Linkage control loop of electric air inlet and exhaust shutter of diesel generating set

Abstract

The utility model discloses a linkage control loop of an electric air inlet and exhaust shutter of a diesel generating set, and belongs to the technical field of diesel generating sets. An electric actuator; the control mechanism is connected with the electric actuating mechanism; a first common end of the opening relay is connected with a first control interface of the electric actuating mechanism, a second common end of the opening relay is connected with a second control interface of the electric actuating mechanism, and a first normally open contact and a second normally open contact of the opening relay are connected with the shutter driving loop; a first normally open contact of the closing relay is connected between the first normally closed contact of the opening relay and the shutter driving loop, and a second normally open contact of the closing relay is connected between the second normally closed contact of the opening relay and the shutter driving loop. The linkage device has the beneficial effects that the electric actuating mechanism and the unit control mechanism are effectively linked, so that the effects of opening the shutter when the unit is started and closing the shutter when the unit is shut down are achieved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of diesel generator set technology, and in particular to an air intake and exhaust louver linkage control circuit. Background Technology

[0002] For diesel generator sets used in outdoor or open-air environments (hereinafter referred to as silent generator sets), due to the special nature of the operating environment, dustproof, rainproof (moistureproof), sunproof, and noise reduction are all protective factors that designers need to consider. The air inlet and exhaust windows are the main components that are in direct or indirect contact with the open air.

[0003] In the existing technology, mechanical air intake louvers and exhaust louvers are installed on the external structure of the unit to meet the needs of natural air intake and heat dissipation. However, the installation of mechanical air intake louvers and exhaust louvers will affect the service life and maintenance of the unit, whether it is operating in the northern region with rain, dust and little sunshine or in the southern region with more rain and high humidity. Utility Model Content

[0004] The purpose of this utility model is to provide a linkage control circuit for the electric intake and exhaust louvers of a diesel generator set, thereby solving the above-mentioned technical problems.

[0005] A linkage control circuit for electrically operated air intake and exhaust louvers in a diesel generator set includes,

[0006] Electric actuator;

[0007] Control mechanism, connected to the electric actuator;

[0008] An activation relay is provided, wherein the first common terminal of the activation relay is connected to the first control interface of the electric actuator, the second common terminal of the activation relay is connected to the second control interface of the electric actuator, and the first normally open contact and the second normally open contact of the activation relay are connected to the louver drive circuit.

[0009] The closing relay has its first normally open contact connected between the first normally closed contact of the opening relay and the louver drive circuit, and the closing relay has its second normally open contact connected between the opening relay and the louver drive circuit.

[0010] Preferably, the first and second shutdown feedback interfaces of the electric actuator are connected to the control mechanism.

[0011] Preferably, the first opening feedback interface and the second opening feedback interface of the electric actuator are connected to the control mechanism.

[0012] Preferably, it also includes,

[0013] A power supply is provided, which is connected to the louver drive circuit.

[0014] Preferably, it also includes,

[0015] A circuit breaker, wherein the first end of the circuit breaker is connected to the power supply, and the second end of the circuit breaker is connected to the first normally open contact of the shut-off relay.

[0016] Preferably, the electric actuator includes,

[0017] An air intake actuator is connected to the control mechanism;

[0018] An exhaust actuator is connected to the control mechanism.

[0019] Preferably, the air intake actuator is connected to an electrically operated air intake louver located on the air intake side of the diesel generator set.

[0020] Preferably, the exhaust actuator is connected to an electrically operated exhaust louver located on the exhaust side of the diesel generator set.

[0021] Preferably, the control mechanism is equipped with an audible and visual alarm for reminders and warnings.

[0022] Preferably, the air intake actuator and the control mechanism are connected via a linkage control line;

[0023] The exhaust actuator and the control mechanism are connected via the linkage control line.

[0024] The beneficial effects of this utility model are: it enables the electric actuator to be effectively linked with the unit control mechanism, so as to achieve the effect of opening the louvers when the unit starts and closing the louvers when it stops, thus extending the service life. Attached Figure Description

[0025] Figure 1 This is a circuit connection diagram of the linkage control circuit for the electric intake and exhaust louvers of the diesel generator set of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of the diesel generator set of this utility model.

[0027] In the attached diagram: 1. Electric actuator; 11. Air intake actuator; 12. Air exhaust actuator; 2. Control mechanism; 3. Power supply; 4. Diesel generator set; 5. Electric air intake louver; 6. Electric air exhaust louver; K1. Opening relay; K2. Closing relay; C1. First control interface; C2. Second control interface; CF1. First closing feedback interface; CF2. Second closing feedback interface; OF1. First opening feedback interface; OF2. First opening feedback interface; QL. Circuit breaker. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0031] A linkage control circuit for electrically operated air intake and exhaust louvers in a diesel generator set, such as... Figure 1 , Figure 2 As shown, including,

[0032] Electric actuator 1;

[0033] Control mechanism 2 is connected to electric actuator 1;

[0034] Turn on relay K1. The first common terminal of the turn on relay K1 is connected to the first control interface C1 of electric actuator 1. The second common terminal of the turn on relay K1 is connected to the second control interface C2 of electric actuator 1. The first normally open contact and the second normally open contact of the turn on relay K1 are connected to the louver drive circuit.

[0035] The first normally open contact of the closing relay K2 is connected between the first normally closed contact of the opening relay K1 and the louver drive circuit, and the second normally open contact of the closing relay K2 is connected between the second normally closed contact of the opening relay K1 and the louver drive circuit.

[0036] Specifically, this utility model provides a linkage control circuit for an electric intake and exhaust louver of a diesel generator set, which enables the electric actuator 1 on the louver to be effectively linked with the generator set control mechanism 2, so as to achieve the effect of opening the louver when the generator set starts and closing the louver when it stops, thus extending its service life.

[0037] In a preferred embodiment, the first shut-off feedback interface CF1 and the second shut-off feedback interface CF2 of the electric actuator 1 are connected to the control mechanism 2;

[0038] The first opening feedback interface OF1 and the second opening feedback interface OF2 of the electric actuator 1 are connected to the control mechanism 2.

[0039] Specifically, the first closed feedback interface CF1 and the second closed feedback interface CF2 transmit the open status feedback signal to the control mechanism 2, and the first open feedback interface OF1 and the second open feedback interface OF2 transmit the closed status feedback signal to the control mechanism 2.

[0040] During the opening process, the position sensors on the louver slats detect the rotation angle of the louver slats and convert it into an electrical signal. The electrical signal is transmitted to the control mechanism 2 through the opening feedback interfaces OF1 and OF2.

[0041] Similarly, during the shutdown process, the information monitored by the sensors is transmitted through the shutdown feedback interfaces CF1 and CF2. The control mechanism 2 contains a signal receiving and processing unit, which can decode and analyze the feedback signals to obtain the status information of the electric actuator 1.

[0042] The control mechanism 1 adopts a closed-loop control strategy, which compares the received feedback signal with the preset target state.

[0043] Taking the opening process as an example, the preset target state might be that the blinds are fully open (reaching an opening angle of 90 degrees). After the control mechanism 2 issues an opening command, it continuously receives feedback signals from OF1 and OF2, comparing the actual opening angle of the blinds with the target angle. If the actual angle is less than the target angle, the control mechanism 2 will continue to maintain the working state of the opening relay K1 until the feedback signal indicates that the blinds have reached the target opening state.

[0044] In a preferred embodiment, it further includes,

[0045] Power supply 3 is connected to the louver drive circuit.

[0046] Specifically, a dedicated power supply 3 is provided for the louver drive circuit, which ensures that the drive circuit receives stable power.

[0047] In a preferred embodiment, it further includes,

[0048] Circuit breaker QL, the first end of circuit breaker QL is connected to power supply 3, and the second end of circuit breaker QL is connected to the first normally open contact of closing relay K2.

[0049] Specifically, the circuit breaker QL can automatically disconnect the circuit when an overload or short circuit occurs. When excessive current occurs in the louver drive circuit, the circuit breaker QL will quickly trip and disconnect the circuit.

[0050] In a preferred embodiment, the electric actuator 1 includes,

[0051] Air intake actuator 11 is connected to control mechanism 2;

[0052] Exhaust actuator 12 is connected to control mechanism 2;

[0053] The air intake actuator 11 and the air exhaust actuator 12 are both manual and automatic, which facilitates maintenance when the electric actuator 1 fails.

[0054] The air intake actuator 11 is connected to the electric air intake louver 5 located on the air intake side of the diesel generator set 4;

[0055] The exhaust actuator 12 is connected to the electric exhaust louver 6 located on the exhaust side of the diesel generator set 4;

[0056] The control mechanism 2 is equipped with an audible and visual alarm for reminders and warnings.

[0057] Specifically, when the unit starts, the control mechanism 2 sends an opening command to the electric actuator 1, with a delay of about 5 seconds (this time is adjustable). After the electric louver window is opened to the appropriate angle, that is, after the electric air inlet louver 5 is successfully opened, the opening status feedback signal is transmitted to the control mechanism 2. After confirming that the opening signal is valid, the start command is executed in the next stage. If the electric actuator 1 fails and the opening fails, the audible and visual alarm in the control mechanism 2 will report "louver opening failure", reminding and warning the operation and maintenance personnel that the electric louver needs to be opened manually.

[0058] When the unit stops, control mechanism 2 issues a stop command. After the unit stops and stabilizes after a delay, a shut-off command is issued. The shut-off command delay is 5 seconds (this time is adjustable). After the electric air inlet louvers 5 close to the appropriate angle, that is, after the electric air inlet louvers 5 are successfully closed, the shut-off status feedback signal is transmitted to control mechanism 2. After confirming that the opening signal is valid, the control system returns to standby mode. If the electric actuator 1 malfunctions and the shut-off fails, the audible and visual alarm of control mechanism 2 will report "louver shut-off failure", reminding and warning the operation and maintenance personnel that the electric louvers need to be manually closed.

[0059] In a preferred embodiment, the air intake actuator 11 and the control mechanism 2 are connected by a linkage control line;

[0060] The exhaust actuator 12 is connected to the control mechanism 2 via a linkage control line.

[0061] Specifically, the air intake actuator 11 and the exhaust actuator 12 are connected to the control mechanism 2 via a linkage control line. The control mechanism 2 can send precise control signals to the air intake actuator 11 and the exhaust actuator 12 based on factors such as the operating status of the diesel generator set 4 and environmental conditions. The signals are transmitted along the linkage control line, accurately directing the actions of the air intake actuator 11 and the exhaust actuator 12.

[0062] For example, when the diesel generator set 4 starts, a large amount of fresh air needs to enter, while exhaust gas produced by combustion is discharged. The control mechanism 2 can send an opening signal to the air intake actuator 11 through the linkage control line to increase the air intake volume, and send an opening signal to the exhaust actuator 12 to speed up the exhaust speed, so that the air intake and exhaust processes are coordinated.

[0063] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A linkage control circuit for electrically operated air intake and exhaust louvers of a diesel generator set, characterized in that, include, Electric actuator; Control mechanism, connected to the electric actuator; An activation relay is provided, wherein the first common terminal of the activation relay is connected to the first control interface of the electric actuator, the second common terminal of the activation relay is connected to the second control interface of the electric actuator, and the first normally open contact and the second normally open contact of the activation relay are connected to the louver drive circuit. The closing relay has its first normally open contact connected between the first normally closed contact of the opening relay and the louver drive circuit, and the closing relay has its second normally open contact connected between the opening relay and the louver drive circuit.

2. The linkage control circuit for the electrically operated air intake and exhaust louvers of the diesel generator set according to claim 1, characterized in that, The first and second shutdown feedback interfaces of the electric actuator are connected to the control mechanism.

3. The linkage control circuit for the electrically operated air intake and exhaust louvers of the diesel generator set according to claim 1, characterized in that, The first and second opening feedback interfaces of the electric actuator are connected to the control mechanism.

4. The linkage control circuit for the electrically operated air intake and exhaust louvers of the diesel generator set according to claim 1, characterized in that, It also includes, A power supply is provided, which is connected to the louver drive circuit.

5. The linkage control circuit for the electrically operated air intake and exhaust louvers of the diesel generator set according to claim 4, characterized in that, It also includes, A circuit breaker, wherein the first end of the circuit breaker is connected to the power supply, and the second end of the circuit breaker is connected to the first normally open contact of the shut-off relay.

6. The linkage control circuit for the electrically operated air intake and exhaust louvers of the diesel generator set according to claim 1, characterized in that, The electric actuator includes, An air intake actuator is connected to the control mechanism; An exhaust actuator is connected to the control mechanism.

7. The linkage control circuit for the electrically operated air intake and exhaust louvers of a diesel generator set according to claim 6, characterized in that, The air intake actuator is connected to an electric air intake louver located on the air intake side of the diesel generator set.

8. The linkage control circuit for the electrically operated air intake and exhaust louvers of the diesel generator set according to claim 7, characterized in that, The exhaust actuator is connected to an electric exhaust louver located on the exhaust side of the diesel generator set.

9. The linkage control circuit for the electrically operated air intake and exhaust louvers of a diesel generator set according to claim 1, characterized in that, The control mechanism is equipped with an audible and visual alarm for reminders and warnings.

10. The linkage control circuit for the electrically operated air intake and exhaust louvers of a diesel generator set according to claim 6, characterized in that, The air intake actuator and the control mechanism are connected by a linkage control line; The exhaust actuator and the control mechanism are connected via the linkage control line.

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