Practical training examination equipment for central air conditioner

Abstract

The utility model relates to the field of automatic temperature control devices, in particular to a central air-conditioning practical training assessment device, which comprises a cooling tower, a water chilling unit, an air cabinet, a simulation room and a control cabinet, one side of the cooling tower is connected with the cooling unit through a water return port 1, a water outlet 1 and an external water replenishing pipe, one side of the cooling unit is connected with the air cabinet, and the other side of the cooling unit is connected with the simulation room. One side of the air cabinet is connected with the simulation room through an exhaust pipe, and the cooling tower, the water chilling unit, the air cabinet and the simulation room are all connected with the control cabinet. According to the utility model, the cooling tower, the water chilling unit, the air cabinet, the simulation room and the control cabinet are used for controlling and adjusting the refrigeration and heating functions of the equipment, and meanwhile, the control cabinet adopts the PLC as a main control system, so that the control cabinet is more reliable than the traditional control cabinet, and can realize real-time control by combining with an industrial touch screen, thereby effectively increasing the refrigeration and heating efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic temperature control devices, in particular to a central air-conditioning training and assessment device. Background Art

[0002] The central air-conditioning training and assessment equipment is a product developed and researched in accordance with the teaching, training and experimental requirements of vocational and undergraduate colleges in combination with production reality and professional position skills requirements, and is the result of relevant skills competitions. This equipment is suitable for practical training in refrigeration technology, refrigeration fluid machinery, principles and maintenance of household refrigeration equipment, cold storage and refrigeration technology, refrigeration equipment maintenance workers and other majors in higher vocational colleges, vocational schools and undergraduate colleges.

[0003] The central air-conditioning training and assessment equipment miniaturizes the central air-conditioning structure, while ensuring its integrity and the rationality of the system as well as the visual and clear operation. It greatly facilitates students' understanding of the composition, functions and operation of each circulation system of the central air-conditioning.

[0004] At present, the existing traditional conventional assessment equipment can already meet the general teaching needs, but in the actual application process, there are still some defects:

[0005] Among them, the main problems of traditional equipment are that they are too large and fully enclosed, the teaching is not intuitive, and the use efficiency is low. At the same time, the functions and operating systems of traditional assessment equipment are not comprehensive, and the cooling and heating efficiency is low. Therefore, there is an urgent need for a central air-conditioning training and assessment equipment. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a central air-conditioning training and assessment device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A central air-conditioning training and assessment device comprises a cooling tower, a chiller, a wind cabinet, a simulation room, and a control cabinet, wherein one side of the cooling tower is connected to the chiller through a return water port-1, a water outlet-1, and an external water supply pipe, one side of the chiller is connected to the wind cabinet, and one side of the wind cabinet is connected to the simulation room through an exhaust pipe, wherein the cooling tower, the chiller, the wind cabinet, and the simulation room are all connected to the control cabinet.

[0009] In addition, a preferred structure is that an external water supply pipe is provided on the external side of the cooling tower, the external water supply pipe is connected to the chiller, and a return water port-1 and a water outlet-1 are provided at the bottom of the cooling tower.

[0010] In addition, a preferred structure is that the water return port-1 is connected to the condenser in the chiller, and the water outlet-1 is connected to the water pump group in the chiller.

[0011] In addition, a preferred structure is that the bottom of the cooling tower is fixedly mounted on the main frame, a ball valve is provided on one side of the bottom of the main frame, the ball valve is connected to the water inlet, and a plurality of movable casters are installed at the bottom of the main frame.

[0012] In addition, a preferred structure is that the chiller includes a compressor, an expansion water tank, a heater assembly, a water pump group, a condenser, and a first evaporator, wherein the first evaporator is connected to a second evaporator arranged in a wind cabinet on one side through a water outlet-2, one side of the second evaporator is connected to a return water port-2 arranged in the water pump group, and the other side of the water pump group is connected to the cooling tower through a water outlet-1.

[0013] In addition, a preferred structure is that the bottom of the heater assembly is connected to the water pump assembly and the first evaporator respectively through connecting water pipes, and movable casters are provided at the bottom of the heater assembly and the chiller.

[0014] In addition, a preferred structure is that an electric damper is provided on one side of the upper portion of the wind cabinet, and an installation cabinet is provided in the middle portion, a humidifier, a fan and a second evaporator are respectively provided inside the cabinet, wherein the electric damper is respectively connected to the humidifier, the fan and the second evaporator, and a transparent cover is rotatably installed on one side of the cabinet, and movable casters are provided at the bottom of the cabinet.

[0015] In addition, a preferred structure is that a water outlet-3 and a water return port-3 are respectively provided on one side of the wind cabinet, wherein the water outlet-3 and the water return port-3 are respectively connected to the water outlet-2 and the water return port-2 provided in the chiller through water pipes.

[0016] In addition, a preferred structure is that one side of the wind cabinet is connected to an exhaust duct, the other side of the exhaust duct is connected to the simulation room, and the wind cabinet and the simulation room are connected by a manual wind damper, wherein a transparent door is rotatably provided on one side of the simulation room.

[0017] In addition, a preferred structure is that the control cabinet is connected to the cooling tower, the chiller, the wind cabinet, and the simulation room respectively through electrical signals.

[0018] The beneficial effects of the utility model are:

[0019] In the utility model, the cooling tower, chiller, wind cabinet, simulation room and control cabinet are used to control and adjust the cooling and heating functions of the equipment. At the same time, the control cabinet adopts a PLC programmable controller as the main control system, which is more reliable than the traditional one. It can be controlled in real time by combining with the industrial touch screen, which effectively increases the cooling and heating efficiency.

[0020] At the same time, by arranging movable casters at the bottom of each equipment group, the equipment can be moved conveniently, which increases practicality. The cooling tower, chiller, wind cabinet, simulation room, and control cabinet all adopt an open setting, which makes teaching more intuitive, convenient for maintenance operation and demonstration, and can provide more precise results.

[0021] At the same time, the door panels of the wind cabinet and the simulation room are made of transparent materials, which are highly intuitive and have high teaching efficiency. Through the simulation room, one can intuitively feel the cooling and heating effects of the system, and can also clearly feel the changes in temperature regulation. At the same time, it can also avoid the energy waste caused by the lack of a closed environment for air conditioning, and can provide more accurate parameters and effects for teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall equipment structure of a central air-conditioning training and assessment equipment proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the cooling tower assembly structure of a central air-conditioning training and assessment equipment proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of a chiller unit component of a central air-conditioning training and assessment equipment proposed by the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of a wind cabinet component of a central air-conditioning training and assessment equipment proposed by the utility model;

[0026] Figure 5 The utility model provides a schematic top view of the overall equipment of a central air-conditioning training and assessment equipment.

[0027] In the figure: 1 cooling tower, 101 main frame, 102 ball valve, 103 water inlet, 2 chiller, 21 compressor, 22 expansion water tank, 23 heater assembly, 231 connecting water pipe, 24 water pump group, 25 condenser, 26 first evaporator, 3 wind cabinet, 31 electric wind brake, 32 humidifier, 33 fan, 34 second evaporator, 35 transparent cover, 4 simulation room, 41 transparent door, 5 control cabinet, 6 manual wind brake, 7 return water inlet-1, 8 water outlet-1, 9 external water supply pipe, 10 water outlet-2, 11 return water inlet-2, 12 water outlet-3, 13 return water inlet-3, 14 exhaust pipe, 15 movable casters. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Reference Figure 1-5 A central air-conditioning training and assessment equipment comprises a cooling tower 1, a chiller 2, a wind cabinet 3, a simulation room 4, and a control cabinet 5. One side of the cooling tower 1 is connected to the chiller 2 through a return water port 17, a water outlet 18, and an external water supply pipe 9, one side of the chiller 2 is connected to the wind cabinet 3, and one side of the wind cabinet 3 is connected to the simulation room 4 through an exhaust pipe 14. The cooling tower 1, the chiller 2, the wind cabinet 3, and the simulation room 4 are all connected to the control cabinet 5.

[0030] Furthermore, an external water supply pipe 9 is provided on the external side of the cooling tower 1 , the external water supply pipe 9 is connected to the chiller 2 , and a return water port 17 and a water outlet 18 are provided at the bottom of the cooling tower 1 .

[0031] Furthermore, the water return port-17 is connected to the condenser 25 in the chiller 2, and the water outlet-18 is connected to the water pump group 24 in the chiller 2.

[0032] Furthermore, the bottom of the cooling tower 1 is fixedly mounted on the main frame 101 , a ball valve 102 is provided on one side of the bottom of the main frame 101 , the ball valve 102 is connected to the water inlet 103 , and a plurality of movable casters 15 are installed at the bottom of the main frame 101 .

[0033] Furthermore, the chiller 2 includes a compressor 21, an expansion water tank 22, a heater assembly 23, a water pump group 24, a condenser 25, and a first evaporator 26, wherein the first evaporator 26 is connected to a second evaporator 34 arranged in a side wind cabinet 3 through a water outlet -210, one side of the second evaporator 34 is connected to a return water port -211 arranged in the water pump group 24, and the other side of the water pump group 24 is connected to the cooling tower 1 through a water outlet -18.

[0034] Furthermore, the bottom of the heater assembly 23 is connected to the water pump assembly 24 and the first evaporator 26 respectively through a connecting water pipe 231 , and movable casters 15 are provided at the bottom of the heater assembly 23 and the chiller 2 .

[0035] Furthermore, an electric damper 31 is provided on one side of the upper part of the wind cabinet 3, and an installation cabinet is provided in the middle part, and a humidifier 32, a fan 33, and a second evaporator 34 are respectively provided inside the cabinet, wherein the electric damper 31 is respectively connected to the humidifier 32, the fan 33, and the second evaporator 34, and a transparent cover plate 35 is rotatably installed on one side of the cabinet, and movable casters 15 are provided at the bottom of the cabinet.

[0036] Furthermore, a water outlet 312 and a water return port 313 are respectively provided on one side of the wind cabinet 3, wherein the water outlet 312 and the water return port 313 are respectively connected to the water outlet 212 and the water return port 211 provided in the chiller 2 through water pipes.

[0037] Furthermore, one side of the wind cabinet 3 is connected to an exhaust duct 14, the other side of the exhaust duct 14 is connected to the simulation room 4, and the wind cabinet 3 and the simulation room 4 are connected through a manual wind gate 6, wherein a transparent door 41 is rotatably provided on one side of the simulation room 4.

[0038] Furthermore, the control cabinet 5 is respectively connected to the cooling tower 1, the chiller 2, the wind cabinet 3, and the simulation room 4 through electrical signals.

[0039] In this embodiment, the cooling and heating functions of the equipment are controlled and adjusted through the cooling tower 1, the chiller 2, the wind cabinet 3, the simulation room 4, and the control cabinet 5. The control cabinet 5 can be automatically controlled to collect, analyze and process the on-site equipment information, as well as exchange and share the information.

[0040] In actual application, the compressor 21 in the chiller 2 compresses the refrigerant into a high-temperature and high-pressure gas, and then releases heat through the condenser 25, and condenses the refrigerant into a liquid through the cooling tower 1, and is sent to the first evaporator 26 to absorb heat. When refrigeration is needed, cold water enters the wind cabinet 3, and the cold air is transported to the simulation room 4 through the setting of the electric wind damper 31, the exhaust pipe 14, and the fan 33.

[0041] When hot water is needed, the cold water in the wind cabinet 3 flows back through the expansion water tank 22 in the chiller 2 and enters the heater assembly 23, and then flows into the wind cabinet 3 and transports the hot air to the simulation room through the second evaporator 34 and the fan 33. When in the simulation room 4, the temperature change can be intuitively felt inside, and the control cabinet 5 and the simulation room 4 are coordinated to automatically adjust the fan speed, the coil switch and whether heating or cooling is needed to ensure the comfort and energy saving of the indoor environment. The fan at the bottom can return the cold air to the wind cabinet and circulate the cold air to the simulation room again.

[0042] Among them, the wind cabinet 3 can circulate the indoor air through the operation of the fan 33 to make the cold air circulate. In a humid environment, the cold air sent out by the wind cabinet 3 can absorb moisture in the air and play a dehumidifying role; when the cold air sent out by the wind cabinet, the air can flow to promote indoor ventilation.

[0043] Among them, simulation room 4 allows teaching staff to personally experience the cooling and heating effects of the system, and have an obvious feeling of the changes in temperature regulation. At the same time, it can also avoid the energy waste caused by the lack of a closed environment for air conditioning, and can provide more accurate parameters and effects for teaching.

[0044] The control cabinet 5 includes a sensor, a controller and a touch screen display, and automatically controls the refrigeration cycle system, the air supply system and the air handling unit through the controller to achieve control and management.

[0045] Among them, movable casters 15 are arranged at the bottom of the cooling tower 1, the chiller 2, the wind cabinet 3, the simulation room 4 and the control cabinet 5 to facilitate movement and positioning; at the same time, the cabinet doors of the wind cabinet 3 and the simulation room 4 are made of transparent plate materials, which makes it easier for students to understand intuitively during teaching.

[0046] Among them, it is worth noting that the refrigeration system uses all-copper materials, which has good efficiency and long service life.

[0047] Among them, it is worth noting that the control cabinet 5 adopts a PLC programmable controller as the main control system.

[0048] In the utility model, the cooling and heating functions of the equipment are controlled and adjusted through the cooling tower 1, the chiller 2, the wind cabinet 3, the simulation room 4, and the control cabinet 5. At the same time, the control cabinet adopts a PLC programmable controller as the main control system, which is more reliable than the traditional one. It can be controlled in real time by combining with the industrial touch screen, which effectively increases the cooling and heating efficiency.

[0049] At the same time, by arranging movable casters 15 at the bottom of each equipment group, the equipment can be easily moved and the practicality is increased. The cooling tower 1, the chiller 2, the wind cabinet 3, the simulation room 4, and the control cabinet 5 are all open-type, which makes the teaching more intuitive, convenient for maintenance operation and demonstration, and can provide more precise results.

[0050] At the same time, the door panels of the wind cabinet 3 and the simulation room 4 are made of transparent materials, which are highly intuitive and have high teaching efficiency. Through the simulation room 4, one can intuitively feel the cooling and heating effects of the system, and can also clearly feel the changes in temperature regulation. At the same time, it can also avoid the energy waste caused by the lack of a closed environment for air conditioning, and can provide more accurate parameters and effects for teaching.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A central air conditioning training and assessment device, comprising a cooling tower (1), a chiller (2), a wind cabinet (3), a simulation room (4), and a control cabinet (5), characterized in that: One side of the cooling tower (1) is connected to the chiller (2) via a water return port-1 (7), a water outlet-1 (8), and an external water supply pipe (9); one side of the chiller (2) is connected to a wind cabinet (3); one side of the wind cabinet (3) is connected to a simulation room (4) via an exhaust pipe (14); wherein the cooling tower (1), the chiller (2), the wind cabinet (3), and the simulation room (4) are all connected to a control cabinet (5).

2. A central air conditioning training and assessment device according to claim 1, characterized in that: An external water supply pipe (9) is provided on one side of the exterior of the cooling tower (1), the external water supply pipe (9) is connected to the chiller (2), and a water return port-1 (7) and a water outlet-1 (8) are provided at the bottom of the cooling tower (1).

3. A central air conditioning training and assessment device according to claim 2, characterized in that: The water return port-1 (7) is connected to the condenser (25) in the water chiller (2), and the water outlet port-1 (8) is connected to the water pump group (24) in the water chiller (2).

4. The central air conditioning training and assessment equipment according to claim 2 is characterized in that: The bottom of the cooling tower (1) is fixedly mounted on a main frame (101); a ball valve (102) is provided on one side of the bottom of the main frame (101); the ball valve (102) is connected to a water inlet (103); and a plurality of movable casters (15) are installed at the bottom of the main frame (101).

5. The central air conditioning training and assessment equipment according to claim 1, characterized in that: The chiller (2) comprises a compressor (21), an expansion water tank (22), a heater assembly (23), a water pump assembly (24), a condenser (25), and a first evaporator (26), wherein the first evaporator (26) is connected to a second evaporator (34) arranged in a wind cabinet (3) on one side through a water outlet-2 (10), one side of the second evaporator (34) is connected to a water return port-2 (11) arranged in the water pump assembly (24), and the other side of the water pump assembly (24) is connected to a cooling tower (1) through a water outlet-1 (8).

6. The central air conditioning training and assessment equipment according to claim 5, characterized in that: The bottom of the heater assembly (23) is connected to the water pump assembly (24) and the first evaporator (26) respectively through a connecting water pipe (231), and movable casters (15) are provided at the bottom of the heater assembly (23) and the chiller (2).

7. The central air conditioning training and assessment equipment according to claim 5, characterized in that: An electric damper (31) is arranged on one side of the upper part of the wind cabinet (3), and an installation cabinet is arranged in the middle part. A humidifier (32), a fan (33), and a second evaporator (34) are arranged inside the cabinet, respectively. The electric damper (31) is connected to the humidifier (32), the fan (33), and the second evaporator (34), respectively. A transparent cover plate (35) is rotatably installed on one side of the cabinet, and movable casters (15) are arranged at the bottom of the cabinet.

8. The central air conditioning training and assessment equipment according to claim 7, characterized in that: A water outlet 3 (12) and a water return port 3 (13) are respectively arranged on one side of the wind cabinet (3), wherein the water outlet 3 (12) and the water return port 3 (13) are respectively connected to the water outlet 2 (12) and the water return port 2 (11) arranged in the chiller (2) through water pipes.

9. The central air conditioning training and assessment equipment according to claim 1, characterized in that: One side of the wind cabinet (3) is connected to an exhaust pipe (14), and the other side of the exhaust pipe (14) is connected to the simulation room (4). The wind cabinet (3) and the simulation room (4) are connected via a manual damper (6), wherein a transparent door (41) is rotatably provided on one side of the simulation room (4).

10. The central air conditioning training and assessment equipment according to claim 1, characterized in that: The control cabinet (5) is respectively connected to the cooling tower (1), the chiller (2), the wind cabinet (3), and the simulation room (4) through electrical signals.

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