CN106194809A - Intelligent HVAC distribution box for biomass power plants - Google Patents
Intelligent HVAC distribution box for biomass power plants Download PDFInfo
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Abstract
本发明涉及的生物质电厂用智能暖通配电箱，包括供电回路、控制回路、通讯控制模块、第二中间继电器、第三中间继电器和第四中间继电器，其中，供电回路包括热继电器FR1、接触器KM1a、断路器QF1、安装在断路器QF1上的分励脱扣器MXa；所述控制回路包括手动旋转开关SK1、手动开关TK1、手动开关TK2、分励脱扣器线圈MX、温控器、接触器的线圈KM1、第一中间继电器、熔断器FU1和熔断器FU2。本发明能合理控制通风风机工作，减少运行维护成本。且可在现场手动控制或远程遥控通风风机启动和停止。同时串接消防火灾报警系统信号，来实现通风风机与消防系统的联动，满足消防要求。
The intelligent heating and ventilation distribution box for biomass power plants involved in the present invention includes a power supply circuit, a control circuit, a communication control module, a second intermediate relay, a third intermediate relay and a fourth intermediate relay, wherein the power supply circuit includes thermal relays FR1, Contactor KM1a, circuit breaker QF1, shunt release MXa installed on circuit breaker QF1; the control circuit includes manual rotary switch SK1, manual switch TK1, manual switch TK2, shunt release coil MX, temperature control , the coil KM1 of the contactor, the first intermediate relay, the fuse FU1 and the fuse FU2. The invention can reasonably control the work of the ventilating fan and reduce operation and maintenance costs. And it can be manually controlled on site or remotely controlled to start and stop the ventilation fan. At the same time, the fire alarm system signal is connected in series to realize the linkage between the ventilation fan and the fire protection system to meet the fire protection requirements.
Description
技术领域technical field
本发明涉及供电设备技术领域，具体涉及一种生物质电厂用智能暖通配电箱。The invention relates to the technical field of power supply equipment, in particular to an intelligent heating and ventilation distribution box for a biomass power plant.
背景技术Background technique
目前生物质电厂的配电室、控制室、辅助厂房等建筑物内一般都设置有通风风机(每台风机功率一般<3kW)，由风机电源箱提供电源，手动控制开启。在工程实际中，因室外环境温度和设备工作时散热因素，室内温度容易超过设备正常工作温度要求，若通风风机未能及时开启，会导致设备无法正常工作。同时，为了实现通风风机电源箱智能化，需要远程控制风机电源箱。因此，合理控制通风风机工作，减少运行维护成本，以及满足暖通通风风机与消防联动的要求、与集控室通讯的要求值得探讨。At present, the power distribution room, control room, auxiliary workshop and other buildings of biomass power plants are generally equipped with ventilation fans (the power of each fan is generally <3kW), and the power supply is provided by the fan power box, which is manually controlled to open. In engineering practice, due to the outdoor ambient temperature and heat dissipation factors during equipment operation, the indoor temperature is likely to exceed the normal operating temperature requirements of the equipment. If the ventilation fan is not turned on in time, the equipment will not work normally. At the same time, in order to realize the intelligence of the ventilation fan power box, it is necessary to remotely control the fan power box. Therefore, it is worth exploring to reasonably control the work of ventilation fans, reduce operation and maintenance costs, and meet the requirements of linkage between HVAC ventilation fans and fire protection, and communication with the central control room.
发明内容Contents of the invention
本发明的目的在于提供一种生物质电厂用智能暖通配电箱，该配电箱能合理控制通风风机工作，减少运行维护成本。The purpose of the present invention is to provide an intelligent heating and ventilation distribution box for a biomass power plant, which can reasonably control the operation of the ventilation fan and reduce operation and maintenance costs.
为解决上述技术问题，本发明公开的一种生物质电厂用智能暖通配电箱，其特征在于：它包括供电回路、控制回路、通讯控制模块、第二中间继电器、第三中间继电器和第四中间继电器，其中，供电回路包括热继电器FR1、接触器KM1a、断路器QF1、安装在断路器QF1上的分励脱扣器MXa；所述控制回路包括手动旋转开关SK1、手动开关TK1、手动开关TK2、分励脱扣器线圈MX、温控器KH1、接触器的线圈KM1、第一中间继电器、熔断器FU1和熔断器FU2；In order to solve the above technical problems, the invention discloses an intelligent HVAC distribution box for biomass power plants, which is characterized in that it includes a power supply circuit, a control circuit, a communication control module, a second intermediate relay, a third intermediate relay and a first Four intermediate relays, wherein the power supply circuit includes thermal relay FR1, contactor KM1a, circuit breaker QF1, shunt release MXa installed on circuit breaker QF1; the control circuit includes manual rotary switch SK1, manual switch TK1, manual Switch TK2, shunt release coil MX, thermostat KH1, contactor coil KM1, first intermediate relay, fuse FU1 and fuse FU2;
其中，供电电源的A相、B相和C相与通风风机对应的通风风机电源接口之间均依次串联断路器QF1、接触器KM1a和热继电器FR1；Among them, the circuit breaker QF1, contactor KM1a and thermal relay FR1 are connected in series between the phase A, phase B and phase C of the power supply and the power interface of the ventilation fan corresponding to the ventilation fan;
手动开关TK1的一端通过热继电器的第一常开接点FR1a连接供电电源的A相，供电电源的A相与热继电器的第一常开接点FR1a之间设置熔断器FU1，手动开关TK1的另一端分别连接温控器KH1的第一接线端、手动旋转开关SK1常开接点的一端、手动旋转开关SK1常闭接点的一端，温控器输出常开接点KH1a的一端，第四中间继电器的第一常开接点KA4a的一端；One end of the manual switch TK1 is connected to the A phase of the power supply through the first normally open contact FR1a of the thermal relay, and a fuse FU1 is set between the A phase of the power supply and the first normally open contact FR1a of the thermal relay, and the other end of the manual switch TK1 Connect the first terminal of the thermostat KH1, one end of the normally open contact of the manual rotary switch SK1, one end of the normally closed contact of the manual rotary switch SK1, one end of the thermostat output normally open contact KH1a, and the first terminal of the fourth intermediate relay. One end of normally open contact KA4a;
温控器输出常开接点KH1a的另一端连接接触器的线圈KM1的一端，手动旋转开关SK1常开接点的另一端连接手动开关TK2的一端，手动开关TK2的另一端连接接触器的线圈KM1的一端，手动旋转开关SK1常闭接点的另一端连接第二中间继电器第一常开接点KA2a的一端，第二中间继电器第一常开接点KA2a的另一端连接第三中间继电器常闭接点KA3a的一端，第三中间继电器常闭接点KA3a的另一端连接接触器的线圈KM1的一端，第二中间继电器第一常开接点KA2a的一端连接第一中间继电器线圈KA1的一端，第四中间继电器的第一常开接点KA4a的另一端连接分励脱扣器线圈MX的一端；The other end of the thermostat output normally open contact KH1a is connected to one end of the coil KM1 of the contactor, the other end of the normally open contact of the manual rotary switch SK1 is connected to one end of the manual switch TK2, and the other end of the manual switch TK2 is connected to the coil KM1 of the contactor One end, the other end of the normally closed contact of the manual rotary switch SK1 is connected to one end of the first normally open contact KA2a of the second intermediate relay, and the other end of the first normally open contact KA2a of the second intermediate relay is connected to one end of the third intermediate relay normally closed contact KA3a , the other end of the normally closed contact KA3a of the third intermediate relay is connected to one end of the coil KM1 of the contactor, one end of the first normally open contact KA2a of the second intermediate relay is connected to one end of the coil KA1 of the first intermediate relay, and the first end of the fourth intermediate relay The other end of the normally open contact KA4a is connected to one end of the coil MX of the shunt release;
接触器的线圈KM1的另一端、第一中间继电器线圈KA1的另一端、分励脱扣器线圈MX的另一端、温控器KH1的第二接线端均连接熔断器FU2的一端，熔断器FU2的另一端连接供电电源的N相；The other end of the coil KM1 of the contactor, the other end of the first intermediate relay coil KA1, the other end of the shunt release coil MX, and the second terminal of the thermostat KH1 are all connected to one end of the fuse FU2, and the fuse FU2 The other end is connected to the N-phase of the power supply;
第一中间继电器的常开接点KA1a的两端连接通信控制模块M的远方就绪信号触发端，通信控制模块M的内部控制器M1的第一接线点的一端连接通信控制模块电源正极，内部控制器M1的第一接线点的另一端连接第二中间继电器线圈KA2的一端，第二中间继电器线圈KA2的另一端连接通信控制模块电源负极，内部控制器M1的第二接线点的一端连接通信控制模块电源正极，内部控制器M1的第二接线点的另一端连接第三中间继电器线圈KA3的一端，第三中间继电器线圈KA3的另一端连接通信控制模块电源负极；Both ends of the normally open contact KA1a of the first intermediate relay are connected to the trigger terminal of the remote ready signal of the communication control module M, and one end of the first connection point of the internal controller M1 of the communication control module M is connected to the positive pole of the power supply of the communication control module, and the internal controller The other end of the first connection point of M1 is connected to one end of the second intermediate relay coil KA2, the other end of the second intermediate relay coil KA2 is connected to the negative pole of the power supply of the communication control module, and one end of the second connection point of the internal controller M1 is connected to the communication control module The positive pole of the power supply, the other end of the second connection point of the internal controller M1 is connected to one end of the third intermediate relay coil KA3, and the other end of the third intermediate relay coil KA3 is connected to the negative pole of the power supply of the communication control module;
第二中间继电器第二常开接点KA2b的两端连接通信控制模块M的远方启动信号通信端，第三中间继电器常开接点KA3b的两端连接通信控制模块M的远方停止信号通信端，第四中间继电器的第二常开接点KA4b的两端连接通信控制模块M的火灾报警信号通信端。The two ends of the second normally open contact KA2b of the second intermediate relay are connected to the remote start signal communication end of the communication control module M, the two ends of the third intermediate relay normally open contact KA3b are connected to the remote stop signal communication end of the communication control module M, and the fourth Both ends of the second normally open contact KA4b of the intermediate relay are connected to the fire alarm signal communication end of the communication control module M.
本发明的有益效果：Beneficial effects of the present invention:
本发明用于生物质电厂配电室、控制室、辅助厂房等建筑物内暖通通风风机供电及控制。本发明中通风风机正常时采用自动远方控制。自动远方控制时，一种情况是当室内温度超过设备正常工作温度限值(35℃)时，通风风机自动接通电源开始工作；另一种情况是当室内温度没超过限值(35℃)或温控器故障时远方操作发出起停信号控制风机停止和启动。本发明也可在现场手动控制通风风机启动和停止。同时，通过在通讯控制模块回路中串接消防火灾报警系统信号，来实现通风风机与消防系统的联动，即可满足消防要求。The invention is used for power supply and control of HVAC fans in buildings such as power distribution rooms, control rooms and auxiliary workshops of biomass power plants. In the present invention, the ventilation fan adopts automatic remote control when it is normal. In the case of automatic remote control, one case is when the indoor temperature exceeds the normal operating temperature limit (35°C) of the equipment, the ventilation fan is automatically powered on and starts to work; the other case is when the indoor temperature does not exceed the limit (35°C) Or when the thermostat fails, the remote operation sends a start-stop signal to control the fan to stop and start. The present invention can also manually control the ventilation blower to start and stop on the spot. At the same time, by connecting the fire alarm system signal in series in the communication control module circuit, the linkage between the ventilation fan and the fire protection system can be realized, which can meet the fire protection requirements.
附图说明Description of drawings
图1为本发明中供电回路的电气结构示意图；Fig. 1 is the electrical structure schematic diagram of power supply circuit among the present invention;
图2为本发明中控制回路的电气结构示意图；Fig. 2 is the electrical structure schematic diagram of control circuit among the present invention;
图3为本发明中通讯控制模块的电气结构示意图；3 is a schematic diagram of the electrical structure of the communication control module in the present invention;
图4位本发明中通讯控制模块控制部分的电气结构示意图；Fig. 4 is a schematic diagram of the electrical structure of the control part of the communication control module in the present invention;
具体实施方式detailed description
以下结合附图和具体实施例对本发明作进一步的详细说明：Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
本发明的生物质电厂用智能暖通配电箱，如图1～4所示，它包括供电回路、控制回路、通讯控制模块、第二中间继电器、第三中间继电器和第四中间继电器，其中，供电回路包括热继电器FR1、接触器KM1a、断路器QF1、安装在断路器QF1上的分励脱扣器MXa；所述控制回路包括手动旋转开关SK1(本地/远方切换按钮，带有485通信接口)、手动开关TK1、手动开关TK2、分励脱扣器线圈MX、温控器KH1、接触器的线圈KM1、第一中间继电器、熔断器FU1和熔断器FU2；The intelligent HVAC distribution box for biomass power plants of the present invention, as shown in Figures 1 to 4, includes a power supply circuit, a control circuit, a communication control module, a second intermediate relay, a third intermediate relay and a fourth intermediate relay, wherein , the power supply circuit includes thermal relay FR1, contactor KM1a, circuit breaker QF1, and shunt release MXa installed on circuit breaker QF1; the control circuit includes manual rotary switch SK1 (local/remote switching button, with 485 communication interface), manual switch TK1, manual switch TK2, shunt release coil MX, thermostat KH1, contactor coil KM1, first intermediate relay, fuse FU1 and fuse FU2;
其中，供电电源的A相、B相和C相与通风风机对应的通风风机电源接口之间均依次串联断路器QF1、接触器KM1a和热继电器FR1；Among them, the circuit breaker QF1, contactor KM1a and thermal relay FR1 are connected in series between the phase A, phase B and phase C of the power supply and the power interface of the ventilation fan corresponding to the ventilation fan;
手动开关TK1的一端通过热继电器的第一常开接点FR1a连接供电电源的A相，供电电源的A相与热继电器的第一常开接点FR1a之间设置熔断器FU1，手动开关TK1的另一端分别连接温控器KH1的第一接线端、手动旋转开关SK1常开接点的一端、手动旋转开关SK1常闭接点的一端，温控器输出常开接点KH1a的一端，第四中间继电器的第一常开接点KA4a的一端；One end of the manual switch TK1 is connected to the A phase of the power supply through the first normally open contact FR1a of the thermal relay, and a fuse FU1 is set between the A phase of the power supply and the first normally open contact FR1a of the thermal relay, and the other end of the manual switch TK1 Connect the first terminal of the thermostat KH1, one end of the normally open contact of the manual rotary switch SK1, one end of the normally closed contact of the manual rotary switch SK1, one end of the thermostat output normally open contact KH1a, and the first terminal of the fourth intermediate relay. One end of normally open contact KA4a;
温控器输出常开接点KH1a的另一端连接接触器的线圈KM1的一端，手动旋转开关SK1常开接点的另一端连接手动开关TK2的一端，手动开关TK2的另一端连接接触器的线圈KM1的一端，手动旋转开关SK1常闭接点的另一端连接第二中间继电器第一常开接点KA2a的一端，第二中间继电器第一常开接点KA2a的另一端连接第三中间继电器常闭接点KA3a的一端，第三中间继电器常闭接点KA3a的另一端连接接触器的线圈KM1的一端，第二中间继电器第一常开接点KA2a的一端连接第一中间继电器线圈KA1的一端，第四中间继电器的第一常开接点KA4a的另一端连接分励脱扣器线圈MX的一端；The other end of the thermostat output normally open contact KH1a is connected to one end of the coil KM1 of the contactor, the other end of the normally open contact of the manual rotary switch SK1 is connected to one end of the manual switch TK2, and the other end of the manual switch TK2 is connected to the coil KM1 of the contactor One end, the other end of the normally closed contact of the manual rotary switch SK1 is connected to one end of the first normally open contact KA2a of the second intermediate relay, and the other end of the first normally open contact KA2a of the second intermediate relay is connected to one end of the third intermediate relay normally closed contact KA3a , the other end of the normally closed contact KA3a of the third intermediate relay is connected to one end of the coil KM1 of the contactor, one end of the first normally open contact KA2a of the second intermediate relay is connected to one end of the coil KA1 of the first intermediate relay, and the first end of the fourth intermediate relay The other end of the normally open contact KA4a is connected to one end of the coil MX of the shunt release;
接触器的线圈KM1的另一端、第一中间继电器线圈KA1的另一端、分励脱扣器线圈MX的另一端、温控器KH1的第二接线端均连接熔断器FU2的一端，熔断器FU2的另一端连接供电电源的N相；The other end of the coil KM1 of the contactor, the other end of the first intermediate relay coil KA1, the other end of the shunt release coil MX, and the second terminal of the thermostat KH1 are all connected to one end of the fuse FU2, and the fuse FU2 The other end is connected to the N-phase of the power supply;
第一中间继电器的常开接点KA1a的两端连接通信控制模块M的远方就绪信号触发端，通信控制模块M的内部控制器M1的第一接线点的一端连接通信控制模块电源正极，内部控制器M1的第一接线点的另一端连接第二中间继电器线圈KA2的一端，第二中间继电器线圈KA2的另一端连接通信控制模块电源负极，内部控制器M1的第二接线点的一端连接通信控制模块电源正极(+24V)，内部控制器M1的第二接线点的另一端连接第三中间继电器线圈KA3的一端，第三中间继电器线圈KA3的另一端连接通信控制模块电源负极(-24V)；Both ends of the normally open contact KA1a of the first intermediate relay are connected to the trigger terminal of the remote ready signal of the communication control module M, and one end of the first connection point of the internal controller M1 of the communication control module M is connected to the positive pole of the power supply of the communication control module, and the internal controller The other end of the first connection point of M1 is connected to one end of the second intermediate relay coil KA2, the other end of the second intermediate relay coil KA2 is connected to the negative pole of the power supply of the communication control module, and one end of the second connection point of the internal controller M1 is connected to the communication control module The positive pole of the power supply (+24V), the other end of the second connection point of the internal controller M1 is connected to one end of the third intermediate relay coil KA3, and the other end of the third intermediate relay coil KA3 is connected to the negative pole of the communication control module power supply (-24V);
第二中间继电器第二常开接点KA2b的两端连接通信控制模块M的远方启动信号通信端，第三中间继电器常开接点KA3b的两端连接通信控制模块M的远方停止信号通信端，第四中间继电器的第二常开接点KA4b的两端连接通信控制模块M的火灾报警信号通信端。The two ends of the second normally open contact KA2b of the second intermediate relay are connected to the remote start signal communication end of the communication control module M, the two ends of the third intermediate relay normally open contact KA3b are connected to the remote stop signal communication end of the communication control module M, and the fourth Both ends of the second normally open contact KA4b of the intermediate relay are connected to the fire alarm signal communication end of the communication control module M.
上述技术方案中，通信控制模块M的内部火警信号接点M2的一端连接通信控制模块电源正极，通信控制模块M的内部火警信号接点M2的另一端连接第四中间继电器线圈KA4的一端，第四中间继电器线圈KA4的另一端通信控制模块电源负极。In the above technical solution, one end of the internal fire alarm signal contact M2 of the communication control module M is connected to the positive pole of the communication control module power supply, and the other end of the internal fire alarm signal contact M2 of the communication control module M is connected to one end of the fourth intermediate relay coil KA4, and the fourth intermediate The other end of the relay coil KA4 is the negative pole of the power supply of the communication control module.
上述技术方案中，接触器的辅助常闭接点KM1b的一端连接手动开关TK1的另一端，接触器的辅助常闭接点KM1b的另一端连接信号灯HR1的一端，信号灯HR1的另一端连接熔断器FU2的一端。In the above technical solution, one end of the auxiliary normally closed contact KM1b of the contactor is connected to the other end of the manual switch TK1, the other end of the auxiliary normally closed contact KM1b of the contactor is connected to one end of the signal lamp HR1, and the other end of the signal lamp HR1 is connected to the fuse FU2 one end.
上述技术方案中，接触器的辅助常开接点KM1c的一端连接手动开关TK1的另一端，接触器的辅助常开接点KM1c的另一端连接断路器QF1的一端，断路器QF1的另一端连接热继电器的第二常开接点FR1b的一端，继电器的第二常开接点FR1b的另一端连接信号灯HG1的一端，信号灯HG1的另一端连接熔断器FU2的一端。In the above technical solution, one end of the auxiliary normally open contact KM1c of the contactor is connected to the other end of the manual switch TK1, the other end of the auxiliary normally open contact KM1c of the contactor is connected to one end of the circuit breaker QF1, and the other end of the circuit breaker QF1 is connected to the thermal relay One end of the second normally open contact FR1b of the relay, the other end of the second normally open contact FR1b of the relay is connected to one end of the signal lamp HG1, and the other end of the signal lamp HG1 is connected to one end of the fuse FU2.
上述技术方案中，热继电器的常闭接点FR1c的一端连接手动开关TK1的另一端，热继电器的常闭接点FR1c的另一端连接信号灯HR2的一端，信号灯HR2的另一端连接熔断器FU2的一端。In the above technical solution, one end of the normally closed contact FR1c of the thermal relay is connected to the other end of the manual switch TK1, the other end of the normally closed contact FR1c of the thermal relay is connected to one end of the signal lamp HR2, and the other end of the signal lamp HR2 is connected to one end of the fuse FU2.
上述技术方案中，第一中间继电器线圈KA1的另一端与熔断器FU2的一端之间连接有信号灯HG2。所述通信控制模块M的电源模块连接供电电源的A相和N相。所述通信控制模块M具有RS485通信接口。In the above technical solution, a signal lamp HG2 is connected between the other end of the first intermediate relay coil KA1 and one end of the fuse FU2. The power supply module of the communication control module M is connected with phase A and phase N of the power supply. The communication control module M has an RS485 communication interface.
上述技术方案中，所述手动开关TK1和手动开关TK2安装于生物质电厂室外的门口。当火灾信号解除后，巡检人员可现场手动开启进行排烟，也可手动停止，方便巡检人员检视，保障巡检人员人身安全。In the above technical solution, the manual switch TK1 and the manual switch TK2 are installed at the outdoor door of the biomass power plant. When the fire signal is released, the inspectors can manually open it on site to exhaust the smoke, or manually stop it, which is convenient for the inspectors to inspect and ensure the personal safety of the inspectors.
上述技术方案中，所述温控器KH1的控制触发温度为35℃。In the above technical solution, the control trigger temperature of the thermostat KH1 is 35°C.
本发明的工作过程为：断路器QF1一般情况下为闭合状态，供电回路的短路电流保护等主保护由断路器QF1实现，接触器仅作为开关的控制回路之用，风机的过载保护由热继电器FR1保护。正常工作状态下，断路器QF1闭合，手动旋转开关SK1转到自动模式，第一中间继电器线圈KA1通电，通过通信控制模块M发送远方就绪信号。远方将启动信号发送至通信控制模块M，使第二中间继电器线圈KA2通电，第二中间继电器第一常开接点KA2a闭合，接触器的线圈KM1通电，风机启动，信号灯HG2灯亮，指示风机工作状态。远方发送停止信号时，使第三中间继电器线圈KA3通电，第三中间继电器常闭接点KA3a断开，接触器的线圈KM1断电，风机停止。手动旋转开关SK1转到手动模式时，手动开关TK2闭合，接触器的线圈KM1通电，风机通电启动。在自动和手动模式控制回路中，均并接温控器输出常开接点KH1a，当周围环境温度超过温控器KH1设置的温度参数(35℃)时，温控器输出常开接点KH1a闭合，接触器的线圈KM1接通电源，接触器KM1a动作，各输出回路供电。当发生火灾报警时，远方发送火灾报警信号，第四中间继电器线圈KA4通电，第四中间继电器的第一常开接点KA4a闭合，分励脱扣器线圈MX通电同时动作断路器QF1跳闸，风机供电回路断电，通风风机停止工作。另外，在控制回路中串接热继电器的第一常开接点FR1a和手动开关TK1，在风机过载时，热继电器的第一常开接点FR1a断开，从而断开控制回路，使接触器的线圈KM1断电；在紧急情况下，可通过手动开关TK1现场紧急停止风机。同时还设置了风机过载指示，当风机过载时，热继电器的常闭接点FR1c闭合，信号灯HR1和信号灯HR2灯亮，指示因过载停止。The working process of the present invention is as follows: the circuit breaker QF1 is generally closed, the main protection such as the short circuit current protection of the power supply circuit is realized by the circuit breaker QF1, the contactor is only used as the control circuit of the switch, and the overload protection of the fan is provided by the thermal relay FR1 protection. Under normal working conditions, the circuit breaker QF1 is closed, the manual rotary switch SK1 is turned to the automatic mode, the first intermediate relay coil KA1 is energized, and the remote ready signal is sent through the communication control module M. Remotely send the start signal to the communication control module M to energize the coil KA2 of the second intermediate relay, the first normally open contact KA2a of the second intermediate relay is closed, the coil KM1 of the contactor is energized, the fan starts, and the signal lamp HG2 lights up to indicate the working status of the fan . When the stop signal is sent from a remote place, the coil KA3 of the third intermediate relay is energized, the normally closed contact KA3a of the third intermediate relay is disconnected, the coil KM1 of the contactor is de-energized, and the fan stops. When the manual rotary switch SK1 turns to the manual mode, the manual switch TK2 is closed, the coil KM1 of the contactor is energized, and the fan is energized and started. In the automatic and manual mode control loops, the thermostat output normally open contact KH1a is connected in parallel. When the ambient temperature exceeds the temperature parameter (35°C) set by the thermostat KH1, the thermostat output normally open contact KH1a is closed. The coil KM1 of the contactor is powered on, the contactor KM1a operates, and each output circuit supplies power. When a fire alarm occurs, a fire alarm signal is sent from a remote place, the coil KA4 of the fourth intermediate relay is energized, the first normally open contact KA4a of the fourth intermediate relay is closed, the coil MX of the shunt release is energized and the circuit breaker QF1 trips at the same time, and the fan supplies power The circuit is powered off and the ventilation fan stops working. In addition, the first normally open contact FR1a of the thermal relay and the manual switch TK1 are connected in series in the control circuit. When the fan is overloaded, the first normally open contact FR1a of the thermal relay is disconnected, thereby disconnecting the control circuit and making the coil of the contactor KM1 is powered off; in case of emergency, the fan can be emergency stopped on site through the manual switch TK1. At the same time, a fan overload indicator is also set. When the fan is overloaded, the normally closed contact FR1c of the thermal relay is closed, and the signal lamp HR1 and the signal lamp HR2 are on, indicating that it has stopped due to overload.
手动操作是在在巡检人员巡检时根据实际要求操作，接着根据需要断开或闭合各回路断路器。Manual operation is to operate according to the actual requirements during the patrol inspection, and then open or close each circuit breaker as required.
参看附图3，消防联动智能暖通配电箱包括控制箱主体，在箱体正面布有门锁，铭牌，且专门设置一透明窗口，巡检人员可透过窗口查看箱内情况。另外，手动开关TK1、TK2设置于室外门口，当火灾信号解除后，巡检人员可现场手动开启进行排烟，也可手动停止，方便巡检人员检视，保障巡检人员人身安全。Referring to attached drawing 3, the fire-fighting linkage intelligent HVAC power distribution box includes the main body of the control box. There are door locks and nameplates on the front of the box, and a transparent window is specially set up. The inspectors can check the situation inside the box through the window. In addition, the manual switches TK1 and TK2 are set at the outdoor door. When the fire signal is released, the inspectors can manually open it for smoke exhaust on site, or manually stop it, which is convenient for inspectors to inspect and ensure the personal safety of inspectors.
本发明能合理控制风机启停，减少运行维护成本。另外，可远程/就地两种控制方式，实现智能控制。同时，本发明与消防联锁，满足消防要求。The invention can reasonably control the start and stop of the fan and reduce the operation and maintenance cost. In addition, remote/local control methods can be used to realize intelligent control. Simultaneously, the present invention is interlocked with fire protection to meet fire protection requirements.
以上实施例仅供说明本发明之用，而非对本发明的限制，有关技术领域的技术人员，在不脱离本发明的精神和范围的情况下，还可以做出各种变换或变型，因此所有等同的技术方案，都落入本发明的保护范围。The above embodiments are only for the purpose of illustrating the present invention, rather than limiting the present invention. Those skilled in the relevant technical fields can also make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions all fall within the protection scope of the present invention.
本说明书未作详细描述的内容属于本领域专业技术人员公知的现有技术。The content not described in detail in this specification belongs to the prior art known to those skilled in the art.
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