embodiment, the exhaust air inlet is connected to a three-ventilation duct, which includes a first inlet, a second inlet, and a third inlet. The first inlet is connected to the exhaust air inlet, and the second inlet and the third inlet are respectively located on both sides of the first inlet near the side wall of the maintenance workshop.

[0012] In one embodiment, the diameter of the first inlet is larger than the diameters of the second inlet and the third inlet.

[0013] In one embodiment, the cooling device is further provided with a sliding component, one end of which is connected to the circulating fan and the other end of which is connected to the inner wall of the maintenance workshop. The sliding component is used to drive the circulating fan to move back and forth along the height direction of the maintenance workshop.

[0014] In one embodiment, the sliding component includes:

[0015] A winch, wherein the wire rope of the winch is connected to the circulating fan;

[0016] A slider, the slider being connected to the side of the circulating fan closest to the maintenance workshop;

[0017] A slide rail is installed on the inner wall of the maintenance workshop, and the slide rail is slidably connected to the slider.

[0018] In one embodiment, the slide rail has a T-shaped cross-section.

[0019] In one embodiment, a control system is also included, the control system comprising:

[0020] The control unit is electrically connected to the circulating fan and the hot air exhaust fan;

[0021] A first temperature sensor is disposed at the circulating air outlet and is used to acquire the temperature of the circulating air outlet. The first temperature sensor is electrically connected to the control unit.

[0022] A second temperature sensor is disposed at the exhaust air inlet and is used to acquire the temperature of the exhaust air inlet. The second temperature sensor is electrically connected to the control unit.

[0023] A maintenance workshop cooling system includes the maintenance workshop cooling device described above.

[0024] In one embodiment, the maintenance workshop is divided along its length into a preparation section maintenance space, a cleaning section maintenance space, and a maintenance section maintenance space; each of the preparation section maintenance space, the cleaning section maintenance space, and the maintenance section maintenance space is equipped with a maintenance workshop cooling device.

[0025] The aforementioned cooling device and system for the maintenance workshop includes a refrigeration unit installed on the outer wall of the workshop. Air outlet ducts are installed on the inner wall of the workshop, connecting to the refrigeration air outlets. Cool air from the refrigeration unit enters the workshop through these ducts. Because the density of cold air is greater than that of hot air in the workshop, the cold air pushes the hot air upwards. A portion of the hot air in the central part of the workshop is directly exhausted to the outside by a hot air exhaust fan, while another portion of the hot air on the side wall moves upwards by a circulating fan and also converges at the hot air exhaust fan before being exhausted to the outside. This design allows for the rapid collection of hot air in the workshop by the circulating fan and its exhaust to the outside by the hot air exhaust fan, maximizing the cooling efficiency of the maintenance workshop. Attached Figure Description

[0026] Figure 1 This is a side view of the maintenance workshop in one embodiment of this application.

[0027] Figure 2 This is a schematic cross-sectional view of the maintenance workshop in one embodiment of this application.

[0028] Figure 3 This is a schematic cross-sectional view of the sliding component in one embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Refrigeration and air conditioning;

[0031] 20. Air outlet duct;

[0032] 30. Circulating fan; 31. Circulating air inlet; 32. Circulating air outlet;

[0033] 40. Hot air exhaust fan; 41. Exhaust air inlet; 42. Exhaust air outlet;

[0034] 50. Three ventilation ducts; 51. First inlet; 52. Second inlet; 53. Third inlet;

[0035] 60. Sliding assembly; 61. Winch; 62. Slider; 63. Guide rail;

[0036] 70. Control Department;

[0037] 80. First temperature sensor;

[0038] 90. Second temperature sensor. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0045] See Figure 1 and Figure 2 An embodiment of this application provides a cooling device for a maintenance workshop, comprising: a refrigeration air conditioner 10, which is installed on the outer wall of the maintenance workshop and has a refrigeration air outlet; an air outlet duct 20, which is installed on the inner wall of the maintenance workshop and is connected to the air outlet of the refrigeration air conditioner 10; a circulating fan 30, which is installed on the inner wall of the maintenance workshop and on the side of the air outlet duct 20 near the top of the maintenance workshop, having a circulating air inlet 31 and a circulating air outlet 32, with the circulating air inlet 31 facing the air outlet duct 20 and the circulating air outlet 32 ​​facing away from the air outlet duct 20; and a hot air exhaust fan 40, which is installed on the inner wall of the top of the maintenance workshop, having an exhaust air inlet 41 and an exhaust air outlet 42, with the exhaust air inlet 41 facing the interior of the maintenance workshop and the exhaust air outlet 42 extending out of the maintenance workshop.

[0046] In this embodiment, the refrigeration air conditioner 10 is installed on the outer wall of the maintenance workshop, and the staff manually turns on the refrigeration air conditioner 10. The air outlet duct 20 is installed on the inner wall of the maintenance workshop, and its cooling air outlet is connected through the air outlet duct 20. The cold air from the refrigeration air conditioner 10 enters the maintenance workshop through the air outlet duct 20. Since the density of cold air is greater than that of hot air in the maintenance workshop, the cold air will push the hot air upward. Some of the hot air located in the middle of the maintenance workshop is directly discharged to the outside of the maintenance workshop through the hot air exhaust fan 40, while another part of the hot air on the side wall of the maintenance workshop will move upward through the circulating air inlet 31 and circulating air outlet 32 ​​of the circulating fan 30, and will also converge at the hot air exhaust fan 40, and be discharged to the outside of the maintenance workshop through the exhaust outlet 42.

[0047] With the above configuration, hot air in the maintenance workshop can not only be discharged to the outside through the hot air exhaust fan 40, but also the rising hot air can be quickly drawn to the top of the maintenance workshop by the circulating fan 30 and discharged to the outside. Therefore, in this embodiment, the circulating fan 30 can be used to quickly collect the hot air in the maintenance workshop and discharge it to the outside of the maintenance workshop through the hot air exhaust fan 40, thereby maximizing the cooling efficiency of the maintenance workshop.

[0048] Furthermore, the air outlet duct 20 has an air inlet and an air outlet. The air inlet is connected to the cooling air outlet, and the air inlet is higher than the air outlet. In this embodiment, the air outlet duct 20 is inclined, with the air inlet higher than the air outlet, allowing cold air to blow from an upward angle to the ground. If the air outlet duct 20 were horizontal, some of the hot air on the ground would not be able to rise quickly, affecting the perceived cooling effect for maintenance personnel standing on the ground. Because the cold air in this embodiment blows directly to the ground, it can gradually rise from the ground, and all the hot air starting from the ground rises. Then, the hot air exhaust fan 40 exhausts the hot air out of the maintenance workshop, resulting in a better cooling effect and greater comfort for maintenance personnel on the ground.

[0049] Furthermore, a three-ventilation duct 50 is connected to the exhaust air inlet 41. The three-ventilation duct 50 includes a first inlet 51, a second inlet 52, and a third inlet 53. The first inlet 51 is connected to the exhaust air inlet 41, and the second inlet 52 and the third inlet 53 are respectively located on both sides of the first inlet 51 near the side wall of the maintenance workshop. In this embodiment, in order to increase the air intake of the hot air inlet duct, a three-ventilation duct 50 is connected to the exhaust air inlet 41. The first inlet 51, the second inlet 52, and the third inlet 53 of the three-ventilation duct 50 can all intake air. Hot air enters the exhaust air inlet 41 through the first inlet 51, the second inlet 52, and the third inlet 53, and is then discharged from the maintenance workshop through the exhaust outlet 42 of the hot air exhaust fan 40. In addition, in this embodiment, the second inlet 52 and the third inlet 53 are located on both sides of the first inlet 51 near the side wall of the maintenance workshop, thereby enabling the second inlet 52 and the third inlet 53 to draw in hot air near the side walls of the maintenance workshop, increasing the efficiency of hot air extraction.

[0050] Furthermore, the diameter of the first inlet 51 is larger than the diameters of the second inlet 52 and the third inlet 53. This arrangement is to accommodate the distribution of hot air in the maintenance workshop. In this embodiment, due to the arrangement of the circulating fan 30, hot air from the side walls of the maintenance workshop can quickly enter the three-ventilation duct 50 through the circulating fan 30 and then be discharged through the hot air exhaust fan 40. However, since the hot air in the middle of the maintenance workshop is greater than the hot air drawn from the sides by the circulating fan 30, in order to quickly and directly discharge the hot air from the middle of the maintenance workshop, the diameter of the first inlet 51 is set to the maximum, thereby obtaining the maximum airflow and improving the discharge efficiency of the hot air in the middle of the maintenance workshop.

[0051] In addition, such as Figure 2 and Figure 3 As shown, the cooling system also includes a sliding component 60. One end of the sliding component 60 is connected to the circulating fan 30, and the other end is connected to the inner wall of the maintenance workshop. The sliding component 60 drives the circulating fan 30 to reciprocate along the height of the maintenance workshop. In this embodiment, the sliding component 60 allows the circulating fan 30 to move up and down along the height of the maintenance workshop, thereby adjusting the height of the circulating fan 30. In actual use, the circulating fan 30 can slide to the highest and lowest positions. When at the lowest position, the circulating fan 30 can extract the hot air at the bottom to the top of the workshop to the maximum extent with minimal air resistance, thereby improving cooling efficiency. When at the highest position, due to greater airflow resistance, the airflow speed is reduced, reducing the extraction effect, thus adapting to different extraction needs.

[0052] In this embodiment, the sliding assembly 60 includes: a winch 61, the wire rope of which is connected to the circulating fan 30; a slider 62, which is connected to the side of the circulating fan 30 near the maintenance workshop; and a slide rail 63, which is mounted on the inner wall of the maintenance workshop and is slidably connected to the slider 62. The winch 61 drives the slider 62 to move on the slide rail 63, thereby moving the circulating fan 30 along the side wall of the maintenance workshop, thus changing the position of the circulating fan 30.

[0053] In other embodiments, the sliding component 60 can realize the cooperation between the linear cylinder and the guide rail. The linear cylinder is set on the side wall of the workshop, the output shaft of the cylinder is connected to the circulating fan 30, and the circulating fan 30 is connected to the side wall of the workshop through the cooperation of the slide rail 63 and the slider 62.

[0054] Furthermore, the slide rail 63 has a T-shaped cross-section. The special shape of the T-shaped slide rail 63 restricts the slider 62 to slide only in the height direction, thereby realizing precise linear motion between the components.

[0055] In this embodiment, a control system is also included. The control system includes: a control unit 70, which is electrically connected to the circulating fan 30 and the hot air exhaust fan 40; a first temperature sensor 80, which is disposed at the circulating air outlet 32 ​​and is used to acquire the temperature of the circulating air outlet 32, and is electrically connected to the control unit 70; and a second temperature sensor 90, which is disposed at the exhaust air inlet 41 and is used to acquire the temperature of the exhaust air inlet 41, and is electrically connected to the control unit 70. After acquiring the temperature from the first temperature sensor 80, the control unit 70 determines whether the temperature at the outlet of the circulating fan 30 has decreased to a target value. If it has decreased to the target value, the control unit 70 can control the circulating fan 30 to shut down. After acquiring the temperature from the second temperature sensor 90, the control unit 70 determines whether the temperature at the exhaust air inlet 41 has decreased to a target value. If it has decreased to the target value, the control unit 70 can control the hot air exhaust fan 40 to shut down. With the above settings, the hot air exhaust fan 40 and the circulating fan 30 can be turned off after the indoor temperature of the maintenance workshop drops to the target value, realizing intelligent and automated start and stop of the circulating fan 30 and the hot air exhaust fan 40.

[0056] Furthermore, the winch 61 is electrically connected to the control unit 70. The control unit 70 can control the rotation of the winch 61, thereby using the wire rope on the winch 61 to control the circulating fan 30 to move up and down in the vertical direction, changing the position of the circulating fan 30.

[0057] In this embodiment, the cooling process can be controlled by the control system, and is divided into a rapid cooling stage and an energy-saving cooling stage according to the location of the circulating fan 30, so as to achieve energy-saving cooling:

[0058] During the rapid cooling phase:

[0059] When the temperature inside the workshop is high and cooling is required, maintenance personnel must first manually turn on the air conditioning unit 10. Cold air enters the workshop through the air outlet duct 20, and the control unit 70 controls the sliding component 60 to drive the circulating fan 30 to its lowest position. When the circulating fan 30 is at its lowest position, most of the hot air is drawn to the top of the workshop, and then the hot air exhaust fan 40 is used to exhaust the hot air out of the workshop. Through this process, the workshop can be cooled down quickly.

[0060] During the energy-saving and cooling phase:

[0061] The temperature collected by the first temperature sensor 80 is transmitted to the control unit 70. The control unit 70 determines that when the temperature inside the workshop reaches a comfortable level, most of the space is filled with cold air. If the circulating fan 30 is positioned too low, cold air will be exhausted through the circulating fan 30, reducing the cooling effect. At this time, the control unit 70 controls the sliding component 60 to drive the circulating fan 30 to its highest position. When the circulating fan 30 is at its highest position, the exhaust of cold air is reduced, achieving energy-saving cooling.

[0062] At this point, the temperature obtained by the second temperature sensor 90 must be greater than the temperature obtained by the first temperature sensor 80. Therefore, it is still necessary to extract the hot air to the outside of the workshop through the three ventilation ducts 50.

[0063] The above process continues until the control unit 70 determines that the temperature information obtained by the first temperature sensor 80 is less than the target temperature, at which point the control unit 70 will control the circulating fan 30 to shut down. When the control unit 70 determines that the temperature information obtained by the second temperature sensor 90 is less than the target temperature, the control unit 70 will control the hot air exhaust fan 40 to shut down.

[0064] This solution also discloses a maintenance workshop cooling system, which includes multiple of the aforementioned maintenance workshop cooling devices.

[0065] This solution can divide the maintenance workshop into multiple maintenance sections along its length, including preparation section maintenance space, cleaning section maintenance space, and maintenance section maintenance space. Each maintenance section is equipped with a cooling device to meet the needs of actual production.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A device for reducing the temperature in a service shop, characterized in that The cooling device for the maintenance workshop includes: A refrigeration air conditioner (10) is installed on the outer wall of the maintenance workshop, and the refrigeration air conditioner (10) has a refrigeration air outlet; An air outlet duct (20) is installed on the inner wall of the maintenance workshop and is connected to the refrigeration air outlet. A circulating fan (30) is installed on the inner wall of the maintenance workshop. The circulating fan (30) is installed on the side of the air outlet duct (20) near the top of the maintenance workshop. The circulating fan (30) has a circulating air inlet (31) and a circulating air outlet (32). The circulating air inlet (31) faces the air outlet duct (20), and the circulating air outlet (32) faces away from the air outlet duct (20). A hot air exhaust fan (40) is installed on the top inner wall of the maintenance workshop. The hot air exhaust fan (40) has an exhaust air inlet (41) and an exhaust air outlet (42). The exhaust air inlet (41) faces the interior of the maintenance workshop, and the exhaust air outlet (42) extends out of the maintenance workshop.

2. The service shop cooling device of claim 1, wherein, The air outlet duct (20) has an air inlet and an air outlet. The air inlet is connected to the cooling air outlet, and the air inlet is higher than the air outlet.

3. The cooling device for the maintenance workshop according to claim 1, characterized in that, The exhaust air inlet (41) is connected to a three-ventilation duct (50), which includes a first inlet (51), a second inlet (52) and a third inlet (53). The first inlet (51) is connected to the exhaust air inlet (41), and the second inlet (52) and the third inlet (53) are respectively located on both sides of the first inlet (51) near the side wall of the maintenance workshop.

4. The service shop cooling device of claim 3, wherein, The diameter of the first inlet (51) is greater than the diameters of the second inlet (52) and the third inlet (53).

5. The cooling device for the maintenance workshop according to claim 1, characterized in that, The cooling device is also provided with a sliding component (60), one end of which is connected to the circulating fan (30), and the other end of which is connected to the inner wall of the maintenance workshop. The sliding component (60) is used to drive the circulating fan (30) to move back and forth along the height direction of the maintenance workshop.

6. The service shop cooling device of claim 5, wherein, The sliding component (60) includes: A winch (61), the wire rope of which is connected to the circulating fan (30). A slider (62) is connected to the side of the circulating fan (30) near the maintenance workshop; The slide rail (63) is installed on the inner wall of the maintenance workshop, and the slide rail (63) is slidably connected to the slider (62).

7. The service shop cooling device of claim 6, wherein, The slide rail (63) has a T-shaped cross-section.

8. The service shop cooling device according to any one of claims 1 to 7, characterized in that It also includes a control system, which includes: The control unit (70) is electrically connected to the circulating fan (30) and the hot air exhaust fan (40); A first temperature sensor (80) is disposed at the circulating air outlet (32). The first temperature sensor (80) is used to obtain the temperature of the circulating air outlet (32). The first temperature sensor (80) is electrically connected to the control unit (70). The second temperature sensor (90) is disposed at the exhaust air inlet (41) and is used to obtain the temperature of the exhaust air inlet (41). The second temperature sensor (90) is electrically connected to the control unit (70).

9. A service shop cooling system characterized by, It includes the maintenance workshop cooling device as described in any one of claims 1 to 8.

10. The service shop cooling system of claim 9, wherein, The maintenance workshop is divided into a preparation section maintenance space, a cleaning section maintenance space, and a maintenance section maintenance space along its length; each of the preparation section maintenance space, the cleaning section maintenance space, and the maintenance section maintenance space is equipped with a maintenance workshop cooling device.

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