Rectification cabinet

Abstract

The utility model discloses a rectifier cabinet which comprises a cabinet body, a circuit breaker module, a rectifier module, a filter circuit module, a smoothing reactor module, a water-cooling heat dissipation module, a ventilation heat dissipation module, a cabinet door panel module and a unit controller module. The cabinet body is provided with a front cabinet door and a rear cabinet door, and the cabinet door panel module is arranged on the front cabinet door and comprises an indicator lamp, an air switch, a button switch, an emergency stop switch and a rotary switch. The front cabinet door and the rear cabinet door are each provided with a door lock and an electromagnetic lock, and input current in the rectifier cabinet sequentially passes through an alternating-current circuit breaker of the circuit breaker module, the rectifier module, a direct-current circuit breaker of the circuit breaker module and the smoothing reactor module and is finally output. According to the utility model, the rectifier module is vertically arranged and the smoothing reactor module is arranged at the bottom of the rectifier cabinet, so that the transverse size of the rectifier cabinet is reduced; the ventilation heat dissipation module and the water-cooling heat dissipation module are combined to dissipate heat and cool devices in the cabinet, and the service life of the devices is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic hydrogen production equipment, in particular to a rectifier cabinet. Background Art

[0002] A rectifier cabinet is a power device used to convert alternating current into direct current. With the rapid development of high-power semiconductor technology, semiconductor rectifier cabinets are widely used in the chemical industry, metallurgical industry and other fields. In recent years, with the development of new energy technology, semiconductor rectifier cabinets have begun to play an important role in the field of photohydrogen storage and heat. The utility model is applied to the technical field of electrolytic hydrogen production equipment. The core part of the rectifier cabinet is the rectifier module. The setting of the rectifier module in the conventional rectifier cabinet is mostly irregular, and the space utilization rate is low. It is necessary to improve the layout structure to improve the space utilization rate of the rectifier cabinet so that more rectifier modules can be installed in the same cabinet. At the same time, common rectifier cabinets generally have a single cooling method, but when the power of the rectifier cabinet is large, the single cooling method often cannot meet the heat dissipation problem of the device, and a better cooling solution is needed to improve this problem. Utility Model Content

[0003] In order to solve the deficiencies in the prior art, the utility model provides a rectifier cabinet developed for an electrolytic hydrogen production system, while focusing on improving the common problems of rectifier cabinets at present, such as large space occupation and poor heat dissipation effect.

[0004] The present invention adopts the following technical solution.

[0005] A rectifier cabinet comprises a cabinet body, a circuit breaker module, a rectifier module, a filter circuit module, a smoothing reactor module, a water cooling module, a ventilation and cooling module, a cabinet door panel module and a unit controller module, wherein the cabinet body is provided with a front cabinet door and a rear cabinet door, and the cabinet door panel module is fixedly arranged on the front cabinet door;

[0006] The circuit breaker module is arranged at the front side of the cabinet and is connected to the cabinet door panel module circuit;

[0007] The rectifier module is vertically arranged in the middle of the cabinet, the filter circuit module is arranged in the upper part of the cabinet and is located at the AC input end of the rectifier module in circuit topology, and the smoothing reactor module is arranged at the bottom of the cabinet and is located at the DC output end of the rectifier module in circuit topology;

[0008] The water cooling and heat dissipation module is arranged at the rear side of the cabinet, the ventilation and heat dissipation module is arranged above the outside of the cabinet, and the unit controller module is arranged at the front side of the cabinet.

[0009] Preferably, the cabinet door panel module includes an indicator light, an air switch, a push button switch, an emergency stop switch, a rotary switch and an observation window, and the air switch and the rotary switch are arranged below the indicator light.

[0010] Preferably, the air switch is arranged at the lower part of the cabinet door, and the number of the observation windows is 4, which are respectively arranged above the indicator light and below the button switch.

[0011] Preferably, the front cabinet door and the rear cabinet door are provided with door locks and electromagnetic locks.

[0012] Preferably, the rectifier module comprises a water-cooling plate, and a circulating water circuit is designed in the water-cooling plate.

[0013] Preferably, the water-cooling heat dissipation module is a circulating water circuit entering and exiting the rectifier cabinet, including a water inlet main pipe, a water outlet main pipe, a water inlet trunk pipe, a water outlet trunk pipe, a water inlet branch pipe, a water outlet branch pipe, an internal water circuit of the water cooling plate, and an internal water circuit of the smoothing reactor.

[0014] Preferably, both ends of the water channel inside the water cooling plate and the water channel inside the smoothing reactor are water inlet and water outlet, which are respectively connected to the water inlet branch pipe and the water outlet branch pipe.

[0015] Preferably, the two ends of the water circuit of the water-cooling heat dissipation module are respectively the water inlet pipe and the water outlet pipe of the rectifier cabinet, which serve as the pipe openings for connecting the water-cooling heat dissipation module in the cabinet to the outside, and are connected to an external water circulation cooling device or any one of another rectifier cabinets.

[0016] Preferably, the ventilation and heat dissipation module includes a thermostat, a cabinet top fan and cabinet bottom ventilation holes, and the cabinet top fan and cabinet bottom ventilation holes are respectively arranged on the top and bottom of the rectifier cabinet.

[0017] Preferably, the unit controller module is arranged at the front side of the cabinet, and is used to monitor the status of the components in the cabinet, provide feedback to the upper-level control and protection, receive upper-level control and protection signals, and perform start and stop control on the rectifier cabinet.

[0018] The beneficial effect of the present invention is that, compared with the prior art,

[0019] (1) The rectifier cabinet disclosed in the utility model adopts a combination of ventilation heat dissipation and water cooling heat dissipation. A water cooling heat dissipation circuit is arranged in the cabinet to perform water heat exchange on the components and equipment in the cabinet. Ventilation heat dissipation holes are opened in the cabinet shell to perform forced air cooling on the components and equipment. The combination of the two heat dissipation methods can reduce the operating temperature of the components and equipment, reduce the failure rate of the equipment in the cabinet, and extend the overall service life;

[0020] (2) The rectifier cabinet disclosed in the utility model is designed to have a rectifier module structure that can be placed vertically. By rationally arranging the modules in the cabinet, the design size of the cabinet can be reduced and the cabinet footprint can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall schematic diagram of the utility model high-power rectifier cabinet;

[0022] Figure 2 for Figure 1 Side view of high-power rectifier cabinet;

[0023] Figure 3 for Figure 1 Panel diagram of high-power rectifier cabinet;

[0024] Figure 4 for Figure 1 Schematic diagram of water cooling module in medium and large power rectifier cabinet.

[0025] In the figure: 10, cabinet; 101, front cabinet door; 102, rear cabinet door; 20, circuit breaker module; 30, rectifier module; 301, water cooling plate; 40, filter circuit module; 50, smoothing reactor module; 60, water cooling module; 601, water inlet pipe; 602, water outlet pipe; 603, water inlet main pipe; 604, water outlet main pipe; 605, water inlet branch pipe; 606, water outlet branch pipe; 607, inside of water cooling plate Internal water circuit; 608, internal water circuit of smoothing reactor; 70, ventilation and heat dissipation module; 701, thermostat; 702, cabinet top fan; 703, cabinet bottom ventilation hole; 80, cabinet door panel module; 801, indicator light; 802, air switch; 803, push button switch; 804, emergency stop switch; 805, rotary switch; 806, observation window; 807, door lock; 808, electromagnetic lock; 90, unit controller module. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The embodiments described in this application are only part of the embodiments of the utility model, not all of them. Based on the spirit of the utility model, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the utility model.

[0027] The utility model proposes a high-power rectifier cabinet, combined with Figure 1 and Figure 2 As shown, the rectifier cabinet includes a cabinet body 10, a circuit breaker module 20, a rectifier module 30, a filter circuit module 40, a smoothing reactor module 50, a water cooling module 60, a ventilation and cooling module 70, a cabinet door panel module 80, and a unit controller module 90.

[0028] The cabinet 10 is provided with a front cabinet door 101 and a rear cabinet door 102, and the cabinet door panel module 80 is provided on the front cabinet door 101; the circuit breaker module 20 is placed on the front side of the cabinet 10 and is connected to the cabinet door panel module 80 by circuit;

[0029] The rectifier module 30 is vertically placed in the middle of the cabinet 10, the filter circuit module 40 is placed on the upper part of the cabinet 10, and is located at the AC side input end of the rectifier module 30 in the circuit topology, the smoothing reactor module 50 is placed at the bottom of the cabinet 10, and is located at the DC side output end of the rectifier module 30 in the circuit topology, the water cooling and heat dissipation module 60 is placed on the rear side of the cabinet 10, the ventilation and heat dissipation module 70 is located above the outside of the cabinet 10, and the unit controller module 90 is arranged on the front side of the cabinet.

[0030] In a preferred but non-limiting embodiment of the present invention, Figure 2 and Figure 3 As shown, the cabinet door panel module 80 includes an indicator light 801, an air switch 802, a push button switch 803, an emergency stop switch 804, a rotary switch 805, and an observation window 806, which are used to observe the operating status of the rectifier cabinet and control the start and stop of the circuit breaker module to control the operation and shutdown of the rectifier cabinet.

[0031] The front and rear cabinet doors 101 and the rear cabinet door 102 are both provided with door locks 807 and electromagnetic locks 808. The cabinet doors cannot be opened during power-on operation, thus ensuring the safety of the operators.

[0032] The circuit breaker module 20 is placed at the front side of the cabinet 10 and is connected to the cabinet door panel module 80 for secondary circuit connection. The cabinet door panel module 80 controls the on and off of the circuit breaker module 20 to control the operation and parking of the rectifier cabinet.

[0033] Combination Figure 2 and Figure 4 As shown, the rectifier module 30 is placed in the middle of the cabinet 10 in a vertical placement manner, which reduces the lateral size of the cabinet and is beneficial to the natural heat dissipation of the rectifier module 30 .

[0034] In a preferred but non-limiting embodiment of the present invention, the rectifier module 30 includes a water-cooled plate 301, in which a circulating water path is designed as a part of the water-cooled heat dissipation module 60 for dissipating heat and cooling the rectifier components placed on both sides of the water-cooled plate.

[0035] The filter circuit module 40 is placed on the upper part of the cabinet 10 and is located at the AC input end of the rectifier module 30 in circuit topology. It plays a role in filtering line harmonics and absorbing line stray inductance to prevent excessive peak voltage from damaging the components in the rectifier module 30.

[0036] The smoothing reactor module 50 is placed at the bottom of the cabinet 10, further effectively utilizing the internal space of the rectifier cabinet and reducing the lateral size of the cabinet 10. In the circuit topology, it is located at the DC side output end of the rectifier module 30, which plays a role in reducing the output side current ripple and improving the power quality.

[0037] Combination Figure 2 and Figure 4 As shown, the water cooling module 60 is a circulating water path for entering and exiting the rectifier cabinet, including an inlet and outlet water main pipe 601, an outlet water main pipe 602, an inlet and outlet water main pipe 603, an outlet water main pipe 604, an inlet and outlet water branch pipe 605, an outlet water branch pipe 606, an internal water path 607 of the water cooling plate, and an internal water path 608 of the smoothing reactor;

[0038] The two ends of the water channel 607 inside the water cooling plate and the water channel 608 inside the smoothing reactor are respectively a water inlet and a water outlet, which are connected to the water inlet branch pipe 605 and the water outlet branch pipe 606 respectively.

[0039] The two ends of the water channel of the water-cooled heat dissipation module 60 are the water inlet pipe 601 and the water outlet pipe 602 of the rectifier cabinet respectively. As the pipe openings for the water-cooled heat dissipation module 60 in the cabinet to connect to the outside, it can be directly connected to an external water circulation cooling device or to another rectifier cabinet, easily realizing the cabinet combining function.

[0040] Combination Figure 2 As shown, the ventilation and heat dissipation module 70 includes a thermostat 701, a top fan 702 and ventilation holes 703 at the bottom of the cabinet. It is worth noting that the utility model determines the parameter selection of the fan 702 and the opening area of ​​the ventilation holes 703 at the bottom of the cabinet according to the loss value of the components in the cabinet. The thermostat 701 will determine whether the fan 702 is turned on according to the temperature value in the cabinet. When the set temperature value is reached, the top fan 702 is turned on, which will form a bottom-up wind flow in the cabinet to dissipate excess heat in the cabinet.

[0041] Combination Figure 2 As shown, the unit controller module 90 is arranged on the front side of the cabinet, and is used to monitor the status of the components in the cabinet, provide feedback to the upper-level control and protection and receive upper-level control and protection signals, and start or stop the rectifier cabinet.

[0042] The beneficial effect of the present invention is that, compared with the prior art,

[0043] (1) The rectifier cabinet disclosed in the utility model adopts a combination of ventilation heat dissipation and water cooling heat dissipation. A water cooling heat dissipation circuit is arranged in the cabinet to perform water heat exchange on the components and equipment in the cabinet. Ventilation heat dissipation holes are opened in the cabinet shell to perform forced air cooling on the components and equipment. The combination of the two heat dissipation methods can reduce the operating temperature of the components and equipment, reduce the failure rate of the equipment in the cabinet, and extend the overall service life;

[0044] (2) The rectifier cabinet disclosed in the utility model is designed to have a rectifier module structure that can be placed vertically. By rationally arranging the modules in the cabinet, the design size of the cabinet can be reduced and the cabinet footprint can be reduced.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A rectifier cabinet, comprising: A cabinet (10), a circuit breaker module (20), a rectifier module (30), a filter circuit module (40), a smoothing reactor module (50), a water cooling module (60), a ventilation and cooling module (70), a cabinet door panel module (80) and a unit controller module (90), characterized in that: The cabinet body (10) is provided with a front cabinet door (101) and a rear cabinet door (102), and the cabinet door panel module (80) is fixedly arranged on the front cabinet door (101); The circuit breaker module (20) is arranged on the front side of the cabinet (10) and is circuit-connected to the cabinet door panel module (80); The rectifier module (30) is vertically arranged in the middle of the cabinet (10), the filter circuit module (40) is arranged on the upper part of the cabinet (10) and is located at the AC input end of the rectifier module (30) in terms of circuit topology, and the smoothing reactor module (50) is arranged at the bottom of the cabinet (10) and is located at the DC output end of the rectifier module (30) in terms of circuit topology; The water cooling and heat dissipation module (60) is arranged on the rear side of the cabinet (10), the ventilation and heat dissipation module (70) is arranged above the outside of the cabinet (10), and the unit controller module (90) is arranged on the front side inside the cabinet (10).

2. The rectifier cabinet according to claim 1, characterized in that: The cabinet door panel module (80) comprises: an indicator light (801), an air switch (802), a push button switch (803), an emergency stop switch (804), a rotary switch (805) and an observation window (806), wherein the air switch (802) and the rotary switch (805) are arranged below the indicator light (801).

3. The rectifier cabinet according to claim 2, characterized in that: The air switch (802) is arranged at the lower part of the cabinet door. The number of the observation windows (806) is 4, at least two of which are arranged above the indicator light (801), and the rest are arranged below the button switch (803).

4. The rectifier cabinet according to claim 1, characterized in that: The front cabinet door (101) and the rear cabinet door (102) are both provided with a door lock (807) and an electromagnetic lock (808).

5. The rectifier cabinet according to claim 1, characterized in that: The rectifier module (30) comprises: a water-cooling plate (301), wherein the water-cooling plate (301) is provided with a water-cooling plate internal water channel (607).

6. The rectifier cabinet according to claim 1, characterized in that: The water cooling and heat dissipation module (60) is a circulating water circuit for entering and exiting the rectifier cabinet, comprising: a water inlet main pipe (601), a water outlet main pipe (602), a water inlet trunk pipe (603), a water outlet trunk pipe (604), a water inlet branch pipe (605), a water outlet branch pipe (606), an internal water circuit of a water cooling plate (607), and an internal water circuit of a smoothing reactor (608).

7. The rectifier cabinet according to claim 6, characterized in that: The two ends of the water channel (607) inside the water cooling plate and the water channel (608) inside the smoothing reactor are water inlet and water outlet, which are respectively connected to the water inlet branch pipe (605) and the water outlet branch pipe (606).

8. The rectifier cabinet according to claim 6, characterized in that: The two ends of the water path of the water-cooling heat dissipation module (60) are respectively the water inlet pipe (601) and the water outlet pipe (602) of the rectifier cabinet, which serve as the pipe openings for connecting the water-cooling heat dissipation module (60) inside the cabinet to the outside, and are connected to an external water circulation cooling device or any one of another rectifier cabinets.

9. The rectifier cabinet according to claim 1, characterized in that: The ventilation and heat dissipation module (70) comprises: a temperature controller (701), a cabinet top fan (702) and cabinet bottom ventilation holes (703), wherein the cabinet top fan (702) and cabinet bottom ventilation holes (703) are respectively arranged at the top and bottom of the rectifier cabinet.

10. The rectifier cabinet according to claim 1, characterized in that: The unit controller module (90) is arranged at the front side of the cabinet, and is used to monitor the status of components in the cabinet, provide feedback to the upper-level control and protection, receive upper-level control and protection signals, and perform start and stop control on the rectifier cabinet.

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