Energy-saving control device for ventilation equipment at tail end of water-cooling air conditioner

Abstract

The utility model discloses an energy-saving control device for ventilation equipment at the tail end of a water-cooling air conditioner, which comprises at least one fresh air handling unit equipment control device, at least one exhaust unit equipment control device, at least one room control unit and a display control terminal, the display control terminal is connected with the fresh air handling unit equipment control device, the exhaust unit equipment control device and the room control unit through a special equipment network so as to achieve networking communication and regulation and control of data between the control devices and the units. Compared with the prior art, the display control terminal is arranged to be networked with the fresh air handling unit equipment control device, the exhaust unit equipment control device and the room control unit through the network and control the fresh air handling unit equipment control device, the exhaust unit equipment control device and the room control unit. Therefore, the complexity of installation and debugging of multiple sets of systems is overcome, the operation energy consumption of an air conditioner ventilation system in a room is greatly reduced, on-demand supply is achieved, and the air quality of the room is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of building electrical and building heating and ventilation technical field, in particular to a kind of energy-saving control device for water-cooled air conditioner terminal ventilation equipment. BACKGROUND

[0002] With the development of near-zero carbon, healthy building, indoor public space air conditioning ventilation system structure form is various, control requirement is complex and control precision is high, air conditioning ventilation system is responsible for handling indoor residual heat, residual moisture, air quality and odor, the fresh air volume required for excluding indoor residual heat, air odor and reducing CO2 concentration and the consistent trend of change, on the one hand, can be through the new air, while meeting the requirements of dehumidification, reducing CO2 concentration and excluding odor, on the other hand, can be realized by independent indoor temperature control mode to achieve the task of excluding indoor residual heat, conventional indoor temperature and ventilation are respectively independently controlled, need to be operated respectively when using, so that automatic control setting is more complex, cause great difficulty to construction, operation and maintenance management and daily use, can not adapt to the needs of such indoor environment space management. SUMMARY

[0003] The utility model discloses a kind of energy-saving control device for water-cooled air conditioner terminal ventilation equipment, to solve the deficiency of prior art.

[0004] To solve the above problems, the utility model adopts the following technical scheme: an energy-saving control device for water-cooled air conditioner terminal ventilation equipment, comprising at least one fresh air unit equipment control device, at least one exhaust air unit equipment control device, at least one room control unit, a display control terminal, the display control terminal is connected between the fresh air unit equipment control device, the exhaust air unit equipment control device and the room control unit through the equipment special network, to realize the networking communication and regulation and control of data between each control device and unit.

[0005] Further, the fresh air unit equipment control device includes a fresh air unit control box, a temperature sensor, a humidity sensor, a first differential pressure switch, a fan valve actuator, a water valve actuator, a fresh air unit power control box, the fresh air unit control box is connected with the temperature sensor, the humidity sensor, the first differential pressure switch, the fan valve actuator, the water valve actuator and the fresh air unit power control box through control line respectively, and the fresh air unit control box is connected with the exhaust air unit equipment control device, the room control unit and the display control terminal through the equipment special network.

[0006] Further, the exhaust fan unit equipment control device comprises an exhaust fan unit control box, a second differential pressure switch, a fan unit power control box, the exhaust fan unit control box is connected with the second differential pressure switch and the fan unit power control box through control lines, and the exhaust fan unit control box is connected with the fresh air fan unit equipment control device, the room control unit and the display control terminal through a device special network.

[0007] Further, the room control unit comprises a room controller, a fan coil control module, a power type fresh air module, a power type exhaust air module, a window magnetic switch, a room air quality sensor and a temperature and humidity sensor, the room controller is connected with the fan coil control module, the power type fresh air module, the power type exhaust air module, the window magnetic switch, the room air quality sensor and the room temperature and humidity sensor through control lines, and the room controller is connected with the fresh air fan unit equipment control device, the exhaust fan unit equipment control device and the display control terminal through a device special network.

[0008] Further, the room controller adopts a general PLC controller.

[0009] Compared with the prior art, the display control terminal is connected with the fresh air fan unit equipment control device, the exhaust fan unit equipment control device and the room control unit through a network and is controlled, one overall control system structure is adopted, two independent control subsystems (temperature and fresh air) arranged in the room are replaced, the complexity of multiple system installation and debugging is overcome, the operation energy consumption of the air conditioning ventilation system in the room is greatly reduced, on-demand supply is realized, and the room air quality is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The utility model is a structural diagram. DETAILED DESCRIPTION

[0011] The utility model will be further explained in detail in combination with the drawings and examples.

[0012] As Figure 1The utility model discloses a kind of energy-saving control devices for water-cooled air conditioner terminal ventilation equipment, including fresh air unit equipment control device 2, exhaust fan unit equipment control device 3, room control unit 4, display control terminal 1, display control terminal 1 is connected with fresh air unit equipment control device 2, exhaust fan unit equipment control device 3, room control unit 4 between through network communication cable and equipment special network, to realize the networking communication and linkage control between each control device, unit and display control terminal 1, room control unit 4 includes room controller 47, room controller 47 is general PLC controller, control logic program is written in it, the control logic program is conventional equipment class control program, such as realizing data collection, transmission and sending according to user input instruction. Room controller 47 is connected between fresh air unit equipment control device 2, exhaust fan unit equipment control device 3 and display control terminal 1 through equipment special network, room controller 47 is used for real-time monitoring to temperature, humidity and air quality in this room, and sends linkage control signal to fresh air unit equipment control device 2, exhaust fan unit equipment control device 3 according to real-time monitoring result, and linkage control signal can include adjusting the operating state in fresh air unit equipment control device 2, exhaust fan unit equipment control device 3 adjustment;Display control terminal 1 is used for display and user input setting parameter through display control terminal 1, and send to room controller 47, fresh air unit equipment control device 2, exhaust fan unit equipment control device 3, room controller 47, fresh air unit equipment control device 2, exhaust fan unit equipment control device 3 are regulated according to setting parameter after receiving setting parameter.

[0013] In the utility model, room control unit 4 can be one also can be multiple according to the number of rooms set by building.

[0014] In the utility model, display control terminal 1 can be display terminal with touch screen, and also can be terminal with input display function such as computer.

[0015] In the utility model, fresh air unit equipment control device 2, exhaust fan unit equipment control device 3 are equipped with multiple, are set according to floor quantity, of course, one fresh air unit equipment control device 2, exhaust fan unit equipment control device 3 can also be shared by multiple floors.

[0016] For example, Figure 1As shown, the fresh air handling unit equipment control device 2 includes a fresh air handling unit control box 27, a first temperature sensor 21, a humidity sensor 22, a first differential pressure switch 23, a fan valve actuator 24, a water valve actuator 25, a fresh air handling unit power control box 26, the fresh air handling unit control box 27 is connected to the temperature sensor 21, the humidity sensor 22, the first differential pressure switch 23, the fan valve actuator 24, the water valve actuator 25, and the fresh air handling unit power control box 26 through control lines to receive monitoring data sent by the temperature sensor 21, the humidity sensor 22, the first differential pressure switch 23, and parameters of the fresh air handling unit power control box 26, and send these detection data and parameters to the display control terminal 1 through the equipment special network for display, and the user can adjust the parameters of the fresh air handling unit equipment control device 2 through the display control terminal 1, and the fresh air handling unit control box 27 controls the fresh air handling unit through the fresh air handling unit power control box 26 after receiving the adjusted parameters. The fresh air handling unit control box 27 not only receives and controls the on-off or analog signals of the temperature sensor 21, the humidity sensor 22, the first differential pressure switch 23, the fan valve actuator 24, the water valve actuator 25, and the fresh air handling unit power control box 26, but also receives data sent by the room controller 47 and the exhaust air handling unit equipment control device 3 through the equipment special network, such as the linkage signal sent by the exhaust air handling unit control box 33 in the room controller 47 and the exhaust air handling unit equipment control device 3, and adjusts the operation frequency and start-stop control of the fresh air handling unit power control box 26.

[0017] The exhaust air handling unit equipment control device 3 includes an exhaust air handling unit control box 33, a second differential pressure switch 31, and a fan unit power control box 32, the exhaust air handling unit control box 33 is connected to the second differential pressure switch 31 and the fan unit power control box 32 through control lines, and the exhaust air handling unit control box 33 is connected to the fresh air handling unit control box 27, the room controller 47, and the display control terminal 1 through the equipment special network. The exhaust air handling unit control box 33 is used to receive on-off or analog signals of the second differential pressure switch 31 and the fan unit power control box 32, and send them to the display control terminal 1 through the equipment special network for display, the user adjusts the parameters of the exhaust air handling unit equipment control device 3 through the display control terminal 1, and the exhaust air handling unit control box 33 sends the adjusted parameters to the fan unit power control box 32 or the second differential pressure switch 31 after receiving the adjusted parameters and adjusts them. The exhaust air handling unit control box 33 can also receive linkage signals sent by the room controller 47 and the fresh air handling unit control box 27, and adjust the operation frequency and start-stop control of the fan unit power control box 32.

[0018] The room control unit 4 further comprises a fan coil control module 41, a powered fresh air module 42, a powered exhaust air module 43, a window magnetic switch 44, a room air quality sensor 45, a temperature and humidity sensor 46, and a room controller 47 connected with the fan coil control module 41, the powered fresh air module 42, the powered exhaust air module 43, the window magnetic switch 44, the room air quality sensor 45, and the room temperature and humidity sensor 46 through control lines respectively, and the room controller 47 is connected with the display control terminal 1, the fresh air handling unit control box 27, and the exhaust air handling unit control box 33 through a device special network.

[0019] The room controller 47 can receive or send signals to the fan coil control module 41, the powered fresh air module 42, the powered exhaust air module 43, and the window magnetic switch 44, and the room controller 47 sends the signals to the display control terminal 1 for display after receiving the signals, and in the utility model, the room controller 47 is integrated with the room air quality sensor 45 and the temperature and humidity sensor 46.

[0020] In operation, the fresh air handling unit control box 27, the exhaust air handling unit control box 33, the room controller 47, and the display control terminal 1 are connected through an Ethernet special interface to access a device special Ethernet (device special network) for unified centralized control and management, the fresh air handling unit control box 27 is connected with the fresh air handling unit power control box 26 through a networking mode, so that the fresh air handling unit power control box 26 controls outdoor fresh air to be processed by the fresh air handling unit and sent into the indoor, the fresh air handling unit control box 27 receives the temperature sensor 21 and the humidity sensor 22 to control the opening degree of the water valve actuator 25, the room controller 47 in the indoor receives digital signals of the temperature and humidity sensor 46 to control the indoor temperature in the region and link the linkage control of the fresh air handling unit control box 27, the room controller 47 in the indoor receives digital signals of the air quality sensor 45 to synchronize the powered fresh air module 42 and the powered exhaust air module 43 to adjust the number of revolutions of the end fresh air and exhaust air machine to meet the demand of the end air volume, the fresh air handling unit control box 27 automatically adjusts the main machine speed of the fresh air handling unit power control box 26 and the exhaust air handling unit power control box 32 according to the air volume demand of the powered fresh air module 42 and the powered exhaust air module 43 of each end to realize gradient pressure difference accurate control of airflow direction to maintain the air volume balance between the main machine and the end of the whole system, so as to keep the indoor air quality in a healthy and comfortable state all the time, and the room controller 4 receives the alarm signal of the window magnetic switch 44 to close the fan coil control module 41, the powered fresh air module 42, and the powered exhaust air module 43.

[0021] The room controller 47 completes the following control logic:

[0022] The room controller monitors the room temperature and humidity environment data through the temperature sensor and the humidity sensor, starts the room fan coil and the terminal power type fresh air and exhaust module to run according to the set value, adjusts the running speed of the terminal power type fresh air and exhaust module fan according to the data sent by the room air quality sensor, meets the demand of each terminal air volume, and simultaneously adjusts the frequency of the fresh air and exhaust fan according to the change of the demand of each terminal air volume. The room controller monitors the alarm signal of the window magnetic switch, and automatically closes the room fan coil and the terminal power type fresh air and exhaust module. The room controller monitors the running state of the room fan coil and the terminal power type fresh air and exhaust module, and links the start-stop control of the fresh air and exhaust fan groups.

[0023] The utility model discloses set up display control terminal through network with fresh air handling unit equipment control device, exhaust fan group equipment control device, room control unit networking and carry out control, constitute a whole control system structure, replace setting 2 independent control subsystem (temperature and fresh air) in the room respectively, thereby overcame the complexity of multiple system installation, debugging, greatly reduced the operation energy consumption of air conditioning ventilation system in the room, realized on-demand supply, guarantee room air quality.

Claims

1. An energy-saving control device for water-cooled air conditioning terminal ventilation equipment, characterized in that: The system comprises at least one fresh air handling unit device control device (2), at least one exhaust air handling unit device control device (3), at least one room control unit (4), and a display control terminal (1), wherein the display control terminal (1) is connected with the fresh air handling unit device control device (2), the exhaust air handling unit device control device (3) and the room control unit (4) through a device special network to realize the networking communication and regulation and control of data among the control devices and units.

2. The energy saving control device for water-cooled air conditioner terminal ventilation equipment according to claim 1, characterized in that: The fresh air handling unit device control device (2) comprises a fresh air handling unit control box (27), a temperature sensor (21), a humidity sensor (22), a first differential pressure switch (23), a wind valve actuator (24), a water valve actuator (25), and a fresh air handling unit power control box (26), wherein the fresh air handling unit control box (27) is connected with the temperature sensor (21), the humidity sensor (22), the first differential pressure switch (23), the wind valve actuator (24), the water valve actuator (25) and the fresh air handling unit power control box (26) through control lines, and the fresh air handling unit control box (27) is connected with the exhaust air handling unit device control device (3), the room control unit (4) and the display control terminal (1) through a device special network.

3. The energy saving control device for water-cooled air conditioner terminal ventilation equipment according to claim 1, characterized in that: The exhaust air handling unit device control device (3) comprises an exhaust air handling unit control box (33), a second differential pressure switch (31) and a fan unit power control box (32), wherein the exhaust air handling unit control box (33) is connected with the second differential pressure switch (31) and the fan unit power control box (32) through control lines, and the exhaust air handling unit control box (33) is connected with the fresh air handling unit device control device (2), the room control unit (4) and the display control terminal (1) through a device special network.

4. The energy saving control device for water-cooled air conditioner terminal ventilation equipment according to claim 1, characterized in that: The room control unit (4) comprises a room controller (47), a fan coil control module (41), a power type fresh air module (42), a power type exhaust air module (43), a window magnetic switch (44), a room air quality sensor (45) and a temperature and humidity sensor (46), wherein the room controller (47) is connected with the fan coil control module (41), the power type fresh air module (42), the power type exhaust air module (43), the window magnetic switch (44), the room air quality sensor (45) and the room temperature and humidity sensor (46) through control lines, and the room controller (47) is connected with the fresh air handling unit device control device (2), the exhaust air handling unit device control device (3) and the display control terminal (1) through a device special network.

5. The energy saving control device for water-cooled air conditioner terminal ventilation equipment according to claim 4, characterized in that: The room controller (47) adopts a general PLC controller.

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