A full-condition comprehensive environment adjusting system

Abstract

The utility model discloses a kind of full working condition comprehensive environment regulating system, including air filter, primary compressor, secondary compressor, expander, 1# three-way valve, 2# three-way valve, 3# three-way valve, 1# electric regulating valve, 2# electric regulating valve, 1# heat exchanger, 2# heat exchanger, 3# heat exchanger, outdoor fan, outdoor heat exchanger, indoor heat exchanger, indoor fan, molecular sieve oxygen generator, water pump, air valve, air compression refrigeration cycle and cooling liquid heat exchange cycle are formed respectively, wherein air compression refrigeration cycle can realize three modes of full fresh air, mixed inlet air and internal circulation. The utility model proposes to use air as the reverse brayton cycle principle of circulation, and the different needs of personnel equipment and personnel to comprehensive environment regulating system under the full working condition environmental conditions of different altitudes and ambient temperature are proposed comprehensive environment regulating system function and working area division scheme.

Description

Technical Field

[0001] This utility model relates to the field of integrated environmental control systems, specifically an integrated environmental control system for all operating conditions. Background Technology

[0002] With the rapid development of high-tech weapons characterized by information technology, weapon systems generate significant heat while delivering powerful performance. Maintaining operator comfort is crucial for the overall performance of these systems. Therefore, the integrated environmental control system for weapon combat units, such as armored vehicles, tanks, and specialized weapon equipment vehicles, is a key aspect of comprehensive weapon system design, encompassing factors such as personnel and equipment.

[0003] The current technological status of integrated environmental control systems for all-condition equipment and personnel is as follows:

[0004] ① Equipment Cooling Function: Under full operating conditions (-40℃~55℃), the heat emitted by the equipment will accumulate and cause its performance to degrade sharply. To solve this problem, equipment with cooling function must be provided to maintain a stable cabin temperature and allow the equipment to achieve high-performance output. Existing equipment uses the Freon compression refrigeration principle or the forced air-liquid heat exchange principle.

[0005] ② Personnel cooling / fresh air and filtration function: Under high-temperature conditions (35℃~55℃), when the cabin is exposed to the outdoor environment, solar radiation and thermal convection caused by the temperature difference between the inside and outside of the cabin will quickly raise the temperature inside the cabin to above 35℃. The combat capability of operators is greatly reduced under such environmental conditions. To solve this problem, equipment with cooling function must be provided. The existing equipment uses the Freon compression refrigeration principle.

[0006] ③ Heating function for personnel: Under low-temperature conditions (-40℃ to 0℃), in order to maintain the comfort of the personnel in the cabin, the general practice is to equip the personnel with air conditioning equipment with heating function (integrated with the air conditioning equipment mentioned in ② above). The existing equipment uses technology that utilizes the preheating recovery of the engine for heat recovery or uses electric heating for heat recovery.

[0007] ④ Personnel oxygenation / cabin pressurization function: Under high-altitude conditions (altitude ≥ 3000m), operators may experience altitude sickness symptoms such as headache, dizziness, insomnia, fatigue, and blurred vision. The higher the altitude, the greater the impact. To address this issue, oxygen generation or pressurization equipment is required. The existing equipment uses molecular sieve oxygen generation technology, and the pressurization technology uses independent pipelines equipped with pressurization fans to pressurize the cabin.

[0008] To address the environmental regulation challenges faced by equipment and personnel across all operating conditions, the existing technical support system comprises four independent equipment units: cooling equipment, personnel air conditioning / cooling equipment, personnel oxygen generation equipment, and cabin pressurization equipment. However, the following shortcomings exist in the integration process:

[0009] ① If refrigerant leaks into equipment cooling systems and personnel air conditioning systems that use Freon compression refrigeration, the equipment will fail and become inoperable.

[0010] ② Equipment cooling equipment that uses the principle of forced air-liquid heat exchange is prone to coolant leakage under low-temperature conditions.

[0011] ③ Personnel air conditioning systems that use the engine preheating recovery principle are complex and cannot generate heat when the vehicle is parked.

[0012] ④ Air conditioning equipment that uses electric heating has high energy consumption, and there are safety hazards if the control fails.

[0013] ⑤ Each piece of equipment is configured separately, making lightweight and miniaturized design impossible; each piece of equipment operates independently, making integrated design and control impossible.

[0014] Based on the current state of technology for integrated equipment and personnel environmental control systems, and in order to address the shortcomings of existing equipment technology, this utility model proposes an integrated equipment and personnel environmental control system for all operating conditions, taking advantage of the reverse Brayton air compression principle. Utility Model Content

[0015] This invention proposes a comprehensive environmental control system for all operating conditions to solve the problems of low integration and low reliability of existing equipment and personnel environmental control systems.

[0016] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0017] A comprehensive environmental control system for all operating conditions includes a primary compressor (2), a secondary compressor (6), an expander (15), a 1# three-way valve (5), a 2# three-way valve (13), a 3# three-way valve (19), a 1# electric regulating valve (8), a 2# electric regulating valve (14), a 1# heat exchanger (18), a 2# heat exchanger (7), a 3# heat exchanger (16), an outdoor heat exchanger (4) and its configured outdoor fan (3), an indoor heat exchanger (10) and its configured indoor fan (11), a molecular sieve oxygen generator (9), and a water pump (17).

[0018] The inlet of the first-stage compressor (2) is connected to the outside of the cabin. The inlet of the first-stage compressor (2) is also connected to one valve port of the 3# three-way valve (19) through a pipeline. Thus, the first-stage compressor (2) introduces fresh air from outside the cabin and cabin air flowing through the 3# three-way valve (19). The outlet of the first-stage compressor (2) is connected to the air-side inlet of the 1# heat exchanger (18) through a pipeline. The air-side outlet of the 1# heat exchanger (18) is connected to the inlet of the second-stage compressor (6) through a pipeline. The outlet of the second-stage compressor (6) is connected to the air-side inlet of the 2# heat exchanger (7) through a pipeline.

[0019] The air outlet of heat exchanger #2 (7) has two pipelines. The first pipeline of the air outlet of heat exchanger #2 is connected to the inlet of electric regulating valve #1 (8). The outlet of electric regulating valve #1 (8) is connected to the inlet of molecular sieve oxygen generator (9) through a pipeline. The outlet of molecular sieve oxygen generator (9) is connected to the personnel cabin through a pipeline. The second outlet of the air outlet of heat exchanger #2 (7) is connected to the inlet of expander (15) through a pipeline. The outlet of expander (15) is connected to one valve port of three-way valve #2 (13). The other valve port of three-way valve #2 (13) is connected to the equipment cabin through a pipeline.

[0020] The inlet of the #2 electric regulating valve (14) is connected to the exhaust port inside the cabin. The third valve port of the #2 three-way valve (13) and the outlet of the #2 electric regulating valve (14) are connected to the air inlet of the #3 heat exchanger (16) through a pipeline. The air outlet of the #3 heat exchanger (16) is connected to the other valve port of the #3 three-way valve (19) through a pipeline. The third valve port of the #3 three-way valve (19) is connected to the outside of the cabin through a pipeline.

[0021] The outlet of the water pump (17) is connected to the coolant side inlet of the #1 heat exchanger (18) through a pipeline. The coolant side outlet of the #1 heat exchanger (18) is connected to the inlet of the #1 three-way valve (5) through a pipeline. The #1 three-way valve (5) has two outlets. The two outlets of the #1 three-way valve (5) are connected to the inlets of the indoor heat exchanger (10) and the outdoor heat exchanger (4) respectively. The outlets of the indoor heat exchanger (10) and the outdoor heat exchanger (4) are both connected to the coolant side inlet of the #2 heat exchanger (7). The coolant side outlet of the #2 heat exchanger (7) is connected to the coolant side inlet of the #3 heat exchanger (16) through a pipeline. The coolant side outlet of the #3 heat exchanger (16) is connected to the inlet of the water pump (17) through a pipeline.

[0022] Furthermore, the inlet of the first-stage compressor (2) is simultaneously connected to the outside of the cabin and the 3# three-way valve (19). The connection to the outside of the cabin realizes the fresh air compression and refrigeration cycle, and the connection to the 3# three-way valve (19) realizes the indoor circulating air compression cycle and pressurization cycle. By adjusting the opening of the 3# three-way valve (19) between 0 and 100%, the air compression cycle and pressurization cycle of mixed air intake in the cabin are realized.

[0023] Furthermore, the air-side outlet of the #2 heat exchanger (7) is simultaneously connected to the #1 electric regulating valve (8) and the expander (15). By adjusting the opening of the #1 electric regulating valve (8), the flow rate of compressed air entering the molecular sieve oxygen generator (9) is controlled, thereby further controlling the oxygen production output of the system.

[0024] Furthermore, the primary compressor (2) and the secondary compressor (6) are both high-speed centrifugal compressors, and the primary compressor (2) and the secondary compressor (6) are driven independently; the expander (15) is a high-speed turbine expander, and the expander (15) is driven independently, or the expander (15) and the secondary compressor (6) are driven coaxially.

[0025] Furthermore, by adjusting the opening of the No. 2 three-way valve (13), the cooling capacity inside the equipment compartment can be steplessly adjusted from 0 to 100%.

[0026] Furthermore, the outlet of the No. 1 three-way valve (5) is connected to the inlet of the indoor heat exchanger (10) and the outdoor heat exchanger (4) respectively through pipelines to realize the start and stop of the heating function in the personnel cabin.

[0027] Furthermore, the coolant flows sequentially through heat exchanger #1 (18), heat exchanger #2 (7), and heat exchanger #3 (16) under the action of the water pump (17), thereby achieving multiple heat recovery. The coolant then passes through the outdoor heat exchanger (4) to discharge the heat to the outside of the cabin or through the indoor heat exchanger (10) to deliver the heat to the personnel cabin to heat the personnel.

[0028] Furthermore, an air valve (12) is provided between the personnel compartment and the equipment compartment, and the opening and closing of the air valve (12) is adjusted to match the temperature requirements of the personnel compartment and the equipment compartment.

[0029] Compared with the prior art, the advantages of this utility model are:

[0030] 1. This utility model integrates functions such as equipment cooling, personnel cooling, personnel heating, personnel oxygenation, cabin fresh air and filtration, and cabin pressurization into a single system, achieving a high degree of integration;

[0031] 2. This utility model uses air as the circulating working fluid, which is safe, environmentally friendly, and highly reliable. It can achieve full-condition adaptability in a wide temperature range (-40℃ to 55℃) and high-altitude environments (0 to 5500m).

[0032] 3. This utility model can be coupled according to different functions required by personnel and equipment based on altitude and ambient temperature. It is easy to operate and can easily achieve a high degree of automation and high reliability.

[0033] 4. This utility model system is highly integrated, making it easy to achieve lightweight and miniaturized design of the environmental control device.

[0034] 5. The technology of this utility model is mature and easy to implement. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the working principle of the system of this utility model.

[0036] Figure 2 This is a diagram showing the division of the working area of ​​this utility model.

[0037] Numbering in the diagram: 1-Air filter, 2-First stage compressor, 3-Outdoor fan, 4-Outdoor heat exchanger, 5-1# three-way valve, 6-Second stage compressor, 7-2# heat exchanger, 8-1# electric regulating valve, 9-Molecular sieve oxygen generator, 10-Indoor heat exchanger, 11-Indoor fan, 12-Air valve, 13-2# three-way valve, 14-2# electric regulating valve, 15-Expander, 16-3# heat exchanger, 17-Water pump, 18-1# heat exchanger, 19-3# three-way valve. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] like Figure 1 As shown, this embodiment discloses a comprehensive environmental control system for all operating conditions, characterized in that it includes an air filter 1, a primary compressor 2, a secondary compressor 6, an expander 15, a #1 three-way valve 5, a #2 three-way valve 13, a #3 three-way valve 19, a #1 electric regulating valve 8, a #2 electric regulating valve 14, a #1 heat exchanger 18, a #2 heat exchanger 7, a #3 heat exchanger 16, an outdoor heat exchanger 4 and its configured outdoor fan 3, an indoor heat exchanger 10 and its configured indoor fan 11, a molecular sieve oxygen generator 9, a water pump 17, and an air valve 12.

[0040] Both the primary compressor 2 and the secondary compressor 6 are high-speed centrifugal compressors, and the primary compressor 2 and the secondary compressor 6 are driven independently; the expander 15 is a high-speed turbine expander, and the expander 15 is driven independently, or the expander 15 and the secondary compressor 6 are driven coaxially.

[0041] The air valve 12 is located between the personnel compartment and the equipment compartment. The opening and closing of the air valve 12 is adjusted to match the temperature requirements of the personnel compartment and the equipment compartment.

[0042] The outdoor heat exchanger 4 and its configured outdoor fan 3 are located outside the cabin, while the indoor heat exchanger 10 and its configured indoor fan 11 are located inside the personnel cabin.

[0043] The inlet of the first-stage compressor 2 is connected to the outside of the cabin through the air filter 1. The inlet of the first-stage compressor 2 is also connected to one valve port of the 3# three-way valve 19 through a pipeline. The inlet of the first-stage compressor 2 is connected to both the outside of the cabin and the 3# three-way valve 19. Connecting to the outside of the cabin enables a fresh air compression and refrigeration cycle, while connecting to the 3# three-way valve 19 enables indoor circulating air compression and pressurization cycles. Thus, the first-stage compressor 2 introduces fresh air from outside the cabin and cabin air flowing through the 3# three-way valve 19. By adjusting the opening of the 3# three-way valve 19 between 0% and 100%, the air compression and pressurization cycles of the mixed intake air in the cabin are achieved.

[0044] The outlet of the first-stage compressor 2 is connected to the air-side inlet of the first-stage heat exchanger 18 via a pipeline. The air-side outlet of the first-stage heat exchanger 18 is connected to the inlet of the second-stage compressor 6 via a pipeline. The outlet of the second-stage compressor 6 is connected to the air-side inlet of the second-stage heat exchanger 7 via a pipeline.

[0045] The air-side outlet of heat exchanger #2 has two pipelines. The first pipeline of the air-side outlet of heat exchanger #2 is connected to the inlet of electric regulating valve #1 8. The outlet of electric regulating valve #1 8 is connected to the inlet of molecular sieve oxygen generator #9 through a pipeline. The outlet of molecular sieve oxygen generator #9 is connected to the personnel compartment through a pipeline. The second outlet of the air-side outlet of heat exchanger #2 is connected to the inlet of expander #15 through a pipeline. The outlet of expander #15 is connected to one valve port of three-way valve #2 13. The other valve port of three-way valve #2 13 is connected to the equipment compartment through a pipeline.

[0046] The air-side outlet of heat exchanger #2 7 is simultaneously connected to electric regulating valve #1 8 and expander 15. By adjusting the opening of electric regulating valve #1 8, the flow rate of compressed air entering molecular sieve oxygen generator 9 is controlled, further controlling the oxygen output of the system. Furthermore, by adjusting the opening of three-way valve #2 13, stepless adjustment of the cooling capacity within the equipment compartment from 0% to 100% can be achieved.

[0047] The inlet of the #2 electric regulating valve 14 is connected to the exhaust port inside the cabin. The third valve port of the #2 three-way valve 13 and the outlet of the #2 electric regulating valve 14 are connected to the air inlet of the #3 heat exchanger 16 through a pipeline. The air outlet of the #3 heat exchanger 16 is connected to the other valve port of the #3 three-way valve 19 through a pipeline. The third valve port of the #3 three-way valve 19 is connected to the outside of the cabin through a pipeline.

[0048] The outlet of water pump 17 is connected to the coolant side inlet of heat exchanger 18 via a pipeline. The coolant side outlet of heat exchanger 18 is connected to the inlet of three-way valve 5 via a pipeline. Three-way valve 5 has two outlets, which are connected to the inlets of indoor heat exchanger 10 and outdoor heat exchanger 4 respectively. The outlets of indoor heat exchanger 10 and outdoor heat exchanger 4 are both connected to the coolant side inlet of heat exchanger 7. The coolant side outlet of heat exchanger 7 is connected to the coolant side inlet of heat exchanger 36 via a pipeline. The coolant side outlet of heat exchanger 36 is connected to the inlet of water pump 17 via a pipeline.

[0049] The outlet of the #1 three-way valve 5 is connected to the inlet of the indoor heat exchanger 10 and the outdoor heat exchanger 4 through pipelines to realize the start and stop of the heating function in the personnel cabin.

[0050] The coolant flows sequentially through heat exchanger 18, heat exchanger 7, and heat exchanger 3 under the action of water pump 17, thereby achieving multiple heat recovery. The coolant then flows to outdoor heat exchanger 4 to discharge the heat outside the cabin or to indoor heat exchanger 10 to deliver the heat to the personnel cabin to provide heating for the personnel.

[0051] This embodiment uses air as the circulating medium based on the reverse Brayton cycle principle. The working process is as follows:

[0052] Outside air at normal temperature and pressure enters the first-stage compressor 2 through air filter 1. In the first-stage compressor 2, it is compressed into high-temperature and medium-pressure air and enters the air-side inlet of heat exchanger 18. After being cooled by coolant in heat exchanger 18, it becomes medium-temperature and medium-pressure air and is discharged from the air-side outlet of heat exchanger 18 into the second-stage compressor 6. In the second-stage compressor 6, it is compressed into high-temperature and high-pressure air and enters the air-side inlet of heat exchanger 2. After being cooled by coolant in heat exchanger 7, it becomes medium-temperature and high-pressure air and is discharged from the air-side outlet of heat exchanger 2.

[0053] The medium-temperature, high-pressure air discharged from the air-side outlet of heat exchanger #2 7 is divided into two streams. One stream of medium-temperature, high-pressure air from the air-side outlet of heat exchanger #2 7 enters the molecular sieve oxygen generator 9 in the oxygen generation branch via electric regulating valve #1. In the molecular sieve oxygen generator 9, oxygen and nitrogen are separated, and oxygen is extracted and enters the personnel cabin. The other stream of medium-temperature, high-pressure air from the air-side outlet of heat exchanger #2 7 enters the expander 15 in the main refrigeration circuit. In the expander 15, the air expands and depressurizes, becoming atmospheric pressure low-temperature air, which then enters the three-way valve #2 13.

[0054] Atmospheric pressure low-temperature air enters the equipment compartment through one port of three-way valve 13, and enters heat exchanger 16 of No. 3 through the other port of three-way valve 13. After the cold energy is recovered by heat exchanger 16 of No. 3, it enters three-way valve 19 of No. 3, and is discharged outside the compartment through three-way valve 19 or enters the first-stage compressor 2 for air compression cycle.

[0055] Adjust the opening degree of electric regulating valve 14 (No. 2) according to the pressure requirements of the personnel compartment and equipment compartment, and adjust the opening degree of air valve 12 according to the temperature requirements of the personnel compartment and equipment compartment, thereby completing the air compression cycle.

[0056] Low-temperature coolant that has released heat from outdoor heat exchanger 4 or indoor heat exchanger 10 enters the coolant side inlet of heat exchanger 7 #2. Inside heat exchanger 7, it exchanges heat with the high-temperature, high-pressure air generated by the secondary compressor 6 and becomes high-temperature coolant. The high-temperature coolant is discharged from the coolant side outlet of heat exchanger 7 #2 to heat exchanger 16 #3. In heat exchanger 16, it exchanges heat with the exhaust gas in the equipment compartment and becomes medium-temperature coolant after cold energy recovery. Medium-temperature coolant flows from the coolant side outlet of heat exchanger #3 16 to water pump 17. After being powered by water pump 17, the coolant enters heat exchanger #1 18. In heat exchanger #1 18, the coolant exchanges heat with medium-pressure high-temperature air from primary compressor 2 and becomes high-temperature coolant. The high-temperature coolant enters indoor heat exchanger 10 or outdoor heat exchanger 4 through three-way valve #1 5. In indoor heat exchanger 10 or outdoor heat exchanger 4, the high-temperature coolant releases heat through forced convection with air via the corresponding indoor fan 11 or outdoor fan 3, and then re-enters heat exchanger #2 7 to complete the coolant heat exchange cycle.

[0057] Figure 2 This is a diagram showing the division of the working area in this embodiment. The horizontal axis represents changes in ambient temperature, and the vertical axis represents changes in altitude. By utilizing the different functional modes of this invention, six typical working areas are formed:

[0058] Zone A (personnel compartment heating + equipment compartment cooling): When -40℃≤ambient temperature<10℃, 0m≤altitude<3000m, air valve 12 is closed, the outlet of 1# three-way valve 5 is switched to the indoor heat exchanger, and the personnel compartment heating function is turned on; 1# electric regulating valve 8 is closed, the oxygen production function is not turned on, 2# three-way valve 13 is switched to the indoor air supply pipe, 2# electric regulating valve 14 is opened, and 3# three-way valve 19 is switched to connect with the inlet of the first-stage compressor 2, and the equipment compartment circulating air compression cooling function is turned on.

[0059] Zone B (personnel compartment heating + personnel compartment oxygen production + equipment compartment cooling): When -40℃≤ambient temperature<10℃, 3000m≤altitude≤5500m, air valve 12 is closed, outlet of 1# three-way valve 5 is switched to the indoor heat exchanger, and the personnel compartment heating function is turned on; 1# electric regulating valve 8 is opened, and the oxygen production function is turned on; 2# three-way valve 13 is switched to the indoor air supply pipe; 2# electric regulating valve 14 is opened; 3# three-way valve 19 is switched to the external exhaust pipe (opening degree 0~100%), and the equipment fresh air (mixed intake air) circulating air compression cooling function is turned on.

[0060] Zone C (Oxygen generation in personnel compartment + cooling in equipment compartment): When 10℃≤Ambient temperature<35℃ and 3000m≤Altitude≤5500m, air valve 12 is closed, outlet of 1# three-way valve 5 is switched to the outdoor heat exchanger, and the heating function of personnel compartment is turned off; 1# electric regulating valve 8 is opened, the oxygen generation function is turned on, 2# three-way valve 13 is switched to the indoor air supply pipe, 2# electric regulating valve 14 is opened, 3# three-way valve 19 is switched to the outdoor exhaust pipe (opening degree 0~100%), and the equipment fresh air (mixed air intake) circulating air compression cooling function is turned on.

[0061] Zone D (personnel compartment cooling + personnel compartment oxygen generation + equipment compartment cooling): When 35℃≤ambient temperature≤55℃ and 3000m≤altitude≤5500m, air valve 12 is opened (opening degree 0~100%), outlet of 1# three-way valve 5 is switched to the outdoor heat exchanger, and the personnel compartment cooling function is activated; 1# electric regulating valve 8 is opened, and the oxygen generation function is activated; 2# three-way valve 13 is switched to the indoor air supply pipe; 2# electric regulating valve 14 is opened; 3# three-way valve 19 is switched to the outdoor exhaust pipe (opening degree 0~100%), and the equipment fresh air (mixed intake air) circulating air compression cooling function is activated.

[0062] Zone E (personnel compartment cooling + equipment compartment cooling): When 35℃≤ambient temperature≤55℃ and 0m≤altitude<3000m, air valve 12 is opened (opening degree 0~100%), the outlet of 1# three-way valve 5 is switched to the outdoor heat exchanger, and the personnel compartment cooling function is turned on; 1# electric regulating valve 8 is closed, the oxygen generation function is turned off, 2# three-way valve 13 is switched to the indoor air supply pipe, 2# electric regulating valve 14 is opened, and 3# three-way valve 19 is switched to the outdoor exhaust pipe (opening degree 0~100%), and the equipment fresh air (mixed intake air) circulating air compression cooling function is turned on.

[0063] Zone F (Equipment Cabin Cooling): When 10℃≤Ambient Temperature<35℃ and 0m≤Altitude≤3000m, air valve 12 is closed, the outlet of 1# three-way valve 5 is switched to the outdoor heat exchanger, and the personnel cabin cooling function is turned off; 1# electric regulating valve 8 is closed, the oxygen generation function is turned off, 2# three-way valve 13 is switched to the indoor air supply pipe, 2# electric regulating valve 14 is opened, and 3# three-way valve 19 is switched to the inlet of the first-stage compressor 2, and the equipment cabin circulating air compression cooling function is turned on.

[0064] The preferred embodiments of this utility model have been described in detail above with reference to the accompanying drawings. These embodiments are merely descriptions of preferred embodiments and are not intended to limit the concept and scope of this utility model. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. Such combinations, as long as they do not violate the spirit of this utility model, should also be considered as part of this disclosure. To avoid unnecessary repetition, this utility model will not further describe all possible combinations.

[0065] This utility model is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this utility model and without departing from the design idea of ​​this utility model, all modifications and improvements made by those skilled in the art to the technical solution of this utility model should fall within the protection scope of this utility model. The technical content for which protection is sought in this utility model has been fully recorded in the claims.

Claims

1. A comprehensive environmental control system for all operating conditions, characterized in that, Includes a primary compressor (2), a secondary compressor (6), an expander (15), a 1# three-way valve (5), a 2# three-way valve (13), a 3# three-way valve (19), a 1# electric regulating valve (8), a 2# electric regulating valve (14), a 1# heat exchanger (18), a 2# heat exchanger (7), a 3# heat exchanger (16), an outdoor heat exchanger (4) and its configured outdoor fan (3), an indoor heat exchanger (10) and its configured indoor fan (11), a molecular sieve oxygen generator (9), and a water pump (17); The inlet of the first-stage compressor (2) is connected to the outside of the cabin. The inlet of the first-stage compressor (2) is also connected to one valve port of the 3# three-way valve (19) through a pipeline. Thus, the first-stage compressor (2) introduces fresh air from outside the cabin and cabin air flowing through the 3# three-way valve (19). The outlet of the first-stage compressor (2) is connected to the air-side inlet of the 1# heat exchanger (18) through a pipeline. The air-side outlet of the 1# heat exchanger (18) is connected to the inlet of the second-stage compressor (6) through a pipeline. The outlet of the second-stage compressor (6) is connected to the air-side inlet of the 2# heat exchanger (7) through a pipeline. The air outlet of heat exchanger #2 (7) has two pipelines. The first pipeline of the air outlet of heat exchanger #2 is connected to the inlet of electric regulating valve #1 (8). The outlet of electric regulating valve #1 (8) is connected to the inlet of molecular sieve oxygen generator (9) through a pipeline. The outlet of molecular sieve oxygen generator (9) is connected to the personnel cabin through a pipeline. The second outlet of the air outlet of heat exchanger #2 (7) is connected to the inlet of expander (15) through a pipeline. The outlet of expander (15) is connected to one valve port of three-way valve #2 (13). The other valve port of three-way valve #2 (13) is connected to the equipment cabin through a pipeline. The inlet of the #2 electric regulating valve (14) is connected to the exhaust port inside the cabin. The third valve port of the #2 three-way valve (13) and the outlet of the #2 electric regulating valve (14) are connected to the air inlet of the #3 heat exchanger (16) through a pipeline. The air outlet of the #3 heat exchanger (16) is connected to the other valve port of the #3 three-way valve (19) through a pipeline. The third valve port of the #3 three-way valve (19) is connected to the outside of the cabin through a pipeline. The outlet of the water pump (17) is connected to the coolant side inlet of the #1 heat exchanger (18) through a pipeline. The coolant side outlet of the #1 heat exchanger (18) is connected to the inlet of the #1 three-way valve (5) through a pipeline. The #1 three-way valve (5) has two outlets. The two outlets of the #1 three-way valve (5) are connected to the inlets of the indoor heat exchanger (10) and the outdoor heat exchanger (4) respectively. The outlets of the indoor heat exchanger (10) and the outdoor heat exchanger (4) are both connected to the coolant side inlet of the #2 heat exchanger (7). The coolant side outlet of the #2 heat exchanger (7) is connected to the coolant side inlet of the #3 heat exchanger (16) through a pipeline. The coolant side outlet of the #3 heat exchanger (16) is connected to the inlet of the water pump (17) through a pipeline.

2. The comprehensive environmental control system for all operating conditions according to claim 1, characterized in that, The inlet of the first-stage compressor (2) is simultaneously connected to the outside of the cabin and the 3# three-way valve (19). The connection to the outside of the cabin realizes the fresh air compression and refrigeration cycle, and the connection to the 3# three-way valve (19) realizes the indoor circulating air compression cycle and pressurization cycle. By adjusting the opening of the 3# three-way valve (19) between 0 and 100%, the air compression cycle and pressurization cycle of mixed air intake in the cabin are realized.

3. The comprehensive environmental control system for all operating conditions according to claim 1, characterized in that, The air outlet of the #2 heat exchanger (7) is simultaneously connected to the #1 electric regulating valve (8) and the expander (15). By adjusting the opening of the #1 electric regulating valve (8), the flow rate of compressed air entering the molecular sieve oxygen generator (9) is controlled, thereby further controlling the oxygen output of the system.

4. The comprehensive environmental control system for all operating conditions according to claim 1, characterized in that, The primary compressor (2) and the secondary compressor (6) are both high-speed centrifugal compressors, and the primary compressor (2) and the secondary compressor (6) are driven independently; the expander (15) is a high-speed turbine expander, and the expander (15) is driven independently, or the expander (15) and the secondary compressor (6) are driven coaxially.

5. The comprehensive environmental control system for all operating conditions according to claim 1, characterized in that, By adjusting the opening of the No. 2 three-way valve (13), the cooling capacity inside the equipment compartment can be steplessly adjusted from 0 to 100%.

6. The comprehensive environmental control system for all operating conditions according to claim 1, characterized in that, The outlet of the No. 1 three-way valve (5) is connected to the inlet of the indoor heat exchanger (10) and the outdoor heat exchanger (4) through pipelines to realize the start and stop of the heating function in the personnel cabin.

7. The comprehensive environmental control system for all operating conditions according to claim 1, characterized in that, The coolant flows through heat exchanger 1 (18), heat exchanger 2 (7), and heat exchanger 3 (16) in sequence under the action of water pump (17), thereby realizing multiple heat recovery. The coolant then passes through the outdoor heat exchanger (4) to discharge the heat to the outside of the cabin or through the indoor heat exchanger (10) to send the heat to the personnel cabin to heat the personnel.

8. The comprehensive environmental control system for all operating conditions according to claim 1, characterized in that, An air valve (12) is provided between the personnel compartment and the equipment compartment. The opening and closing of the air valve (12) is adjusted to match the temperature requirements of the personnel compartment and the equipment compartment.

Images