High-pressure-resistant ultra-silence temperature and humidity control system

Abstract

The invention provides a high-pressure-resistant ultra-silence temperature and humidity control system, and relates to the technical field of saturated submersible pressure chamber temperature and humidity environment control, the high-pressure-resistant ultra-silence temperature and humidity control system comprises a pressure chamber, a second heat exchanger and a first heat exchanger, pressure tank supports are arranged on the top outer wall and the bottom outer wall of the pressure chamber, and a partition plate is machined on the inner wall of the bottom of the pressure chamber; a water accumulation groove is formed between the bottom of the partition plate and the inner wall of the pressure chamber; according to the technical key points, the two second heat exchangers and the two first heat exchangers are arranged in the pressure chamber and are arranged in a built-in mode, and when the internal pressure of the pressure chamber continuously changes along with the diving depth, the humidity in the pressure chamber is regulated and controlled through the two first heat exchangers and the two second heat exchangers; corresponding control can be achieved according to different requirements of refrigeration, dehumidification or heating, it is guaranteed that the interiors of the two first heat exchangers and the two second heat exchangers are not affected by pressure in the pressure chamber, and flowing of liquid in the heat exchangers can not be affected by water pressure.

Description

Technical Field

[0001] The invention relates to the technical field of temperature and humidity environment control in a saturation diving pressure chamber, in particular to a high-pressure resistant and ultra-quiet temperature and humidity control system. Background Art

[0002] In the field of saturation diving, as the depth of deep-sea development is gradually increased, divers work and live in pressure chambers for longer and longer periods of time, and the gas pressure in the chamber is getting higher and higher. In order to ensure that the temperature, humidity and comfort level in the chamber meet the requirements under high-pressure conditions, higher requirements are placed on the functional performance of environmental control equipment.

[0003] At present, most of the environmental control equipment in the saturation diving field is arranged outside the pressure chamber, using an external circulation method. The environmental control equipment integrates a gas detection and removal tank, a pressure-resistant circulation fan driven by a magnetic seal motor, a refrigeration and dehumidification heat exchange tank, and a refrigeration and heating heat exchange tank, which are connected as a whole through a pressure-resistant pipeline to circulate and control the gas with the pressure chamber. Compared with the internal circulation environmental control equipment, this solution saves a certain amount of effective space in the pressure chamber, but there are the following problems and shortcomings:

[0004] (1) The refrigeration, dehumidification and heating heat exchangers are placed externally. In addition to the high pressure environment on the gas heat exchange side of the heat exchanger, a special high-pressure shell must be designed to install the heat exchanger core and connect them together through high-pressure pipelines, which occupies a large space outside the cabin and increases the risk of high-pressure gas leakage.

[0005] (2) In order to drive the gas in the cabin to flow through the external environmental control equipment, a special high-pressure circulating fan needs to be arranged. As the diving depth increases, the power of the fan becomes larger and larger. In order to adapt to the huge difference in heat exchange requirements under different modes, the fan speed range also increases accordingly. The operating noise generated will affect the comfort of the personnel in the cabin. Summary of the invention

[0006] In order to overcome the problem that most of the environmental control equipment in the existing saturation diving field is arranged outside the pressure chamber, an external circulation method is adopted. Since the external refrigeration, dehumidification and heating heat exchangers occupy a large space outside the chamber, the risk of leakage of high-pressure gas is increased. At the same time, in order to drive the gas in the chamber to flow through the external environmental control equipment, a special high-pressure resistant circulation fan needs to be arranged. As the diving depth increases, the power of the fan becomes larger and larger, and the operating noise generated will affect the comfort of the personnel in the chamber. The embodiment of the present application provides a high-pressure resistant ultra-quiet temperature and humidity control system, which is arranged in a built-in form by arranging two second heat exchangers and two first heat exchangers inside the pressure chamber. When the pressure inside the pressure chamber changes with the diving depth, the temperature inside the pressure chamber is regulated by the two first heat exchangers, and the humidity inside the pressure chamber is regulated by the two second heat exchangers. It can be controlled according to different needs of refrigeration, dehumidification or heating, and it is ensured that the inside of the two first heat exchangers and the two second heat exchangers are not affected by the pressure inside the pressure chamber, and the liquid flow inside the heat exchanger can be unaffected by the water pressure.

[0007] At the same time, by setting up two independent units of medium cold / hot water and low cold / hot water (for transporting cold and hot water) for the two first heat exchangers and the two partitions, the control unit can control the water supply temperature and flow rate according to the comparison between the real-time temperature and humidity in the cabin and the target values ​​according to the different needs of refrigeration, dehumidification or heating. Since the two sets of water supply units are controlled and work independently, in the event of a failure in one set, the other set can continue to operate and maintain the required environment in the cabin. The working reliability is high, which buys favorable time for the maintenance of equipment outside the pressure cabin.

[0008] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0009] A high-pressure resistant and ultra-quiet temperature and humidity control system comprises a pressure cabin, a second heat exchanger and a first heat exchanger, wherein two second heat exchangers are provided;

[0010] Two first heat exchangers are provided, and are arranged together with the two second heat exchangers on the inner side of the pressure chamber;

[0011] Among them, pressure tank brackets are provided on the top outer wall and the bottom outer wall of the pressure chamber, and a partition is processed on the inner wall of the bottom of the pressure chamber. The two first heat exchangers are located at the top of both sides of the pressure chamber, and the two second heat exchangers are located at the bottom of both sides of the pressure chamber. The two first heat exchangers and the two second heat exchangers completely cover the inner wall of the pressure chamber located on the top of the partition, and the external pipeline is connected with the first heat exchanger and the second heat exchanger through the interior of the pressure chamber.

[0012] In a possible implementation, a water trough is formed between the bottom of the partition and the inner wall of the pressure chamber, and water droplets condensed from the moisture in the gas in the pressure chamber due to temperature changes pass through the channel between the decorative panel and the inner wall of the chamber and enter the interior of the water trough.

[0013] In a possible implementation, a drain pipe is embedded in the interior of the pressure chamber, one end of the drain pipe is assembled with a drain solenoid valve, the outer wall of the drain pipe is assembled with a liquid level switch, and one end of the liquid level switch extends into the interior of the drain pipe.

[0014] In a possible implementation, the top surfaces at both ends of the partition are processed with the same decorative panel, the decorative panel is C-shaped, a plurality of holes are processed inside the decorative panel, and the outer wall of the decorative panel is lined with the inner wall of the pressure chamber.

[0015] In a possible implementation, the first heat exchanger and the second heat exchanger both include a collecting pipe, an input pipe is processed on the outer wall of one end of the collecting pipe, an output pipe is processed on the outer wall of the other end of the collecting pipe, and a plurality of fine heat exchange tubes are processed inside the collecting pipe.

[0016] In a possible implementation, the collecting pipe is installed inside the pressure chamber and is arranged concentrically with the pressure chamber, and one end of the input pipe and the output pipe both pass through the interior of the pressure chamber and are connected to an external pipeline.

[0017] In a possible implementation, the two first heat exchangers are cooling / heating heat exchangers, the two second heat exchangers are dehumidification / heating heat exchangers, and a circulating water system is disposed at one end of the two first heat exchangers and the two second heat exchangers.

[0018] In one possible implementation, the circulating water system includes an intermediate cold / hot water unit and a low cold / hot water unit, a control unit is arranged between the intermediate cold / hot water unit and the low cold / hot water unit, the intermediate cold / hot water unit is connected to the interior of the two first heat exchangers, and the low cold / hot water unit is connected to the interior of the two second heat exchangers.

[0019] The beneficial effects of this application are:

[0020] First, in this solution, by arranging the two second heat exchangers and the two first heat exchangers inside the pressure chamber so as to make them built-in, when the pressure chamber is affected by the change of water depth and the pressure inside the pressure chamber changes continuously, the humidity inside the pressure chamber can be regulated by the two first heat exchangers and the two second heat exchangers, and can be controlled according to different needs of cooling, dehumidification or heating, and ensure that the inside of the two first heat exchangers and the two second heat exchangers are not affected by the pressure inside the pressure chamber, the liquid flow inside the heat exchanger can be not affected by the water pressure, and there will be no noise caused by the use of the fan, which is conducive to the independent control of the temperature and humidity of the gas in the pressure chamber, and each heat exchanger can be cooled or heated as needed, with high energy utilization efficiency;

[0021] Second, in this scheme, by setting two independent units (for conveying cold and hot water) of medium cold / hot water and low cold / hot water for the two first heat exchangers and the two partitions, the control unit can control the water supply temperature and flow rate according to the comparison between the real-time temperature and humidity in the cabin and the target value according to the different needs of refrigeration, dehumidification or heating. Since the two sets of water supply units are controlled and work independently, in the event of a failure of one set, the other set can continue to operate and maintain the required environment in the cabin, with high working reliability, which can buy favorable time for the maintenance of the pressure cabin equipment;

[0022] Third, in this scheme, a partition is set at the bottom of the inner side of the pressure chamber, so that a water storage tank is formed between the partition and the inner wall of the pressure chamber. The condensed water generated by the dehumidification inside the pressure chamber accumulates in the water storage tank. The height of the condensed water level is monitored by the liquid level switch at one end of the drain pipe, so that the drain solenoid valve is opened to release the condensed water, thereby ensuring that the dryness of the gas inhaled by the user is appropriate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 The enlarged schematic diagram of the middle A part;

[0025] Figure 3 It is a schematic diagram of the structure of the first heat exchanger and the second heat exchanger of the present invention.

[0026] Figure numerals: 1. Pressure tank bracket; 2. Pressure chamber; 3. First heat exchanger; 4. Decorative panel; 5. Second heat exchanger; 501. Collecting pipe; 502. Input pipe; 503. Output pipe; 6. Partition; 7. Water storage tank; 8. Drain solenoid valve; 9. Liquid level switch; 10. Intermediate cold / hot water unit; 11. Control unit; 12. Low cold / hot water unit; 13. Micro heat exchange tube. DETAILED DESCRIPTION

[0027] The embodiment of the present application provides a high-pressure resistant and ultra-quiet temperature and humidity control system to solve the problem that most of the environmental control equipment in the saturation diving field is arranged outside the pressure chamber and adopts an external circulation method. Since the external refrigeration, dehumidification and heating heat exchangers occupy a large space outside the chamber, the risk of leakage of high-pressure gas is increased. At the same time, in order to drive the gas in the chamber to flow through the external environmental control equipment, a special high-pressure resistant circulation fan needs to be arranged. As the diving depth increases, the power of the fan becomes larger and larger, and the operating noise generated will affect the comfort of people in the chamber.

[0028] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0029] Embodiment 1:

[0030] This embodiment introduces a specific structure of a high-pressure resistant ultra-quiet temperature and humidity control system. Figure 1-Figure 3 As shown, it includes a pressure cabin 2 (providing a pressure corresponding to the water depth inside, thereby bearing high pressure and normal atmospheric pressure outside the cabin), two second heat exchangers 5 (dehumidification / heating heat exchangers) and two first heat exchangers 3 (cooling / heating heat exchangers), a pressure tank bracket 1 is provided at the top outer wall and the bottom outer wall of the pressure cabin 2, and a partition 6 is processed at the inner wall of the bottom of the pressure cabin 2;

[0031] like Figure 3 As shown, the first heat exchanger 3 and the second heat exchanger 5 both include a collecting pipe 501, an input pipe 502 is processed on the outer wall of one end of the collecting pipe 501, an output pipe 503 is processed on the outer wall of the other end of the collecting pipe 501, and a plurality of fine heat exchange tubes 13 are processed inside the collecting pipe 501;

[0032] The two first heat exchangers 3 and the two second heat exchangers 5 are jointly arranged on the inner side of the pressure cabin 2 (and the two first heat exchangers 3 are located at the top of both sides of the pressure cabin 2, and the two first heat exchangers 3 are located at the bottom of both sides of the pressure cabin 2). By making the two first heat exchangers 3 and the two second heat exchangers 5 completely cover the inner wall of the pressure cabin 2 located at the top of the partition 6, the heat exchanger can be fully applied to the interior of the pressure cabin 2.

[0033] Secondly, the first heat exchanger 3 and the second heat exchanger 5 are both made of micro-sized pipes with high pressure-bearing strength, which are suitable for the pressurization requirements of deep saturation diving (small-sized pipes have higher heat exchange efficiency and more compact structure);

[0034] At the same time, the heat exchange pipeline can be made of metal materials with high strength and good thermal conductivity, and can be flexibly arranged according to the heat exchange demand; the heat exchange pipeline is connected to the collection pipe 501 by welding, and the pressure resistance performance is reliable;

[0035] Furthermore, one end of the two first heat exchangers 3 and the two second heat exchangers 5 is provided with a circulating water system, and the collecting pipe 501 is assembled inside the pressure cabin 2 and is arranged concentrically with the pressure cabin 2. By passing one end of the input pipe 502 and the output pipe 503 through the interior of the pressure cabin 2 and connecting with the external pipe (the pipe in the circulating water system), the external pipe can be connected with the first heat exchanger 3 and the second heat exchanger 5 through the interior of the pressure cabin 2;

[0036] Furthermore, the top surfaces of both ends of the partition 6 are processed with the same decorative plate 4 (special ventilation and heat exchange holes are opened on the decorative plate to ensure that the gas in the cabin can contact the micro heat exchange pipeline of the heat exchanger for heat exchange and temperature control and condensate removal and humidity control), the decorative plate 4 is C-shaped, and the interior of the decorative plate 4 is processed with multiple holes (for the gas or liquid medium to pass through during refrigeration, dehumidification or heating), and the outer wall of the decorative plate 4 is lined with the inner wall of the pressure cabin 2;

[0037] In some examples, the circulating water system includes a middle cold / hot water unit 10 and a low cold / hot water unit 12, a control unit 11 is disposed between the middle cold / hot water unit 10 and the low cold / hot water unit 12, the middle cold / hot water unit 10 is connected to the inside of the two first heat exchangers 3, and the low cold / hot water unit 12 is connected to the inside of the two second heat exchangers 5;

[0038] Among them, by setting two independent units for the two first heat exchangers 3 and the two partitions 6 for conveying cold and hot medium water, the control unit 11 can control the water supply temperature and flow rate according to the comparison between the real-time temperature and humidity in the pressure cabin 2 and the target value according to the different needs of cooling, dehumidification or heating;

[0039] At the same time, the low cold / hot water unit 12 supplies water to the two second heat exchangers 5 dehumidification / heating heat exchangers for dehumidification or heating, and the medium cold / hot water unit 10 supplies water to the two first heat exchangers 3 refrigeration / heating heat exchangers for cooling or heating. The condensed water is supplied by the two second heat exchangers 5 dehumidification / heating heat exchangers with refrigerant water whose dew point temperature is lower than the ambient temperature and humidity corresponding to the dew point temperature for cooling and dehumidification, and the two first heat exchangers 3 refrigeration / heating heat exchangers are supplied with refrigerant water whose dew point temperature is higher than the ambient temperature and humidity corresponding to the dew point temperature for cooling. Both of them can also be supplied with hot medium water for heating and temperature increase (the two sets of water supply units are independently controlled and work. In the event of a failure in one set, the other set can continue to operate and maintain the required environment in the cabin. The working reliability is high, which provides favorable time for the maintenance of equipment outside the pressure cabin).

[0040] The above design arranges the two second heat exchangers 5 and the two first heat exchangers 3 inside the pressure chamber 2 so as to be arranged in a built-in form. When the pressure inside the pressure chamber 2 changes with the diving depth, the temperature inside the pressure chamber 2 is regulated by the two first heat exchangers 3, and the water vapor generated by the temperature change is removed by the two second heat exchangers 5, so as to ensure that the gas inhaled by the user is dry and comfortable.

[0041] At the same time, by processing a plurality of fine heat exchange tubes 13 inside the collecting pipe 501 on the second heat exchanger 5 and the first heat exchanger 3, the second heat exchanger 5 and the first heat exchanger 3 are provided with tiny pipelines inside to ensure the pressure-bearing strength of the first heat exchanger 3 and the second heat exchanger 5, so as to adapt to the pressurization requirements of deep saturation diving.

[0042] Embodiment 2:

[0043] This embodiment introduces a specific structure of a high-pressure resistant ultra-quiet temperature and humidity control system. Figure 1 As shown, a water storage tank 7 is formed between the bottom of the partition 6 and the inner wall of the pressure chamber 2, a drain pipe is embedded in the pressure chamber 2, one end of the drain pipe is assembled with a drain solenoid valve 8, and the outer wall of the drain pipe is assembled with a liquid level switch 9;

[0044] By setting a partition 6 at the bottom inner wall of the pressure chamber 2, when the water in the gas in the pressure chamber 2 is condensed by the temperature change, the water droplets pass through the channel between the decorative plate and the inner wall of the chamber and enter the inside of the water collection tank 7, so that the condensed water droplets can be collected when the temperature inside the pressure chamber 2 changes;

[0045] At the same time, because the two first heat exchangers 3 and the two second heat exchangers 5 completely cover the inner wall of the pressure chamber 2 located on the top of the partition 6, only the water storage tank 7 at the bottom of the partition 6 is not affected by the heat exchanger. In the actual application process, it can be avoided that the heat in the heat exchanger will re-evaporate the water in the water storage tank 7 and affect the dryness of the gas in the pressure chamber 2;

[0046] Secondly, by installing a liquid level switch 9 at one end of the drain pipe and extending one end of the liquid level switch 9 into the interior of the drain pipe, after the condensed water generated by dehumidification is accumulated inside the water storage tank 7, the liquid level switch 9 detects that the liquid level has reached the set height, and then opens the drain solenoid valve 8 to realize the drainage function. At the same time, after a period of time, the drain solenoid valve 8 is closed and opened again after the condensed water is full.

[0047] The above-mentioned design sets a partition 6 at the bottom of the inner side of the pressure chamber 2, thereby forming a water collection tank 7 between the partition 6 and the inner wall of the pressure chamber 2. The condensed water generated by the dehumidification inside the pressure chamber 2 accumulates inside the water collection tank 7. The height of the condensed water level is monitored by the liquid level switch 9 at one end of the drain pipe. After reaching the set height, the drain solenoid valve 8 is opened to release the condensed water, and the drain solenoid valve 8 is closed after a period of time to continue collecting the condensed water, and ensure that the interior of the pressure chamber 2 is in a sealed state, so as to facilitate the timely discharge of water droplets condensed by the temperature change in the gas in the pressure chamber 2, and ensure that the dryness of the gas inhaled by the user is appropriate.

[0048] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A high-pressure resistant and ultra-quiet temperature and humidity control system, characterized in that: include: Pressure chamber (2); The second heat exchanger (5) is provided with two; Two first heat exchangers (3) are provided and are arranged together with the two second heat exchangers (5) on the inner side of the pressure chamber (2); The pressure tank bracket (1) is provided on the top outer wall and the bottom outer wall of the pressure chamber (2); a partition (6) is processed on the inner wall of the bottom of the pressure chamber (2); the two first heat exchangers (3) are located at the top of both sides of the pressure chamber (2); the two second heat exchangers (5) are located at the bottom of both sides of the pressure chamber (2); the two first heat exchangers (3) and the two second heat exchangers (5) completely cover the inner wall of the pressure chamber (2) located at the top of the partition (6); and the external pipeline is connected with the first heat exchanger (3) and the second heat exchanger (5) through the interior of the pressure chamber (2).

2. A high-pressure resistant and ultra-quiet temperature and humidity control system as claimed in claim 1, characterized in that: A water collection groove (7) is formed between the bottom of the partition (6) and the inner wall of the pressure chamber (2), and water droplets condensed by the moisture in the gas in the pressure chamber (2) due to temperature changes pass through the channel between the decorative plate (4) and the inner wall of the chamber and enter the interior of the water collection groove (7).

3. A high-pressure resistant and ultra-quiet temperature and humidity control system as claimed in claim 1, characterized in that: The pressure chamber (2) is internally embedded with a drain pipe, one end of which is assembled with a drain solenoid valve (8), and the outer wall of the drain pipe is assembled with a liquid level switch (9), one end of which extends into the interior of the drain pipe.

4. A high-pressure resistant and ultra-quiet temperature and humidity control system as claimed in claim 1, characterized in that: The top surfaces of both ends of the partition (6) are processed with a same decorative plate (4), the decorative plate (4) is C-shaped, a plurality of holes are processed inside the decorative plate (4), and the outer wall of the decorative plate (4) is lined with the inner wall of the pressure chamber (2).

5. A high-pressure resistant and ultra-quiet temperature and humidity control system as claimed in claim 1, characterized in that: The first heat exchanger (3) and the second heat exchanger (5) both comprise a collecting pipe (501), the outer wall of one end of the collecting pipe (501) being processed with an input pipe (502), the outer wall of the other end of the collecting pipe (501) being processed with an output pipe (503), and the interior of the collecting pipe (501) being processed with a plurality of fine heat exchange tubes (13).

6. A high-pressure resistant and ultra-quiet temperature and humidity control system as claimed in claim 5, characterized in that: The collecting pipe (501) is installed inside the pressure chamber (2) and is arranged concentrically with the pressure chamber (2). One end of the input pipe (502) and the output pipe (503) both pass through the interior of the pressure chamber (2) and are connected to external pipelines.

7. A high-pressure resistant and ultra-quiet temperature and humidity control system as claimed in claim 1, characterized in that: The two first heat exchangers (3) are cooling / heating heat exchangers, the two second heat exchangers (5) are dehumidification / heating heat exchangers, and one end of the two first heat exchangers (3) and the two second heat exchangers (5) is provided with a circulating water system.

8. A high-pressure resistant and ultra-quiet temperature and humidity control system as claimed in claim 7, characterized in that: The circulating water system comprises a middle cold / hot water unit (10) and a low cold / hot water unit (12), wherein a control unit (11) is arranged between the middle cold / hot water unit (10) and the low cold / hot water unit (12); The intermediate cold / hot water unit (10) is connected to the interior of the two first heat exchangers (3), and the low cold / hot water unit (12) is connected to the interior of the two second heat exchangers (5).

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