CN212849313U - Automatic energy-saving control system for air conditioner of substation - Google Patents
Automatic energy-saving control system for air conditioner of substation Download PDFInfo
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- CN212849313U CN212849313U CN202021974207.6U CN202021974207U CN212849313U CN 212849313 U CN212849313 U CN 212849313U CN 202021974207 U CN202021974207 U CN 202021974207U CN 212849313 U CN212849313 U CN 212849313U
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Abstract
The utility model discloses an energy-conserving automatic control system of electric substation air conditioner for control the air conditioner motor, the system includes: the device comprises a knife switch, a contactor, a thermal relay and a switch control unit; the knife switch, the main contact of the contactor, the thermal relay heating element and the air conditioner motor are sequentially connected to form a main circuit; the knife switch is used for connecting a power supply; the switch control unit, the normally closed contact of the thermal relay and the coil of the contactor are sequentially connected to form a control circuit; the switch control unit includes: the manual control unit and the automatic control unit are connected in parallel; the manual control unit includes: a first fuse and a manual module connected in series; the automatic control unit comprises; a second fuse and an automation module connected in series; the input end of the switch control unit is connected with a control power supply access point, and the control power supply access point is arranged between the knife switch and the main contact of the contactor. The utility model discloses can open of transformer substation's air conditioner and stop and carry out nimble control to effectively save the electric energy.
Description
Technical Field
The utility model relates to an automatic control field, concretely relates to energy-conserving automatic control system of electric substation's air conditioner.
Background
A substation is a location in an electrical power system where the voltage and current of electrical energy are transformed, concentrated, and distributed. In order to ensure the quality of electric energy and the safety of equipment, voltage regulation, power flow (the flow direction and distribution of voltage, current and power in each node and branch in an electric power system) control and protection of transmission and distribution lines and main electrical equipment are also needed in a substation. The distribution room carries high voltage and high current, and a lot of transformers, stabiliser in addition, and the heat dissipation is very big, needs air conditioner cooling, ventilation usually.
At present, the operation of an air conditioning system of a substation is mostly manually operated by an operator, namely, the ambient temperature is reduced by manually controlling the operation time of the air conditioner. Because the equipment operation calorific capacity is great, especially summer ambient temperature is higher, and the air conditioner opens and stops the interval time shorter, and the air conditioner long-term operation then causes the energy waste, and the down time is longer then ambient temperature is higher and causes the influence to equipment steady operation. The existing air conditioner control mode not only wastes more manpower and energy resources; moreover, the control range of the environmental temperature is not a standard, so the use effect of the air conditioner is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy-conserving automatic control system of electric substation air conditioner can realize the nimble control to the electric substation air conditioner to effectively save the electric energy.
Therefore, the utility model provides a following technical scheme:
an energy-saving automatic control system for an air conditioner in a substation is used for controlling an air conditioner motor M, and the system comprises: the device comprises a knife switch QF, a contactor KM, a thermal relay FH and a switch control unit;
the knife switch QF, the main contact of the contactor KM, a thermal relay FH heating element and an air conditioner motor are sequentially connected to form a main circuit; the knife switch QF is used for connecting a power supply;
wherein, the switch control unit, the normally closed contact of the thermal relay FH and the coil of the contactor KM are connected in sequence to form a control circuit; the switch control unit includes: the manual control unit and the automatic control unit are connected in parallel; the manual control unit includes: a first fuse FU1 and a manual module connected in series; the automatic control unit comprises; a second fuse FU2 and an automation module connected in series; one end of the first fuse FU1 is connected with one end of the second fuse FU2 and serves as an input end of the switch control unit; one end of the manual module is connected with one end of the automatic module and is used as the output end of the switch control unit; the input end of the switch control unit is connected with a control power supply access point, and the control power supply access point is arranged between the knife switch QF and the main contact of the contactor KM; one end of the coil of the contactor KM is connected with a zero line.
Optionally, the manual module comprises: a stop control unit and a start control unit connected in series; and two ends of a normally open auxiliary contact of the contactor KM are respectively connected with two ends of the starting control unit.
Optionally, the stop control unit includes: one or more series-connected stop buttons; the start control unit includes: one or more parallel-connected activation buttons.
Optionally, the automatic control unit comprises: and (7) a temperature controller.
Optionally, the thermostat is any one of the following: a constant temperature controller and a microcomputer temperature controller.
Optionally, the system further comprises: a signal indication unit.
Optionally, the signal indication unit includes:
a first signal lamp; one end of the first signal lamp is connected with the zero line, and the other end of the first signal lamp is connected with the output end of the switch control unit.
Optionally, the signal indication unit further includes:
a second signal lamp; one end of the second signal lamp is connected with the zero line, the other end of the second signal lamp is connected with one end of the normally closed auxiliary contact of the contactor KM, and the other end of the normally closed auxiliary contact of the contactor KM is connected with the input end of the switch control unit.
The utility model provides an energy-conserving automatic control system of electric substation air conditioner through setting up parallel manual control return circuit and automatic control return circuit, can realize opening the nimble control that stops to the air conditioner motor. When manual control is needed, a first fuse of the manual control loop is closed, and a second fuse of the automatic control loop is disconnected; on the contrary, when the automatic control is needed, the first fuse of the manual control loop is disconnected, and the second fuse of the automatic control loop is connected; therefore, the switching between manual control and automatic control can be conveniently realized. In addition, the on-off of the main contact of the contactor KM is controlled by the temperature controller in the automatic control loop, so that the operation or the shutdown of an air conditioner motor is controlled, the ideal control of an air conditioner can be realized, and the electric energy is effectively saved.
Drawings
Fig. 1 is a schematic diagram of an energy-saving automatic control system for an air conditioner in a substation according to an embodiment of the present invention.
Detailed Description
The problem that operating personnel manual control exists is passed through to current transformer substation air conditioning system's operation, the utility model provides a transformer substation air conditioner energy-conserving automatic control system sets up parallel manual control return circuit and automatic control return circuit, makes air conditioner motor's control can manual control, also can automatic control to can make operating personnel operate as required in a flexible way. And, through automatic control, still can improve air conditioner control effect and save the electric energy.
As shown in fig. 1, the present invention is a schematic diagram of an energy-saving automatic control system for an air conditioner in a substation.
The system comprises: the device comprises a knife switch QF, a contactor KM, a thermal relay FH and a switch control unit;
the knife switch QF, the main contact of the contactor KM, a thermal relay FH heating element and an air conditioner motor are sequentially connected to form a main circuit; the knife switch QF is used for connecting a power supply;
wherein, the switch control unit, the normally closed contact of the thermal relay FH and the coil of the contactor KM are connected in sequence to form a control circuit; the switch control unit includes: the manual control unit and the automatic control unit are connected in parallel.
Wherein the manual control unit comprises: a first fuse FU1 and a manual module connected in series; the automatic control unit comprises; a second fuse FU2 and an automation module connected in series; one end of the first fuse FU1 is connected with one end of the second fuse FU2 and serves as an input end of the switch control unit; one end of the manual module is connected with one end of the automatic module and is used as the output end of the switch control unit; the input end of the switch control unit is connected with a control power supply access point L11, and the control power supply access point L11 is arranged between the knife switch QF and the main contact of the contactor KM; one end of the coil of the contactor KM is connected with a zero line N.
In a specific implementation, the manual module may include: a stop control unit and a start control unit connected in series; and two ends of a normally open auxiliary contact of the contactor KM are respectively connected with two ends of the starting control unit. As shown in fig. 1, the stop control unit may include: one or more stop buttons connected in series, two stop buttons being shown in fig. 1, respectively: a first stop button STP1 and a second stop button STP 2; the start control unit includes: one or more parallel-connected activation buttons, two activation buttons being shown in fig. 1, respectively: a first actuating button ST1 and a second actuating button ST 2.
It should be noted that, a plurality of start buttons and stop buttons can be respectively arranged in different space positions, which is convenient for the operator to operate in different spaces. For example, the first stop button STP1 and the first start button ST1 in the dashed box of fig. 1 may be provided on the field operation column to facilitate the operation of the operator at the present time, and the second stop button STP2 and the second start button ST2 may be provided in the office area.
Wherein, the automatic control unit WK may be implemented by a temperature controller, and the temperature controller may adopt any one of the following: a thermostatic controller (such as KTS-011 thermostatic controller), and a microcomputer temperature controller.
Compared with a constant temperature controller, the microcomputer temperature controller has a wider temperature adjusting range, for example, the microcomputer temperature controller with the range of minus 40 ℃ to 120 ℃ and the precision of plus or minus 0.1 ℃ can be adopted, and the air conditioner motor is switched on or switched off according to whether the temperature sensor detects the indoor environment temperature of the environment to reach a set value, so that a better control effect is achieved.
Further, in another embodiment of the present invention, the system may further include: a signal indication unit.
In a specific implementation manner, as shown in fig. 1, the signal indication unit may include: a first signal lamp HR; one end of the first signal lamp HR is connected with a zero line N, and the other end of the first signal lamp HR is connected with the output end of the switch control unit.
In a specific implementation manner, as shown in fig. 1, the signal indication unit may simultaneously include: the first signal lamp HR and the second signal lamp HG. One end of the second signal lamp HG is connected with the zero line N, the other end of the second signal lamp HG is connected with one end of the normally closed auxiliary contact of the contactor KM, and the other end of the normally closed auxiliary contact of the contactor KM is connected with the input end of the switch control unit.
The working process of the energy-saving automatic control system for the air conditioner of the substation according to the present invention will be described in detail with reference to the schematic diagram shown in fig. 1.
1. Manual control mode
In the manual mode, it is necessary to close first fuse FU1 and open second fuse FU 2.
When the first start button ST1 or the second start button ST2 is pressed, a coil of the contactor KM is electrified to attract a main contact, the main circuit is electrified to enable the air conditioner motor M to operate, the first indicator lamp HR is lightened, and the second indicator lamp HG is extinguished;
when the first stop button STP1 or the second stop button SP21 is pressed, the coil of the contactor KM loses power to release the main contact, and the main circuit loses power to stop the air conditioner motor M;
when the outgoing line of the air conditioner motor M is overloaded in the running process, the heating element of the thermal relay FH in the main circuit acts, the normally closed contact of the thermal relay FH in the control circuit is normally opened, the coil of the contactor KM loses power to release the main contact, and the main circuit loses power to stop the air conditioner motor M.
The control mode avoids the impact influence of the current when the air conditioner motor M is started and stopped on the circuit breaker, and meanwhile, the power supply can be timely cut off when the air conditioner motor M is overloaded, so that the air conditioner motor is effectively protected.
2. Automatic control mode
In the automatic control mode, the first fuse FU1 is required to be opened and the second fuse FU2 is required to be closed.
When the ambient temperature reaches the operating temperature set by the temperature controller, the temperature controller WK is closed, so that a loop formed by a normally closed contact of the thermal relay KH and a coil of the contactor KM is connected with a power supply, the coil of the contactor KM is electrified to be attracted, a main contact of the contactor KM is closed, an air conditioner motor M operates, and the temperature of the indoor environment begins to be reduced; when the indoor temperature is reduced to the shutdown temperature set by the temperature controller, the temperature controller WK is switched off, the control loop is powered off, the main contact of the contactor KM is switched off, and the air conditioner motor M is shut down; and circulating in sequence.
The utility model provides an energy-conserving automatic control system of electric substation air conditioner through setting up parallel manual control return circuit and automatic control return circuit, can realize opening the nimble control that stops to the air conditioner motor. When manual control is needed, a first fuse of the manual control loop is closed, and a second fuse of the automatic control loop is disconnected; on the contrary, when the automatic control is needed, the first fuse of the manual control loop is disconnected, and the second fuse of the automatic control loop is connected; therefore, the switching between manual control and automatic control can be conveniently realized. In addition, the on-off of the main contact of the contactor KM is controlled by the temperature controller in the automatic control loop, so that the operation or the shutdown of an air conditioner motor is controlled, the ideal control of an air conditioner can be realized, and the electric energy is effectively saved.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
The embodiments of the present invention have been described in detail, and the detailed description has been applied to the present invention, and the above description of the embodiments is only used to help understand the method and apparatus of the present invention, which is only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention, and the content of the description shall not be construed as a limitation to the present invention. Therefore, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an energy-conserving automatic control system of electric substation air conditioner for control air conditioner motor M, its characterized in that, the system includes: the device comprises a knife switch QF, a contactor KM, a thermal relay FH and a switch control unit;
the knife switch QF, the main contact of the contactor KM, a thermal relay FH heating element and an air conditioner motor are sequentially connected to form a main circuit; the knife switch QF is used for connecting a power supply;
wherein, the switch control unit, the normally closed contact of the thermal relay FH and the coil of the contactor KM are connected in sequence to form a control circuit; the switch control unit includes: the manual control unit and the automatic control unit are connected in parallel; the manual control unit includes: a first fuse FU1 and a manual module connected in series; the automatic control unit comprises; a second fuse FU2 and an automation module connected in series; one end of the first fuse FU1 is connected with one end of the second fuse FU2 and serves as an input end of the switch control unit; one end of the manual module is connected with one end of the automatic module and is used as the output end of the switch control unit; the input end of the switch control unit is connected with a control power supply access point, and the control power supply access point is arranged between the knife switch QF and the main contact of the contactor KM; one end of the coil of the contactor KM is connected with a zero line.
2. The substation air conditioning energy saving automatic control system of claim 1, wherein the manual module comprises: a stop control unit and a start control unit connected in series; and two ends of a normally open auxiliary contact of the contactor KM are respectively connected with two ends of the starting control unit.
3. The substation air conditioning energy saving automatic control system of claim 2, wherein the stop control unit comprises: one or more series-connected stop buttons; the start control unit includes: one or more parallel-connected activation buttons.
4. The substation air conditioning energy-saving automatic control system of claim 1, wherein the automatic control unit comprises: and (7) a temperature controller.
5. The automatic energy-saving control system for the air conditioners in the substation as claimed in claim 4, wherein the temperature controller is any one of the following: a constant temperature controller and a microcomputer temperature controller.
6. A substation air conditioning energy saving automatic control system according to any one of claims 1 to 5, characterized in that the system further comprises: a signal indication unit.
7. The automatic control system for energy conservation and air conditioning of substation of claim 6, wherein the signal indication unit comprises:
a first signal lamp; one end of the first signal lamp is connected with the zero line, and the other end of the first signal lamp is connected with the output end of the switch control unit.
8. The automatic control system for air conditioning and energy saving of substation of claim 7, wherein the signal indication unit further comprises:
a second signal lamp; one end of the second signal lamp is connected with the zero line, the other end of the second signal lamp is connected with one end of the normally closed auxiliary contact of the contactor KM, and the other end of the normally closed auxiliary contact of the contactor KM is connected with the input end of the switch control unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974207.6U CN212849313U (en) | 2020-09-10 | 2020-09-10 | Automatic energy-saving control system for air conditioner of substation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021974207.6U CN212849313U (en) | 2020-09-10 | 2020-09-10 | Automatic energy-saving control system for air conditioner of substation |
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| CN212849313U true CN212849313U (en) | 2021-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012160A (en) * | 2022-07-08 | 2022-09-06 | 台嘉玻璃纤维有限公司 | Control circuit and control device of glass fiber cloth edge ironing device |
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2020
- 2020-09-10 CN CN202021974207.6U patent/CN212849313U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012160A (en) * | 2022-07-08 | 2022-09-06 | 台嘉玻璃纤维有限公司 | Control circuit and control device of glass fiber cloth edge ironing device |
| CN115012160B (en) * | 2022-07-08 | 2023-09-26 | 台嘉玻璃纤维有限公司 | Control circuit and control equipment of glass fiber cloth edge ironing device |
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