A combined dry load box power module

Abstract

The application discloses a combined dry load box power module, which comprises a box body, lifting lugs, an upper fixing plate, a lower fixing plate, an air inlet grille, an air outlet grille, a three-phase busbar and a control signal slot, the lower end of the side plate of the box body is provided with the air inlet grille, the middle part of the side plate is provided with the control signal slot and the three-phase busbar, one side of the top plate of the box body is provided with the upper fixing plate, one side of the bottom plate of the box body is provided with the lower fixing plate, and the top plate of the box body is provided with the air outlet grille and a plurality of lifting lugs; a controller unit, a fan, a fixed reactor and a plurality of resistance heating pipes are arranged in the box body, the resistance heating pipes are located below the top plate of the box body, the resistance heating pipes are provided with the fan, and the fixed reactor and the controller unit are arranged below the fan. The application can not only avoid damage of the heating pipes, but also does not affect the modules, and is convenient to maintain.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding, and in particular to a combined dry load cell power module. Background Technology

[0002] During the testing of marine generators, the traditional water load system has been gradually replaced by the new dry load box system. The dry load box system can realize local operation and remote computer control, smooth load increase and decrease, sudden load loading and sudden load unloading, and has the advantages of small footprint, high degree of automation and intelligence, and energy saving. However, some problems have also emerged in practical applications, such as requiring operators to be proficient in computer operation, functional waste, and high cost.

[0003] Current dry-type load cells can achieve a single-cell capacity of 5000KVA. However, with the increase in capacity, issues such as the gap between heating elements and ventilation volume frequently lead to heating element damage. Once a heating element is damaged, it can affect the actual power of the load cell, causing a large power deviation, or even require major repairs and replacement. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention provides a combined dry load box power module, which not only avoids damage to the heating element but also ensures that the modules do not interfere with each other and facilitates maintenance.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] A combined dry-type load cell power module includes a housing, lifting lugs, an upper fixing plate, a lower fixing plate, an air inlet grille, an air outlet grille, a three-phase busbar, and a control signal slot. An air inlet grille is provided at the lower end of one side plate of the housing. A control signal slot and a three-phase busbar are provided in the middle of the side plate with the air inlet grille. An upper fixing plate is provided on the top plate of the housing near the air inlet grille. A lower fixing plate is provided on the bottom plate of the housing near the air inlet grille. An air outlet grille and several lifting lugs are provided on the top plate of the housing. The housing is fixed to an external frame by the upper and lower fixing plates.

[0007] The enclosure contains a controller unit, a fan, a fixed reactor, and several resistance heating elements. The resistance heating elements are located below the top plate of the enclosure. Below the resistance heating elements is the fan, and below the fan is the fixed reactor. The controller unit is located below the fan, near the control signal slot and the three-phase busbar. The controller unit is connected to the control power / signal slot and the three-phase busbar via power and data lines, respectively. The controller unit is used to control the fan, the fixed reactor, and the resistance heating elements.

[0008] Furthermore, the number of resistive heating tubes is 27, arranged in six rows, with 4 and 5 resistive heating tubes in adjacent rows respectively, and the resistive heating tubes in adjacent rows are staggered.

[0009] Furthermore, the number of lifting lugs is one, located at the four corners of the top plate of the box body. The two lifting lugs adjacent to the upper fixing plate have their plate surfaces parallel to the side plates of the box body, while the plate surfaces of the other two lifting lugs face the center of the top plate of the box body.

[0010] Furthermore, each end of the control power / signal slot is provided with a plug and a socket for signal transmission between adjacent modules.

[0011] Furthermore, the fan is mounted inside the housing via a fixed frame at the top and a fixed frame at the bottom.

[0012] Furthermore, an L-shaped plate is provided above the bottom plate of the housing, the controller unit is mounted on the L-shaped plate, one end of the bottom plate of the L-shaped plate is fixed to the middle of the air intake grille, and the side plate of the L-shaped plate is fixed to the frame at the bottom of the fan.

[0013] Furthermore, the fixed reactor and the controller unit are located on both sides of the side plate of the L-shaped plate.

[0014] Furthermore, the module has an axisymmetric structure, with two fans and two fixed reactors.

[0015] Furthermore, the resistive heating element has a plug-in mounting structure.

[0016] According to the above technical solution, the present invention has the following advantages: 1. The modular design allows it to work independently without interference from other modules; 2. The independent ventilation structure simplifies manufacturing; 3. The L-shaped plate design provides the controller unit with an independent ventilation channel, preventing interference from the heating element (fixed reactor); 4. The pluggable resistance heating tube allows for individual tube maintenance and replacement; 5. The number of modules can be rationally selected according to the required load, avoiding capacity waste. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a combined dry load box power module according to the present invention.

[0018] Figure 2 This is a longitudinal sectional view of a combined dry load box power module of the present invention.

[0019] Figure 3 This is a side view of a combined dry load box power module according to the present invention.

[0020] Figure 4 This is a ventilation path diagram of a combined dry load box power module according to the present invention. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific examples, so as to make a clearer understanding of its structural type and usage, but this should not be used to limit the scope of protection of the present invention patent.

[0022] like Figure 1-3 As shown, a combined dry-type load cell power module includes a housing 12, lifting lugs 1, an upper fixing plate 2, a lower fixing plate 7, an air inlet grille 10, an air outlet grille 11, a three-phase busbar 5, and a control signal slot 4. An air inlet grille 10 is provided at the lower end of one side plate of the housing 12. A control signal slot 4 and a three-phase busbar 5 are provided in the middle of the side plate of the housing 12 with the air inlet grille 10. An upper fixing plate 2 is provided on the top plate of the housing 12 near the air inlet grille 10. A lower fixing plate 7 is provided on the bottom plate of the housing 12 near the air inlet grille 10. An air outlet grille 11 and several lifting lugs 1 are provided on the top plate of the housing 12. The housing 12 is fixed to an external frame by the upper fixing plate 2 and the lower fixing plate 7.

[0023] Inside the housing 12 are a controller unit 6, a fan 8, a fixed reactor 9, and several resistance heating elements 3. The resistance heating elements 3 are located below the top plate of the housing 12. Below the resistance heating elements 3 is the fan 8, which is an axial flow fan. Below the fan 8 is the fixed reactor 9. The controller unit 6 is located below the fan 8, near the control signal slot 4 and the three-phase busbar 5. The controller unit 6 is connected to the control power / signal slot 4 and the three-phase busbar 5 via power lines and data lines, respectively. The controller unit 6 is used to control the fan 8, the fixed reactor 9, and the several resistance heating elements 3. The controller unit 6 is electrically / signally connected to the fan 8, and is also signal-connected to the fixed reactor 9 and the several resistance heating elements 3. The three-phase busbar 5 is electrically connected to the fixed reactor 9 and the several resistance heating elements 3.

[0024] Furthermore, the number of resistive heating tubes 3 is twenty-seven, arranged in six rows. The number of resistive heating tubes 3 in two adjacent rows is four and five respectively. The resistive heating tubes 3 in two adjacent rows are staggered, that is, the four resistive heating tubes 3 in a row are respectively placed in the four gaps between the five resistive heating tubes 3 in a row.

[0025] Furthermore, there are four lifting lugs 1, which are located at the four corners of the top plate of the box body 12. The two lifting lugs 1 adjacent to the upper fixing plate 2 have their plate surfaces parallel to the side plates of the box body 12, while the plate surfaces of the other two lifting lugs 1 face the center of the top plate of the box body 12.

[0026] Furthermore, each end of the control power / signal slot 4 is provided with a plug and a socket for signal transmission between adjacent modules. The control power / signal slot 4 is provided with a receiving end for receiving control commands and power supply to the controller unit 6 and the fan 8. The three-phase busbar 5 is provided with a receiving end for receiving power supply to the resistive heating tube 3 and the fixed reactor 9.

[0027] Furthermore, the fan 8 is installed inside the housing via a fixed frame at the top and a fixed frame at the bottom.

[0028] Furthermore, an L-shaped plate is provided above the bottom plate of the housing 12, the controller unit 6 is mounted on the L-shaped plate, one end of the bottom plate of the L-shaped plate is fixed to the middle of the air intake grille 10, and the side plate of the L-shaped plate is fixed to the frame at the bottom of the fan 8.

[0029] Furthermore, the fixed reactor 9 and the controller unit 6 are located on both sides of the side plate of the L-shaped plate.

[0030] Furthermore, the module has an axisymmetric structure, with two fans 8 and two fixed reactors 9.

[0031] Furthermore, the resistive heating tube 3 has a plug-in installation structure.

[0032] like Figure 4 As shown, the L-shaped plate separates the controller unit 6 and the fixed reactor 9 into two air ducts, so that the controller unit 6 is not affected by the heat generated by the fixed reactor 9. Then, the heat moves upward through the suction of the fan 8, and at the same time, the fan 8 blows the heat emitted by the resistance heating tube 3 upward out of the housing 1.

[0033] Undoubtedly, the present invention may have other similar structural compositions and uses besides the embodiments described above. In summary, the present invention also includes other modifications and substitutions that will be obvious to those skilled in the art.

Claims

1. A combined dry-type load bank power module, characterized in that, The module includes a housing (12), lifting lugs (1), an upper fixing plate (2), a lower fixing plate (7), an air intake grille (10), an air outlet grille (11), a three-phase busbar (5), and a control power / signal slot (4). An air intake grille (10) is provided at the lower end of one side plate of the housing (12). A control power / signal slot (4) and a three-phase busbar (5) are provided in the middle of the side plate of the housing (12) with the air intake grille (10). An upper fixing plate (2) is provided on the top plate of the housing (12) near the air intake grille (10). A lower fixing plate (7) is provided on the bottom plate of the housing (12) near the air intake grille (10). An air outlet grille (11) and several lifting lugs (1) are provided on the top plate of the housing (12). The housing (12) is fixed to the external frame by the upper fixing plate (2) and the lower fixing plate (7). Inside the housing (12) are a controller unit (6), a fan (8), a fixed reactor (9), and several resistance heating tubes (3). The resistance heating tubes (3) are located below the top plate of the housing (12). Below the resistance heating tubes (3) is the fan (8), and below the fan (8) is the fixed reactor (9). The controller unit (6) is located below the fan (8) on one side near the control power / signal slot (4) and the three-phase bus (5). The controller unit (6) is connected to the control power / signal slot (4) and the three-phase bus (5) via power lines and data lines, respectively. The controller unit (6) is used to control the fan (8), the fixed reactor (9), and several resistance heating tubes (3). An L-shaped plate is provided above the bottom plate of the housing (12). The controller unit (6) is installed on the L-shaped plate. One end of the bottom plate of the L-shaped plate is fixed to the middle of the air intake grille (10). The side plate of the L-shaped plate is fixed to the frame at the bottom of the fan (8). The fixed reactor (9) and the controller unit (6) are located on both sides of the side plate of the L-shaped plate.

2. The combined dry-type load bank power module according to claim 1, characterized in that, The number of the resistive heating tubes (3) is 27, arranged in six rows. The number of resistive heating tubes (3) in two adjacent rows is 4 and 5 respectively. The resistive heating tubes (3) in two adjacent rows are staggered.

3. The combined dry-type load bank power module according to claim 1, characterized in that, There are four lifting lugs (1), which are located at the four corners of the top plate of the box (12). The two lifting lugs (1) adjacent to the upper fixing plate (2) have their plates parallel to the side plates of the box (12), while the plates of the other two lifting lugs (1) face the center of the top plate of the box (12).

4. The combined dry-type load bank power module according to claim 1, characterized in that, The control power / signal slot (4) has a plug and a socket at each end for signal transmission between adjacent modules.

5. The combined dry-type load bank power module according to claim 1, characterized in that, The fan (8) is installed in the housing by a fixed frame at the top and a fixed frame at the bottom.

6. The combined dry-type load bank power module according to claim 1, characterized in that, The module has an axisymmetric structure, with two fans (8) and two fixed reactors (9).

7. The combined dry-type load bank power module according to claim 1, characterized in that, The resistive heating tube (3) has a plug-in installation structure.

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