A machine shed cooling system and engineering machinery

Abstract

The utility model discloses a machine shed heat dissipation system and engineering machinery, comprising a machine shed, an adjustable air intake grille, a heat dissipation fan and a control component; the machine shed is composed of an engine compartment connected with a pump room; the adjustable air intake grille is respectively arranged on the side plates of the engine compartment and the pump room; the heat dissipation fan is respectively arranged on the top plates of the engine compartment and the pump room; the control component comprises a detection module and a control module; the detection module is used to obtain the engine coolant temperature and the hydraulic oil temperature; the input end of the control module is electrically connected to the detection module, the output end of the control module is electrically connected to the air intake grille and the heat dissipation fan, and the control module adjusts the air intake amount of the air intake grille and the air outlet amount of the heat dissipation fan by receiving the temperature signal of the detection module, so that the engine and the hydraulic system operate within a normal temperature range.

Description

Technical Field

[0001] The utility model relates to a machine shed heat dissipation system and belongs to the technical field of engineering machinery. Background Art

[0002] Construction machinery is an important equipment for infrastructure construction. Compared with cars, construction machinery has a slow travel speed and poor natural heat dissipation conditions. Construction machinery usually has no headwind, and the heat source includes not only the engine, but also the transmission system and hydraulic actuators, etc., which need to be removed by the cooling medium. However, since the power compartment of construction vehicles generally has a small space, many pipelines, and a limited layout, it is difficult to dissipate heat.

[0003] At present, the cooling system and engine of construction machinery are arranged in the machine shed, with poor ventilation and heat dissipation, high back pressure in the engine compartment, and the inability to discharge hot air smoothly, resulting in a high temperature in the machine shed. If the heat is not dissipated, it will affect the normal operation of the engine and hydraulic system. At the same time, in some extremely cold areas, due to the low ambient temperature, the temperature of the engine and hydraulic system is low when starting, and the coolant and hydraulic oil cannot reach the normal operating temperature range, which also affects the normal operation of the engine and hydraulic system and has an adverse effect on the performance of the engine and hydraulic system. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a shed cooling system, which can adjust the opening angle of the air intake grille and the rotation speed of the cooling fan according to the temperature of the engine coolant and the temperature of the hydraulic oil, so that the engine and the hydraulic system can operate within a normal temperature range.

[0005] The utility model is implemented according to the following technical solutions:

[0006] In a first aspect, the utility model provides a shed cooling system, comprising:

[0007] The hangar, which consists of the engine room connected to the pump room;

[0008] Adjustable air intake grilles, respectively arranged on the side panels of the engine compartment and the pump room;

[0009] Cooling fans are respectively arranged on the top plates of the engine compartment and the pump chamber;

[0010] The control component includes a detection module and a control module; the detection module is used to obtain the engine coolant temperature and the hydraulic oil temperature; the input end of the control module is electrically connected to the detection module, and the output end of the control module is electrically connected to the air intake grille and the cooling fan. The control module adjusts the air intake volume of the air intake grille and the air outlet volume of the cooling fan by receiving the temperature signal of the detection module.

[0011] In some embodiments, the adjustable air intake grille includes:

[0012] The air intake grille frame is fixed to the windows reserved in the engine compartment side panels and pump room side panels;

[0013] A plurality of air intake grille plates are evenly spaced and hinged from top to bottom in the air intake grille frame;

[0014] A connecting plate, hinged to the plurality of air intake grille plates;

[0015] The first power component is connected to the connecting plate and is used to drive the connecting plate to move up and down, thereby driving all the air intake grille plates to rotate around their hinges, thereby controlling the opening and closing angles of the air intake grilles.

[0016] In some embodiments, the first power component comprises:

[0017] A gear plate, fixedly connected to the connecting plate;

[0018] An air intake grille motor, wherein a gear is mounted on the output shaft thereof, and the gear is meshed with the gear plate;

[0019] An air intake grille switch controller is electrically connected to the air intake grille motor and the control module, and a switch instruction is input to the air intake grille switch controller through the control module to turn on or off the air intake grille motor;

[0020] The air intake grille opening and closing angle sensor is installed on the air intake grille and is electrically connected to the control module, and is used to feed back the detected opening and closing angle of the air intake grille plate to the control module.

[0021] In some embodiments, the heat dissipation fan comprises:

[0022] The cooling fan frame is fixed in the windows reserved in the engine compartment top plate and the pump room top plate;

[0023] At least one rotating fan blade is arranged in the heat dissipation fan frame;

[0024] The second power component is connected to the rotating blades and is used to drive the rotating blades to rotate.

[0025] In some embodiments, the second power component comprises:

[0026] A cooling fan motor is fixed on the cooling fan frame, and the rotating fan blades are fixed on the output shaft of the cooling fan motor;

[0027] A cooling fan switch controller is electrically connected to the cooling fan motor and the control module, and a switch instruction is input to the cooling fan switch controller through the control module to turn on or off the cooling fan motor;

[0028] The cooling fan speed sensor is installed on the cooling fan and electrically connected to the control module, and is used for feeding back the detected cooling fan speed to the control module.

[0029] In some embodiments, a cooling fan protection net for protecting rotating fan blades and the second power component is installed on the cooling fan frame.

[0030] In some embodiments, the engine compartment cooling fan and the pump chamber cooling fan share a cooling fan frame, which is installed on the top plate at the connection between the engine compartment and the pump chamber, and at least one group of rotating fan blades and a second power component are installed in the cooling fan frame above the engine compartment, and at least one group of rotating fan blades and a second power component are installed in the cooling fan frame above the pump chamber.

[0031] In some embodiments, the detection module includes:

[0032] The engine temperature sensor is arranged on the coolant circulation pipeline of the engine and is used to detect the temperature of the coolant;

[0033] The hydraulic oil temperature sensor is arranged on the circulation pipeline of the hydraulic oil and is used to detect the temperature of the hydraulic oil.

[0034] In some embodiments, the engine compartment is located on the right side of the hangar, and the pump room is located on the left side of the hangar; the air intake grille of the engine compartment is arranged on the right side panel of the engine compartment; the air intake grille of the pump room is arranged on the left side panel of the pump room; the cooling fan of the engine compartment is arranged on the upper left side of the engine compartment; the cooling fan of the pump room is arranged on the upper right side of the pump room.

[0035] In a first aspect, the utility model provides an engineering machinery, comprising the above-mentioned machine shed cooling system.

[0036] Beneficial effects of the utility model:

[0037] The heat dissipation system of the shed provided by the utility model can appropriately adjust the opening angle of the air intake grille and the speed of the heat dissipation fan according to the external environment temperature, the temperature measured by the hydraulic oil temperature sensor and the engine temperature sensor;

[0038] When warm-up is required in a low-temperature environment, the engine compartment air intake grille and the engine compartment cooling fan can be closed to allow the heat emitted by the engine to remain in the engine compartment to achieve a rapid warm-up effect. The pump room air intake grille and the pump room cooling fan can be closed to prevent the pump room temperature from dissipating outward, thereby increasing the hydraulic oil working temperature and quickly meeting the working temperature requirements. When the temperature in the shed is too high, the opening angles of the engine compartment air intake grille and the pump room air intake grille can be increased, and the speeds of the engine compartment cooling fan and the pump room cooling fan can be increased, thereby increasing the air intake and air outlet, allowing the engine to run at a suitable temperature, which is beneficial to improving the engine's working efficiency. At the same time, the hydraulic oil temperature can be quickly and effectively reduced, thereby improving the working efficiency of the hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0040] In the attached picture:

[0041] Figure 1 It is a schematic plan view of a heat dissipation system of a shed according to the utility model;

[0042] Figure 2 It is a three-dimensional schematic diagram of a shed cooling system of the utility model;

[0043] Figure 3 It is a schematic diagram of the partial structure of the air intake grille of the utility model;

[0044] Figure 4 This is a schematic diagram of the heat dissipation fan structure of the utility model;

[0045] Figure 5 The utility model is a schematic diagram of the control principle of a hangar heat dissipation system.

[0046] Figure identification: 1. Pump room air intake grille, 2. Pump room, 3. Pump, 4. Engine, 5. Engine compartment, 6. Engine compartment air intake grille, 7. Pump room cooling fan, 8. Engine compartment cooling fan, 1-1. Air intake grille frame, 1-2. Air intake grille plate, 1-3. Fasteners, 1-4. Gear plate, 1-5. Fasteners, 1-6. Connecting plate, 1-7. Air intake grille motor, 8-1. Cooling fan guard net, 8-2. Rotating fan blades, 8-3. Cooling fan frame, 8-4. Cooling fan motor.

[0047] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0049] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] like Figure 1 , Figure 2 , Figure 5 As shown, a hangar cooling system includes a hangar, an engine compartment air intake grille 6, a pump room air intake grille 1, an engine compartment cooling fan 8, a pump room cooling fan 7 and a control component; the hangar is composed of an engine compartment 5 connected to a pump room 2; the engine compartment air intake grille 6 is arranged on the right side plate of the engine compartment 5; the pump room air intake grille 1 is arranged on the left side plate of the pump room 2; the engine compartment cooling fan 8 is arranged at the upper left of the engine compartment 5; the pump room cooling fan 7 is arranged at the upper right of the pump room 2; the control component includes a detection module and a control module, the detection module is used to obtain the engine coolant temperature and the hydraulic oil temperature; the input end of the control module is electrically connected to the detection module, and the output end of the control module is electrically connected to the engine compartment air intake grille 6, the pump room air intake grille 1, the engine compartment cooling fan 8, and the pump room cooling fan 7, and the control module adjusts the air intake volume of the engine compartment air intake grille 6 and the pump room air intake grille 1 and the air outlet volume of the engine compartment cooling fan 8 and the pump room cooling fan 7 by receiving the temperature signal of the detection module.

[0052] Further solutions, such as Figure 5 As shown, the detection module includes an engine temperature sensor and a hydraulic oil temperature sensor; the engine temperature sensor is arranged on the coolant circulation pipeline of the engine to detect the temperature of the coolant; the hydraulic oil temperature sensor is arranged on the hydraulic oil circulation pipeline to detect the temperature of the hydraulic oil.

[0053] The above-mentioned engine compartment air intake grille and pump room air intake grille are further described below.

[0054] like Figure 3 As shown, the engine compartment air intake grille 6 includes an air intake grille frame 1-1, multiple air intake grille plates 1-2, a connecting plate 1-6 and a first power component; the air intake grille frame 1-1 is fixed in a window reserved on a side panel of the engine compartment 5; multiple air intake grille plates 1-2 are evenly spaced and hinged in the air intake grille frame 1-1 from top to bottom through fasteners 1-3; the connecting plate 1-6 is hinged to multiple air intake grille plates 1-2 through fasteners 1-5; the first power component is connected to the connecting plate 1-6, and is used to drive the connecting plate 1-6 to move up and down, and then drive all the air intake grille plates 1-2 to rotate around their hinges, so as to control the opening and closing angle of the engine compartment air intake grille 6.

[0055] The first power component includes a gear plate 1-4, an air intake grille motor 1-7, an engine compartment air intake grille switch controller, and an engine compartment air intake grille opening and closing angle sensor; the gear plate 1-4 is fixedly connected to the connecting plate 1-6; a gear is installed on the output shaft of the air intake grille motor 1-7, and the gear is meshed with the gear plate 1-4; the engine compartment air intake grille switch controller is electrically connected to the air intake grille motor 1-7 and the control module, and a switch instruction is input to the engine compartment air intake grille switch controller through the control module to turn on or off the air intake grille motor 1-7; the engine compartment air intake grille opening and closing angle sensor is installed on the engine compartment air intake grille 6 and is electrically connected to the control module, and is used to feed back the detected opening and closing angle of the engine compartment air intake grille plate 6 to the control module.

[0056] like Figure 3 As shown, the pump chamber air intake grille 1 includes an air intake grille frame 1-1, a plurality of air intake grille plates 1-2, a connecting plate 1-6 and a first power component; the air intake grille frame 1-1 is fixed in a window reserved in a side panel of the pump chamber 2; a plurality of air intake grille plates 1-2 are evenly spaced and hinged in the air intake grille frame 1-1 from top to bottom through fasteners 1-3; the connecting plate 1-6 is hinged to the plurality of air intake grille plates 1-2 through fasteners 1-5; the first power component is connected to the connecting plate 1-6, and is used to drive the connecting plate 1-6 to move up and down, and then drive all the air intake grille plates 1-2 to rotate around their hinges, so as to control the opening and closing angle of the pump chamber air intake grille 1.

[0057] The first power component includes a gear plate 1-4, an air intake grille motor 1-7, a pump chamber air intake grille switch controller, and a pump chamber air intake grille opening and closing angle sensor; the gear plate 1-4 is fixedly connected to the connecting plate 1-6; a gear is installed on the output shaft of the air intake grille motor 1-7, and the gear is meshed with the gear plate 1-4; the pump chamber air intake grille switch controller is electrically connected to the air intake grille motor 1-7 and the control module, and a switch instruction is input to the pump chamber air intake grille switch controller through the control module to turn on or off the air intake grille motor 1-7; the pump chamber air intake grille opening and closing angle sensor is installed on the pump chamber air intake grille 1 and is electrically connected to the control module, and is used to feed back the detected opening and closing angle of the pump chamber air intake grille plate 1 to the control module.

[0058] The above-mentioned engine compartment cooling fan and pump room cooling fan are further explained below.

[0059] like Figure 4 As shown, the engine compartment cooling fan 8 includes a cooling fan frame 8-3, at least one rotating blade 8-2 and a second power component; the cooling fan frame 8-3 is fixed in a window reserved on the top plate of the engine compartment 5; at least one rotating blade 8-2 is arranged in the cooling fan frame 8-3; the second power component is connected to the rotating blade 8-2, and is used to drive the rotating blade 8-2 to rotate.

[0060] The second power component includes a cooling fan motor 8-4, an engine compartment cooling fan switch controller, and an engine compartment cooling fan speed sensor; the cooling fan motor 8-4 is fixed on the cooling fan frame 8-3, and the rotating fan blades 8-2 are fixed on the output shaft of the cooling fan motor 8-4; the engine compartment cooling fan switch controller is electrically connected to the cooling fan motor 8-4 and the control module, and the control module inputs a switch instruction to the engine compartment cooling fan switch controller to turn on or off the cooling fan motor 8-4; the engine compartment cooling fan speed sensor is installed on the engine compartment cooling fan 8 and is electrically connected to the control module, and is used to feed back the detected speed of the engine compartment cooling fan 8 to the control module.

[0061] In a preferred solution, a cooling fan protection net 8-1 for protecting the rotating fan blades 8-2 and the second power component is installed on the cooling fan frame 8-3.

[0062] like Figure 4 As shown, the pump chamber cooling fan 7 includes a cooling fan frame 8-3, at least one rotating blade 8-2 and a second power component; the cooling fan frame 8-3 is fixed in a window reserved on the top plate of the pump chamber 2; at least one rotating blade 8-2 is arranged in the cooling fan frame 8-3; the second power component is connected to the rotating blade 8-2, and is used to drive the rotating blade 8-2 to rotate.

[0063] The second power component includes a cooling fan motor 8-4, a pump room cooling fan switch controller, and a pump room cooling fan speed sensor; the cooling fan motor 8-4 is fixed on the cooling fan frame 8-3, and the rotating fan blades 8-2 are fixed on the output shaft of the cooling fan motor 8-4; the pump room cooling fan switch controller is electrically connected to the cooling fan motor 8-4 and the control module, and the control module inputs a switch instruction to the pump room cooling fan switch controller to turn on or off the cooling fan motor 8-4; the pump room cooling fan speed sensor is installed on the pump room cooling fan 7 and is electrically connected to the control module, and is used to feed back the detected speed of the pump room cooling fan 7 to the control module.

[0064] In a preferred solution, a cooling fan protection net 8-1 for protecting the rotating fan blades 8-2 and the second power component is installed on the cooling fan frame 8-3.

[0065] A further solution is that the engine compartment cooling fan 8 and the pump chamber cooling fan 7 share a cooling fan frame 8-3, and the cooling fan frame 8-3 is installed on the top plate at the connection between the engine compartment 5 and the pump chamber 2. Three groups of rotating fan blades 8-2 and a second power component are installed in the cooling fan frame 8-3 above the engine compartment 5, and three groups of rotating fan blades 8-2 and a second power component are installed in the cooling fan frame 8-3 above the pump chamber 2.

[0066] The control principle of the above-mentioned hangar cooling system is further explained below.

[0067] like Figure 5 As shown, the control module is connected to the engine temperature sensor, the hydraulic oil temperature sensor, the engine compartment air intake grille switch controller, the pump room air intake grille switch controller, the engine compartment air intake grille opening and closing angle sensor, the pump room air intake grille opening and closing angle sensor, the engine compartment cooling fan switch controller, the pump room cooling fan switch controller, the engine compartment cooling fan speed sensor, and the pump room cooling fan speed sensor through a wiring harness.

[0068] According to the collected engine temperature sensor signals and hydraulic oil temperature sensor signals, the control module controls the engine compartment air intake grille switch controller, the pump room air intake grille switch controller, the engine compartment cooling fan switch controller, and the pump room cooling fan switch controller through the wiring harness.

[0069] The detection information of the engine compartment air intake grille opening and closing angle sensor and the pump room air intake grille opening and closing angle sensor is fed back to the control module through the wiring harness. The control module controls the engine compartment air intake grille switch controller and the pump room air intake grille switch controller based on the detection information, thereby controlling the opening and closing angles of the engine compartment air intake grille and the pump room air intake grille.

[0070] The detection information of the engine compartment cooling fan speed sensor and the pump room cooling fan speed sensor is fed back to the control module through the wiring harness. The control module controls the engine compartment cooling fan switch controller and the pump room cooling fan switch controller based on the detection information, thereby controlling the speed of the engine compartment cooling fan and the pump room cooling fan.

[0071] When warm-up is required in a low-temperature environment, the engine compartment air intake grille and the engine compartment cooling fan can be closed to allow the heat emitted by the engine to remain in the engine compartment to achieve a rapid warm-up effect. The pump room air intake grille and the pump room cooling fan can be closed to prevent the pump room temperature from dissipating outward, thereby increasing the hydraulic oil working temperature and quickly meeting the working temperature requirements. When the temperature in the shed is too high, the opening angles of the engine compartment air intake grille and the pump room air intake grille can be increased, and the speeds of the engine compartment cooling fan and the pump room cooling fan can be increased, thereby increasing the air intake and air outlet, allowing the engine to run at a suitable temperature, which is beneficial to improving the engine's working efficiency. At the same time, the hydraulic oil temperature can be quickly and effectively reduced, thereby improving the working efficiency of the hydraulic system.

[0072] The utility model also provides an engineering machine, comprising the above-mentioned machine shed heat dissipation system.

[0073] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0074] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0075] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A shed cooling system, characterized in that: include: The hangar, which consists of the engine room connected to the pump room; Adjustable air intake grilles, respectively arranged on the side panels of the engine compartment and the pump room; Cooling fans are respectively arranged on the top plates of the engine compartment and the pump chamber; Control components, including: A detection module, used to obtain engine coolant temperature and hydraulic oil temperature; A control module, whose input end is electrically connected to the detection module, and whose output end is electrically connected to the air intake grille and the cooling fan. The control module adjusts the air intake volume of the air intake grille and the air outlet volume of the cooling fan by receiving the temperature signal of the detection module.

2. A shed cooling system according to claim 1, characterized in that: The adjustable air intake grille comprises: The air intake grille frame is fixed to the windows reserved in the engine compartment side panels and pump room side panels; A plurality of air intake grille plates are evenly spaced and hinged from top to bottom in the air intake grille frame; A connecting plate, hinged to the plurality of air intake grille plates; The first power component is connected to the connecting plate and is used to drive the connecting plate to move up and down, thereby driving all the air intake grille plates to rotate around their hinges, thereby controlling the opening and closing angles of the air intake grilles.

3. A shed cooling system according to claim 2, characterized in that: The first power component comprises: A gear plate, fixedly connected to the connecting plate; An air intake grille motor, wherein a gear is mounted on the output shaft thereof, and the gear is meshed with the gear plate; An air intake grille switch controller is electrically connected to the air intake grille motor and the control module, and a switch instruction is input to the air intake grille switch controller through the control module to turn on or off the air intake grille motor; The air intake grille opening and closing angle sensor is installed on the air intake grille and is electrically connected to the control module, and is used to feed back the detected opening and closing angle of the air intake grille plate to the control module.

4. The hangar cooling system according to claim 1, characterized in that: The heat dissipation fan comprises: The cooling fan frame is fixed in the windows reserved in the engine compartment top plate and the pump room top plate; At least one rotating fan blade is arranged in the heat dissipation fan frame; The second power component is connected to the rotating blades and is used to drive the rotating blades to rotate.

5. A hangar cooling system according to claim 4, characterized in that: The second power component comprises: A cooling fan motor is fixed on the cooling fan frame, and the rotating fan blades are fixed on the output shaft of the cooling fan motor; A cooling fan switch controller is electrically connected to the cooling fan motor and the control module, and a switch instruction is input to the cooling fan switch controller through the control module to turn on or off the cooling fan motor; The cooling fan speed sensor is installed on the cooling fan and electrically connected to the control module, and is used for feeding back the detected cooling fan speed to the control module.

6. The hangar cooling system according to claim 4, characterized in that: The cooling fan frame is provided with a cooling fan protection net for protecting the rotating fan blades and the second power component.

7. The hangar cooling system according to claim 4, characterized in that: The engine compartment cooling fan and the pump chamber cooling fan share a cooling fan frame, which is installed on the top plate at the connection between the engine compartment and the pump chamber. At least one group of rotating fan blades and a second power component are installed in the cooling fan frame above the engine compartment, and at least one group of rotating fan blades and a second power component are installed in the cooling fan frame above the pump chamber.

8. The hangar cooling system according to claim 1, characterized in that: The detection module comprises: The engine temperature sensor is arranged on the coolant circulation pipeline of the engine and is used to detect the temperature of the coolant; The hydraulic oil temperature sensor is arranged on the circulation pipeline of the hydraulic oil and is used to detect the temperature of the hydraulic oil.

9. The hangar cooling system according to claim 1, characterized in that: The engine compartment is located on the right side of the shed, and the pump room is located on the left side of the shed; The air intake grille of the engine compartment is arranged on the right side plate of the engine compartment; the air intake grille of the pump room is arranged on the left side plate of the pump room; the cooling fan of the engine compartment is arranged on the upper left side of the engine compartment; the cooling fan of the pump room is arranged on the upper right side of the pump room.

10. An engineering machine, characterized in that: A machine shed cooling system comprising any one of claims 1 to 9.

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