CN114802689A - Special cabin environmental control system - Google Patents

Abstract

The invention discloses a special cabin environment control system, comprising a circulating air system, a fresh air ventilation system, a cooling system, a refrigeration system, a steam heating system, a steam humidifying system and a control system, wherein the circulating air system consists of a blower, a static pressure box , Air outlet and return air outlet, fresh air ventilation system consists of exhaust fan, fresh air valve and exhaust valve, cooling system consists of air cooler, refrigerant water control valve and pipeline, refrigeration system consists of compressor, condenser, section The steam heating system is composed of a steam heater and a steam regulating valve; the steam humidification system is composed of a steam humidifier and a steam regulating valve; the control system mainly controls the compressor and fan through the temperature and humidity sensor in the cabin. Start and stop, the opening and closing of the tuyere electric air valve, and the control of each regulating valve and solenoid valve. The invention can realize the functions of refrigeration, heating, dehumidification, humidification, ventilation and filtering, and the circulating air and ventilation can be switched at will.

Description

A special cabin environment control system

technical field

The invention relates to the technical field of environmental temperature and humidity control, in particular to a special cabin environment control system, which has the functions of refrigeration, heating, dehumidification, humidification, ventilation and filtering.

Background technique

For the control of the cabin environment, the air conditioning system is generally used to cool, dehumidify and heat the cabin, a humidification device is used to humidify the cabin, and an additional ventilation device is used to exchange the air in the cabin. Control the indoor environment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a special cabin environment control system in order to make up for the defects of the prior art.

The present invention is achieved through the following technical solutions:

A special cabin environment control system, including a circulating air system, a fresh air ventilation system, a cooling system, a compression refrigeration system, a steam heating system, a steam humidification system, a control system and a special cabin, and the circulating air system includes a circulating air supply fan , air filter, static pressure box, air outlet, return air outlet and mixed air outlet; the fresh air ventilation system includes an exhaust fan, a fresh air valve and an exhaust valve; the cooling system includes an air cooler and refrigerant water regulating valve; the compression refrigeration system includes a compressor, a condenser, a throttle valve and an evaporator; the steam heating system includes a steam heater and a steam regulating valve; the steam humidification system includes There are steam humidifiers and steam solenoid valves; the circulating supply fans, air filters, steam heaters, air coolers, evaporators, condensers, steam humidifiers, static plenums, air outlets, and special cabins are connected in sequence through pipes , the outlet of the special cabin is respectively connected to the return air outlet and the mixed air outlet, the return air outlet is connected to the circulating blower, and a fresh air valve is also connected to the circulating blower, and the mixed air outlet is connected to the exhaust fan. It is connected with the exhaust valve, and the cabin temperature and humidity sensor is installed in the special cabin; the steam regulating valve, the steam solenoid valve and the refrigerant water regulating valve are respectively connected with the steam heater, the steam humidifier and the air cooler. , the compressor, condenser, throttle valve and evaporator are connected in sequence, the temperature and humidity sensor in the cabin, the steam regulating valve, the steam solenoid valve, the refrigerant water regulating valve, the compressor, the circulating fan, the fresh air valve , exhaust valve and exhaust fan are connected with the control system. The control system mainly controls the start and stop of the fan, the opening and closing of the electric air valve of the tuyere, and the control of each regulating valve and solenoid valve through the temperature and humidity sensor in the cabin.

The fresh air enters the special cabin through the air outlet through the air filter, the heater, the air cooler, the evaporator, the condenser, the steam humidifier, the static pressure box, and the air outlet static pressure box in turn under the action of the circulating blower.

The air outlet, return air outlet and mixed air outlet are all electrically controlled to open and close, and are all connected to the control system.

The control system is also connected with sound and light alarms.

The advantages of the present invention are: the present invention can realize temperature and humidity control in the cabin and reduce the concentration of dangerous gases in the cabin through one device; it is mainly used on ships, through air heaters, air coolers, compressor refrigeration systems, humidifiers, etc. Temperature and humidity treatment is performed on the air in the cabin, and interval ventilation is carried out to control the temperature and humidity in the cabin, reduce the concentration of dangerous gases in the cabin, and improve the storage conditions of special cabins; Refrigerant water) to achieve refrigeration and dehumidification; in winter, steam heaters and humidifiers are used to achieve heating and humidification; in the transition season, when there is no refrigerant water and steam outside, the compressor refrigeration system evaporator is used for dehumidification, and the condenser is reheated for temperature adjustment. All systems are integrated on one device, with reasonable layout and convenient operation, and have been successfully applied.

The invention can realize the functions of refrigeration, heating, dehumidification, humidification, ventilation and filtering, and the circulating air and ventilation can be switched at will.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed ways

As shown in Figure 1, an environmental control system for a special cabin includes a circulating air system, a fresh air ventilation system, a cooling system, a compression refrigeration system, a steam heating system, a steam humidification system, a control system 14 and a special cabin 16. The said The circulating air system includes a circulating air supply fan 17, an air filter 15, a static pressure box 1, an air outlet 2, a return air outlet 18 and a mixed air outlet 19; the fresh air ventilation system includes an exhaust fan 21, a fresh air valve 20 and exhaust valve 22; the cooling system includes an air cooler 10 and a refrigerant water regulating valve 9; the compression refrigeration system includes a compressor 5, a condenser 6, a throttle valve 7 and an evaporator 8; The steam heating system includes a steam heater 13 and a steam regulating valve 12; the steam humidification system includes a steam humidifier 4 and a steam solenoid valve 3; the circulating blower 17, the air filter 15, the steam heating The air cooler 13, the air cooler 10, the evaporator 8, the condenser 6, the steam humidifier 4, the static pressure box 1, the air outlet 2, and the special cabin 16 are connected in sequence through pipes, and the outlet of the special cabin 16 is respectively connected to the return air outlet 18 and the mixed air. The exhaust port 19, the air return port 18 is connected with the circulating blower 17, and the circulating blower 17 is also connected with a fresh air valve 20, the mixed air exhaust port 19 is connected with the exhaust fan 21, and the exhaust fan 21 is connected with the exhaust air The valve 22 is connected, and the cabin temperature and humidity sensor 11 is installed in the special cabin 16; the steam regulating valve 12, the steam solenoid valve 3 and the refrigerant water regulating valve 9 are respectively connected with the steam heater 13 and the steam humidifier 4. Connected with the air cooler 10, the compressor 5, the condenser 6, the throttle valve 7 and the evaporator 8 are connected in turn in a cycle, the cabin temperature and humidity sensor 11, the steam regulating valve 12, the steam solenoid valve 3, The refrigerant water regulating valve 9 , the compressor 5 , the circulating fan 17 , the fresh air valve 20 , the exhaust valve 22 and the exhaust fan 21 are all connected to the control system 14 .

The fresh air enters the special cabin 16 through the air filter 15, the steam heater 13, the air cooler 10, the evaporator 8, the condenser 6, the steam humidifier 4, the static pressure box 1, and the air outlet 2 in sequence under the action of the circulating blower 17. .

The air outlet 2 , the return air outlet 18 , and the mixed air outlet 19 are all electrically controlled to open and close, and are all connected to the control system 14 .

The control system 14 is also connected with sound and light alarms.

The cabin temperature and humidity sensor 11 can also be placed on the return air outlet or the return air pipeline.

Refrigeration working condition: The refrigerant water regulating valve 9 is controlled by the temperature in the cabin, so as to automatically control the cooling capacity of the loop control system. When the cabin temperature is lower than the set temperature lower limit, the refrigerant water control valve 9 is closed, and when the return air temperature is higher than the set temperature upper limit, the refrigerant water control valve 9 is opened to the maximum (the set value can be adjusted).

Heating condition: control the steam regulating valve 12 by the return air temperature, so as to achieve the heating capacity of the automatic control loop control system; when the temperature in the cabin is higher than the set temperature upper limit, the steam regulating valve 12 is closed, and when the return air temperature is lower than the set temperature When the temperature is at the lower limit, the steam regulating valve 12 is opened to the maximum (the setting value can be adjusted);

Humidification condition; when the relative humidity in the cabin is lower than the lower limit of the set value, open the steam solenoid valve 3 for humidification; when the relative humidity of the return air is higher than the upper limit of the set value, close the steam solenoid valve 3 (the set value can be adjusted) .

Transition season: in the absence of refrigerant water and steam, the compressor 5 runs, the refrigerant enters the condenser 6, passes through the throttle valve 7, then enters the evaporator 8, and then returns to the compressor 5. Under the action of the circulating fan 17, the air first passes through the evaporator 8 for dehumidification, and then passes through the condenser 6 for reheating and temperature adjustment, so as to achieve the effect of dehumidification and temperature adjustment.

The air conditioner can realize closed circulation and ventilation work under any of the above-mentioned working conditions; a circulating blower 17 is used under closed cooling conditions, and a circulating blower and another exhaust fan 21 are used at the same time under ventilation conditions. When the fan is working, the fan is interlocked with the corresponding inlet and outlet dampers, that is, the fan starts the damper to open, and the fan stops the damper to close.

The above-mentioned solution is only to describe the preferred mode of this patent, but not to limit the scope of this patent. On the premise of not departing from the design spirit of this patent, various deformations and changes made by those of ordinary skill in the art to the technical solution of this patent and Improvements should all fall within the protection scope determined by the claims of the present invention.

Claims (3)

1. a special cabin environment control system is characterized in that: comprise a circulating air system, a fresh air ventilation system, a cooling system, a compression refrigeration system, a steam heating system, a steam humidification system, a control system and a special cabin, the described circulation The air system includes a circulating blower, an air filter, a static pressure box, an air outlet, a return air outlet and a mixed air outlet; the fresh air ventilation system includes an exhaust fan, a fresh air valve and an air exhaust valve; the cooling The system includes an air cooler and a refrigerant water regulating valve; the compression refrigeration system includes a compressor, a condenser, a throttle valve and an evaporator; the steam heating system includes a steam heater and a steam regulating valve; The steam humidification system includes a steam humidifier and a steam solenoid valve; the circulating blower, air filter, steam heater, air cooler, evaporator, condenser, steam humidifier, static pressure box, air outlet, The special cabins are connected in sequence through pipes, and the outlet of the special cabin is respectively connected to the return air outlet and the mixed air exhaust outlet. The exhaust fan is connected, the exhaust fan is connected with the exhaust valve, and the cabin temperature and humidity sensor is installed in the special cabin; the steam regulating valve, the steam solenoid valve and the refrigerant water regulating valve are respectively connected with the steam heater and steam humidification. The air cooler is connected to the air cooler, the compressor, condenser, throttle valve and evaporator are connected in sequence in a cycle, the cabin temperature and humidity sensor, steam regulating valve, steam solenoid valve, refrigerant water regulating valve, compressor , circulating blower, fresh air valve, exhaust valve and exhaust fan are all connected with the control system. 2 . A special cabin environment control system according to claim 1 , wherein the air outlet, return air outlet, and mixed air exhaust outlet are all electrically controlled opening and closing, and are all connected to the control system. 3 . 3. A special cabin environment control system according to claim 1, characterized in that: the control system is also connected with an acousto-optic alarm.

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