A pressure pipe pressure-resistant fan for a saturation diving living chamber environmental control system

Abstract

The present invention provides a pressure-resistant blower for a pressure pipe used in an environmental control system for a saturation diving habitation chamber. The pressure-resistant blower is disposed within a vertical tank body, and an end cap is provided with an air outlet and a through-hole for the inlet and outlet of a cooling water pipe. The pressure-resistant blower comprises a vortex blower and a motor. The motor comprises a motor body and a cooling ring. The cooling ring comprises an upper straight pipe, an upper curved pipe, a circular ring pipe, a lower curved pipe, and a lower straight pipe affixed to the surface of the motor body. Cooling water enters the motor housing through the upper straight pipe, flows through the upper parallel section of the upper straight pipe and the upper curved pipes on both sides for heat exchange, then flows through the circular ring pipe into the lower straight pipe, exchanges heat through the lower parallel section of the lower straight pipe and the lower curved pipes on both sides, and then flows out of the motor housing through the lower straight pipe. The present invention improves the design of the motor's cooling pipe and adopts a cooling ring structure affixed to the surface of the motor body to optimize the flow path and heat exchange effect of the cooling water, thereby enabling the pressure-resistant blower to efficiently dissipate heat in high-pressure environments.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary equipment related to saturation diving operations, and relates to an environmental control system for an ultra-deep saturation chamber, in particular to a pressure pipe pressure-resistant fan for an environmental control system of a saturation diving living chamber. Background Art

[0002] Deep saturation diving involves prolonged underwater exposure to depths exceeding 120 meters (or even 300-500 meters). Divers first spend an extended period of time in a hyperbaric saturation chamber to acclimate to the high-pressure underwater environment before returning to deep water for work, which can last up to a month. The atmosphere within these chambers typically consists of a mixture of helium, oxygen, a small amount of carbon dioxide, water, and nitrogen. The pressure can exceed 12 standard atmospheres (atmospheres), potentially reaching 30-50 standard atmospheres, depending on the situation. While acclimatizing and resting, divers must ingest oxygen and exhale carbon dioxide to maintain their health. The environmental control system, which regulates the chamber's atmosphere, is a crucial component of the chamber and ensures optimal control of the atmosphere. The pressure-resistant fan is an important component of the environmental control machine. The air inlet and outlet pipes of the environmental control machine are connected to the two ends of the pressurized cabin, thus forming a loop between the air duct composed of pipes and pressure-resistant cavity components on the environmental control machine and the pressurized cabin. The function of the fan is to drive the gas in the pressurized cabin to circulate in the loop, providing conditions for removing harmful gases and controlling temperature and humidity in the living cabin. The fan needs to adapt to the environmental background pressure of 10MPa.

[0003] However, in the prior art, the cooling method of the fan is often relatively simple, usually using traditional air cooling or water cooling systems. These systems can work effectively in low-pressure or normal-pressure environments, but in high-pressure environments, the heat dissipation requirements of the fan increase significantly. This is because in a high-pressure environment, the fan needs to overcome a larger pressure difference, and the motor load increases, thereby generating more heat. At the same time, the density of air or other gases in a high-pressure environment increases, which reduces the efficiency of the traditional cooling system and makes it impossible to dissipate heat in time, causing the fan to easily overheat and affecting its performance and life. In addition, the traditional cooling system has a complex structure and is difficult to maintain, and cannot achieve efficient and stable cooling effects in a high-pressure environment. Therefore, there is a need for an improved cooling system that can efficiently cool pressure-resistant fans in a high-pressure environment to ensure their long-term stable operation. Summary of the Invention

[0004] In response to the above-mentioned problems existing in the prior art, the present invention provides a pressure-resistant fan for a pressure pipe used in a saturation diving living chamber environmental control system. By improving the cooling pipe design of the motor and adopting a cooling ring structure attached to the surface of the motor body, the flow path of the cooling water and the heat exchange effect are optimized, so that the fan can dissipate heat efficiently in a high-pressure environment, thereby ensuring stable operation and long life of the fan.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A pressure-resistant fan for a pressure pipe of a saturation diving living cabin environment control system, wherein the pressure-resistant fan is arranged in a vertical tank body, the lower end of the tank body is a closed end, and the upper end is an open end; the open end of the tank body is detachably fixed with an end cover for closing the upper end opening of the tank body, an air inlet is opened on one side of the tank body, an air outlet is opened on the end cover, and a through hole for the inlet and outlet of a cooling water pipe; the pressure-resistant fan comprises a vortex fan and a motor, the motor comprises a motor body and a cooling ring, and the cooling ring comprises The upper straight tube, upper curved tube, circular ring tube, lower curved tube and lower straight tube are attached to the surface of the motor body. The upper curved tube is located on both sides of the upper straight tube and extends to the middle of the motor body. The lower curved tube is located on both sides of the lower straight tube and extends to the middle of the motor body. The cooling water enters the motor casing through the upper straight tube, flows through the upper parallel section of the upper straight tube and the upper curved tubes on both sides for heat exchange, and then flows into the lower straight tube through the circular ring tube, exchanges heat through the lower parallel section of the lower straight tube and the lower curved tubes on both sides, and then flows out of the motor casing through the lower straight tube.

[0007] Preferably, the cooling water pipe includes an inlet pipe and an outlet pipe, the inlet pipe is connected to the upper straight pipe, the outlet pipe is connected to the lower straight pipe, a bypass pipe is provided between the inlet pipe and the outlet pipe on one side of the motor, and an electric ball valve is provided on the bypass pipe.

[0008] Preferably, a plurality of temperature sensors are provided on the outer surface of the housing of the motor, and the opening of the electric ball valve is adjusted based on an average value of the plurality of temperature sensors.

[0009] Preferably, the water inlet pipe and the upper straight pipe, and the water outlet pipe and the lower straight pipe are all detachably connected, the water inlet pipe and the water outlet pipe are made of metal hoses, and the cooling ring is detachably mounted on the motor body.

[0010] Preferably, protrusions are provided on the tube walls of the upper parallel section of the upper straight tube and the lower parallel section of the lower straight tube, the protrusions are evenly distributed, and the interiors of the upper curved tube and the lower curved tube are smooth.

[0011] Preferably, the diameter of the upper parallel section of the upper straight pipe at the position corresponding to the outflow outlet of the upper curved pipe gradually decreases and then increases to guide the cooling water of the upper curved pipe; the diameter of the lower parallel section of the lower straight pipe at the position corresponding to the outflow outlet of the lower curved pipe gradually decreases and then increases to guide the cooling water of the lower curved pipe.

[0012] Preferably, a support frame is fixedly provided on the outer surface of the motor housing, and the support frame is provided with a first card slot and a second card slot, and the first card slot and the second card slot are used to fix the water inlet pipe and the water outlet pipe respectively.

[0013] Preferably, the end cover is provided with a plurality of connection holes for fixedly connecting the pressure-resistant fan; all the connection holes are located on the same circumference, and each connection hole is inserted with a connection bolt for fixing the pressure-resistant fan; the center line of the circle formed by all the connection holes is eccentrically arranged with the central axis of the tank body.

[0014] Preferably, the pressure-resistant blower is suitable for the following medium environmental conditions: the ambient humidity range is 50% RH to 99% RH; the working environment pressure range is 0 to 10 MPa; the working environment medium is a mixture of helium, nitrogen and oxygen, wherein the oxygen partial pressure is 20 to 45 kPa and the nitrogen partial pressure is 80 kPa; the working environment medium temperature range is -5°C to +40°C; the working medium density range corresponds to 1.2 g / L to 19 g / L.

[0015] Preferably, the rated speed of the vortex blower is 3000 r / min, and the speed range is 500 r / min to 4000 r / min.

[0016] Compared with the prior art, the present invention optimizes the flow path and heat exchange effect of the cooling water by improving the design of the cooling pipeline of the motor and adopting a cooling ring structure that is attached to the surface of the motor body. The cooling ring includes an upper straight pipe, an upper curved pipe, a circular ring pipe, a lower curved pipe and a lower straight pipe that are attached to the surface of the motor body. The cooling water can fully cover the various heat source parts of the motor, significantly improving the overall heat dissipation efficiency. In addition, a plurality of temperature sensors are provided on the outer surface of the motor housing. By monitoring the temperature condition of the motor in real time and adjusting the opening of the electric ball valve based on the average value of the temperature sensor, the flow rate of the cooling water is accurately controlled to achieve dynamic temperature control, thereby further improving the cooling effect and ensuring that the pressure-resistant blower can maintain the best operating state under various working conditions. This cooling system can not only dissipate heat efficiently in a high-pressure environment, prevent the motor from overheating, and extend the service life of the equipment, but also has the characteristics of easy installation and maintenance. The cooling ring adopts a detachable design. The connection between the water inlet pipe and the water outlet pipe and the cooling ring is detachable and adopts a metal hose, which improves the flexibility and durability of the connection. The smooth design of the upper and lower curved pipes inside the cooling ring and the uniform protrusions on the upper and lower straight pipes further enhance the heat exchange effect of the cooling water, ensuring the long-term stable operation of the pressure-resistant blower in a high-pressure environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1 It is a schematic diagram of the installation structure of the pressure-resistant fan in this application.

[0019] Figure 2 This is a front view of the motor cooling structure of the pressure-resistant fan in this application.

[0020] Figure 3 It is a left view of the motor cooling structure of the pressure-resistant fan in this application.

[0021] Figure 4 This is a right view of the motor cooling structure of the pressure-resistant fan in this application.

[0022] Figure 5 It is a top view of the end cover connected to the pressure-resistant blower in this application.

[0023] Figure markings: 1-pressure-resistant fan; 2-tank body; 3-end cover; 4-air inlet; 5-air outlet; 6-through hole; 7-vortex fan; 8-motor; 9-cooling ring; 10-upper straight pipe; 11-upper curved pipe; 12-circular ring; 13-lower curved pipe; 14-lower straight pipe; 15-upper parallel section; 16-lower parallel section; 17-water inlet pipe; 18-water outlet pipe; 19-bypass pipe; 20-electric ball valve; 21-support frame; 22-first slot; 23-second slot; 24-connecting hole; 25-connecting bolt. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element, or one or more elements can be interposed therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more elements can be interposed therebetween. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly specifying the number of technical features indicated. Therefore, unless otherwise specified, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; "plurality" means two or more. The term "comprising" and any variations thereof are intended to be non-exclusive, and one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0025] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0026] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 1-5 As shown, this embodiment discloses a pressure-resistant blower 1 for a pressure pipe in a saturation diving habitation chamber environmental control system. The blower 1 is housed within a vertical tank 2. The blower tank assembly exposes the blower 1 to an environment with the same pressure as the saturation chamber, thereby ensuring its normal operation. The blower 1 can accommodate very high ambient pressures. The design of the tank 2 helps provide stable structural support, ensuring the normal operation of the blower 1 in high-pressure environments.

[0028] The lower end of the tank body 2 is a closed end, and the upper end is an open end; the open end of the tank body 2 is detachably fixed with an end cover 3 for closing the upper end opening of the tank body 2, an air inlet 4 is provided on one side of the tank body 2, an air outlet 5 is provided on the end cover 3, and a through hole 6 for the entry and exit of the cooling water pipe is provided. These designs provide convenience for installation and maintenance, and the inlet and outlet of the cooling system enable the cooling water to circulate efficiently within the system.

[0029] The pressure-resistant blower 1 includes a vortex blower 7 and a motor 8. The vortex blower 7 is responsible for providing a strong airflow to ensure the circulation and heat exchange of the gas in the cabin. The motor 8, as the core power source, has a particularly critical cooling performance. The motor 8 includes a motor body and a cooling ring 9. The cooling ring 9 includes an upper straight pipe 10, an upper curved pipe 11, an annular pipe 12, a lower curved pipe 13, and a lower straight pipe 14 attached to the surface of the motor body. The upper curved pipe 11 is located on both sides of the upper straight pipe 10 and extends to the middle of the motor body. The lower curved pipe 13 is located on both sides of the lower straight pipe 14 and extends to the middle of the motor body. Cooling water enters the housing of the motor 8 through the upper straight pipe 10, flows through the upper parallel section 15 of the upper straight pipe 10 and the upper curved pipes 11 on both sides for heat exchange, then flows into the lower straight pipe 14 through the annular pipe 12, exchanges heat through the lower parallel section 16 of the lower straight pipe 14 and the lower curved pipes 13 on both sides, and then flows out of the housing of the motor 8 through the lower straight pipe 14. The cooling ring 9 is rationally arranged with the upper straight pipe 10, the upper curved pipe 11, the annular pipe 12, the lower curved pipe 13 and the lower straight pipe 14, so that the cooling water can fully cover the surface of the motor body. In particular, in addition to the upper parallel section 15 of the upper straight pipe 10 and the lower parallel section 16 of the lower straight pipe 14, efficient heat exchange is achieved through the upper curved pipe 11 and the lower curved pipe 13 on both sides, and finally flows out through the lower straight pipe 14 to complete the entire cooling cycle. This design not only improves the cooling effect, but also ensures the long-term stable operation of the motor 8 under high-pressure environment.

[0030] The cooling water pipe includes an inlet pipe 17 and an outlet pipe 18. The inlet pipe 17 is connected to the upper straight pipe 10, and the outlet pipe 18 is connected to the lower straight pipe 14. A bypass pipe 19 is provided between the inlet pipe 17 and the outlet pipe 18 on one side of the motor 8, and an electric ball valve 20 is provided on the bypass pipe 19. The bypass pipe 19 is designed to regulate the flow of water entering the cooling ring 9. When the heat dissipation demand is not high, the flow entering the cooling ring 9 can be reduced, which is more energy-efficient. A plurality of temperature sensors are provided on the outer surface of the housing of the motor 8. These temperature sensors can monitor the temperature of the motor 8 in real time, and the opening of the electric ball valve 20 can be adjusted based on the average value of the plurality of temperature sensors. The role of the temperature sensor is to provide accurate temperature monitoring data, so that the system can automatically adjust the flow of cooling water according to the actual heat dissipation demand, thereby maximizing energy efficiency and energy saving effects while ensuring that the motor 8 does not overheat. A pressure sensor is also installed within the tank 2 of the pressure-resistant blower 1. This sensor monitors pressure changes within the tank in real time and initially adjusts the opening of the electric ball valve 20 based on these pressure changes. After a predetermined period of time, the opening of the electric ball valve 20 is adjusted based on the data monitored by the temperature sensor to ensure that the motor operates within a suitable temperature range. The pressure sensor can quickly respond to pressure changes within the tank, increasing the cooling water flow in advance to cope with potential temperature increases. This proactive adjustment method effectively prevents overheating. For example, as the working environment pressure increases during submergence, this adjustment method can be used to increase the cooling water flow in advance.

[0031] Furthermore, the water inlet pipe 17 and the upper straight pipe 10, and the water outlet pipe 18 and the lower straight pipe 14 are all detachably connected. The water inlet pipe 17 and the water outlet pipe 18 are metal hoses, and the cooling ring 9 is detachably mounted on the motor 8 body. The detachable connection design facilitates installation and maintenance, allowing these pipes and the cooling ring 9 to be easily removed and reinstalled when needed, improving the maintenance efficiency and service life of the system. The metal hoses provide greater flexibility and durability, adapting to different installation conditions and environmental changes, ensuring that the system maintains good connection performance and reliability even in high-pressure environments. Considering the long length and bends of the curved pipes, which have high resistance, to balance the flow resistance between the parallel sections and the curved pipes, the upper parallel section 15 of the upper straight pipe 10 and the lower parallel section 16 of the lower straight pipe 14 are provided with protrusions on the pipe walls. These protrusions are evenly distributed, and the interiors of the upper curved pipe 11 and the lower curved pipe 13 are smooth, ensuring that the resistance of each branch pipe is close, and thus the flow rate is close. In addition, these protrusions can enhance fluid disturbance and improve heat exchange efficiency.

[0032] The diameter of the upper parallel section 15 of the upper straight tube 10, corresponding to the outlet of the upper curved tube 11, gradually decreases and then increases, guiding the cooling water in the upper curved tube 11. The diameter of the lower parallel section 16 of the lower straight tube 14, corresponding to the outlet of the lower curved tube 13, gradually decreases and then increases, guiding the cooling water in the lower curved tube 13. The reduced diameter design increases the flow rate. According to Bernoulli's principle, the greater the flow rate, the lower the pressure. The pressure decreases at the outlets of the upper curved tube 11 and the lower curved tube 13. This pressure change can guide the cooling water in the upper curved tube 11 and the lower curved tube 13, ensuring the effective flow of the cooling water in the curved tubes, avoiding the formation of vortices and flow dead spots at the curved tubes, and improving the cooling performance and working efficiency of the system.

[0033] Furthermore, a support frame 21 is fixedly mounted on the outer surface of the motor 8 housing. This support frame 21 is provided with a first slot 22 and a second slot 23, which are used to secure the water inlet pipe 17 and the water outlet pipe 18, respectively. Due to the high wind pressure within the tank 2, the water inlet pipe 17 and the water outlet pipe 18 are metal hoses, which are prone to shaking and colliding, increasing noise and reducing the service life of the hoses. The support frame 21 secures the water inlet pipe 17 and the water outlet pipe 18 via the two slots 22 and 23, effectively reducing shaking of the hoses and noise generated during operation, thereby improving the stability and quietness of the system.

[0034] The pressure-resistant fan tank assembly for the environmental control system of the ultra-deep saturation tank includes a tank body 2, which can be made of 6061 aluminum alloy or stainless steel; the weight range of the tank body 2 is 1650kg to 1850kg, the outer diameter range of the tank body 2 is 800mm to 900mm, and the height range of the tank body 2 is 1400mm to 1500mm. As a preferred embodiment, the weight of the tank body 2 in this application can be selected to be 1750kg; the outer diameter is 855mm, and the height is 1440mm. The end cover 3 is provided with a plurality of connection holes 24 for fixing the pressure-resistant fan 1. All the connection holes 24 are located on the same circumference, and each connection hole 24 is inserted with a connection bolt 25 for fixing the pressure-resistant fan 1; the number of the connection holes 24 and the connection bolt 25 in this application can be four. The center line of the circle formed by all the connection holes 24 is eccentric to the central axis of the tank body 2. Specifically, the eccentric distance between the center line of the circle formed by all the connecting holes 24 and the central axis of the tank body 2 is 30 mm to 40 mm, preferably 35 mm.

[0035] Pressure-resistant blower 1 is suitable for the following medium environmental conditions: the ambient humidity range is 50% RH to 99% RH, and it can operate normally in high humidity environments, ensuring the reliability and stability of the system; the working environment pressure range is 0 to 10MPa, and it is designed to adapt to a wide pressure range from normal pressure to high pressure, ensuring normal operation under various working conditions; the working environment medium is a mixture of helium, nitrogen, and oxygen, where the oxygen partial pressure is 20 to 45kPa and the nitrogen partial pressure is 80kPa. These parameters ensure that the blower can operate efficiently in specific gas mixtures and provide good ventilation and air exchange effects; the working environment medium temperature range is -5℃ to +40℃, and the design takes into account a wider temperature range to ensure stable operation under various climatic conditions; the working medium density range corresponds to 1.2g / L to 19g / L, adapting to media of different densities to ensure efficient operation under different pressure and temperature conditions. The rated speed of the vortex fan 7 is 3000r / min, and the speed range is 500r / min to 4000r / min. This design ensures that the fan can flexibly adjust the speed under different working conditions, provide the best ventilation effect, and ensure the efficient and stable operation of the system; the rated flow of the pressure-resistant fan 1 is ≥240m 3 / h, the design can provide strong air flow to ensure efficient ventilation in the environmental control system of the saturation diving living chamber. The fan shaft power is ≮13kW, and the fan can operate stably under high power conditions, providing sufficient power to maintain the normal operation of the system. The noise level under normal pressure standard conditions is ≯65dB(A), ensuring that the fan maintains low noise during operation, providing a quiet working and living environment for divers. The mean time between failures (MTBF) is ≥10,000 hours, and the fan has high reliability and long life, which can reduce maintenance frequency and cost. The fan is designed to withstand long-term uninterrupted operation, ensuring stable and reliable service under extreme conditions. These technical parameters together ensure the efficient, stable and reliable operation of the pressure-resistant fan 1 under various operating conditions.

[0036] In summary, the present invention provides a pressure-resistant blower 1 for a saturation diving habitation chamber environmental control system. Through a series of innovative designs and technical optimizations, the system's cooling efficiency and overall performance are significantly improved. By employing a cooling ring 9 bonded to the surface of the motor body, the pressure-resistant blower 1 optimizes the cooling water flow path and heat exchange efficiency, allowing the cooling water to fully cover all heat sources in the motor, significantly improving overall heat dissipation efficiency. Multiple temperature sensors are provided on the outer surface of the motor 8. These sensors provide real-time monitoring of the motor's temperature and dynamically control the cooling water flow rate by adjusting the opening of the electric ball valve 20, effectively preventing motor overheating. This design not only ensures efficient heat dissipation and long-term stable operation of the motor under high-pressure conditions, but also reduces energy consumption when high heat dissipation is not required, thereby improving the system's energy efficiency. Furthermore, the use of detachable connections and metal hoses improves the system's ease of installation and maintenance, as well as its flexibility. The smooth internal bend and evenly distributed protrusions further enhance the cooling water flow and heat exchange efficiency. Through these innovative designs, the present invention not only improves cooling performance and operational stability, but also provides efficient and reliable technical guarantees. It can adapt to the harsh environment of high-pressure saturation diving operations and provides important support for the safety of divers and the reliability of equipment.

[0037] 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. A pressure pipe pressure-resistant fan for a saturation diving living chamber environmental control system, characterized in that: The pressure-resistant fan (1) is arranged in a vertical tank body (2), the lower end of the tank body (2) is a closed end, and the upper end is an open end; the open end of the tank body (2) is detachably fixed with an end cover (3) for closing the upper end opening of the tank body (2); an air inlet (4) is provided on one side of the tank body (2), and an air outlet (5) and a through hole (6) for the inlet and outlet of a cooling water pipe are provided on the end cover (3); the pressure-resistant fan (1) includes a vortex fan (7) and a motor (8), the motor (8) includes a motor body and a cooling ring (9), and the cooling ring (9) includes The invention comprises an upper straight tube (10), an upper curved tube (11), an annular tube (12), a lower curved tube (13) and a lower straight tube (14) attached to the surface of the motor body, wherein the upper curved tube (11) is located on both sides of the upper straight tube (10) and extends to the middle of the motor body, and the lower curved tube (13) is located on both sides of the lower straight tube (14) and extends to the middle of the motor body. The cooling water enters the housing of the motor (8) through the upper straight tube (10), flows through the upper parallel section (15) of the upper straight tube (10) and the upper curved tubes (11) on both sides for heat exchange, and then flows into the lower straight tube (14) through the annular tube (12). ), passes through the lower parallel section (16) of the lower straight tube (14) and the lower curved tubes (13) on both sides for heat exchange, and then flows out of the housing of the motor (8) through the lower straight tube (14); in order to balance the flow resistance between the parallel sections and the curved tubes, the upper parallel section (15) of the upper straight tube (10) and the lower parallel section (16) of the lower straight tube (14) are provided with protrusions on the tube wall, and the protrusions are evenly distributed. The interiors of the upper curved tube (11) and the lower curved tube (13) are smooth, ensuring that the resistance of each branch is close, thereby close to the flow rate; the upper parallel section (15) of the upper straight tube (10) and the upper curved tube (13) are connected to each other. The pipe diameter at the position corresponding to the outflow outlet of the curved pipe (11) gradually decreases and then increases, thereby guiding the cooling water of the upper curved pipe (11); the pipe diameter at the position corresponding to the outflow outlet of the lower curved pipe (13) of the lower parallel section (16) of the lower straight pipe (14) gradually decreases and then increases, thereby guiding the cooling water of the lower curved pipe (13). The pressure at the outflow outlets of the upper curved pipe (11) and the lower curved pipe (13) decreases. This pressure change can eject the cooling water in the upper curved pipe (11) and the lower curved pipe (13), thereby ensuring the effective flow of the cooling water in the curved pipe and avoiding the formation of vortices and flow dead corners at the curved pipe.

2. The pressure pipe pressure-resistant blower for the saturation diving living chamber environment control system according to claim 1, characterized in that: The cooling water pipe comprises an inlet pipe (17) and an outlet pipe (18), wherein the inlet pipe (17) is connected to the upper straight pipe (10), and the outlet pipe (18) is connected to the lower straight pipe (14). A bypass pipe (19) is provided between the inlet pipe (17) and the outlet pipe (18) on one side of the motor (8), and an electric ball valve (20) is provided on the bypass pipe (19).

3. The pressure pipe pressure-resistant blower for the saturation diving living chamber environment control system according to claim 2, characterized in that: The outer surface of the housing of the motor (8) is provided with a plurality of temperature sensors, and the opening of the electric ball valve (20) is adjusted based on an average value of the plurality of temperature sensors.

4. The pressure pipe pressure-resistant blower for a saturation diving living chamber environment control system according to claim 3, characterized in that: The water inlet pipe (17) and the upper straight pipe (10), and the water outlet pipe (18) and the lower straight pipe (14) are all detachably connected. The water inlet pipe (17) and the water outlet pipe (18) are made of metal hoses. The cooling ring (9) is detachably mounted on the motor body.

5. The pressure pipe pressure-resistant blower for the saturation diving living chamber environment control system according to claim 4, characterized in that: A support frame (21) is also fixedly provided on the outer surface of the housing of the motor (8), and the support frame (21) is provided with a first card slot (22) and a second card slot (23), and the first card slot (22) and the second card slot (23) are respectively used to fix the water inlet pipe (17) and the water outlet pipe (18).

6. The pressure pipe pressure-resistant blower for a saturation diving living chamber environment control system according to claim 1, characterized in that: The end cover (3) is provided with a plurality of connection holes (24) for fixedly connecting the pressure-resistant fan (1); all the connection holes (24) are located on the same circumference, and a connection bolt (25) for fixedly connecting the pressure-resistant fan (1) is inserted into each connection hole (24); the center line of the circle formed by all the connection holes (24) is eccentrically arranged with respect to the central axis of the tank body (2).

7. The pressure pipe pressure-resistant blower for a saturation diving living chamber environment control system according to claim 1, characterized in that: The pressure-resistant blower (1) is suitable for the following medium environment conditions: the ambient humidity range is 50% RH to 99% RH; the working environment pressure range is 0 to 10 MPa; the working environment medium is a mixed gas of helium, nitrogen, and oxygen, wherein the oxygen partial pressure is 20 to 45 kPa and the nitrogen partial pressure is 80 kPa; the working environment medium temperature range is -5°C to +40°C; and the working medium density range corresponds to 1.2 g / L to 19 g / L.

8. The pressure pipe pressure-resistant blower for a saturation diving living chamber environment control system according to claim 7, characterized in that: The rated speed of the vortex fan (7) is 3000 r / min, and the speed range is 500 r / min to 4000 r / min.

Images