Dehumidifier control system for underground public garage

Abstract

The utility model discloses a dehumidifier control system for an underground public garage, which comprises a power supply loop consisting of a main draining pump control loop (1), an auxiliary draining pump control loop (2) and a dehumidifier control loop (3), a first contactor coil (101) is arranged in the main draining pump control loop (1), a second contactor coil (201) is arranged in the auxiliary draining pump control loop (2), and the dehumidifier control loop (3) is connected with the first contactor coil (101). And the dehumidifier control loop (3) comprises a first normally-closed contactor normally-closed contact (301), a second normally-closed contactor normally-closed contact (302) and a third contactor coil (303) which are connected in sequence. According to the utility model, cooperative power supply of the dehumidifier and the drainage pump in the underground public garage can be realized, and stable use of the drainage pump is ensured.

Description

Technical Field

[0001] This utility model relates to a dehumidifier control system, and more particularly to a dehumidifier control system for underground public parking garages. Background Technology

[0002] With the increasing sophistication of dehumidifiers, some regions are considering installing industrial dehumidifiers in underground public parking garages to address humidity issues. However, because these garages were not designed with the power distribution points and capacity requirements for dehumidifiers in mind, installation can disrupt the power supply to existing electrical equipment. This can cause the equipment to malfunction due to insufficient power when the dehumidifier is turned on, affecting the normal operation of the garage and creating safety hazards. Rewiring the existing power distribution system and providing a separate power supply for the dehumidifier would significantly increase the difficulty of installation, making it impossible for many underground public parking garages to install dehumidifiers due to cost and power distribution limitations.

[0003] Therefore, it is difficult to retrofit dehumidifiers into existing underground public parking garages. Utility Model Content

[0004] The purpose of this invention is to provide a dehumidifier control system for underground public parking garages. It enables coordinated power supply between the dehumidifier and the drainage pump in the underground parking garage, ensuring the stable operation of the drainage pump.

[0005] The technical solution of this utility model is as follows: A dehumidifier control system for an underground public parking garage includes a power circuit consisting of a main drainage pump control circuit, a secondary drainage pump control circuit, and a dehumidifier control circuit. The main drainage pump control circuit contains a first contactor coil, and the secondary drainage pump control circuit contains a second contactor coil. The dehumidifier control circuit includes a first normally closed contactor normally closed contact, a second normally closed contactor normally closed contact, and a third contactor coil connected in sequence. The first contactor coil controls the main drainage pump to start after being energized, the second contactor coil controls the secondary drainage pump to start after being energized, the first normally closed contactor normally closed contact opens after the main drainage pump starts, the second normally closed contactor normally closed contact opens after the secondary drainage pump starts, and the third contactor coil controls the dehumidifier to start after being energized.

[0006] The aforementioned dehumidifier control system for an underground public parking garage also includes a main drainage pump power distribution circuit that works in conjunction with the main drainage pump control circuit and a secondary drainage pump power distribution circuit that works in conjunction with the secondary drainage pump control circuit. The main drainage pump power distribution circuit includes a first circuit breaker, a first contactor, a first thermal relay, and the main drainage pump connected in sequence. The secondary drainage pump power distribution circuit includes a second circuit breaker, a second contactor, a second thermal relay, and the secondary drainage pump connected in sequence.

[0007] The aforementioned dehumidifier control system for underground public parking garages also includes a dehumidifier power distribution circuit that works in conjunction with the dehumidifier control circuit. The dehumidifier power distribution circuit includes a third circuit breaker, a third contactor, and a dehumidifier connected in sequence.

[0008] In the aforementioned dehumidifier control system for an underground public parking garage, both the main drainage pump control circuit and the auxiliary drainage pump control circuit are externally connected to liquid level sensors.

[0009] In the aforementioned dehumidifier control system for an underground public parking garage, a fuse is externally connected to the power supply circuit.

[0010] Compared with existing technologies, this utility model adds a dehumidifier to the existing drainage pump power distribution system of underground public parking garages, enabling the drainage pump's power supply circuit to simultaneously power the dehumidifier. Furthermore, by defining the connection structure of the power circuit, the dehumidifier's operating state can be linked to the opening and closing of the drainage pump. Specifically, when the main or auxiliary drainage pump is turned on, the dehumidifier is disconnected to ensure stable operation of the drainage pump; conversely, when the drainage pump is turned off, the dehumidifier is simultaneously powered on, maintaining dehumidification of the underground public parking garage for most of the time. With this combination, this utility model can power and operate the dehumidifier without adding a power supply circuit, without affecting the normal operation of existing electrical equipment in the underground public parking garage, effectively reducing the difficulty of installing a dehumidifier in an underground public parking garage. Attached Figure Description

[0011] Figure 1 This is a connection diagram of the main drain pump control circuit, the auxiliary drain pump control circuit, and the dehumidifier control circuit.

[0012] Figure 2 This is a connection diagram of the main drainage pump power distribution circuit, the auxiliary drainage pump power distribution circuit, and the dehumidifier power distribution circuit.

[0013] The labels in the attached diagram are as follows: 1-Main drain pump control circuit, 2-Auxiliary drain pump control circuit, 3-Dehumidifier control circuit, 4-Main drain pump power distribution circuit, 5-Auxiliary drain pump power distribution circuit, 6-Dehumidifier power distribution circuit, 7-Fuse, 101-First contactor coil, 102-Main drain pump operation indicator light, 201-Second contactor coil, 202-Auxiliary drain pump operation indicator light, 301-First normally closed contactor normally closed contact, 302-Second normally closed contactor normally closed contact, 303-Third contactor coil, 401-First circuit breaker, 402-First contactor, 403-First thermal relay, 404-Main drain pump, 501-Second circuit breaker, 502-Second contactor, 503-Second thermal relay, 504-Auxiliary drain pump, 601-Third circuit breaker, 602-Third contactor, 603-Dehumidifier. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0015] Example. A dehumidifier control system for an underground public parking garage, configured as follows: Figure 1 As shown, the circuit includes a power supply circuit consisting of a main drain pump control circuit 1, a secondary drain pump control circuit 2, and a dehumidifier control circuit 3. The main drain pump control circuit 1, the secondary drain pump control circuit 2, and the dehumidifier control circuit 3 are all connected in parallel to an external power source. The main drain pump control circuit 1 is equipped with a first contactor coil 101. The first contactor coil 101 is connected in series with the existing main drain pump control circuit to form the main drain pump control circuit 1. The secondary drain pump control circuit 2 is equipped with a second contactor coil 201. The second contactor coil 201 is connected in series with the existing secondary drain pump control circuit to form the secondary drain pump control circuit 2.

[0016] The dehumidifier control circuit 3 includes a first normally closed contactor normally closed contact 301, a second normally closed contactor normally closed contact 302, and a third contactor coil 303 connected in sequence. The first contactor coil 101 is used to control the main drain pump 404 to start after being energized, the second contactor coil 201 is used to control the auxiliary drain pump 504 to start after being energized, the first normally closed contactor normally closed contact 301 is used to open after the main drain pump 404 is started, the second normally closed contactor normally closed contact 302 is used to open after the auxiliary drain pump 504 is started, and the third contactor coil 303 is used to control the dehumidifier 603 to start after being energized.

[0017] The main drainage pump control circuit 1 is also provided with a main drainage pump operation indicator light 102, and the main drainage pump operation indicator light 102 and the first contactor coil 101 are connected in parallel in the main drainage pump control circuit 1; the auxiliary drainage pump control circuit 2 is provided with an auxiliary drainage pump operation indicator light 202, and the auxiliary drainage pump operation indicator light 202 and the second contactor coil 201 are connected in parallel in the auxiliary drainage pump control circuit 2.

[0018] It also includes a main drainage pump power distribution circuit 4 that works in conjunction with the main drainage pump control circuit 1 and a secondary drainage pump power distribution circuit 5 that works in conjunction with the secondary drainage pump control circuit 2. The main drainage pump power distribution circuit 4 includes a first circuit breaker 401, a first contactor 402, a first thermal relay 403 and a main drainage pump 404 connected in sequence. The secondary drainage pump power distribution circuit 5 includes a second circuit breaker 501, a second contactor 502, a second thermal relay 503 and a secondary drainage pump 504 connected in sequence.

[0019] It also includes a dehumidifier power distribution circuit 6 that works in conjunction with the dehumidifier control circuit 3. The dehumidifier power distribution circuit 6 includes a third circuit breaker 601, a third contactor 602 and a dehumidifier 603 connected in sequence.

[0020] Both the control circuit of the existing main drainage pump and the control circuit of the existing auxiliary drainage pump are externally connected to a liquid level sensor. The liquid level sensor controls the opening and closing of the main drainage pump and the auxiliary drainage pump 504 according to the water level in the sump. That is, when the water level in the sump is higher than the threshold, the liquid level sensor triggers the main drainage pump control circuit 1 or the auxiliary drainage pump control circuit 2 to conduct, and the drainage pump starts; when the water level in the sump is lower than the threshold, the liquid level sensor triggers the main drainage pump control circuit 1 or the auxiliary drainage pump control circuit 2 to disconnect, and the drainage pump stops.

[0021] The power circuit is externally connected to a fuse 7.

[0022] The working principle of this utility model is as follows: Taking the main drain pump 404 as an example, when the water level in the sump is higher than the threshold, the level sensor triggers the control circuit of the existing main drain pump to open. The main drain pump control circuit 1 is activated and the first contactor coil 101 is energized, causing the first contactor 402 to close. The main drain pump power distribution circuit 4 is connected, enabling the main drain pump 404 to start and perform its drainage function. After the first contactor 402 closes, the normally closed contact 301 of the first normally closed contactor opens, causing the dehumidifier control circuit 3 to disconnect and the third contactor coil 303 to lose power. After the third contactor coil 303 loses power, the third contactor 602 opens, causing the dehumidifier 603 to shut down. The working process of the auxiliary drain pump 504 is the same as that of the main drain pump 404. Therefore, when either drain pump is running, the dehumidifier control circuit 3 will disconnect, causing the third contactor coil 303 to lose power, thus putting the dehumidifier 603 in a power-off and shut-off state. With the above coordination, the main drain pump 404, the auxiliary drain pump 504 and the dehumidifier 603 can be linked together, and the drain pump has a higher priority than the dehumidifier 603, thereby ensuring the normal power supply and stable use of the drain pump after it is turned on.

[0023] By combining the dehumidifier 603 with a drain pump, it is convenient for the dehumidifier 603 to discharge water into the collection pit after dehumidification. On the other hand, the drain pump in the underground public garage is used relatively infrequently, which allows the dehumidifier 603 to maintain its working state for a longer period of time, thereby improving the dehumidification effect on the underground public garage.

Claims

1. A dehumidifier control system for an underground public garage, characterized by: The power circuit comprises a main drainage pump control circuit (1), a secondary drainage pump control circuit (2) and a dehumidifier control circuit (3), the first contactor coil (101) is arranged in the main drainage pump control circuit (1), the second contactor coil (201) is arranged in the secondary drainage pump control circuit (2), the dehumidifier control circuit (3) comprises a first normally closed contactor moving breaking contact (301), a second normally closed contactor moving breaking contact (302) and a third contactor coil (303) connected in sequence; the first contactor coil (101) is used for controlling the main drainage pump to be turned on after being powered on, the second contactor coil (201) is used for controlling the secondary drainage pump to be turned on after being powered on, the first normally closed contactor moving breaking contact (301) is used for being disconnected after the main drainage pump is turned on, the second normally closed contactor moving breaking contact (302) is used for being disconnected after the secondary drainage pump is turned on, and the third contactor coil (303) is used for controlling the dehumidifier to be turned on after being powered on.

2. The dehumidifier control system for an underground public garage according to claim 1, wherein: The main drainage pump power distribution circuit (4) matched with the main drainage pump control circuit (1) and the secondary drainage pump power distribution circuit (5) matched with the secondary drainage pump control circuit (2) are further included, the main drainage pump power distribution circuit (4) comprises a first circuit breaker (401), a first contactor (402), a first thermal relay (403) and a main drainage pump (404) connected in sequence, and the secondary drainage pump power distribution circuit (5) comprises a second circuit breaker (501), a second contactor (502), a second thermal relay (503) and a secondary drainage pump (504) connected in sequence.

3. The dehumidifier control system for an underground public garage according to claim 1, wherein: The dehumidifier power distribution circuit (6) matched with the dehumidifier control circuit (3) is further included, and the dehumidifier power distribution circuit (6) comprises a third circuit breaker (601), a third contactor (602) and a dehumidifier (603) connected in sequence.

4. The dehumidifier control system for an underground public garage according to claim 1, wherein: The liquid level sensor is connected to the outside of the main drainage pump control circuit (1) and the secondary drainage pump control circuit (2).

5. The dehumidifier control system for an underground public garage according to claim 1, characterized by: The fuse (7) is connected to the outside of the power circuit.

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