An environmental control machine and environmental control system for a super-deep saturation living cabin

Abstract

The present invention provides an external environmental control unit for an ultra-deep saturation living cabin. The environmental control unit is arranged outside the pressurized living cabin and includes a high-pressure water unit, a gas purification unit, a dehumidification unit, a temperature control unit, a fan unit, and a control unit. The dehumidification unit and the temperature control unit of the environmental control unit are respectively connected to the cold and hot water media of a hot and cold water unit. After the gas in the cabin is extracted by the fan unit, it passes through the gas purification unit, dehumidification unit, fan unit, and temperature control unit in the environmental control unit in sequence and is then transported back to the living cabin. The environmental control unit of the present invention can stably and effectively achieve temperature control, dehumidification, and harmful gas removal in the pressurized living cabin.

Description

Technical Field

[0001] The present invention relates to an environmental control machine for a super-deep saturation living cabin, in particular to an external environmental control machine for a super-deep saturation living cabin. Background Art

[0002] Saturation diving is a high-risk, high-intensity operation. Divers live in a small, enclosed environment with high pressure and a significant difference between the ambient atmosphere and standard atmospheric conditions. Therefore, it is essential to maintain a comfortable living environment for divers and allow them to rest properly. An existing invention patent application (CN117622457A) discloses an external circulation environmental control system for a pressurized living chamber, which can control the chamber's temperature, humidity, harmful gas content, and noise levels. However, the solution disclosed in this invention patent application also presents numerous problems. For example, the spray tank and the harmful gas absorption tank are connected by a pipeline. Due to the high moisture content of the sprayed gas, a large amount of condensed water accumulates in the pipeline between the spray tank and the harmful gas absorption tank during long-distance transportation. This significantly reduces the gas transmission capacity of the pipeline, which in turn affects the operation of the entire system. For example, existing fans are conventional exhaust fans, which produce low gas flow rates. After long-distance transmission through pipelines, this low-speed gas will also produce a large amount of condensed water on the pipe walls. Furthermore, the existing fan and condensing heat exchanger are integrated into a single heat exchanger tank, resulting in a complex structure and significant installation and maintenance difficulties. The fan and condensing heat exchanger also interact, limiting their performance. For another example, in the aforementioned invention patent application, all drain water must be collected and discharged into a main drain pipe. However, the pressure of the drain water varies at different locations in the system, making it difficult to drain the low-pressure side of the drain water. Summary of the Invention

[0003] In view of the problems and shortcomings of the prior art, the present invention provides an external environmental control machine and an environmental control system for an ultra-deep saturation living cabin.

[0004] The environmental control machine is arranged outside the pressurized living cabin, and includes a high-pressure water unit, a gas purification unit, a dehumidification unit, a temperature control unit, a fan unit, and a control unit; the environmental control machine is provided with a water supply port, a gas inlet, a gas return port, a refrigerant water inlet, a refrigerant water outlet, a heat medium water inlet, a heat medium water outlet, a high-pressure side drain port, and a low-pressure side drain port; the gas inlet of the environmental control machine is connected to the gas outlet pipe in the cabin of the living cabin through a solenoid valve, and the gas return port of the environmental control machine is connected to the gas return pipe in the cabin of the living cabin through a solenoid valve; the refrigerant water inlet, refrigerant water outlet, heat medium water inlet, and heat medium water outlet of the environmental control machine are respectively connected to the hot and cold water units;

[0005] The fan unit is used to extract the cabin air of the living cabin. The cabin air enters the environmental control machine through the gas inlet of the environmental control machine, passes through the gas purification unit, dehumidification unit, fan unit, and temperature control unit in the environmental control machine in sequence, and is then transported to the living cabin through the gas return port of the environmental control machine. The cabin air is condensed and dehumidified when passing through the dehumidification unit, and is heated and heated when passing through the temperature control unit. The refrigerant water output by the hot and cold water unit provides cooling for the dehumidification unit, and the hot water output by the hot and cold water unit provides heat for the temperature control unit. Excess moisture contained in the cabin air is condensed into condensed water in the dehumidification unit and then discharged from the environmental control machine through the high-pressure side drain port.

[0006] The gas purification unit includes a harmful gas absorption tank, and a spray water assembly, a water collection device, and a multi-layer harmful gas absorbent box arranged in the harmful gas absorption tank;

[0007] The environmental control machine includes at least one gas purification unit, wherein the high-pressure water unit pressurizes the water from the water supply port, and the pressurized water is transported to the spray water assembly in the harmful gas absorption tank. The water sprayed by the spray water assembly performs a preliminary scrubbing on the gas in the cabin. The gas in the cabin washed by the spray water is then adsorbed by multiple layers of harmful gas absorbent boxes to remove harmful gases therein. The water collected by the water collection device is discharged from the environmental control machine through the high-pressure side drain port.

[0008] In order to prevent condensed water on the pipe wall from gathering at the lowest point of the gas transmission pipeline and causing water blockage, a capillary layer is formed on the inner wall of the gas transmission pipeline in the cabin connecting the living cabin, the gas purification unit, the fan unit, the dehumidification unit, and the temperature control unit.

[0009] Furthermore, the high-pressure water unit includes a filter, a high-pressure plunger pump, a safety valve, a pressure-stabilizing valve, a solenoid valve, and a one-way valve connected in sequence. The high-pressure plunger pump is driven by a drive motor, and the discharge end of the safety valve is connected to the high-pressure side drain port through a pipeline.

[0010] Furthermore, considering the convenience of replacing the multi-layer harmful gas absorbent box, switching between multiple gas purification units, and system maintenance, the environmental control machine includes at least two gas purification units arranged in parallel.

[0011] Furthermore, the upper side walls of the harmful gas absorption tank are respectively provided with a high-pressure gas inlet and a high-pressure water inlet, the lower side wall is provided with a high-pressure gas outlet, and the bottom is provided with a drain outlet. The high-pressure gas inlet is connected to the gas inlet of the environmental control machine through a pipeline, the high-pressure water inlet is connected to the high-pressure water unit through a pipeline, the high-pressure gas outlet is connected to the fan unit through a pipeline, and the drain outlet is connected to the high-pressure side drain outlet; a spray water assembly is connected to the high-pressure water inlet, the spray water assembly is arranged above the high-pressure gas inlet, and a water collection device is arranged below the spray water assembly.

[0012] Furthermore, in order to facilitate the replacement of the internal multi-layer harmful gas absorbent box, the harmful gas absorption tank adopts a lifting and swinging hatch cover quick opening mechanism. The lifting and swinging movements of the harmful gas absorption tank hatch cover are driven by a mechanical drive device, and the drive device is controlled by a remote control device, thereby reducing the operator's physical exertion.

[0013] Furthermore, the fan unit includes a fan tank, and a pressure-resistant fan and a pressure-resistant motor arranged in the fan tank, and the fan tank is provided with an air inlet and an air outlet; in order to further prevent the water contained in the gas in the cabin from condensing in the pipeline, the pressure-resistant fan is set to a high-speed pressure-resistant fan to reduce the flow time of the gas in the cabin in the pipeline, and in order to further increase the gas flow speed in the environmental control machine, the control unit controls the pressure in the fan tank to be the same as the pressure in the living cabin; the fan tank is also provided with a cabin penetration part for pipelines to pass through, and the pipelines include strong and weak current cables and cooling water pipelines, the strong and weak current cables provide power and control signals for the pressure-resistant motor, and the cooling water in the cooling water pipeline is used to cool the pressure-resistant motor, the cooling water is introduced by the water supply port, and the cooling water after absorbing heat is discharged from the environmental control machine through the low-pressure side drain port.

[0014] Furthermore, the pressure-resistant fan is fixed to the flange end cover of the fan tank by bolts, the pressure-resistant motor is arranged below the pressure-resistant fan, and the pressure-resistant motor and the pressure-resistant fan are transmission-connected; the inner diameter of the fan tank is 440-460 mm, the axis of the pressure-resistant fan and the axis of the fan tank are eccentric by 30-40 mm, preferably eccentric by 35 mm, and the air outlet of the pressure-resistant fan has a grooved end face sealing structure. After the pressure-resistant fan and the flange end cover are assembled, the air outlet of the pressure-resistant fan is connected to the air duct on the flange end cover and forms an effective seal; the cable and cooling water pipeline of the pressure-resistant motor are led out from the tail end face of the pressure-resistant motor, and the cable and cooling water pipeline of the pressure-resistant motor are connected to the external motor driver through the through-cabin part located on the flange end cover, and the motor driver is located in a normal pressure environment.

[0015] Furthermore, the dehumidification unit includes a condensing tank and a condensing heat exchanger located in the condensing tank, and the temperature control unit includes a heating tank and a heating heat exchanger located in the heating tank. Both the condensing heat exchanger and the heating heat exchanger are high-pressure resistant heat exchangers.

[0016] Furthermore, the high-pressure heat exchanger is a stainless steel wire tube heat exchanger, which includes an air inlet 43, an air outlet 44, a water inlet 45, a water outlet 46 and a stainless steel wire tube 47. Water flows inside the stainless steel wire tube, and the gas in the cabin flows on the shell side outside the stainless steel wire tube.

[0017] Furthermore, a temperature sensor and a humidity sensor are respectively provided at the gas inlet and the gas return port of the environmental control machine. The control unit adjusts the opening of the solenoid valve at the gas inlet and / or the gas return port of the environmental control machine according to the temperature and humidity information obtained by the temperature sensor and the humidity sensor.

[0018] Furthermore, the environmental control machine also includes a base, and the high-pressure water unit, the gas purification unit, the dehumidification unit, the temperature control unit, the fan unit and the control unit are all fixedly installed on the base, and a lifting hole is provided on the base to facilitate lifting.

[0019] The present invention also provides an environmental control system for an ultra-deep saturated living cabin, comprising a pressurized living cabin, an environmental control machine, and a hot and cold water unit, wherein the environmental control machine and the hot and cold water unit are both arranged outside the pressurized living cabin; the refrigerant water of the hot and cold water unit enters the dehumidification unit of the environmental control machine from the refrigerant water inlet of the environmental control machine, exchanges heat with the gas, and then returns to the hot and cold water unit through the refrigerant water return port of the environmental control machine; the hot water of the hot and cold water unit enters the temperature control unit of the environmental control machine from the hot water inlet of the environmental control machine, exchanges heat with the gas, and then returns to the hot and cold water unit through the hot water return port of the environmental control machine.

[0020] The technical solution of the present invention has the following advantages:

[0021] 1. The environmental control machine designed by the present invention sets the spray water component inside the harmful gas absorption tank to avoid condensation of gas flowing through the spray water during long-distance transportation in the pipeline. Excessive condensation accumulates inside the pipeline, resulting in a reduction in the gas transportation capacity of the pipeline.

[0022] 2. In order to avoid the precipitation of condensed water when the gas in the cabin is transported over long distances in the pipeline, the pressure-resistant fan is set to a high-speed pressure-resistant fan to reduce the residence time of the gas in the cabin in the environmental control machine. In order to further increase the flow rate of the gas, the pressure in the fan tank is controlled by the control unit to be the same as the pressure in the pressurized cabin.

[0023] 3. In order to prevent condensed water on the pipe wall from gathering at the lowest point of the pipeline and causing water blockage, a capillary layer is provided on the inner wall of the gas transmission pipeline.

[0024] 4. To control the large amount of heat generated by the high-speed pressure-resistant fan and prevent it from affecting the performance of the condenser, the environmental control unit designed in this invention separates the fan tank from the condenser tank. This separate arrangement simplifies the structure and makes installation and maintenance more convenient. In addition, a cooling water pipeline is installed in the fan tank to prevent heat accumulation in the fan tank, extending the service life of the high-speed pressure-resistant fan and pressure-resistant motor.

[0025] 5. The environmental control machine of the present invention is provided with independent high-pressure side drain outlet and low-pressure side drain outlet, so that the discharged water of different pressures does not affect each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the environmental control system of the ultra-deep saturation living cabin according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of an external environmental control unit for a super-deep saturation living cabin according to an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of the structure of a fan unit according to an embodiment of the present invention;

[0029] Figure 4 Schematic diagram of the structure of a high-pressure heat exchanger according to an embodiment of the present invention.

[0030] Among them, 1. Gas inlet; 2. Gas return; 3. Water supply port; 4. Low-pressure side drain port; 5. High-pressure side drain port; 6. Refrigerant water inlet; 7. Refrigerant water outlet; 8. Heat medium water inlet; 9. Heat medium water outlet; 10. Filter; 11. High-pressure plunger pump; 12. Safety valve; 13. Solenoid valve; 14. One-way valve; 20. Harmful gas absorption tank; 21. Spray water assembly; 22. Multi-layer harmful gas absorbent box; 30. Fan tank; 31. Pressure-resistant fan; 32. Pressure-resistant motor; 33. Air inlet; 34. Air outlet; 35. Cabin penetration parts; 36. Pipeline; 41. Condensation tank; 42. Heating tank; 43. Air inlet; 44. Air outlet; 45. Water inlet; 46. Water outlet; 47. Stainless steel wire pipe. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] like Figure 1-4 As shown, this embodiment provides an external environmental control unit for a super-deep saturation living cabin. The environmental control unit is arranged outside the pressurized living cabin and includes a high-pressure water unit, a gas purification unit, a dehumidification unit, a temperature control unit, a fan unit, and a control unit. The environmental control unit is provided with a water supply port 3, a gas inlet 1, a gas return port 2, a refrigerant water inlet 6, a refrigerant water outlet 7, a heat medium water inlet 8, a heat medium water outlet 9, a high-pressure side drain port 5, and a low-pressure side drain port 4. The gas inlet 1 of the environmental control unit is connected to the gas outlet pipe in the cabin of the living cabin through a solenoid valve, and the gas return port 2 of the environmental control unit is connected to the gas return pipe in the cabin of the living cabin through a solenoid valve. The refrigerant water inlet 6, refrigerant water outlet 7, heat medium water inlet 8, and heat medium water outlet 9 of the environmental control unit are respectively connected to the hot and cold water units.

[0033] The fan unit is used to extract the cabin air of the living cabin. The cabin air enters the environmental control machine through the gas inlet 1 of the environmental control machine, passes through the gas purification unit, dehumidification unit, fan unit, and temperature control unit in the environmental control machine in sequence, and is then transported to the living cabin through the gas return port 2 of the environmental control machine. The cabin air is condensed and dehumidified when passing through the dehumidification unit, and is heated and heated when passing through the temperature control unit. The refrigerant water output by the hot and cold water unit provides cooling for the dehumidification unit, and the hot water output by the hot and cold water unit provides heat for the temperature control unit. The excess moisture contained in the cabin air is condensed into condensed water in the dehumidification unit and then discharged from the environmental control machine through the high-pressure side drain port 5.

[0034] The gas purification unit includes a harmful gas absorption tank 20, and a spray water assembly 21, a water collection device (not shown in the figure), and a multi-layer harmful gas absorbent box 22 arranged in the harmful gas absorption tank 20;

[0035] The environmental control machine includes at least one gas purification unit. The high-pressure water unit pressurizes the water from the water supply port 3. The pressurized water is transported to the spray water assembly 21 in the harmful gas absorption tank 20. The water sprayed by the spray water assembly 21 performs a preliminary scrubbing on the gas in the cabin. The gas in the cabin washed by the spray water is then adsorbed by the multi-layer harmful gas absorbent box 22 to remove the harmful gas therein. The water collected by the water collection device is discharged from the environmental control machine through the high-pressure side drain port 5.

[0036] In order to prevent condensed water on the pipe wall from gathering at the lowest point of the gas transmission pipeline and causing water blockage, a capillary layer is formed on the inner wall of the gas transmission pipeline in the cabin connecting the living cabin, the gas purification unit, the fan unit, the dehumidification unit, and the temperature control unit.

[0037] Furthermore, the high-pressure water unit includes a filter 10, a high-pressure plunger pump 11, a safety valve 12, a pressure-stabilizing valve, a solenoid valve 13, and a one-way valve 14 connected in sequence. The high-pressure plunger pump 11 is driven by a driving motor, and the discharge end of the safety valve 12 is connected to the high-pressure side drain port 5 through a pipeline.

[0038] Furthermore, considering the convenience of replacing the multi-layer harmful gas absorbent box 22, switching between multiple gas purification units, and system maintenance, the environmental control machine includes at least two gas purification units arranged in parallel.

[0039] Furthermore, the upper side walls of the harmful gas absorption tank 20 are respectively provided with a high-pressure gas inlet and a high-pressure water inlet, the lower side wall is provided with a high-pressure gas outlet, and the bottom is provided with a drain outlet. The high-pressure gas inlet is connected to the gas inlet 1 of the environmental control machine through a pipeline, the high-pressure water inlet is connected to the high-pressure water unit through a pipeline, the high-pressure gas outlet is connected to the fan unit through a pipeline, and the drain outlet is connected to the high-pressure side drain outlet 5; the high-pressure water inlet is connected to a spray water assembly 21, the spray water assembly 21 is arranged above the high-pressure gas inlet, and a water collection device is provided below the spray water assembly 21.

[0040] Furthermore, in order to facilitate the replacement of the internal multi-layer harmful gas absorbent box 22, the harmful gas absorption tank 20 adopts a lifting and swinging hatch cover quick opening mechanism. The lifting and swinging movements of the hatch cover of the harmful gas absorption tank 20 are driven by a mechanical drive device, and the drive device is controlled by a remote control device, thereby reducing the operator's physical exertion.

[0041] Furthermore, the fan unit includes a fan tank 30, and a pressure-resistant fan 31 and a pressure-resistant motor 32 arranged in the fan tank 30, and the fan tank 30 is provided with an air inlet 33 and an air outlet 34; in order to further prevent the water contained in the cabin gas from condensing in the pipeline, the pressure-resistant fan 31 is set as a high-speed pressure-resistant fan to reduce the flow time of the cabin gas in the pipeline, and in order to further increase the flow speed of the cabin gas entering the environmental control machine, the control unit controls the pressure in the fan tank 30 to be the same as the pressure in the living cabin; the fan tank 30 is also provided with a cabin penetration part 35 for a pipeline 36 to pass through, and the pipeline 36 includes a strong and weak current cable and a cooling water pipeline. The strong and weak current cable provides power and control signals for the pressure-resistant motor 31, and the cooling water in the cooling water pipeline is used to cool the pressure-resistant motor 31. The cooling water is introduced by the water supply port 3, and the cooling water after absorbing heat is discharged from the environmental control machine through the low-pressure side drain port 4.

[0042] Furthermore, the pressure-resistant fan 31 is fixed to the flange end cover of the fan tank 30 by bolts, and the pressure-resistant motor 32 is arranged below the pressure-resistant fan 31, and the pressure-resistant motor 32 and the pressure-resistant fan 31 are transmission-connected; the inner diameter of the fan tank 30 is 440-460 mm, and the axis of the pressure-resistant fan 31 and the axis of the fan tank 30 are eccentric by 30-40 mm, preferably eccentric by 35 mm, and the air outlet of the pressure-resistant fan 31 has a grooved end face sealing structure. After the pressure-resistant fan 31 is assembled with the flange end cover, the air outlet of the pressure-resistant fan 31 is connected to the air duct on the flange end cover and forms an effective seal; the cable and cooling water pipeline of the pressure-resistant motor 32 are led out from the tail end face of the pressure-resistant motor 32, and the cable and cooling water pipeline of the pressure-resistant motor 32 are connected to the external motor driver through the through-cabin part 35 located on the flange end cover, and the motor driver is located in a normal pressure environment.

[0043] Furthermore, the dehumidification unit includes a condensing tank 41 and a condensing heat exchanger located in the condensing tank 41, and the temperature control unit includes a heating tank 42 and a heating heat exchanger located in the heating tank 42. Both the condensing heat exchanger and the heating heat exchanger are high-pressure heat exchangers.

[0044] Furthermore, the high-pressure heat exchanger is a stainless steel wire tube heat exchanger, which includes an air inlet 43, an air outlet 44, a water inlet 45, a water outlet 46 and a stainless steel wire tube 47. Water flows inside the stainless steel wire tube 47, and the gas in the cabin flows on the shell side outside the stainless steel wire tube 47.

[0045] Furthermore, a temperature sensor and a humidity sensor are respectively provided at the gas inlet 1 of the environmental control machine and the gas return port 2 of the environmental control machine. The control unit adjusts the opening of the solenoid valve at the gas inlet 1 and / or the gas return port 2 of the environmental control machine according to the temperature and humidity information obtained by the temperature sensor and the humidity sensor.

[0046] Furthermore, the environmental control machine also includes a base, and the high-pressure water unit, the gas purification unit, the dehumidification unit, the temperature control unit, the fan unit and the control unit are all fixedly installed on the base, and a lifting hole is provided on the base to facilitate lifting.

[0047] The present invention also provides an environmental control system for an ultra-deep saturated living cabin, comprising a pressurized living cabin, an environmental control machine, and a hot and cold water unit, wherein the environmental control machine and the hot and cold water unit are both arranged outside the pressurized living cabin; the refrigerant water of the hot and cold water unit enters the dehumidification unit of the environmental control machine from the refrigerant water inlet 6 of the environmental control machine, exchanges heat with the gas, and then returns to the hot and cold water unit through the refrigerant water return port 7 of the environmental control machine; the hot water of the hot and cold water unit enters the temperature control unit of the environmental control machine from the hot water inlet 8 of the environmental control machine, exchanges heat with the gas, and then returns to the hot and cold water unit through the hot water return port 9 of the environmental control machine.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical solutions described in the above embodiments, or to make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external environmental control unit for a super-deep saturation living cabin, characterized in that: The environmental control machine is arranged outside the pressurized living cabin, and includes a high-pressure water unit, a gas purification unit, a dehumidification unit, a temperature control unit, a fan unit, and a control unit; the environmental control machine is provided with a water supply port, a gas inlet, a gas return port, a refrigerant water inlet, a refrigerant water outlet, a heat medium water inlet, a heat medium water outlet, a high-pressure side drain port, and a low-pressure side drain port; the gas inlet of the environmental control machine is connected to the gas outlet pipe in the cabin of the living cabin through a solenoid valve, and the gas return port of the environmental control machine is connected to the gas return pipe in the cabin of the living cabin through a solenoid valve; the refrigerant water inlet, refrigerant water outlet, heat medium water inlet, and heat medium water outlet of the environmental control machine are respectively connected to the hot and cold water units; The fan unit includes a fan tank and a pressure-resistant fan arranged in the fan tank, and the dehumidification unit includes a condensation tank and a condensation heat exchanger located in the condensation tank, and the fan tank and the condensation tank are arranged separately; The fan unit extracts air from the living cabin, and the air in the cabin enters the environmental control machine through the gas inlet of the environmental control machine, passes through the gas purification unit, dehumidification unit, fan unit, and temperature control unit in the environmental control machine in sequence, and is then transported to the living cabin through the gas return port of the environmental control machine. The air in the cabin is condensed and dehumidified when passing through the dehumidification unit, and is heated and heated when passing through the temperature control unit. The refrigerant water output by the hot and cold water unit provides cooling for the dehumidification unit, and the hot and cold water output by the hot and cold water unit provides heat for the temperature control unit. Excess moisture contained in the air in the cabin is condensed into condensed water in the dehumidification unit and then discharged from the environmental control machine through the high-pressure side drain port. The gas purification unit includes a harmful gas absorption tank, and a spray water assembly, a water collection device, and a multi-layer harmful gas absorbent box arranged in the harmful gas absorption tank; The environmental control machine includes at least one gas purification unit, wherein the high-pressure water unit pressurizes the water from the water supply port, and the pressurized water is transported to the spray water assembly in the harmful gas absorption tank. The water sprayed by the spray water assembly performs preliminary scrubbing on the gas in the cabin, and the water collected by the water collection device is discharged from the environmental control machine through the high-pressure side drain port; A capillary layer is formed on the inner wall of the cabin gas delivery pipeline connecting the living cabin, the gas purification unit, the fan unit, the dehumidification unit, and the temperature control unit.

2. The external environmental control unit for a super-deep saturation living cabin according to claim 1, characterized in that: The high-pressure water unit includes a filter, a high-pressure plunger pump, a safety valve, a pressure-stabilizing valve, a solenoid valve, and a one-way valve connected in sequence. The high-pressure plunger pump is driven by a driving motor, and the discharge end of the safety valve is connected to the high-pressure side drain port through a pipeline.

3. The external environmental control unit for a super-deep saturation living cabin according to claim 1, characterized in that: The environmental control machine includes at least two gas purification units arranged in parallel; the upper side walls of the harmful gas absorption tank are respectively provided with a high-pressure gas inlet and a high-pressure water inlet, the lower side wall is provided with a high-pressure gas outlet, and the bottom is provided with a drain outlet. The high-pressure gas inlet is connected to the gas inlet of the environmental control machine through a pipeline, the high-pressure water inlet is connected to the high-pressure water unit through a pipeline, the high-pressure gas outlet is connected to the fan unit through a pipeline, and the drain outlet is connected to the high-pressure side drain outlet; the high-pressure water inlet is connected to a spray water assembly, the spray water assembly is arranged above the high-pressure gas inlet, and a water collection device is provided below the spray water assembly.

4. The external environmental control unit for a super-deep saturation living cabin according to claim 3, characterized in that: The harmful gas absorption tank adopts a lifting and swinging hatch cover quick opening mechanism. The lifting and swinging movements of the hatch cover of the harmful gas absorption tank are driven by a mechanical driving device, and the driving device is controlled by a remote control device.

5. The external environmental control unit for a super-deep saturation living cabin according to claim 1, characterized in that: The fan unit also includes a pressure-resistant motor arranged in the fan tank, and the pressure in the fan tank is the same as the pressure in the living cabin; the fan tank is provided with a cabin penetration part for the passage of cables and cooling water pipelines, the cables provide power and control signals for the pressure-resistant motor, and the cooling water in the cooling water pipeline is used to cool the pressure-resistant motor. The cooling water is introduced through the water supply port, and the cooling water after absorbing heat is discharged from the environmental control machine through the low-pressure side drain port.

6. The external environmental control unit for a super-deep saturation living cabin according to claim 5, characterized in that: The pressure-resistant fan is fixed to the flange end cover of the fan tank by bolts, the pressure-resistant motor is arranged below the pressure-resistant fan, and the pressure-resistant motor and the pressure-resistant fan are transmission-connected; the axis of the pressure-resistant fan and the axis of the fan tank are eccentrically arranged, and the air outlet of the pressure-resistant fan has a grooved end face sealing structure; the cable and cooling water pipeline of the pressure-resistant motor are led out from the tail end face of the pressure-resistant motor, and the cable and cooling water pipeline of the pressure-resistant motor are connected to the external motor driver through the through-cabin part located on the flange end cover.

7. The external environmental control unit for a super-deep saturation living cabin according to claim 1, characterized in that: The temperature control unit includes a heating tank and a heating heat exchanger located inside the heating tank. The condensing heat exchanger and the heating heat exchanger are both high-pressure heat exchangers. The high-pressure heat exchanger is a stainless steel wire tube heat exchanger. Water flows inside the stainless steel wire tube, and the gas in the cabin flows on the shell side outside the stainless steel wire tube.

8. The external environmental control unit for a super-deep saturation living cabin according to claim 7, characterized in that: The gas inlet and the gas return port of the environmental control machine are respectively provided with a temperature sensor and a humidity sensor. The control unit adjusts the opening of the solenoid valve at the gas inlet and / or the gas return port of the environmental control machine according to the temperature and humidity information obtained by the temperature sensor and the humidity sensor.

9. The external environmental control unit for a super-deep saturation living cabin according to any one of claims 1 to 8, characterized in that: The environmental control machine also includes a base, and the high-pressure water unit, the gas purification unit, the dehumidification unit, the temperature control unit, the fan unit and the control unit are all fixedly installed on the base, and the base is provided with a hanging hole.

10. An environmental control system for a super-deep saturation living cabin, characterized in that: The invention comprises a pressurized living cabin, an environmental control machine and a hot and cold water unit, wherein the environmental control system adopts the environmental control machine according to any one of claims 1 to 9, and the environmental control machine and the hot and cold water unit are both arranged outside the pressurized living cabin; the refrigerant water of the hot and cold water unit enters the dehumidification unit of the environmental control machine from the refrigerant water inlet of the environmental control machine, exchanges heat with the gas, and then returns to the hot and cold water unit through the refrigerant water return port of the environmental control machine; the hot water of the hot and cold water unit enters the temperature control unit of the environmental control machine from the hot water inlet of the environmental control machine, exchanges heat with the gas, and then returns to the hot and cold water unit through the hot water return port of the environmental control machine.

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