Outdoor dehumidification and ventilation type motor cabinet for electric power engineering

Abstract

The invention discloses an outdoor dehumidification and ventilation type motor cabinet for electric power engineering, and relates to the technical field of electric power engineering, the outdoor dehumidification and ventilation type motor cabinet comprises a cabinet body, an air blower is fixedly mounted at the bottom of the side surface of the cabinet body, a rain cover is fixedly mounted at the top of the cabinet body, a check valve is arranged at the side surface of the cabinet body, and the check valve and the air blower are oppositely arranged; air inlet dehumidification mechanisms are fixedly installed on the two sides of the rain cover, a ventilation dehumidification mechanism is fixedly installed in the cabinet body and arranged between an air blower and a check valve, and a water receiving assembly is fixedly installed at the bottom of an inner cavity of the cabinet body and arranged under the ventilation dehumidification mechanism. The drainage end of the water receiving assembly penetrates through the cabinet body and extends to the outer side of the cabinet body, and the ventilation dehumidification mechanism and the air inlet dehumidification mechanism are arranged in a matched mode, so that the cabinet body is rapidly and effectively ventilated, air introduced into the cabinet body is dehumidified, and the environment in the motor cabinet is kept dry.

Description

Technical Field

[0001] The invention relates to the technical field of electric power engineering, in particular to an outdoor dehumidification and ventilation type motor cabinet of electric power engineering. Background Art

[0002] In the field of power engineering, the normal operation of equipment such as motor cabinets is crucial to ensure the stability of power supply. The electrical components inside the motor cabinets are sensitive to environmental humidity and ventilation conditions. Excessive humidity may cause short circuits, corrosion and other faults in the electrical components, which seriously affect the service life and operational reliability of power equipment. Many power engineering facilities need to place some equipment outdoors, such as some motor cabinets in substations and distribution rooms. The outdoor environment is complex and changeable. Rainwater can easily penetrate the cabinet and damage the internal components. In addition, the humidity fluctuates greatly under natural climatic conditions. Especially in humid seasons or regions, it is difficult for ordinary motor cabinets to effectively maintain a suitable humidity and ventilation environment inside. Traditional motor cabinets have many limitations in terms of protection. Some only have simple vents, but cannot dehumidify the incoming air, which cannot effectively solve the humidity problem. At the same time, there is a lack of effective preventive measures for air backflow that may occur during ventilation, making it difficult to fully ensure that the motor cabinet is always in a good operating environment in the outdoor environment. Summary of the invention

[0003] To achieve the above purpose, the present invention is implemented through the following technical scheme: an outdoor dehumidification and ventilation motor cabinet for electric power engineering, comprising: A cabinet body, wherein a cabinet door is rotatably connected to the front of the cabinet body, a warning sign is arranged on the outer surface of the cabinet door, a blower is fixedly installed at the bottom of the side of the cabinet body, and a rain shield is fixedly installed on the top of the cabinet body; The cabinet is the main frame of the entire motor cabinet, which is used to accommodate and protect the internal electrical components and other equipment, provide an installation basis for other components, and protect the internal components from the external environment. The cabinet door is connected to the front of the cabinet by rotation and can be opened and closed, which is convenient for inspection and maintenance inside the cabinet. The warning signs set on its outer surface can serve as a reminder for personnel; Check valve, which is arranged on the side of the cabinet and opposite to the blower, can prevent air backflow, ensure that the ventilation airflow flows from left to right, ensure the normal operation of the ventilation system, and prevent the external humid air from flowing back into the cabinet; An air inlet dehumidification mechanism, which is fixedly mounted on both sides of the rain shield, and penetrates the rain shield and extends to the outside thereof, and diverts the air entering the cabinet and removes some impurities and water vapor; A ventilation and dehumidification mechanism, which is arranged between the blower and the check valve, and ventilates and dehumidifies the air inside the cabinet, further ensuring ventilation and drying inside the cabinet; A water receiving assembly, which is fixedly mounted at the bottom of the inner cavity of the cabinet and is arranged directly below the ventilation and dehumidification mechanism. The water receiving assembly penetrates the cabinet and extends to the outside thereof. The water receiving assembly is used to collect condensed water and other liquids generated during the ventilation and dehumidification process and discharge them out of the cabinet to prevent the accumulation of water from affecting the internal components of the cabinet; Among them, the ventilation and dehumidification mechanism includes a ventilation pipe and a condenser pipe. The two ends of the ventilation pipe are connected with the blower and the check valve. The ventilation pipe is a tubular structure that is narrow in the middle and wide at both ends. This structure increases the air flow rate in the middle part and reduces the pressure. The condenser pipe is spirally arranged in the inner cavity of the cabinet, and the condenser pipe is detachably installed on the outer surface of the ventilation pipe. The condenser pipe is a copper pipe with good thermal conductivity. Since the surface temperature of the condenser pipe is relatively low, water vapor in the air condenses into water droplets when it is cold, thereby achieving the purpose of dehumidification. An air inlet pipe is fixedly installed on the top of the outer surface of the ventilation pipe. The air inlet pipe is used to introduce air in the cabinet to enter the ventilation pipe and further participate in the dehumidification and ventilation process.

[0004] Preferably, an air guide plate is fixedly installed inside the air inlet duct, the number of the air guide plates is two, and the two air guide plates are oppositely and obliquely arranged on both sides of the inner wall of the air inlet duct. Since the air flow rate in the middle part of the ventilation duct increases and the pressure decreases, the air in the cabinet is pressed into the air inlet duct and enters the ventilation duct. The air guide plate can prevent the gas in the ventilation duct from flowing back into the cabinet, thereby preventing the external humid air from flowing back into the cabinet.

[0005] Preferably, a dust cover is fixedly installed on the side of the cabinet, and the dust cover is arranged on the outer surface of the blower to prevent external dust, impurities and other particles from entering the interior of the blower. The outer surface of the dust cover is provided with ventilation grooves, and the ventilation grooves ensure that while providing dust protection for the blower, the normal ventilation function of the blower is not affected. The interior of the ventilation groove is fixedly connected with a dust block sheet, which can prevent dust from entering the blower.

[0006] Preferably, a ventilation baffle, a pad and a ventilation plate are fixedly installed in sequence inside the cabinet, the ventilation baffle is arranged between the rain shield and the cabinet, the ventilation baffle is arranged between the rain shield and the cabinet, the ventilation plate divides the inner cavity of the cabinet into two upper and lower chambers, the pad is arranged at the bottom of the upper chamber of the cabinet, and a fixing frame is fixedly installed on the top of the pad.

[0007] Preferably, the check valve includes a valve body, which is fixedly connected to one end of the ventilation pipe, and a first rotating shaft is fixedly connected to the interior of the valve body, and a second rotating shaft and a third rotating shaft are rotatably mounted on the outer surface of the first rotating shaft, and the number of the second rotating shaft and the third rotating shaft are both two, and a first valve flap and a second valve flap are fixedly mounted on the outer surfaces of the second rotating shaft and the third rotating shaft, respectively.

[0008] Preferably, a spring is sleeved on the outer surface of the first rotating shaft, and the spring is arranged between the second rotating shaft and the third rotating shaft, and the two extending ends of the spring are respectively squeezed and adapted with the first valve flap and the second valve flap, and a rubber sealing strip is fixedly connected between the first valve flap and the second valve flap.

[0009] Preferably, a sealing ring is fixedly installed on the inner wall of the valve body, and the sealing ring is sealed and adapted with the first valve flap and the second valve flap. During normal ventilation, the air pressure generated by the blower can push the valve flap to rotate around the first rotating shaft to open the channel and allow air to pass through; when backflow occurs, the valve flap will be closed under the elastic force of the spring to prevent air backflow, thereby effectively ensuring that the air in the ventilation system can only flow in one direction.

[0010] Preferably, the air inlet dehumidification mechanism includes a special-shaped air inlet pipe, which is fixedly installed on both sides of the inner wall of the rain shield, and both ends of the special-shaped air inlet pipe pass through the rain shield and extend to its outside, a U-shaped water guide groove is installed at the bottom of the special-shaped air inlet pipe, and the inner bending surface in the middle of the special-shaped air inlet pipe is fixedly connected to the air outlet pipe, and the special-shaped air inlet pipe is connected to the inner cavity of the rain shield through the air outlet pipe.

[0011] Preferably, a partition block is fixedly installed in the middle of the special-shaped air inlet duct, and the partition block diverts the incoming air. Magnesium particles with larger mass will be separated on the outer side of the special-shaped air inlet duct. When the air flows through the special-shaped air inlet duct and passes the bend, part of the water vapor hits the inner wall of the special-shaped air inlet duct due to inertia. The inner wall of the special-shaped air inlet duct is made of copper with good thermal conductivity. The inner wall temperature of the pipe is relatively low when air is entering. The water vapor condenses when it is cold, and the U-shaped water guide groove collects the generated condensed water. Since the two ends of the special-shaped air inlet duct are at different heights, the condensed water will flow from the higher end of the U-shaped water guide groove to the lower end, and then be discharged from the cabinet.

[0012] Preferably, the water receiving assembly includes a wedge-shaped water receiving plate, which is fixedly mounted on the bottom of the inner cavity of the cabinet, the drainage end of the wedge-shaped water receiving plate passes through the cabinet and extends to its outside, and a drainage groove is provided on the top of the wedge-shaped water receiving plate, and the condensed water condensed by the condenser tube flows out of the cabinet through the diversion effect of the drainage groove.

[0013] The present invention provides an outdoor dehumidification and ventilation motor cabinet for electric power engineering, which has the following beneficial effects: 1. The outdoor dehumidification and ventilation motor cabinet of the power project has a ventilation and dehumidification mechanism. The ventilation duct is a tubular structure that is narrow in the middle and wide at both ends. This structure increases the air flow rate in the middle part of the ventilation duct and reduces the pressure. The air in the cabinet is pressed into the air inlet duct and enters the ventilation duct. The air guide plate can prevent the humid gas in the ventilation duct from flowing back into the cabinet. The condenser is spirally arranged in the inner cavity of the cabinet, and the condenser is detachably installed on the outer surface of the ventilation duct. The condenser is a copper tube with good thermal conductivity. Since the surface temperature of the condenser is relatively low, the water vapor in the air condenses into water droplets when it is cold, thereby achieving the purpose of dehumidification. An air inlet duct is fixedly installed on the top of the outer surface of the ventilation duct. The air inlet duct is used to introduce the air in the cabinet to enter the ventilation duct and further participate in the dehumidification and ventilation process.

[0014] 2. The outdoor dehumidification and ventilation motor cabinet of the power project, through the setting of the air inlet dehumidification mechanism, the partition block fixedly installed in the middle of the special-shaped air inlet duct diverts the incoming air, and the larger mass of the impurities will be separated on the outside of the special-shaped air inlet duct. When the air flows through the special-shaped air inlet duct and passes the bend, part of the water vapor hits the inner wall of the special-shaped air inlet duct due to inertia. The inner wall of the special-shaped air inlet duct is made of copper with good thermal conductivity. The temperature of the inner wall of the pipe is relatively low when the air is entering. The water vapor condenses when it encounters cold. The U-shaped water guide groove collects the condensed water and discharges it out of the cabinet.

[0015] 3. The outdoor dehumidification and ventilation motor cabinet of the power project has a check valve. During normal ventilation, the air pressure can push the valve disc to rotate around the first axis to open the channel and allow air to pass through. When backflow occurs, the valve disc will close under the action of spring force to prevent air backflow, thereby effectively ensuring that the air in the ventilation system can only flow in one direction.

[0016] 4. The outdoor dehumidification ventilation motor cabinet of the power project is used to collect condensed water and other liquids generated during the ventilation and dehumidification process through the setting of water collection components, and discharge them out of the cabinet to prevent the accumulation of water from affecting the internal components of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a partial cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the structure of the ventilation and dehumidification mechanism of the present invention; Figure 5 It is a partial cross-sectional view of the ventilation and dehumidification mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the check valve of the present invention; Figure 7It is a partial structural schematic diagram of the check valve of the present invention; Figure 8 This is a schematic diagram of the structure of the air inlet dehumidification mechanism of the present invention; Fig. 9 It is a partial cross-sectional view of the air inlet and dehumidification mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the water receiving component of the present invention.

[0018] In the figure: 1. cabinet body; 2. cabinet door; 3. warning sign; 4. blower; 5. dust cover; 6. check valve; 61. valve body; 62. first rotating shaft; 63. second rotating shaft; 64. third rotating shaft; 65. first valve disc; 66. second valve disc; 67. spring; 68. rubber sealing strip; 69. sealing ring; 7. air inlet and dehumidification mechanism; 71. special-shaped air inlet pipe; 72. U-shaped water guide groove; 73. air outlet pipe; 74. partition block; 8. ventilation and dehumidification mechanism; 81. ventilation pipe; 82. condensation pipe; 83. air inlet pipe; 84. air guide plate; 9. water receiving assembly; 91. wedge-shaped water receiving plate; 92. water leakage groove; 10. fixing frame; 11. pad; 12. ventilation partition; 13. ventilation plate; 14. ventilation groove; 15. dust shield; 16. rain shield. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0020] The first embodiment, as Figures 1 to 3 As shown, the present invention provides a technical solution: an outdoor dehumidification and ventilation motor cabinet for electric power engineering, comprising a cabinet body 1, a cabinet door 2 is rotatably connected to the front of the cabinet body 1, a warning sign 3 is arranged on the outer surface of the cabinet door 2, and a rain shield 16 is fixedly installed on the top of the cabinet body 1; The cabinet 1 is the main frame of the entire motor cabinet, used to accommodate and protect the internal electrical components and other equipment, provide an installation basis for other components, and protect the internal components from the external environment; A dust cover 5 is fixedly installed on the side of the cabinet 1. The dust cover 5 is arranged on the outer surface of the blower 4 to prevent external dust, impurities and other particles from entering the blower 4. A ventilation groove 14 is opened on the outer surface of the dust cover 5. The ventilation groove 14 ensures that while providing dust protection for the blower 4, it does not affect the normal ventilation function of the blower 4. A dust shield 15 is fixedly connected to the inside of the ventilation groove 14. The dust shield 15 can prevent dust from entering the blower 4 and affecting its operation.

[0021] The interior of the cabinet 1 is fixedly installed with a ventilation baffle 12, a pad 11 and a ventilation plate 13 in sequence. The ventilation baffle 12 is arranged between the rain shield 16 and the cabinet 1. The ventilation plate 13 divides the inner cavity of the cabinet 1 into two upper and lower chambers. The pad 11 is arranged at the bottom of the upper chamber of the cabinet 1. A fixing frame 10 is fixedly installed on the top of the pad 11 for fixing and installing internal electrical components.

[0022] The second embodiment is based on the first embodiment. Figures 1 to 9 As shown, the air inlet dehumidification mechanism 7 is fixedly mounted on both sides of the inner wall of the rain shield 16, and the air inlet dehumidification mechanism 7 penetrates the rain shield 16 and extends to the outside thereof. The air inlet dehumidification mechanism 7 diverts the air entering the cabinet 1, removes some impurities and water vapor, and reduces the humidity of the air entering the cabinet 1; The air inlet dehumidification mechanism 7 includes a special-shaped air inlet pipe 71, which is fixedly installed on both sides of the inside of the rain shield 16, and both ends of the special-shaped air inlet pipe 71 penetrate the rain shield 16 and extend to the outside thereof, a U-shaped water guide groove 72 is installed at the bottom of the special-shaped air inlet pipe 71, and an air outlet pipe 73 is fixedly connected to the inner bending surface in the middle of the special-shaped air inlet pipe 71, and the special-shaped air inlet pipe 71 is connected to the inner cavity of the rain shield 16 through the air outlet pipe 73; A partition block 74 is fixedly installed in the middle of the special-shaped air inlet pipe 71. The partition block 74 diverts the incoming air, and the larger impurities will be separated on the outer side of the special-shaped air inlet pipe 71. When the air flows through the special-shaped air inlet pipe 71 and passes the bend, part of the water vapor hits the inner wall of the special-shaped air inlet pipe 71 due to inertia. The inner wall of the special-shaped air inlet pipe 71 is made of copper with good thermal conductivity. When air is introduced, the temperature of the inner wall of the special-shaped air inlet pipe 71 is relatively low, and the water vapor condenses when it encounters cold. The U-shaped water guide groove 72 collects the generated condensed water and discharges it from the cabinet 1.

[0023] The third embodiment is based on the first and second embodiments. Figures 1 to 10 As shown, a blower 4 is fixedly installed at the bottom of the side of the cabinet 1, and the blower 4 is used to generate airflow to promote air flow inside the cabinet 1 to achieve ventilation function, ensure the renewal and circulation of air inside the cabinet 1, and help maintain suitable environmental conditions; The ventilation and dehumidification mechanism 8 is arranged between the blower 4 and the check valve 6. The ventilation and dehumidification mechanism 8 ventilates and dehumidifies the air inside the cabinet 1, further ensuring ventilation and drying inside the cabinet 1; The ventilation and dehumidification mechanism 8 includes a ventilation pipe 81 and a condensation pipe 82. The ventilation pipe 81 runs through the cabinet 1 and extends to both sides thereof, and both ends of the ventilation pipe 81 are connected to the blower 4 and the check valve 6. The ventilation pipe 81 is a tubular structure that is narrow in the middle and wide at both ends. This structure increases the air flow rate in the middle part and reduces the pressure. The condensation pipe 82 is spirally arranged in the inner cavity of the cabinet 1, and the condensation pipe 82 is detachably installed on the outer surface of the ventilation pipe 81. The condensation pipe 82 is a copper pipe with good thermal conductivity. Since the surface temperature of the condensation pipe 82 is relatively low, water vapor condenses into water droplets when it is cold, thereby achieving the purpose of dehumidification. An air inlet pipe 83 is fixedly installed on the top of the outer surface of the ventilation pipe 81. The air inlet pipe 83 is used to introduce air into the cabinet 1 so that it enters the ventilation pipe 81 and further participates in the dehumidification and ventilation process. An air guide plate 84 is fixedly installed inside the air inlet pipe 83. There are two air guide plates 84, and both of them are tilted downward. As the air velocity in the middle part of the ventilation pipe 81 increases and the pressure decreases, the air in the cabinet 1 is pressed into the air inlet pipe 83 and enters the ventilation pipe 81. The air guide plate 84 can prevent the gas in the ventilation pipe 81 from flowing back into the cabinet 1, and prevent the external humid air from flowing back into the cabinet 1. The water receiving assembly 9 is fixedly mounted at the bottom of the inner cavity of the cabinet 1, and is arranged directly below the ventilation and dehumidification mechanism 8. The drainage end of the water receiving assembly 9 penetrates the cabinet 1 and extends to the outside thereof. The water receiving assembly 9 is used to collect condensed water and other liquids generated during the ventilation and dehumidification process, and discharge them from the cabinet 1 to prevent the accumulation of water from affecting the internal components of the cabinet 1. The water receiving assembly 9 includes a wedge-shaped water receiving plate 91, which is fixedly installed at the bottom of the inner cavity of the cabinet 1. The wedge-shaped water receiving plate 91 passes through the cabinet 1 and extends to its outside. A water leakage groove 92 is provided on the top of the wedge-shaped water receiving plate 91. The condensed water condensed by the condensation tube 82 flows out of the cabinet 1 through the diversion effect of the water leakage groove 92.

[0024] The check valve 6 is arranged on the side of the cabinet 1, and the check valve 6 is arranged opposite to the blower 4. The check valve 6 can prevent air backflow, ensure that the ventilation airflow realizes unidirectional flow, ensure the normal operation of the ventilation system, and prevent the external humid air from flowing back into the cabinet 1; The check valve 6 includes a valve body 61, which is fixedly connected to one end of the ventilation pipe 81. A first rotating shaft 62 is fixedly connected inside the valve body 61. A second rotating shaft 63 and a third rotating shaft 64 are rotatably mounted on the outer surface of the first rotating shaft 62. The number of the second rotating shaft 63 and the third rotating shaft 64 are both two. A first valve flap 65 and a second valve flap 66 are fixedly mounted on the outer surfaces of the second rotating shaft 63 and the third rotating shaft 64, respectively. The two second rotating shafts 63 and the two third rotating shafts 64 are respectively arranged at both ends of the first valve flap 65 and the second valve flap 66. A spring 67 is sleeved on the outer surface of the first rotating shaft 62. The spring 67 is arranged between the second rotating shaft 63 and the third rotating shaft 64. The two extending ends of the spring 67 are respectively pressed and adapted with the first valve flap 65 and the second valve flap 66. A rubber sealing strip 68 is fixedly connected between the first valve flap 65 and the second valve flap 66. A sealing ring 69 is fixedly installed on the inner wall of the valve body 61, and the sealing ring 69 is sealed and adapted with the first valve flap 65 and the second valve flap 66. During normal ventilation, the air pressure provided by the blower 4 can push the valve flap to rotate around the first rotating shaft 62 to open the channel, allowing air to pass through in a predetermined direction; when backflow occurs, under the action of spring force, the valve flap will close to prevent air backflow, thereby effectively ensuring that air in the ventilation system can only flow in one direction.

[0025] When in use, the blower 4 is turned on, and the outside air enters the dust cover 5 through the ventilation slot 14. The blower 4 generates airflow, which causes the air to pass into the ventilation pipe 81. The structure of the ventilation pipe 81 being narrow in the middle and wide at both ends increases the air flow rate in the middle part and reduces the pressure. The air in the cabinet 1 is pressed into the air inlet pipe 83 and enters the ventilation pipe 81. The air guide plate 84 can prevent the gas in the ventilation pipe 81 from flowing back into the cabinet 1. The condensation pipe 82 is spirally arranged on the outer surface of the ventilation pipe 81. The condensation pipe 82 condenses the water vapor in the air into water droplets when it is cold, thereby achieving the purpose of dehumidification. The wedge-shaped water receiving plate 91 collects the condensed water generated by the condensation pipe 82 and discharges it out of the cabinet 1 through the water leakage groove 92 to prevent the accumulated water from affecting the internal components of the cabinet 1. At this time, since the air in the cabinet 1 is sucked into the ventilation pipe 81, negative pressure is formed in the cabinet, and the outside air enters the special-shaped air inlet pipe 71 and enters the cabinet 1 from the air outlet pipe 73. The partition block 74 diverts the incoming air, and the large-mass impurity particles will be separated on the outside of the special-shaped air inlet pipe 71. When the air flows through the special-shaped air inlet pipe 71 and passes through the bend, part of the water vapor hits the inner wall of the special-shaped air inlet pipe 71 due to inertia. The inner wall of the special-shaped air inlet pipe 71 is made of copper with good thermal conductivity. When the air enters, the temperature of the inner wall of the pipe is relatively low, and the water vapor condenses when it encounters cold. The U-shaped water guide trough 72 collects the generated condensed water and discharges it from the cabinet 1. During normal ventilation, the air pressure generated by the blower 4 can push the valve flap to rotate around the first rotating shaft 62 to open the channel and allow air to pass through; when backflow occurs, under the action of the spring force, the valve flap will close to prevent air backflow, thereby effectively ensuring that the air in the ventilation system can only flow in one direction.

[0026] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An outdoor dehumidification and ventilation motor cabinet for electric power engineering, characterized in that: include: A cabinet body (1), wherein a cabinet door (2) is rotatably connected to the front of the cabinet body (1), a warning sign (3) is provided on the outer surface of the cabinet door (2), a blower (4) is fixedly mounted on the bottom of the side of the cabinet body (1), and a rain shield (16) is fixedly mounted on the top of the cabinet body (1); a check valve (6), wherein the check valve (6) is arranged on a side of the cabinet (1), and the check valve (6) is arranged opposite to the blower (4); An air inlet and dehumidification mechanism (7), wherein the air inlet and dehumidification mechanism (7) is fixedly mounted on both sides of the interior of the rain shield (16), and the air inlet and dehumidification mechanism (7) penetrates the rain shield (16) and extends to the outside thereof; A ventilation and dehumidification mechanism (8), wherein the ventilation and dehumidification mechanism (8) is arranged between the blower (4) and the check valve (6); A water receiving assembly (9), the water receiving assembly (9) being fixedly mounted at the bottom of the inner cavity of the cabinet (1), and the water receiving assembly (9) being arranged directly below the ventilation and dehumidification mechanism (8), and the drainage end of the water receiving assembly (9) passing through the cabinet (1) and extending to the outside thereof; The ventilation and dehumidification mechanism (8) comprises a ventilation pipe (81) and a condensation pipe (82); both ends of the ventilation pipe (81) are connected to the blower (4) and the check valve (6); the condensation pipe (82) is spirally arranged in the inner cavity of the cabinet (1); and the condensation pipe (82) is detachably mounted on the outer surface of the ventilation pipe (81); and an air inlet pipe (83) is fixedly mounted on the top of the outer surface of the ventilation pipe (81).

2. The outdoor dehumidification and ventilation motor cabinet for electric power engineering according to claim 1, characterized in that: An air guide plate (84) is fixedly installed inside the air inlet pipe (83), the number of the air guide plates (84) is two, and the two air guide plates (84) are arranged oppositely and obliquely on both sides of the inner wall of the air inlet pipe (83).

3. The outdoor dehumidification and ventilation motor cabinet for electric power engineering according to claim 1 is characterized in that: A dust cover (5) is fixedly mounted on the side of the cabinet (1); the dust cover (5) is arranged on the outer surface of the blower (4); a ventilation slot (14) is provided on the outer surface of the dust cover (5); a dust shield (15) is fixedly connected to the interior of the ventilation slot (14).

4. The outdoor dehumidification and ventilation motor cabinet of an electric power project according to claim 3, characterized in that: A ventilation baffle (12), a pad (11) and a ventilation plate (13) are fixedly mounted in sequence inside the cabinet (1); the ventilation baffle (12) is arranged between the rain shield (16) and the cabinet (1); the ventilation plate (13) divides the inner cavity of the cabinet (1) into two upper and lower chambers; the pad (11) is arranged at the bottom of the upper chamber of the cabinet (1); and a fixing frame (10) is fixedly mounted on the top of the pad (11).

5. The outdoor dehumidification and ventilation motor cabinet of an electric power project according to claim 4, characterized in that: The check valve (6) comprises a valve body (61), the valve body (61) being fixedly connected to one end of a ventilation pipe (81), a first rotating shaft (62) being fixedly connected inside the valve body (61), a second rotating shaft (63) and a third rotating shaft (64) being rotatably mounted on the outer surface of the first rotating shaft (62), the number of the second rotating shaft (63) and the number of the third rotating shaft (64) being two, and a first valve flap (65) and a second valve flap (66) being fixedly mounted on the outer surfaces of the second rotating shaft (63) and the third rotating shaft (64), respectively.

6. The outdoor dehumidification and ventilation motor cabinet of an electric power project according to claim 5, characterized in that: A spring (67) is sleeved on the outer surface of the first rotating shaft (62), and the spring (67) is arranged between the second rotating shaft (63) and the third rotating shaft (64). Two extended ends of the spring (67) are respectively pressed and matched with the first valve flap (65) and the second valve flap (66). A rubber sealing strip (68) is fixedly connected between the first valve flap (65) and the second valve flap (66).

7. The outdoor dehumidification and ventilation motor cabinet of an electric power project according to claim 5, characterized in that: A sealing ring (69) is fixedly mounted on the inner wall of the valve body (61), and the sealing ring (69) is sealingly adapted to the first valve flap (65) and the second valve flap (66).

8. The outdoor dehumidification and ventilation motor cabinet for electric power engineering according to claim 1, characterized in that: The air inlet dehumidification mechanism (7) comprises a special-shaped air inlet pipe (71), the special-shaped air inlet pipe (71) being fixedly mounted on both sides of the inner wall of the rain shield (16), and both ends of the special-shaped air inlet pipe (71) passing through the rain shield (16) and extending to the outside thereof, a U-shaped water guide groove (72) being mounted on the bottom of the special-shaped air inlet pipe (71), an inner bending surface in the middle of the special-shaped air inlet pipe (71) being fixedly connected to an air outlet pipe (73), and the special-shaped air inlet pipe (71) being connected to the inner cavity of the rain shield (16) via the air outlet pipe (73).

9. The outdoor dehumidification and ventilation motor cabinet of an electric power project according to claim 8, characterized in that: A partition block (74) is fixedly installed in the middle of the special-shaped air inlet pipe (71).

10. The outdoor dehumidification and ventilation motor cabinet of an electric power project according to claim 1, characterized in that: The water receiving assembly (9) comprises a wedge-shaped water receiving plate (91), the wedge-shaped water receiving plate (91) being fixedly mounted on the bottom of the inner cavity of the cabinet (1), the drainage end of the wedge-shaped water receiving plate (91) passing through the cabinet (1) and extending to the outside thereof, and a water leakage groove (92) being provided on the top of the wedge-shaped water receiving plate (91).

Images