TWM535792U - Equipment of air conditioning box - Google Patents

Description

Air conditioning box equipment

The present invention relates to an air conditioning box device, in particular to a method in which a low temperature condensed water recovery is mixed with an external air volume condition and then mixed with a return air flow condition, mainly by a heat exchange of an evaporator or an ice water device to reach a dew point. The condensed water generated by the temperature is stored in a volume space (drip tray), and the low-temperature condensed water is sprayed into the external air duct by a pressurized spray pump to be mixed with the air-cooling principle to achieve the purpose of cooling, and the temperature of the cooled air is passed through The evaporator or ice water heat exchanger is introduced into the room to provide air conditioning to improve indoor air quality and reduce carbon dioxide concentration.

Due to the complexity of the device control logic, the integration of each sensing and control component into a PID control computing module such as PLC, OPLC or DDC combined with human-machine graphics control enables intelligent management of the device body and the device control system. Independent individual control unit devices can also perform remote monitoring and data transmission through communication modules through RS-232, RS-485, MODbus, CSM/SMS and other communication protocols.

Generally, the air conditioning box equipment currently used uses the external air to improve the indoor air quality to reduce the carbon dioxide concentration. However, when the outside air temperature is too high, mixing with the indoor return air temperature will cause a large increase in the refrigeration load, resulting in a large energy consumption of the device. Secondly, the device control logic is simple. Therefore, the integration of each sensing and control component into the PID control computing module such as PLC, OPLC or DDC is combined with the human-machine graphics control to make the device body and the device control system intelligently manage. The air conditioner box body is externally controlled.

Please refer to FIG. 1-1, which is a schematic diagram of a conventional air conditioning box apparatus and system. The conventional air conditioning box apparatus includes an air conditioning box body 1, a filter net 2, a cooling coil 3, and an air conditioning box windmill set. (windmill unit) 4.

Assume that the total heat load (Qdh) of the cold room is 100RT (the number of indoor air-conditioning tons when the external air is not introduced), the air volume is 1010CMM, and the outdoor air temperature is higher in the summer (37°C db, 32°Cwb): It is introduced into the mixing tank 10 by the external air duct 9 and its air volume is 151.5CMM, which is calculated by 15% of the total air volume. The indoor return air volume is introduced into the return air duct 8 through the air returning indoor air return port 7 to the air return side of the air conditioner box. Mixing tank 10, indoor return air temperature condition (26 ° C db, 19.5 ° Cwb), air volume is 858.5 CMM, after the mixing tank 10 is mixed, the condition is (27.7 ° Cdb, 21.4 ° Cwb), the air volume is 1010 CMM, air conditioning Box windmill group (air blower group) 4 air supply is introduced into air conditioning air outlet 6 via air supply duct 5, its air temperature condition (14°Cdb, 13.5°Cwb), air volume is 1010CMM, and coil capacity demand is increased to 136.8RT (outside air) The air-conditioning volume of indoor demand at the time of introduction is 151.5CMM (the room is positive pressure), and the calculation formula and related parameters and values are shown in Table 1 below.

(136.8RT-100RT)/136.8RT=26.9%; 26.9% of air-conditioning tonnage due to external gas impact.

Because the device control logic is simple, the integration of each sensing and control component is not included in the combination of PLC, OPLC or DDC. The PID control computing module adopts external control air conditioning box equipment, so the complex control system considers the external control mode processing. .

Please refer to FIG. 1-2, which is a schematic diagram of the control of the conventional air conditioning box device; the conventional air conditioning box device control module 16 is an external type, and the numbers 1 to 14 are related sensing and control components, as shown in the figure. Shown in .

Therefore, the conventional air-conditioning box equipment must be connected to a control module such as a PLC, which is not only easy to cause disconnection during operation, but also complicated and inconvenient in operation and maintenance, and requires mutual correction when restarting, which is time consuming. .

In view of this, the creator has improved the shortcomings of the prior art, and after years of experience in this industry, he created the creation.

In view of the above problems, the creator has studied and developed with care, so this creation The main purpose is to provide an air-conditioning air supply device, which integrates the sensing and control components into a PID control computing module combined with PLC, OPLC or DDC and combines human-machine graphics control to make the device itself and the built-in control module. Intelligent management.

Furthermore, due to the operation of the compressor of the air-conditioning main unit, high and low pressures are established, so that the low-pressure end refrigerant passes through the heat exchanger to generate ice water or directly expands through the evaporator to generate cold air, and the ice water or cold air passes through the windmill heat exchange to take cold energy, and the heat is passed through The cooling water tower live expansion condenser removes thermal energy through the heat exchange of the windmill to achieve the purpose of the refrigeration cycle, wherein the low temperature condensed water is recovered and stored through heat exchange between the front end air and the heat exchanger of the low pressure end to reach the dew point temperature. The pressure spray system is introduced into the front air to mix and cool, and the principle of evaporative cooling is used to save energy. The air quality in the room can be maintained, including: any condensation water generated by the front air passing through the cooling device to reach the dew point and low temperature condensation. Recycling directly contacts the front air to achieve the effect of cooling. Because the equipment control logic is complex, the sensing and control components are integrated into the equipment body and the equipment control system to be intelligently managed to become an independent individual control unit. .

To achieve the above object, the present invention provides an air conditioning box apparatus comprising at least one air conditioning box body, a filter net, a cooling coil, an air conditioning box windmill set, a control module, and a mixing box (cooling coil) a drip tray, characterized in that: the air-conditioning box windmill set, the filter net, the cooling coil, and the mixing tank are disposed in the air-conditioning box body, and the filter net and the air-conditioner windmill set are spaced apart from each other, the mixing a tank and the cooling coil are located between the filter and the air conditioning unit, and the cooling coil is partially disposed in the mixing box; an air conditioning outer air duct is in communication with the air conditioning body; the mixing The tank is connected to a pressurized spray pump, and the pressurized spray pump is connected to one end of a three-way electric valve through a pressurized spray line, and the other ends of the three-way valve are respectively associated with a first plus The pressure spray joint is connected to a second pressurized spray joint, the first pressurized spray joint is disposed outside the air conditioner body, and the second pressurized spray joint is disposed inside the air conditioner body and located at the filter net away from One of the cooling coils The cooling coil is connected to an ice water electric valve through an ice water return water temperature sensor and an ice water outlet temperature sensor, and the ice water return water temperature sensor is used to sense the cooling coil The return water temperature and the ice water temperature water sensor sense the water outlet temperature of the cooling coil to control the ice water electric valve to regulate the water outlet temperature and the return water temperature of the cooling coil, the ice water electric The valve system provides ice water to the cooling coil; the mixing tank is provided with a liquid level switch to control the level of the condensed water in the mixing tank; and the control mode The air conditioner box body is built in, and the air conditioner box windmill group, the pressurized spray pump, the three-way electric valve, the first pressurized spray joint, the second pressurized spray joint, and the ice water return water temperature The sensor, the ice water outlet temperature sensor, the ice water electric valve, and the liquid level switch are electrically connected and receive signals for control through a built-in program.

In some embodiments, the air conditioning unit body has a return air damper on a side remote from the air conditioning unit windmill set.

In some embodiments, the return air damper is provided with at least one of a smoke detector, a carbon dioxide sensor, a return air temperature and humidity sensor, and a return air anemometer, the smoke detector, The carbon dioxide sensor, the return air temperature and humidity sensor, and the return air anemometer are electrically connected to the control module.

In some embodiments, the air-conditioning box body has one side of the air-conditioning box windmill group connected to an air-conditioned air supply duct, and the return air-powered air door is connected to an air-conditioning return air duct.

In some embodiments, the air conditioning outer air duct is provided with at least one of an outer temperature and humidity sensor and an external air anemometer, the outer temperature and humidity sensor, the external air anemometer and the control module Electrical connection.

In view of the above, the objects and advantages of the present invention are not difficult to understand from the detailed description of the selected embodiments and the accompanying drawings.

Of course, the present invention is allowed to differ in some of the parts, or the arrangement of the parts, but the selected embodiments are described in detail in the present specification, and the construction thereof is shown in the drawings.

1‧‧‧Air conditioning box body

2‧‧‧Filter

3‧‧‧Cooling coil

4‧‧‧Air Conditioner Windmill Set

5‧‧‧Pressure spray pump

6‧‧‧Pressure spray line

7‧‧‧First pressurized spray connector

8‧‧‧Drainage trough

61‧‧‧Detective smoke sensor

71‧‧‧Oxidized carbon sensor

81‧‧‧Returning temperature and humidity sensor

9‧‧‧Returning anemometer

10‧‧‧Mixed box

101‧‧‧External temperature and humidity sensor

11‧‧‧External gas anemometer

12‧‧‧Ice water electric valve

13‧‧‧Air conditioning outside air duct

131‧‧‧Ice water return water temperature sensor

14‧‧‧Ice water outlet temperature sensor

16‧‧‧Control Module

18‧‧‧Level switch

19‧‧‧Three-way electric valve

1A‧‧‧Return air damper

20‧‧‧Second pressurized spray connector

SA‧‧‧Air conditioning air duct

RA‧‧‧Air conditioning return air duct

Figure 1-1 shows a block diagram of a conventional air conditioning box apparatus.

Figures 1-2 show schematic diagrams of the control of conventional air conditioning box equipment.

Figure 2-1 shows a block diagram of the air conditioning box device of the present invention.

Figure 2-2 shows the control diagram of the air conditioning box device of the present invention.

The technical means by which this creation is used to achieve the above objectives are described in detail below with the following implementation diagrams, which are further understood and agreed upon.

Please also refer to Figure 2-1 and Figure 2-2. This creation is an air tone. The box device includes at least one air conditioner box body 1, a filter net 2, a cooling coil tube 3, an air conditioner box windmill group (windmill unit) 4, a control module 16, and a mixing box (cooling coil drip tray) ) 10.

The air conditioner box windmill group 4, the filter net 2, the cooling coil tube 3, and the mixing tank 10 are disposed in the air conditioner box body 1, and the filter net 2 and the air conditioner box windmill group 4 are spaced apart from each other, and the mixing box 10 and the cooling coil tube 3 are located at The filter 2 is interposed between the air conditioner stack 4 and the cooling coil 3 is partially disposed in the mixing tank 10.

An air conditioning outdoor air duct 13 is in communication with the air conditioning box body 1.

The mixing tank 10 is connected to a pressurized spray pump 5, and the pressurized spray pump 5 is connected to one end of a three-way electric valve 19 through a pressurized spray line 6, and the other ends of the three-way valve 19 are respectively Connected with a first pressurized spray joint 7 and a second pressurized spray joint 20, the first pressurized spray joint 5 is disposed outside the air-conditioning tank body 1, and the second pressurized spray joint 20 is disposed inside the air-conditioning tank body 1 and Positioned on the side of the filter 2 away from the cooling coil 3; in the case of introduction of external air, the first pressurized spray joint 7 is sprayed to lower the temperature of the air-conditioning box body 1 from the outside; and in the absence of external air introduction The second pressurized spray joint 20 is sprayed to lower the temperature of the air-conditioning box body 1 from the inside.

The cooling coil 3 is connected to an ice water electric valve 12 through an ice water return water temperature sensor 131 and an ice water outlet temperature sensor 14, and is sensed by the ice water return water temperature sensor 13 in the cooling tray. The return water temperature of the tube 3 and the ice water temperature outlet sensor 14 sense the water outlet temperature of the cooling coil 3 to control the ice water electric valve 12 to regulate the outlet water temperature and the return water temperature of the cooling coil 3, ice water The electric valve 12 provides ice water to the cooling coil 3.

The mixing tank 10 is provided with a level switch 18 for controlling the level of the condensed water in the mixing tank 10.

The control module 16 is built in the air-conditioning box body 1, and the air-conditioning box windmill group 4, the pressurized spray pump 5, the three-way electric valve 19, the first pressurized spray joint 7, the second pressurized spray joint 20, and the ice water back. The water temperature sensor 13, the ice water outlet temperature sensor 14, the ice water electric valve 12, and the liquid level switch 18 are electrically connected and receive signals for control through a built-in program.

The air conditioner box body 1 has a return air electric damper 1A on a side away from the air conditioner box windmill group 4; the return air damper 1A is provided with a smoke detecting sensor 61 and a carbon dioxide sensor 71. At least one of a return air temperature and humidity sensor 81 and a return air anemometer 9; a smoke detector 61, a carbon dioxide sensor 71, a return air temperature and humidity sensor 81, a return air anemometer 9 and a control The module 16 is electrically connected.

The air-conditioning box body 1 has an air-conditioning air supply duct SA connected to one side of the air-conditioning box windmill group 4, and an air-conditioning return air duct RA is connected to the return air-powered air damper 1A.

The air conditioning outdoor air duct 13 is provided with at least one of an outside air temperature and humidity sensor 101 and an external air anemometer 11; the external air temperature and humidity sensor 101 and the external air anemometer 11 are electrically connected to the control module 16.

Load analysis for external gas introduction: Assume that the total thermal load (Qdh) of the cold room is 100RT (the number of indoor air-conditioning tons when the external air is not introduced), the air volume is 1010CMM, and the high external air temperature in summer (37°Cdb) , 32 ° Cwb): introduced into the mixing tank 10 by the external air duct 13 whose air volume is 151.5 CMM, calculated as 15% of the total air volume, the electric three-way valve 19 is activated, and the pressurized spray pump 5 draws the low-temperature cooling water of the cooling coil 3 ( Condensate water spray is sent from the pressurized pipe 6 to the spray joint 7 spray (14 ° Cdb, 14 ° Cwb) and outside air temperature conditions (37 ° Cdb, 32 ° Cwb) outside the air conditioning duct 16 (25.6 ° C Db, 19.7 ° Cwb) first mixed and cooled, then introduced into the mixing tank 10 and the indoor return air volume is introduced into the return air duct 12 through the air conditioning indoor return air inlet 15 to the return air side of the air conditioner box, and the indoor return air temperature condition (26 ° C db, 19.5 ° Cwb), the air volume is 858.5 CMM, after mixing in the mixing tank 10, the condition is (25.6 ° Cdb, 19.8 ° Cwb), the air volume is 1010 CMM, and the air is blown through the air supply duct 11 through the air conditioning box windmill group (air blower group) Introduce the air conditioning air outlet 14, the air temperature condition (14 °Cdb, 13.5 °Cwb), the air volume is 1010 CMM, the coil capacity demand increases It is 105RT (the number of indoor air-conditioning tons when the outside air is introduced), and the condensed water that cannot be vaporized is introduced into the cooling coil 3 through the drain tank 8 and reused. The airflow of the door and window leakage wind direction is 151.5 CMM (because the room is positive pressure), the calculation formula And related parameters and values are shown in Table 2 below.

(105RT-100RT)/105RT=4.8%; 4.7% of the air-conditioning tonnage due to the influence of external air.

Load analysis for the introduction of no external air: Assume that the total thermal load (Qdh) of the cold room is 100RT (the number of indoor air-conditioning tons when the external air is not introduced), the air volume is 1010CMM, and the high external air temperature in summer (37°C) Db, 32 ° Cwb): is introduced into the mixing tank 10 by the external air duct 13, the air volume is 151.5 CMM, calculated by 15% of the total air volume, the electric three-way valve 19 is activated, and the pressurized spray pump 5 draws the low temperature of the cooling coil 3. Cooling water (condensed water), spray start, sprayed by the pressurized pipe 6 to the spray joint 19 spray (14 ° Cdb, 14 ° Cwb), and the indoor return air volume is introduced into the air return pipe 12 through the air conditioning indoor return air port 15 to the air conditioner box The wind side enters the mixing tank 10, the indoor return air temperature condition (26°Cdb, 19.5°Cwb), the air volume is 858.5CMM, and the condition is (24.9°Cdb, 19.0°Cwb) after the mixing tank 10 is mixed, and the air volume is 1010CMM. The air supply through the air-conditioning box windmill group (air blower unit) 4 is introduced into the air-conditioning air outlet 14 via the air supply duct 11, the air temperature condition (14°Cdb, 13.5°Cwb), the air volume is 1010CMM, and the coil capacity requirement is increased to 90.9RT. (There is no indoor air-conditioning tonnage when the outside air is introduced), the wind and air volume of the door and window leakage is 151.5CMM (due to the room) It is positive), and calculating equation parameters and values as shown in Table III.

It can also be recycled to 9.1RT when there is no external gas.

Because the device control logic is simple, the sensor and control components are not integrated into the integration; the PID control computing modules such as PLC, OPLC or DDC are all externally controlled by the air conditioner box; therefore, the complex control system is considered to be externally controlled. Mode processing.

Please refer to Figure 2-2, which is a schematic diagram of the air conditioning box control system; The created air conditioning box device includes a built-in control module body 16 and sensing and control elements 1-19.

The above description of the embodiments is used to illustrate the present invention and is not intended to limit the creation of the present invention. Therefore, only the numerical changes, the replacement of equivalent components, or the expansion of local components are caused by the application of the present invention. Additional functions, etc., should still be subject to the scope of this creation.

From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the aforementioned objectives, and has been in compliance with the provisions of the Patent Law, and has filed a patent application.

1‧‧‧Air conditioning box body

2‧‧‧Filter

3‧‧‧Cooling coil

4‧‧‧Air Conditioner Windmill Set

5‧‧‧Pressure spray pump

6‧‧‧Pressure spray line

7‧‧‧First pressurized spray connector

8‧‧‧Drainage trough

10‧‧‧Mixed box

13‧‧‧Air conditioning outside air duct

19‧‧‧Three-way electric valve

SA‧‧‧Air conditioning air duct

RA‧‧‧Air conditioning return air duct

Claims (6)

An air conditioning box device comprising at least one air conditioning box body, a filter network, a cooling coil, an air conditioning box windmill group, a control module, and a mixing box, wherein: the air conditioning box windmill group, the filtering a net, the cooling coil, and the mixing box are disposed in the air-conditioning box body, the filter net is spaced apart from the air-conditioning box windmill set, and the mixing box and the cooling coil are located in the filter net and the air-conditioning box windmill Between the groups, the cooling coil is disposed in the mixing tank; an air conditioning outer air duct is in communication with the air conditioning tank body; the mixing tank is connected to a pressurized spray pump, and the pressurized spray pump is passed through a plus The pressure spray line is connected to one end of the three-way electric valve, and the other ends of the three-way valve are respectively connected with a first pressurized spray joint and a second pressurized spray joint, the first pressurized spray a joint is disposed outside the air-conditioning box body, and the second pressurized spray joint is disposed inside the air-conditioning box body and located on a side of the filter net away from the cooling coil; the cooling coil passes through an ice water return water temperature Sensor and an ice water The temperature sensor is in communication with an ice water electric valve, and the ice water return water temperature sensor is used to sense the return water temperature of the cooling coil and the ice water temperature is detected by the water sensor at the cooling coil The outlet water temperature is controlled to control the water outlet temperature and the return water temperature of the cooling water coil valve, the ice water electric valve provides ice water to the cooling coil; the mixing tank is provided with a liquid level switch, The liquid level of the condensed water in the mixing tank is controlled; and the control module is built in the air-conditioning box body, the air-conditioning box windmill group, the pressurized spray pump, the three-way electric valve, the first plus a pressure spray joint, the second pressurized spray joint, the ice water return water temperature sensor, the ice water outlet temperature sensor, the ice water electric valve, and the liquid level switch are electrically connected and receive signals to pass through A built-in program controls it. The air conditioning box device of claim 1, wherein the air conditioning unit body has a return air damper on a side away from the air conditioning unit windmill set. The air conditioning box device of claim 2, wherein the return air damper is provided with a smoke detecting sensor, a carbon dioxide sensor, a return air temperature and humidity sensor, and a return air anemometer. The smoke detector, the carbon dioxide sensor, the return air temperature and humidity sensor, and the return air anemometer are electrically connected to the control module. The air conditioning box device according to claim 2, wherein the air conditioning box body has one side of the air conditioning box windmill group connected to an air conditioning air supply duct, and the return air power damper is connected to an air conditioning return air duct. The air conditioning box device of claim 1, wherein the air conditioning outer air duct is provided with at least one of an outer temperature and humidity sensor and an external air anemometer, the outer temperature and humidity sensor and the external air The anemometer is electrically connected to the control module. The air conditioning box device according to claim 1, wherein the condensed water formed by the first pressurized spray joint is diverted to the mixing tank through a drain tank disposed outside the air conditioner housing body for recycling.