CN115200109B - An air conditioning system for quickly maintaining clean room temperature and constant humidity - Google Patents

Abstract

The invention discloses an air-conditioning system for rapidly maintaining a constant clean room temperature and humidity, comprising an air-conditioning circulation unit, a clean room fresh air duct, and a clean room exhaust duct. The first heat exchanger of the air-conditioning circulation unit is connected to a temperature-humidity regulating circulating water unit, the second heat exchanger of the air-conditioning circulation unit is connected to a heat-exchanging circulating water unit, a temperature-humidity regulating chamber is arranged on the fresh air pipe of the clean room, a filter device is provided at the air inlet end and an air supply end of the temperature-humidity regulating chamber, and a spray assembly is arranged between the filter devices at the air intake end and the air supply end. The water and the spray water in the temperature and humidity adjustment chamber are circulated through the temperature and humidity adjustment circulating water unit, and the air conditioning circulation unit and the temperature and humidity adjustment circulating water unit are all connected with the control unit. The invention can make full use of the natural cooling source through the phase change energy storage device, the cooling tower, the return air of the clean room, and the invalid heat or cold generated by the air conditioning circulation unit, thereby saving energy consumption and realizing the stable constant temperature and humidity of the clean room.

Description

An air conditioning system for quickly maintaining clean room temperature and constant humidity

technical field

The invention relates to the technical field of clean room air conditioning equipment, in particular to an air conditioning system for quickly maintaining a constant humidity in a clean room temperature.

Background technique

The clean room needs to be in a constant temperature and humidity working environment all year round. Compared with other departments, the clean room has higher requirements for indoor microbial content, indoor temperature and humidity maintenance, and indoor cooling effect. Due to the strong airtightness of the clean room, poor air flow, small air volume, and insufficient sunlight, microorganisms are easy to breed. In order to prevent the infection of patients caused by bacterial growth, the clean room needs to use special equipment to inhibit bacterial reproduction.

The clean room generally inhibits bacterial reproduction in two ways. One is to maintain the clean room to work in a low-temperature environment; the other is to sterilize and purify the air sent into the clean room to reduce the total amount of microbial particles and particles in the ambient air of the clean room to an allowable level.

The clean room not only needs cooling to maintain constant temperature and humidity in summer, but also needs cooling to adjust temperature and humidity in winter. Although the outdoor temperature is very low in winter, when the indoor temperature is higher than the required temperature of the clean room, it still needs to operate in the cooling mode, and the temperature change will inevitably lead to the change of the humidity. It is difficult to maintain a stable and constant humidity state in the clean room, and the same problem exists in the heating mode. Especially with the operation of medical equipment in the clean room, the activities of medical staff, and the work of auxiliary tools such as lighting, the heat generated will change the temperature and humidity of the clean room, making it difficult to maintain the set temperature and humidity working environment.

Contents of the invention

In view of the deficiencies in the above-mentioned background technology, the present invention proposes an air-conditioning system for quickly maintaining a constant temperature and humidity in a clean room temperature, which solves the technical problem that it is difficult for the existing air-conditioning preparations to quickly achieve constant temperature and humidity in a clean room.

The technical scheme of this application is:

An air-conditioning system for quickly maintaining a constant clean room temperature and humidity, comprising an air-conditioning circulation unit, a fresh air duct for a clean room, and an exhaust duct for a clean room. The first heat exchanger of the air-conditioning circulation unit is connected to a temperature-humidity regulating circulating water unit, the second heat exchanger of the air-conditioning circulation unit is connected to a heat-exchanging circulating water unit, the fresh air duct of the clean room is provided with a temperature-humidity regulating chamber, the air inlet end and the air supply end of the temperature and humidity adjustment chamber are both provided with filter devices, and a spray assembly is arranged between the filter devices at the air intake end and the air supply end. The shower water and the spray water in the temperature and humidity adjustment chamber are circulated through the temperature and humidity adjustment circulating water unit, and the air conditioning circulation unit and the temperature and humidity adjustment circulating water unit are all connected to the control unit.

Further, the heat exchange circulating water unit includes a cooling water pump, a cooling tower or/and a phase change energy storage device, and the heat exchange circulating water unit exchanges heat with a natural cold and heat source through a cooling tower or/and a phase change energy storage device.

Further, an air duct heat exchanger is arranged between the air inlet of the clean room fresh air duct and the air exhaust duct of the clean room exhaust duct, and two heat exchange return water pipes protruding from the second heat exchanger of the heat exchange circulating water unit are arranged side by side. One heat exchange return water pipe directly leads to the cooling tower or/and the phase change energy storage device, and the other heat exchange return water pipe passes through the air pipe heat exchanger and then leads to the cooling tower or/and the phase change energy storage device. The heat exchange return water pipe connected to the air duct heat exchanger is provided with a control Throttle valve connected to the unit. The air pipe heat exchanger can be a total heat exchanger or a sensible heat exchanger.

Further, an ultraviolet sterilizing device and a high-efficiency filter are arranged in the fresh air duct between the temperature-humidity adjustment chamber and the clean room, and the high-efficiency filter is arranged in the fresh air duct between the ultraviolet sterilizing device and the clean room.

Further, the filter device at the air inlet end of the temperature and humidity adjustment chamber includes a low filter, a middle filter, and a front water baffle arranged at intervals, the middle filter is arranged between the low filter and the front water baffle, and the front water baffle is located on a side close to the spray assembly.

Further, the filter device at the air supply end of the temperature and humidity adjustment chamber includes a rear water baffle, a high-level filter, and a heater arranged at intervals, the high-level filter is arranged between the rear water baffle and the heater, and the rear water baffle is located on a side close to the spray assembly.

Further, the spray assembly includes several pipes arranged along the flow section of the temperature-humidity adjustment chamber, and several atomizing nozzles are arranged along the length direction of the pipes. The pipes are connected to the temperature-humidity adjustment water supply pipe of the temperature-humidity adjustment circulating water unit, and the temperature-humidity adjustment return pipe of the temperature-humidity adjustment circulation water unit is connected to the bottom of the temperature-humidity adjustment chamber.

Further, the circulation of the temperature-humidity regulating circulating water unit includes a temperature-humidity regulating circulating pump connected to the first heat exchanger. The temperature-humidity regulating circulating pump is connected to a solenoid valve for reversing through the temperature-humidity regulating water supply pipe. One inlet of the solenoid valve reversing is connected to the temperature-humidity regulating water-supply pipe, the other inlet is connected to the second return pipe, and the outlet is connected to the second circulation pump. Therefore, a structural form of a large regulation cycle and a small regulation cycle can be formed, which can not only quickly adjust the temperature and humidity through the large regulation cycle formed by the temperature and humidity regulation circulation pump, solenoid valve reversing, the second circulation pump, exhaust pipe, temperature and humidity regulation chamber, and temperature and humidity regulation return pipe; but also can fine-tune the temperature and humidity to achieve a constant effect through the small regulation cycle formed by the second circulation pump, row pipe, temperature and humidity regulation chamber, and second return water pipe; it can also make the large regulation cycle and a small regulation cycle operate at the same time, so that the water in the large regulation cycle and the water in the small regulation cycle can be adjusted. Mix at the reversing position of the solenoid valve, and then pump the mixed water into the exhaust pipe again through the second circulation pump, so as to adapt to the temperature and humidity adjustment under different needs.

Further, the control unit includes a control module, an information collection module and an execution module. The information collection module includes an indoor temperature and humidity sensor arranged in the clean room, an intermediate temperature and humidity sensor arranged in the temperature and humidity adjustment chamber, and an external temperature and humidity sensor arranged at the air duct heat exchanger. Control Execution Module.

Further, the air conditioning cycle unit includes a compressor, the compressor is respectively connected to the first heat exchanger and the second heat exchanger through a four-way electromagnetic reversing valve, and the first heat exchanger is connected to the second heat exchanger through an expansion valve.

When the indoor temperature and humidity sensor detects that the indoor temperature and humidity are much higher or lower than the target temperature and humidity, the control module controls the compressor to run at high power to increase the cooling or heating capacity; at the same time, according to the temperature value detected by the external temperature and humidity sensor compared with the set value, the adaptability of the opening of the throttle valve is reduced, so as to avoid the energy transmitted to the air duct heat exchanger from being unable to prevent condensation, and to prevent condensation from being too high in temperature difference with the fresh air at the air duct heat exchanger; The exhaust fan operates at low power, and at the same time, the solenoid valve is controlled to reversing to only conduct the temperature and humidity adjustment circulation pump and the second circulation pump.

When the indoor temperature and humidity sensor detects that the indoor temperature and humidity are close to the target temperature and humidity, the control module controls the compressor to run at low power; at the same time, according to the temperature value detected by the external temperature and humidity sensor compared with the set value, the control throttle valve opening adaptability increases, avoiding the energy transmitted to the air duct heat exchanger can not play the role of avoiding condensation, and can avoid condensation caused by excessive temperature difference with the fresh air at the air duct heat exchanger; at the same time, control the temperature and humidity adjustment circulation pump, the second circulation pump, and the air supply fan to operate at low power. The valve reversing leads to the temperature and humidity regulating circulation pump, the second return water pipe and the second circulation pump.

When the indoor temperature and humidity sensor detects that the indoor temperature and humidity reaches the target temperature and humidity, the control module controls the compressor to turn off; at the same time, according to the temperature value detected by the external temperature and humidity sensor compared with the set value, the control throttle valve opening is adaptively increased to avoid the energy transmitted to the air duct heat exchanger from being unable to avoid condensation, and to avoid condensation caused by excessive temperature difference with the fresh air at the air duct heat exchanger; at the same time, it controls the intermittent low power operation of the temperature and humidity regulating circulation pump; Humidity regulating circulation pump runs at low power; when the control solenoid valve reverses and only connects the second return pipe and the second circulating pump, the temperature and humidity regulating circulating pump is controlled to turn off, and the second circulating pump is controlled to run at high power.

Compared with the prior art, the beneficial effects of the present invention include:

1. The present invention can make full use of the natural cold source through the phase change energy storage device, the cooling tower, the return air of the clean room, and the invalid heat or cold generated by the air conditioning circulation unit, so as to save energy consumption;

2. In the present invention, the temperature and humidity adjustment chamber is connected with the temperature and humidity adjustment circulating water unit, which increases the air supply volume in the clean room, realizes the rapid cooling of the clean room, reduces the influence of the operation of medical equipment, doctor activities, and the use of lighting tools on the indoor temperature and humidity, and effectively maintains the set temperature and humidity requirements of the clean room;

3. The temperature and humidity regulating circulating water unit in the present invention adopts the structural form of a large regulating cycle and a small regulating cycle, which can not only quickly regulate the temperature and humidity through the large regulating cycle formed by the temperature and humidity regulating circulating pump, electromagnetic valve reversing, the second circulating pump, exhaust pipe, temperature and humidity regulating chamber, and temperature and humidity regulating return pipe, but also can fine-tune the temperature and humidity through the small regulating cycle formed by the second circulating pump, exhaust pipe, temperature and humidity regulating chamber, and the second return water pipe to achieve a constant effect. The water mixed with the water in the small regulation cycle is mixed at the reversing position of the solenoid valve, and then the mixed water is pumped into the discharge pipe again through the second circulation pump;

4. The present invention can detect the temperature and humidity everywhere through the indoor temperature and humidity sensor, the intermediate temperature and humidity sensor installed in the temperature and humidity adjustment chamber, and the external temperature and humidity sensor installed at the air duct heat exchanger, and then according to the constant temperature and humidity requirements of the clean room, the air conditioning circulation unit, the temperature and humidity adjustment circulation pump, the solenoid valve reversing, the second circulation pump, the cooling water pump, the heater, the fan in the fresh air duct of the clean room, and the fan in the exhaust duct of the clean room are adjusted through the control module. Energy saving effect of thermal process.

5. The present invention installs an ultraviolet sterilizing device and a high-efficiency filter device at the indoor air supply duct to effectively ensure that the indoor microbial particles and the total amount of particles are within the allowable range;

6. The present invention installs a low-level filter and a middle-level filter at the front end of the temperature-humidity adjustment chamber to filter the fresh air sent through the heat exchanger twice, and installs a high-level filter and a heater at the end of the temperature-humidity adjustment chamber to effectively control the cleanliness, temperature and humidity of the air sent into the clean room.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention, the following will briefly introduce the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings without creative work.

Fig. 1 is a schematic diagram of the principle of the present invention;

Labels in the figure:

1. Front fender; 2. Spray assembly; 3. Rear fender; 4. Temperature and humidity adjustment cavity; 6. Water filter; 7. Second return pipe; 8. Solenoid valve reversing; 9. Second circulation pump; 11. Temperature and humidity adjustment return pipe; 12. First heat exchanger; 13. Circulation pump; 14. Expansion valve; 20. High-efficiency filter; 21. High filter; 22. Filter; 23. Clean room exhaust pipe; 24. Heat exchanger; 25. Temperature and humidity adjustment water supply pipe; 26. Refrigerant pipeline; 27. Heater;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An air-conditioning system for rapidly maintaining a constant clean room temperature and humidity, as shown in Figure 1, includes an air-conditioning circulation unit, a clean room fresh air duct 28, and a clean room exhaust duct 23; the air-conditioning circulation unit is a prior art, and is used for refrigeration or heating; under the action of an air supply fan, the clean room fresh air duct 28 can send outdoor fresh air into the clean room, and similarly, under the action of an exhaust fan, the clean room exhaust duct 23 can discharge the air in the clean room to the outside.

The air-conditioning cycle unit includes a compressor 15 , the compressor 15 is respectively connected to the first heat exchanger 12 and the second heat exchanger 16 through a four-way electromagnetic reversing valve 18 , and the first heat exchanger 12 is connected to the second heat exchanger 16 through an expansion valve 14 . The above content is part of the technical solution, and since it does not involve the core content of the invention, it will not be described in detail.

The core content of this technical solution is that: the first heat exchanger 12 of the air conditioning circulation unit is connected with a temperature and humidity regulating circulating water unit, and the temperature and humidity regulating circulating water unit can obtain heat or cooling capacity from the first heat exchanger 12; the second heat exchanger 16 of the air conditioning circulation unit is connected with a heat exchange circulating water unit, and the heat exchange circulating water unit can absorb useless heat or cold produced by the air conditioning circulation unit. The first heat exchanger 12 and the second heat exchanger 16 are preferably shell-and-tube heat exchangers to facilitate the efficient transfer of energy to the water medium of the temperature and humidity adjustment circulating water unit and the heat exchange circulating water unit.

The clean room fresh air duct 28 is provided with a temperature and humidity adjustment chamber 4, and the air inlet end and the air supply end of the temperature and humidity adjustment chamber 4 are provided with filter devices, and the filter devices are used to filter fresh air; a spray assembly 2 is arranged between the filter devices at the air intake end and the air supply end, and the spray assembly 2 is used to adjust the temperature and humidity of the fresh air; the spray water in the spray assembly 2 and the spray water in the temperature and humidity adjustment chamber 4 are circulated through the temperature and humidity adjustment circulating water unit, and the air conditioning circulation unit and the temperature and humidity adjustment circulation water unit are connected to the control unit . Through the regulation of the control unit, the temperature and humidity of the fresh air can be efficiently and reliably adjusted through the spray assembly in the temperature and humidity adjustment chamber 4, thereby ensuring constant temperature and humidity of the clean room.

In this embodiment, the temperature and humidity adjustment chamber is connected to the temperature and humidity adjustment circulating water unit, which increases the air supply volume in the clean room, realizes the rapid cooling of the clean room, reduces the impact on the indoor temperature and humidity caused by the operation of medical equipment, doctor activities, and the use of lighting tools, and effectively maintains the set temperature and humidity requirements of the clean room

On the basis of the above embodiments, as a preferred embodiment, the heat exchange circulating water unit includes a cooling water pump 17, a cooling tower 33 or/and a phase change energy storage device 32, and the heat exchange circulating water unit performs heat exchange with a natural cold and heat source through the cooling tower 33 or/and the phase change energy storage device 32. That is, the useless heat or cold generated by the air-conditioning circulation unit can not only be discharged through the second heat exchanger 16, but also can be exchanged with natural cooling or heat sources to release the energy in the circulating water of the heat-exchanging circulating water unit to the external environment. In addition, if the phase change energy storage device 32 is installed in the cooling tower 33, it can store natural cold or heat sources, effectively saving energy.

On the basis of the above-mentioned embodiments, as a preferred embodiment, an air pipe heat exchanger 24 is arranged between the air inlet of the clean room fresh air duct 28 and the air exhaust port of the clean room exhaust duct 23. The air duct heat exchanger 24 can use the energy discharged from the clean room to be exchanged into the fresh air of the clean room fresh air duct 28 to improve energy utilization, which can not only preheat or precool the fresh air, but also save energy and protect the environment.

Further, a filter 22 is arranged in the clean room exhaust duct 23 .

Further, two heat exchange return pipes protruding from the second heat exchanger 16 of the heat exchange circulating water unit are arranged side by side. One heat exchange return pipe directly leads to the cooling tower 33 or/and the phase change energy storage device 32, and the other heat exchange return pipe passes through the air pipe heat exchanger 24 and then leads to the cooling tower 33 or/and the phase change energy storage device 32. The heat exchange return pipe can further improve the utilization rate of energy through the air pipe heat exchanger 24, so that the useless energy generated by the air-conditioning circulation unit can be fully utilized instead of being diffused into the external environment through the heat exchange circulation water unit. The heat exchange return pipe connected to the air pipe heat exchanger 24 is provided with a throttle valve connected to the control unit, and the temperature at the air pipe heat exchanger 24 can be adjusted by controlling the opening of the throttle valve.

Specifically, during the heating process of the air-conditioning circulation unit, under the action of the four-way electromagnetic reversing valve 18, the high-temperature and high-pressure refrigerant produced by the compressor 15 is sent to the first heat exchanger 12, and the first heat exchanger 12 exchanges the heat of the high-temperature and high-pressure refrigerant to the temperature-humidity adjustment circulating water unit for spraying in the temperature-humidity adjustment chamber 4; after the refrigerant in the first heat exchanger 12 is discharged, it is converted into a low-temperature and low-pressure refrigerant through the expansion valve 14. The low-temperature and low-pressure refrigerant enters the second heat exchanger 16, and the second heat exchanger 16 can Part of the cooling capacity is exchanged to the air duct heat exchanger 24, thereby reducing the temperature of the gas discharged from the clean room, avoiding condensation at the air duct heat exchanger 24 due to the large temperature difference between the fresh air and the exhaust, and keeping the air duct heat exchanger 24 in a dry state, that is, preventing the air duct heat exchanger 24 from breeding germs.

Similarly, in the cooling process of the air-conditioning cycle unit, under the action of the four-way electromagnetic reversing valve 18, the high-temperature and high-pressure refrigerant produced by the compressor 15 is sent to the second heat exchanger 16, and the second heat exchanger 16 exchanges part of the heat of the high-temperature and high-pressure refrigerant to the heat exchange circulating water unit and the other part to the air pipe heat exchanger 24, thereby increasing the temperature of the gas discharged from the clean room, avoiding condensation at the air pipe heat exchanger 24 due to the large temperature difference between the fresh air and the exhaust, and keeping the air pipe heat exchanger 24 always dry. state, that is, avoiding the breeding of germs at the air tube heat exchanger 24. After the refrigerant in the second heat exchanger 16 is discharged, it is transformed into a low-temperature and low-pressure refrigerant through the expansion valve 14. The low-temperature and low-pressure refrigerant enters the first heat exchanger 12, and the first heat exchanger 12 exchanges the heat of the high-temperature and high-pressure refrigerant to the temperature-humidity regulating circulating water unit for spraying in the temperature-humidity regulating chamber 4.

On the basis of the foregoing embodiments, as a preferred embodiment, an ultraviolet sterilizer 19 and a high-efficiency filter 20 are arranged in the fresh air duct between the temperature-humidity adjustment chamber 4 and the clean room, and the high-efficiency filter 20 is arranged in the fresh air duct between the ultraviolet sterilizer 19 and the clean room. The ultraviolet sterilizing device 19 and the high-efficiency filter 20 perform high-intensity sterilization and filtration of the air sent into the clean room, effectively controlling the microbial particles and the total amount of particles in the ambient air of the clean room.

On the basis of the above embodiment, as a preferred embodiment, the filter device at the air inlet end of the temperature and humidity adjustment chamber 4 includes a low filter 29, a middle filter 30, and a front water baffle 1 arranged at intervals. The filter device at the air supply end of the temperature-humidity adjustment chamber 4 includes a rear fender 3, a high-position filter 21, and a heater 27 arranged at intervals. The fresh air sent through the air duct heat exchanger is filtered twice through the low filter 29 and the middle filter 30, and a high filter 21 and a heater 27 are installed at the end of the temperature and humidity adjustment chamber 4 to effectively control the cleanliness, temperature and humidity of the air sent into the clean room.

The temperature-humidity regulating circulating water unit is connected to the spray assembly 2, and the water flowing out from the first heat exchanger 12 is sprayed by the spray assembly 2 to the fresh air in a large amount of mist-like water mist, and the air and water are exchanged for heat and humidity and then undergo a high-efficiency filtration to remove mist-like water droplets and reach the required temperature through the heater 27.

On the basis of the above embodiment, as a preferred embodiment, the spray assembly 2 includes several pipes arranged along the flow section of the temperature and humidity adjustment chamber 4, and several atomizing nozzles are arranged along the length direction of the pipes to ensure the adequacy of the atomization effect, so that the entire temperature and humidity adjustment chamber 4 is filled with atomized water, so as to ensure that the fresh air passing through the temperature and humidity adjustment chamber 4 can perform sufficient and reliable heat exchange and humidity exchange.

On the basis of the above embodiment, as a preferred embodiment, the exhaust pipe is connected to the temperature and humidity adjustment water supply pipe 25 of the temperature and humidity adjustment circulating water unit, and the temperature and humidity adjustment return water pipe 11 of the temperature and humidity adjustment circulation water unit is connected to the bottom of the temperature and humidity adjustment chamber 4, so that the water after spraying can gather at the bottom of the temperature and humidity adjustment chamber 4, and then flow into the temperature and humidity adjustment return water pipe 11 for recycling. Two sets of pipes are provided, and the two sets of pipes are respectively located at the front and rear ends of the temperature and humidity adjustment chamber 4. The atomizing nozzles on the two sets of pipes are opposite to each other, which not only increases the amount of water mist, but also enables the water mist sprayed by the nozzles to collide with each other, thereby stimulating more uniform and fine water mist, and further improving the heat exchange and humidity adjustment effects.

Furthermore, for the convenience of observation and maintenance, waterproof lighting equipment and airtight inspection doors are provided in the temperature and humidity adjustment chamber 4 .

On the basis of the above-mentioned embodiments, as a preferred embodiment, the temperature and humidity regulating circulating water unit cycle includes a temperature and humidity regulating circulating pump 13 connected to the first heat exchanger 12, and the temperature and humidity regulating circulating pump 13 is used to drive the water exchanged with the first heat exchanger 12 to circulate. The temperature and humidity regulating circulation pump 13 is connected with a solenoid valve reversing 8 through a temperature and humidity regulating water supply pipe 25, one inlet of the solenoid valve reversing 8 is connected with a temperature and humidity regulating water supply pipe 25, the other inlet is connected with a second return pipe 7, and the outlet is connected with a second circulation pump 9; 9.

Further, the ends of the second water return pipe 7 and the temperature-humidity adjustment return pipe 11 are both provided with a water filter 6 .

The second circulation pump 9 is connected to the row pipe, and the second return pipe 7 is connected to the bottom of the temperature and humidity adjustment chamber 4, so a structural form of a large adjustment cycle and a small adjustment cycle can be formed, and the large adjustment cycle formed by the temperature and humidity adjustment circulation pump 13, the solenoid valve reversing 8, the second circulation pump 9, the exhaust pipe, the temperature and humidity adjustment chamber 4, and the temperature and humidity adjustment return pipe 11 can be used to quickly adjust the temperature and humidity; , to fine-tune the temperature and humidity to achieve a constant effect; it can also make the large regulation cycle and a small regulation cycle operate at the same time, so that the water in the large regulation cycle and the water in the small regulation cycle are mixed at the 8th position of the solenoid valve, and then the mixed water is pumped into the exhaust pipe again through the second circulation pump 9, thereby adapting to temperature and humidity regulation under different needs.

On the basis of the above embodiments, as a preferred embodiment, the control unit includes a control module, an information collection module and an execution module, and the control module controls the execution module to perform corresponding action adjustments according to the real-time information collected by the information collection module.

Specifically, the information collection module includes an indoor temperature and humidity sensor arranged in the clean room, an intermediate temperature and humidity sensor arranged in the temperature and humidity adjustment chamber 4, and an external temperature and humidity sensor arranged at the air duct heat exchanger 24; All the pumps and fans in this technical solution use variable frequency pumps.

When the indoor temperature and humidity sensor detects that the indoor temperature and humidity are much higher or lower than the target temperature and humidity, the control module controls the compressor 15 to run at high power to increase the cooling or heating capacity; at the same time, according to the temperature value detected by the external temperature and humidity sensor compared with the set value, the adaptability of the throttle valve opening is reduced, so as to prevent the energy transmitted to the air duct heat exchanger 24 from not being able to prevent condensation, and to avoid condensation due to the high temperature difference between the fresh air and the air duct heat exchanger 24; Fans are operated at high power, and at the same time, the exhaust fan is controlled to operate at low power, and at the same time, the electromagnetic valve is controlled to reversing 8 leads to the temperature and humidity regulating circulation pump 13 and the second circulation pump 9 .

When the indoor temperature and humidity sensor detects that the indoor temperature and humidity are close to the target temperature and humidity, the control module controls the compressor 15 to operate at low power; at the same time, according to the temperature value detected by the external temperature and humidity sensor compared with the set value, the control throttle valve opening adaptability increases, avoiding the energy transmitted to the air duct heat exchanger 24 from not being able to prevent condensation, and avoiding the excessive temperature difference between the fresh air at the air duct heat exchanger 24 and causing condensation; while controlling the temperature and humidity adjustment circulation pump 13, the second circulation pump 9, and the air supply fan to operate at low power. The blower operates at low power, and at the same time controls the solenoid valve reversing 8 to conduct the temperature-humidity regulating circulation pump 13 , the second return pipe 7 and the second circulation pump 9 .

When the indoor temperature and humidity sensor detects that the indoor temperature and humidity reaches the target temperature and humidity, the control module controls the compressor 15 to turn off; at the same time, according to the temperature value detected by the external temperature and humidity sensor compared with the set value, the control throttle valve opening adaptability increases, avoiding the energy transmitted to the air duct heat exchanger 24 can not play the role of avoiding condensation, and can avoid the high temperature difference between the fresh air and the air duct heat exchanger 24 resulting in condensation; at the same time, the temperature and humidity adjustment circulation pump 13 is controlled to run intermittently at low power; When the circulation pump 13 and the second circulation pump 9 control the temperature and humidity adjustment circulation pump 13 to operate at low power; when the control solenoid valve reverses direction 8 and only connects the second return pipe 7 and the second circulation pump 9, control the temperature and humidity adjustment circulation pump 13 to close, and control the second circulation pump 9 to operate at high power.

The non-exhaustive parts of the present invention are conventional technical means known to those skilled in the art.

The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. An air conditioning system for rapidly maintaining constant humidity of clean room temperature comprises an air conditioning circulation unit, a clean room fresh air pipeline (28) and a clean room exhaust pipeline (23), and is characterized in that: the first heat exchanger (12) of the air conditioning circulating unit is connected with a temperature and humidity adjusting circulating water unit, the second heat exchanger (16) of the air conditioning circulating unit is connected with a heat exchange circulating water unit, a fresh air pipeline (28) of the clean room is provided with a temperature and humidity adjusting cavity (4), an air inlet end and an air supply end of the temperature and humidity adjusting cavity (4) are respectively provided with a filtering device, a spraying assembly (2) is arranged between the filtering devices of the air inlet end and the air supply end, spraying water in the spraying assembly (2) and spraying water in the temperature and humidity adjusting cavity (4) circulate through the temperature and humidity adjusting circulating water unit, and the air conditioning circulating unit and the temperature and humidity adjusting circulating water unit are connected with a control unit;

an air pipe heat exchanger (24) is arranged between an air inlet of the clean room fresh air pipeline (28) and an air outlet of the clean room exhaust pipeline (23), two heat exchange return pipes extending out of the second heat exchanger (16) are arranged in parallel, one heat exchange return pipe directly leads to the cooling tower (33) or/and the phase change energy storage device (32), the other heat exchange return pipe leads to the cooling tower (33) or/and the phase change energy storage device (32) after passing through the air pipe heat exchanger (24), and a throttle valve connected with a control unit is arranged on the heat exchange return pipe connected with the air pipe heat exchanger (24);

the spraying assembly (2) comprises a plurality of calandria arranged along the flow section of the temperature and humidity adjusting cavity (4);

the temperature and humidity regulation circulating water unit comprises a temperature and humidity regulation circulating pump (13) connected with a first heat exchanger (12), the temperature and humidity regulation circulating pump (13) is connected with an electromagnetic valve reversing device (8) through a temperature and humidity regulation water supply pipe (25), one inlet of the electromagnetic valve reversing device (8) is connected with the temperature and humidity regulation water supply pipe (25), the other inlet of the electromagnetic valve reversing device is connected with a second water return pipe (7), the outlet of the electromagnetic valve reversing device is connected with a second circulating pump (9), the second circulating pump (9) is connected with the calandria, and the second water return pipe (7) is communicated with the bottom of a temperature and humidity regulation cavity (4);

the control unit comprises a control module, an information acquisition module and an execution module, wherein the information acquisition module comprises an indoor temperature and humidity sensor arranged in a clean room, a middle temperature and humidity sensor arranged in a temperature and humidity adjusting cavity (4) and an external temperature and humidity sensor arranged at an air pipe heat exchanger (24), the execution module comprises an air conditioning circulation unit, a temperature and humidity adjusting circulation pump (13), an electromagnetic valve reversing (8), a second circulation pump (9), a cooling water pump (17), a heater (27) and an air supply fan in a clean room fresh air pipeline (28) and an air exhaust fan in a clean room air exhaust pipeline (23), and the control module controls the execution module according to real-time information acquired by the information acquisition module;

when the indoor temperature and humidity sensor detects that the indoor temperature and humidity is far greater than or far less than the target temperature and humidity, the control module controls the air conditioner circulation unit to operate at high power, so that the refrigerating or heating capacity is improved; meanwhile, according to the comparison of the temperature value detected by the external temperature and humidity sensor and the set value, the opening degree adaptability of the throttle valve is controlled to be reduced, the phenomenon that the energy transmitted to the air pipe heat exchanger cannot play a role in avoiding condensation is avoided, and the phenomenon that the temperature difference between the air pipe heat exchanger and fresh air at the air pipe heat exchanger is too high to cause condensation can be avoided; simultaneously controlling the temperature and humidity regulating circulating pump, the second circulating pump and the air supply fan to operate at high power, simultaneously controlling the air exhaust fan to operate at low power, and simultaneously controlling the electromagnetic valve to change direction so as to only conduct the temperature and humidity regulating circulating pump and the second circulating pump;

when the indoor temperature and humidity sensor detects that the indoor temperature and humidity is close to the target temperature and humidity, the control module controls the air conditioner circulating unit to run at low power; meanwhile, according to the comparison of the temperature value detected by the external temperature and humidity sensor and the set value, the opening of the throttle valve is controlled to be adaptively increased, the phenomenon that the energy transmitted to the air pipe heat exchanger cannot play a role in avoiding condensation is avoided, and the phenomenon that the temperature difference between the air pipe heat exchanger and fresh air at the air pipe heat exchanger is too high to cause condensation can be avoided; simultaneously controlling the temperature and humidity regulation circulating pump, the second circulating pump and the air supply fan to run at low power, simultaneously controlling the air exhaust fan to run at low power, and simultaneously controlling the electromagnetic valve to conduct the temperature and humidity regulation circulating pump, the second water return pipe and the second circulating pump in a reversing way;

when the indoor temperature and humidity sensor detects that the indoor temperature and humidity reach the target temperature and humidity, the control module controls the air conditioner circulation unit to be closed; meanwhile, according to the comparison of the temperature value detected by the external temperature and humidity sensor and the set value, the opening of the throttle valve is controlled to be adaptively increased, the phenomenon that the energy transmitted to the air pipe heat exchanger cannot play a role in avoiding condensation is avoided, and the phenomenon that the temperature difference between the air pipe heat exchanger and fresh air at the air pipe heat exchanger is too high to cause condensation can be avoided; meanwhile, intermittent low-power operation of the temperature and humidity regulating circulating pump is controlled; when the reversing of the electromagnetic valve is controlled, only the temperature and humidity regulating circulating pump and the second circulating pump are conducted, the temperature and humidity regulating circulating pump is controlled to operate at low power; when the reversing of the electromagnetic valve is controlled, the second water return pipe and the second circulating pump are only conducted, the temperature and humidity regulating circulating pump is controlled to be closed, and the second circulating pump is controlled to operate at high power.

2. The air conditioning system for rapidly maintaining constant humidity of a clean room temperature according to claim 1, wherein: the heat exchange circulating water unit comprises a cooling water pump (17), a cooling tower (33) or/and a phase change energy storage device (32), and performs heat exchange with a natural cold source through the cooling tower (33) or/and the phase change energy storage device (32).

3. The air conditioning system for rapidly maintaining constant humidity of a clean room temperature according to claim 1, wherein: an ultraviolet sterilization device (19) and a high-efficiency filter (20) are arranged in a fresh air pipeline between the temperature and humidity adjusting cavity (4) and the clean room, and the high-efficiency filter (20) is arranged in the fresh air pipeline between the ultraviolet sterilization device (19) and the clean room.

4. An air conditioning system for rapidly maintaining constant humidity at a clean room temperature according to any one of claims 1 to 3, wherein: the filtering device of the air inlet end of the temperature and humidity adjusting cavity (4) comprises a low-level filter (29), a middle-level filter (30) and a front water baffle (1) which are arranged at intervals, wherein the middle-level filter (30) is arranged between the low-level filter (29) and the front water baffle (1), and the front water baffle (1) is positioned at one side close to the spraying assembly (2).

5. The air conditioning system for rapidly maintaining a constant humidity of a clean room temperature of claim 4, wherein: the filtering device of the air supply end of the temperature and humidity adjusting cavity (4) comprises a rear water baffle (3), a high-level filter (21) and a heater (27) which are arranged at intervals, wherein the high-level filter (21) is arranged between the rear water baffle (3) and the heater (27), and the rear water baffle (3) is positioned at one side close to the spraying assembly (2).

6. The air conditioning system for rapidly maintaining a constant humidity of a clean room temperature of claim 5, wherein: along the length direction of calandria is provided with a plurality of atomizing nozzle, the calandria links to each other with temperature and humidity regulation water supply pipe (25) of temperature and humidity regulation circulating water unit, and temperature and humidity regulation water return pipe (11) of temperature and humidity regulation circulating water unit communicate in the bottom of temperature and humidity regulation chamber (4), the calandria is provided with two sets of, and two sets of calandria are located the front and back both ends in temperature and humidity regulation chamber (4) respectively, and the atomizer on two sets of calandria is relative from beginning to end.

7. An air conditioning system for rapidly maintaining constant humidity at clean room temperature according to any one of claims 1 to 3, 5 to 6, characterized in that: the air conditioning circulation unit comprises a compressor (15), the compressor (15) is respectively connected with the first heat exchanger (12) and the second heat exchanger (16) through a four-way electromagnetic reversing valve (18), and the first heat exchanger (12) is connected with the second heat exchanger (16) through an expansion valve (14).