High-voltage frequency converter heat dissipation ventilation pipeline and heat dissipation system

Abstract

The utility model relates to the technical field of frequency conversion equipment for waterworks, and discloses a high-voltage frequency converter heat dissipation ventilation pipeline and a heat dissipation system, which comprise a plurality of pipe groups forming a complete continuous channel, detachable connecting pieces for connecting the adjacent pipe groups, and hoisting assemblies, each pipe group is a heat insulation pipe; the detachable connecting piece is composed of two connecting fasteners which are in mirror image with each other and have F-shaped cross sections, and after the two connecting fasteners are connected, glass cement is applied to the outside for sealing; the hoisting assembly comprises an upper mounting plate, a lower mounting plate and a connecting rope, the upper mounting plate and the lower mounting plate are connected with the upper side and the lower side of the heat dissipation ventilation pipeline respectively, and the connecting rope is connected with the upper mounting plate and the lower mounting plate and used for achieving hoisting of the hoisting assembly and the machine room. The ventilation pipeline can effectively prevent heat led out from the high-voltage frequency converter from being dissipated into a machine room and is convenient to install on site.

Description

Technical Field

[0001] This utility model relates to the technical field of frequency converter equipment for waterworks, and in particular to a heat dissipation and ventilation duct and heat dissipation system for a high-voltage frequency converter. Background Technology

[0002] Variable frequency water pump units are the pump loads used by waterworks to ensure water supply. They employ high-voltage frequency converters for speed control. During the high-voltage voltage transformation process, the high-voltage frequency converter generates significant heat. This heat is typically dissipated through built-in cooling and ventilation systems. However, this heat can easily lead to excessively high temperatures in the machine room, often necessitating the installation of air conditioning or air-water cooling systems. This results in high energy consumption and poor energy efficiency, while energy conservation and economical equipment operation are essential trends for sustainable development. Utility Model Content

[0003] The purpose of this utility model is to propose a high-voltage frequency converter heat dissipation and ventilation duct that effectively prevents the heat drawn from the high-voltage frequency converter from dissipating into the machine room and is easy to install on site, thereby providing at least a beneficial option or creating conditions for solving one or more technical problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] A high-voltage frequency converter heat dissipation and ventilation duct includes multiple pipe groups forming a complete continuous channel, detachable connectors connecting adjacent pipe groups, and a hoisting assembly. Each pipe group is an insulated pipe. The detachable connector consists of two mirror-image connecting fasteners with an F-shaped cross-section. The ends of adjacent pipe groups are respectively snapped and fixed in corresponding F-shaped grooves. Grooves and connecting holes are provided on the connecting surfaces of the two connecting fasteners. The grooves are used to install sealing gaskets, and the connecting holes cooperate with bolts to achieve detachable connection and fixation of the two connecting fasteners. After the two connecting fasteners are connected, they are sealed with glass glue. The hoisting assembly includes an upper mounting plate, a lower mounting plate, and connecting ropes. The upper mounting plate and the lower mounting plate are respectively connected to the upper and lower sides of the heat dissipation and ventilation duct. The connecting ropes are connected to the upper mounting plate and the lower mounting plate and are used to hoist the hoisting assembly to the machine room.

[0006] More preferably, the hoisting assembly is in multiple sets, each corresponding to one of the pipe groups.

[0007] More preferably, shock-absorbing pads are provided between the upper mounting plate and the upper side of the heat dissipation and ventilation duct, and between the lower mounting plate and the lower side of the heat dissipation and ventilation duct.

[0008] More preferably, the pipe assembly is a stainless steel pipe or an aluminum alloy pipe, and the outer surface of the pipe assembly is wrapped with heat insulation cotton.

[0009] More preferably, sealing and shock-absorbing rubber parts are filled at the wall penetration points of the heat dissipation and ventilation ducts.

[0010] More preferably, a removable protective net is installed at the outlet of the heat dissipation and ventilation duct.

[0011] On the other hand, this utility model also provides a high-voltage frequency converter heat dissipation system, including a computer room and a high-voltage frequency converter cabinet installed in the computer room. An air inlet channel and an air outlet channel are respectively provided on two opposite sides of the computer room. The air inlet channel is set lower than the air outlet channel. An air inlet located on the lower side and an air outlet located on the top of the high-voltage frequency converter cabinet are provided. A cabinet top fan is installed on the air outlet. The high-voltage frequency converter heat dissipation ventilation duct described above is connected between the cabinet top fan and the air outlet channel to send the hot air in the high-voltage frequency converter cabinet to the outside of the computer room.

[0012] More preferably, the air outlet of the high-voltage frequency converter heat dissipation and ventilation duct and the air inlet of the air inlet channel are both inclined downwards, and a filter screen is installed on the air inlet channel.

[0013] More preferably, the air inlet is directly opposite the air inlet channel.

[0014] More preferably, the high-voltage frequency converter cabinet includes a transformer cabinet and a power unit cabinet, the transformer cabinet and the power unit cabinet each have independent air ducts, and a corresponding cabinet top fan is provided for each air duct.

[0015] The technical solution provided by this utility model has at least the following technical effects or advantages.

[0016] This utility model provides a high-voltage frequency converter heat dissipation and ventilation duct, which is assembled from segmented pipe assemblies, facilitating processing, transportation, installation, and disassembly. It can be customized to meet specific site conditions, effectively solving the problem of high-voltage frequency converters releasing heat outdoors. Simultaneously, combined with anti-vibration sealing structures such as gaskets and silicone sealant, the overall connection is tight, preventing hot air from escaping through gaps, achieving the same effect as a one-piece duct, but significantly reducing production, transportation, and installation costs. Furthermore, multiple fixing designs ensure the duct's stability, and multiple vibration damping designs prevent noise, loosening, or deformation caused by vibration.

[0017] This utility model provides a high-voltage frequency converter cooling system. Both the ambient temperature in the computer room and the internal temperature of the high-voltage frequency converter cabinet are cooled by introducing outdoor air. This is a non-sealed cooling system that does not rely on air conditioning or air-water cooling devices, does not increase the indoor temperature, and ensures the ambient temperature is maintained below 40℃. This utility model is suitable for relatively clean environments, meets the operational requirements of variable frequency water pump units in waterworks, has low cost, high reliability, good heat dissipation, and better energy-saving performance during operation. Simultaneously, by installing filters in the air inlet duct and protective nets in the air outlet duct, it can prevent insects such as mosquitoes and rats from entering and filter dust, ensuring air quality in the computer room. Attached Figure Description

[0018] Figure 1 The diagram shows the structure of the heat dissipation and ventilation duct of the high-voltage frequency converter in this utility model.

[0019] Figure 2 The diagram shown is a structural schematic of the detachable connector.

[0020] Figure 3 The diagram shows the application of heat dissipation and ventilation ducts in high-voltage frequency converters.

[0021] Figure 4 The diagram shows the outdoor end of the heat dissipation and ventilation duct of a high-voltage frequency converter.

[0022] Figure 5 The diagram shown is a structural schematic of the high-voltage frequency converter heat dissipation system in this utility model.

[0023] Explanation of the reference numerals in the attached figures.

[0024] 1: Pipe assembly, 2: Detachable connector, 3: Lifting assembly, 4: Foam adhesive, 5: Protective net, 6: Machine room, 7: High voltage frequency converter cabinet, 8: Air inlet duct, 9: Air outlet duct, 10: Air inlet, 11: Cabinet top fan, 12: Filter screen.

[0025] 2-1: Groove; 2-2: Connecting hole.

[0026] 3-1: Upper mounting plate; 3-2: Lower mounting plate; 3-3: Connecting rope. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings, making the technical solution and beneficial effects of this utility model clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] Additional aspects and advantages of this invention will become apparent in the following description or may be learned by practice of this invention.

[0029] Reference Figure 1 , Figure 2 As shown, a high-voltage frequency converter heat dissipation and ventilation duct includes multiple pipe groups 1 forming a complete continuous channel, detachable connectors 2 connecting adjacent pipe groups 1, and a hoisting assembly 3; each pipe group 1 is an insulated pipe, and the detachable connector 2 consists of two mirror-image connecting fasteners with an F-shaped cross-section. The ends of adjacent pipe groups 1 are respectively snapped into corresponding F-shaped grooves and fixed by air nails. A groove 2-1 and a connecting hole 2-2 are respectively provided on the connecting surface of the two connecting fasteners. The groove 2-1 is used to install a seal. The connecting hole 2-2 is used in conjunction with bolts to achieve a detachable connection and fixation of the two connecting fasteners. After the two connecting fasteners are connected, glass glue is applied to the outside for further sealing. The hoisting assembly 3 includes an upper mounting plate 3-1, a lower mounting plate 3-2, and a connecting rope 3-3. The upper mounting plate 3-1 and the lower mounting plate 3-2 are respectively connected to the upper and lower sides of the heat dissipation and ventilation duct. The connecting rope 3-3 is connected to the upper mounting plate 3-1 and the lower mounting plate 3-2 and is used to hoist the hoisting assembly 3 to the machine room.

[0030] Specifically, the hoisting method can be to fix it to the ceiling using existing known expansion bolts and tie rods. Preferably, soft pads are also provided between the upper mounting plate 3-1 and the upper side of the heat dissipation and ventilation duct, and between the lower mounting plate 3-2 and the lower side of the heat dissipation and ventilation duct. The soft pads can better reduce the noise caused by vibration.

[0031] In this embodiment, the pipe assembly 1 is preferably made of stainless steel, and the outer surface of the stainless steel pipe is wrapped with heat insulation cotton to enhance the heat insulation effect and prevent heat in the heat dissipation ventilation duct from dissipating into the machine room through the side wall of the duct. Obviously, those skilled in the art can also use other known or future-featured insulated pipe structures according to different actual needs, such as forming an insulation layer or insulation cavity inside the pipe wall, etc. The material of the pipe assembly 1 can also be a lightweight, high-strength aluminum-zinc alloy, etc.

[0032] Combination Figure 3 As shown, foam adhesive 4 is also filled at the wall penetration point of the heat dissipation and ventilation duct to enhance the sealing performance and reduce vibration wear. In some embodiments, the foam adhesive 4 can be other forms of sealant that are currently known or can be realized in the future, as long as it can achieve the purpose of sealing and soft contact.

[0033] Combination Figure 4As shown, a detachable protective net 5 is also installed at the outlet of the heat dissipation and ventilation duct to prevent mosquitoes, rats and other animals from entering the duct, ensuring the smooth flow and hygiene of the duct.

[0034] Refer to Figures 3-5 As shown, a high-voltage frequency converter heat dissipation system includes a computer room 6 and a high-voltage frequency converter cabinet 7 installed in the computer room 6. An air inlet channel 8 and an air outlet channel 9 are respectively provided on two opposite sides of the computer room 6. The air inlet channel 8 is positioned lower than the air outlet channel 9. The high-voltage frequency converter cabinet 7 has an air inlet 10 located on the lower side and an air outlet located on the top. A cabinet-top fan 11 is installed on the air outlet. A high-voltage frequency converter heat dissipation ventilation duct, as described above, connects the cabinet-top fan 11 and the air outlet channel 9 to deliver hot air from the high-voltage frequency converter cabinet 7 to the outside of the computer room. The air outlet of the high-voltage frequency converter heat dissipation ventilation duct and the air inlet of the air inlet channel 8 are both inclined downwards. A filter screen 12 is installed on the air inlet channel 8.

[0035] To better achieve heat dissipation of the high-voltage inverter cabinet 6, in this embodiment, it is preferable that the air inlet 10 and the air inlet channel 8 are directly opposite each other, so that the cold air entering the computer room 1 can enter the high-voltage inverter cabinet 2 more smoothly.

[0036] In this embodiment, the high-voltage frequency converter cabinet 6 includes a transformer cabinet and a power unit cabinet. The transformer cabinet and the power unit cabinet each have independent air ducts, and a corresponding top fan is provided for each air duct. By setting independent air ducts, hot air exchange between the two can be avoided, thereby ensuring the air-cooling effect of the transformer cabinet and the power unit cabinet.

[0037] This embodiment provides a high-voltage frequency converter cooling system. The ambient temperature in the machine room 6 and the temperature inside the high-voltage frequency converter cabinet 7 are both cooled by introducing outdoor air. This is a non-sealed cooling system that does not rely on air conditioning or air-water cooling devices, does not increase the indoor temperature, and ensures the ambient temperature is maintained below 40℃. This invention is suitable for relatively clean environments, meets the operational requirements of waterworks variable frequency pump units, has low cost, high reliability, good heat dissipation, and better energy-saving performance. Simultaneously, by installing a filter screen 12 on the air inlet duct 8 and a protective net 5 on the air outlet duct, it can prevent insects such as mosquitoes and rats from entering and filter dust, ensuring the air quality in the machine room 6.

[0038] This utility model provides a high-voltage frequency converter heat dissipation and ventilation duct, which is assembled from segmented pipe assemblies, facilitating processing, transportation, installation, and disassembly. It can be customized to meet specific site conditions, effectively solving the problem of high-voltage frequency converters releasing heat outdoors. Simultaneously, combined with anti-vibration sealing structures such as gaskets and silicone sealant, the overall connection is tight, preventing hot air from escaping through gaps, achieving the same effect as a one-piece duct, but significantly reducing production, transportation, and installation costs. Furthermore, multiple fixing designs ensure the duct's stability, and multiple vibration damping designs prevent noise, loosening, or deformation caused by vibration.

[0039] It should also be noted that in the description of this utility model, directional terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. They should not be construed as limiting the specific protection scope of this utility model.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model, which should be defined by the claims and their equivalents. Parts not described in the specific embodiments are all prior art or common knowledge.

Claims

1. A heat dissipation and ventilation duct for a high-voltage frequency converter, characterized in that, The system includes multiple pipe assemblies forming a complete continuous channel, detachable connectors connecting adjacent pipe assemblies, and a hoisting assembly. Each pipe assembly is an insulated pipe. The detachable connector consists of two mirror-image connecting fasteners with an F-shaped cross-section. The ends of adjacent pipe assemblies are respectively snapped into corresponding F-shaped grooves. The connecting surfaces of the two fasteners are respectively provided with grooves and connecting holes. The grooves are used to install sealing gaskets, and the connecting holes cooperate with bolts to achieve detachable connection and fixation of the two fasteners. After the two fasteners are connected, they are sealed with glass glue. The hoisting assembly includes an upper mounting plate, a lower mounting plate, and connecting ropes. The upper mounting plate and the lower mounting plate are respectively connected to the upper and lower sides of the heat dissipation and ventilation ducts. The connecting ropes are connected to the upper mounting plate and the lower mounting plate and are used to hoist the hoisting assembly to the machine room.

2. The high-voltage frequency converter heat dissipation and ventilation duct according to claim 1, characterized in that, The hoisting components are in multiple sets, each corresponding to one of the pipe groups.

3. The high-voltage frequency converter heat dissipation and ventilation duct according to claim 1, characterized in that, Shock-absorbing pads are provided between the upper mounting plate and the upper side of the heat dissipation and ventilation duct, and between the lower mounting plate and the lower side of the heat dissipation and ventilation duct.

4. A high-voltage frequency converter heat dissipation and ventilation duct according to claim 1, characterized in that, The pipe assembly is made of stainless steel or aluminum alloy and is wrapped with heat insulation cotton on its outer surface.

5. A high-voltage frequency converter heat dissipation and ventilation duct according to claim 1, characterized in that, Sealing and shock-absorbing rubber parts are filled at the wall penetration points of the heat dissipation and ventilation ducts.

6. A high-voltage frequency converter heat dissipation and ventilation duct according to claim 1, characterized in that, A removable protective net is installed at the outlet of the heat dissipation and ventilation duct.

7. A high-voltage frequency converter heat dissipation system, comprising a machine room and a high-voltage frequency converter cabinet installed in the machine room, characterized in that, An air inlet channel and an air outlet channel are respectively provided on two opposite sides of the computer room. The air inlet channel is set lower than the air outlet channel. An air inlet located on the lower side and an air outlet located on the top are provided on the high-voltage frequency converter cabinet. A cabinet top fan is installed on the air outlet. A high-voltage frequency converter heat dissipation and ventilation duct as described in any one of claims 1-6 is connected between the cabinet top fan and the air outlet channel to send the hot air in the high-voltage frequency converter cabinet to the outside of the computer room.

8. A high-voltage frequency converter heat dissipation system according to claim 7, characterized in that, The air outlet of the high-voltage frequency converter heat dissipation and ventilation duct and the air inlet of the air inlet channel are both inclined downwards, and a filter screen is installed on the air inlet channel.

9. A high-voltage frequency converter heat dissipation system according to claim 7, characterized in that, The air inlet is directly opposite the air inlet channel.

10. A high-voltage frequency converter heat dissipation system according to claim 7, characterized in that, The high-voltage frequency converter cabinet includes a transformer cabinet and a power unit cabinet. The transformer cabinet and the power unit cabinet each have independent air ducts, and each air duct is equipped with a corresponding cabinet top fan.

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