Micro-pressure oxygen-enriched cabin adjusting device, control method and system

Abstract

The invention discloses a micro-pressure oxygen-enriched cabin adjusting device, a micro-pressure oxygen-enriched cabin control method and a micro-pressure oxygen-enriched cabin control system. The device is characterized by comprising a high-pressure gas conveying branch, a mixing chamber, an air supply temperature adjusting branch, a sealed cabin and a circulating pump, the first end of the mixing chamber communicates with the high-pressure gas conveying branch, and the second end of the mixing chamber communicates with the air supply temperature adjusting branch. The third end of the mixing chamber is communicated with the circulating passage of the sealed cabin; the first end of the sealed cabin communicates with the air supply temperature adjusting branch, and the second end of the sealed cabin communicates with the circulation path. The circulating pump is arranged on the circulating passage; the high-pressure gas conveying branch is used for conveying the pressurized air to the mixing chamber; the mixing chamber is used for mixing the air of the high-pressure gas conveying branch with the air output by the sealed cabin and then outputting the mixed air; the air supply temperature adjusting branch is used for adjusting the temperature of mixed gas obtained in the mixing chamber and then conveying the mixed gas to the sealed cabin. Compared with an independent air-conditioning device arranged in the sealed cabin, coupling control of pressurization and temperature is achieved, and the system is more energy-saving and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of plateau oxygen supply guarantee, and in particular to a micro-pressure oxygen-enriched cabin regulating device, a control method and a system. Background Art

[0002] The micro-pressure oxygen-enriched cabin is a medical device used to provide high-concentration oxygen, usually used to treat various respiratory diseases. It helps patients inhale oxygen more effectively by increasing the concentration and pressure of oxygen, thereby improving symptoms such as dyspnea. The micro-pressure oxygen-enriched cabin is also known as the plateau oxygen bar and plateau health cabin. It has great application prospects, has a good preventive and therapeutic effect on chronic diseases, can effectively avoid the occurrence of altitude sickness, and has become the preferred oxygen supplement product for people who go to the plateau and work and live in the plateau.

[0003] However, the temperature and pressure of the micro-pressure oxygen-enriched cabin cannot always be kept within a comfortable range: the input of fresh air and oxygen-enriched gas causes complex material and energy exchanges; the solar radiation intensity is high in plateau areas, and the temperature difference between morning and evening and the environmental changes caused by cabin movement will also cause changes in heat load; for mobile cabins, the convective heat transfer coefficients of the cabin outer surface in static and moving states are also different, which seriously affects the use of the micro-pressure oxygen-enriched cabin. Summary of the invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide a micro-pressure oxygen-enriched cabin regulating device, control method and system that overcome the above problems or at least partially solve the above problems.

[0005] In a first aspect, the present invention provides a micro-pressure oxygen-enriched cabin regulating device, comprising: a high-pressure gas delivery branch, a mixing chamber, an air supply temperature regulating branch, a sealed cabin, and a circulating pump;

[0006] The high-pressure gas transmission branch, the mixing chamber, the air supply temperature adjustment branch, the sealed cabin and the circulation pump are connected in sequence;

[0007] The first end of the mixing chamber is connected to the high-pressure gas delivery branch, the second end of the mixing chamber is connected to the air supply temperature adjustment branch; the third end of the mixing chamber is connected to the circulation passage of the sealed cabin;

[0008] The first end of the sealed cabin is connected to the air supply and temperature adjustment branch, and the second end of the sealed cabin is connected to the circulation passage; the circulation pump is arranged on the circulation passage;

[0009] A high-pressure gas delivery branch, used for delivering pressurized air to the mixing chamber;

[0010] The mixing chamber is used to mix the air from the high-pressure gas transmission branch with the air output from the sealed cabin and then output it;

[0011] The air supply temperature regulating branch is used to adjust the temperature of the mixed gas obtained in the mixing chamber and then transport it to the sealed cabin, so that the temperature, pressure and oxygen content in the sealed cabin remain stable;

[0012] The circulation pump is used to output the air in the sealed cabin to the mixing chamber.

[0013] In one embodiment, the micro-pressure oxygen-enriched chamber regulating device further comprises: an exhaust branch;

[0014] The exhaust branch is communicated with the third end of the sealed cabin;

[0015] The exhaust branch includes a fifth valve and an expansion valve connected in series in sequence. The exhaust branch is used to exhaust the air in the sealed cabin when the carbon dioxide concentration in the sealed cabin is greater than a preset first threshold value.

[0016] In one embodiment, the high-pressure gas delivery branch includes: a booster fan, a gas storage tank, a heat exchange device, a pressure regulating valve, a flow regulating valve, a first flow meter, a first temperature measuring instrument, and a first pressure measuring instrument connected in series in sequence;

[0017] The heat exchange device includes a heat exchanger and a first valve connected in parallel, and the heat exchange device is used to adjust the temperature of the gas delivered on the high-pressure gas delivery branch;

[0018] The flow regulating valve is used to adjust the flow rate of the gas delivered on the high-pressure gas delivery branch so as to adjust the proportion of fresh air in the mixing chamber to change the temperature in the mixing chamber.

[0019] In one embodiment, the air supply temperature control branch includes: a temperature control device, a filtering and purification device, a fourth valve, a second temperature measuring instrument, and a second flow meter connected in series in sequence;

[0020] The temperature control device includes a heating branch and a cooling branch connected in parallel; the heating branch includes a third valve and a heating device connected in series, and the cooling branch includes a second valve and a cooling device connected in series; the temperature control device cools the gas by closing the third valve, opening the second valve and switching the cooling device, or heats the gas by closing the second valve, opening the third valve and the heating device.

[0021] In one embodiment, the sealed cabin includes: a third temperature meter, a second pressure meter, and an oxygen meter.

[0022] In one embodiment, the fresh air in the mixing chamber accounts for no less than 10%.

[0023] In one embodiment, the thermostatic device is used when the flow regulating valve is fully opened.

[0024] In a second aspect, the present invention provides a control method for a micro-pressure oxygen-enriched chamber regulating device, comprising the following steps:

[0025] According to the data collected by the third temperature measuring instrument, the second pressure measuring instrument and the oxygen measuring instrument in the sealed cabin of the micro-pressure oxygen-enriched cabin regulating device, the gas temperature, air pressure and oxygen content in the sealed cabin are obtained;

[0026] According to the data collected by the third temperature meter, the second pressure meter and the oxygen meter in the sealed cabin, the high-pressure gas delivery branch is controlled to deliver new air to the mixing chamber;

[0027] Control the circulation pump to transport the gas in the sealed cabin to the mixing chamber to mix with the gas in the high-pressure gas transmission branch;

[0028] Control the air supply and temperature adjustment branch to adjust the temperature of the mixed gas in the mixing chamber and transport it to the sealed cabin to keep the gas temperature, pressure and oxygen content in the sealed cabin within the preset value range;

[0029] When the carbon dioxide concentration in the sealed cabin is too high, the exhaust branch is controlled to discharge the gas through the expansion valve to reduce pressure and temperature.

[0030] In one embodiment, when the micro-pressure oxygen-enriched cabin regulating device is in the pressurization stage, the booster fan and the fourth valve are turned on, and the flow regulating valve is fully opened;

[0031] When the temperature monitored by the third thermometer is lower than the preset first threshold, the first valve is opened; if the temperature monitored by the second thermometer is lower than the preset third threshold, the heating device is turned on;

[0032] When the temperature monitored by the third thermometer is higher than the preset second threshold, the first valve is closed; if the temperature monitored by the second thermometer is higher than the preset fourth threshold, the refrigeration device is turned on.

[0033] In one embodiment, when the micro-pressure oxygen-enriched chamber regulating device is in the pressure stabilization stage, the circulation pump and the fifth valve are turned on, and the flow regulating valve is adjusted to a smaller opening;

[0034] When the oxygen concentration in the sealed cabin is lower than the fifth threshold, or the temperature monitored by the third thermometer is lower than the first threshold, or the temperature monitored by the third thermometer is higher than the second threshold, the flow regulating valve is increased and the opening of the fifth valve is increased.

[0035] In one embodiment, if the temperature monitored by the third thermometer is lower than the first threshold value, and when the temperature monitored by the second thermometer is higher than the fourth threshold value, the first valve remains open and the flow regulating valve opening is reduced; if the temperature monitored by the second thermometer is still higher than the fourth threshold value, the first valve is closed;

[0036] If the temperature monitored by the third thermometer is lower than the first threshold, and the temperature monitored by the second thermometer is between the third threshold and the fourth threshold, no action is required;

[0037] If the temperature monitored by the third thermometer is lower than the first threshold, and when the temperature monitored by the second thermometer is lower than the third threshold, the first valve remains open and the flow regulating valve is increased; when the temperature monitored by the second thermometer is still lower than the third threshold, the heating device is turned on.

[0038] In one embodiment, if the temperature monitored by the third thermometer is higher than the second threshold value, and the temperature monitored by the second thermometer is lower than the third threshold value, the first valve remains closed and the flow regulating valve opening is reduced; if the temperature monitored by the second thermometer is still lower than the third threshold value, the first valve is opened;

[0039] If the temperature monitored by the third thermometer is higher than the second threshold, and the temperature monitored by the second thermometer is between the third threshold and the fourth threshold, no action is required;

[0040] If the temperature monitored by the third thermometer is higher than the second threshold and the temperature monitored by the second thermometer is higher than the fourth threshold, the first valve remains closed and the flow regulating valve opening is increased; when the temperature monitored by the second thermometer is still higher than the fourth threshold, the refrigeration device is turned on.

[0041] In a third aspect, the present invention further provides a micro-pressure oxygen-enriched cabin adjustment system, including a data acquisition module, a control module, and a micro-pressure oxygen-enriched cabin adjustment device;

[0042] A data acquisition module is connected to the micro-pressure oxygen-enriched cabin adjustment device to obtain temperature, pressure and oxygen content data in the sealed cabin;

[0043] The control module controls the micro-pressure oxygen-enriched cabin regulating device according to the acquired temperature, pressure and oxygen content data in the sealed cabin, so as to keep the gas temperature, pressure and oxygen content in the sealed cabin within a preset value range.

[0044] The beneficial effects of the above technical solution provided by the implementation case of the present invention include at least:

[0045] The embodiments of the present invention provide a micro-pressure oxygen-enriched cabin regulating device, a control method and a system. According to the data changes of the temperature, air pressure and oxygen content in the sealed cabin, the micro-pressure oxygen-enriched cabin regulating device is controlled to mix the fresh air delivered by the high-pressure gas delivery branch and the gas in the sealed cabin through the circulating pump into the mixing chamber. The temperature of the mixed gas is adjusted by adjusting the proportion of fresh air to keep the temperature, air pressure and oxygen content in the sealed cabin within a preset range. When the temperature cannot be adjusted by the fresh air ratio, the mixed gas is adjusted by the air supply temperature adjustment branch to keep the temperature, air pressure and oxygen content in the sealed cabin within the preset range. The invention can accurately adjust the pressure and temperature of the micro-pressure oxygen-enriched cabin, reduce power consumption, improve portability, and be more energy-saving and efficient.

[0046] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0047] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0049] Figure 1 It is a structural schematic diagram of the micro-pressure oxygen-enriched cabin regulating device of the present invention;

[0050] Figure 2 It is a main flow chart of the control method of the micro-pressure oxygen-enriched cabin regulating device of the present invention;

[0051] Figure 3 It is a detailed flow chart of the control method of the micro-pressure oxygen-enriched cabin regulating device of the present invention;

[0052] Figure 4 It is a structural schematic diagram of the control system of the micro-pressure oxygen-enriched cabin regulating device of the present invention.

[0053] Description of reference numerals:

[0054] 1-boosting fan; 2-gas storage tank; 3-heat exchanger; 4-first valve; 5-pressure regulating valve; 6-flow regulating valve; 7-first flow meter; 8-first temperature measuring instrument; 9-first pressure measuring instrument; 10-mixing chamber; 11-second valve; 12-third valve; 13-refrigeration device; 14-heating device; 15-filtration and purification device; 16-fourth valve; 17-second temperature measuring instrument; 18-second flow meter; 19-sealed cabin; 20-third temperature measuring instrument; 21-second pressure measuring instrument; 22-oxygen measuring instrument; 23-circulation pump; 24-fifth valve; 25-expansion valve. DETAILED DESCRIPTION

[0055] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0056] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "far", "near", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly 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, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The inventors of the present application have discovered that, during the control process of the existing micro-pressure oxygen-enriched cabin, an oxygen-enriched environment is created in high altitude areas by means of pressurization, but temperature regulation relies on independently set air conditioning, specifically including installing a split air conditioner in the cabin, or placing the cabin in an air-conditioned room. Both of these temperature control schemes consume a large amount of additional electrical energy and seriously reduce the portability and flexibility of the micro-pressure oxygen-enriched cabin, which is not conducive to energy saving and efficiency.

[0059] In view of the problems existing in the prior art, the embodiments of the present invention provide a micro-pressure oxygen-enriched chamber adjustment device, a control method and a system.

[0060] The structure of a micro-pressure oxygen-enriched cabin regulating device provided by an embodiment of the present invention is described in detail below in conjunction with the accompanying drawings:

[0061] refer to Figure 1 As shown, the present invention provides a micro-pressure oxygen-enriched cabin regulating device, comprising: a high-pressure gas transmission branch, a mixing chamber 10, an air supply temperature regulating branch, a sealed cabin 19, and a circulating pump 23;

[0062] The high-pressure gas delivery branch, the mixing chamber 10, the air supply temperature adjustment branch, the sealed cabin 19 and the circulation pump 23 are connected in sequence;

[0063] The first end of the mixing chamber 10 is connected to the high-pressure gas delivery branch, and the second end of the mixing chamber 10 is connected to the air supply temperature adjustment branch; the third end of the mixing chamber 10 is connected to the circulation passage of the sealed cabin 19;

[0064] The first end of the sealed cabin 19 is connected to the air supply and temperature adjustment branch, and the second end of the sealed cabin 19 is connected to the circulation passage; the circulation pump is arranged on the circulation passage;

[0065] The sealed cabin 19 is used to provide an oxygen-rich environment for personnel to rest and recover.

[0066] A high-pressure gas delivery branch for delivering pressurized air to the mixing chamber 10;

[0067] The mixing chamber 10 is used to mix the air from the high-pressure gas delivery branch with the air output from the sealed cabin 19 and then output it;

[0068] The air supply temperature regulating branch is used to adjust the temperature of the mixed gas obtained in the mixing chamber 10 and then transport it to the sealed cabin 19, so that the temperature, pressure and oxygen content in the sealed cabin 19 remain stable;

[0069] The circulation pump 23 is used to output the air in the sealed cabin 19 to the mixing chamber 10 .

[0070] Continue to refer Figure 1 As shown, in one embodiment, the micro-pressure oxygen-enriched chamber regulating device may further include: an exhaust branch;

[0071] The exhaust branch is communicated with the third end of the sealed cabin 19;

[0072] An exhaust branch, comprising a fifth valve 24 and an expansion valve 25 connected in series, the exhaust branch being used to exhaust the air in the sealed cabin 19 when the carbon dioxide concentration in the sealed cabin 19 is greater than a preset first threshold value;

[0073] The low-pressure and low-temperature gas obtained after the pressure reduction and temperature reduction effect of the expansion valve 25 can be used for heat dissipation of equipment such as motors, and then discharged to the environment, thereby improving resource utilization.

[0074] refer to Figure 1 As shown, in one embodiment, the high-pressure gas delivery branch includes: a booster fan 1, a gas storage tank 2, a heat exchange device, a pressure regulating valve 5, a flow regulating valve 6, a first flow meter 7, a first temperature measuring instrument 8, and a first pressure measuring instrument 9 connected in series in sequence;

[0075] The heat exchange device comprises a heat exchanger 3 and a first valve 4 connected in parallel, and the heat exchange device is used to adjust the temperature of the gas delivered on the high-pressure gas delivery branch;

[0076] The flow regulating valve 6 is used to adjust the flow rate of the gas delivered on the high-pressure gas delivery branch, so as to adjust the proportion of fresh air in the mixing chamber to change the temperature in the mixing chamber;

[0077] The first flow meter 7 monitors the gas flow rate of the high-pressure gas transmission branch in real time, the first temperature measuring instrument 8 monitors the gas temperature of the high-pressure gas transmission branch in real time, and the first pressure measuring instrument monitors the pressure of the gas transmitted by the high-pressure gas transmission branch in real time;

[0078] The gas transported by the high-pressure gas transport branch is high-pressure gas generated by the gas at normal pressure passing through the booster fan 1 and the pressure regulating valve 5 .

[0079] In one embodiment, reference Figure 1 As shown, the air supply temperature control branch includes: a temperature control device, a filtering and purifying device 15, a fourth valve 16, a second temperature measuring instrument 17, and a second flow meter 18 connected in series in sequence;

[0080] The temperature control device includes a heating branch and a cooling branch connected in parallel; the heating branch includes a third valve 12 and a heating device 14 connected in series, and the cooling branch includes a second valve 11 and a cooling device 13 connected in series; the temperature control device cools the gas by closing the third valve 12, opening the second valve 11 and switching the cooling device 13, or heats the gas by closing the second valve 11, opening the third valve 12 and the heating device 14;

[0081] For example, in the heating condition, the third valve 12 is opened, the second valve 11 is closed, and the mixed gas is passed through the opened heating device 14, so that the gas can be heated;

[0082] For example, in a refrigeration condition, the third valve 12 is closed, the second valve 11 is opened, and the mixed gas is allowed to pass through the opened refrigeration device 13, so that the gas can be refrigerated;

[0083] The filtering and purifying device 15 has the function of purifying the mixed gas and removing carbon dioxide. The second temperature measuring instrument 17 is used for real-time monitoring of the temperature of the mixed gas. The second flow meter 18 is used for real-time monitoring of the flow of the mixed gas.

[0084] Reference Figure 1 As shown, in one embodiment, the sealed cabin 19 includes: a third temperature measuring instrument 20, a second pressure measuring instrument 21, and an oxygen measuring instrument 22;

[0085] The second pressure meter 21 is used to monitor the air pressure inside the sealed cabin 19 in real time, the oxygen meter 22 is used to monitor the oxygen concentration inside the sealed cabin 19 in real time, and the third temperature meter 20 is used to monitor the air temperature inside the sealed cabin 19 in real time.

[0086] In one embodiment, the proportion of fresh air in the mixing chamber 10 is no less than 10%.

[0087] See attached Figure 3 As shown, in one embodiment, the temperature regulating device is used when the flow regulating valve 6 is fully opened;

[0088] If the flow regulating valve 6 is not fully opened, it means that the temperature can also be adjusted by adjusting the fresh air ratio.

[0089] refer to Figure 2 As shown, the present invention provides a control method for a micro-pressure oxygen-enriched chamber regulating device, comprising the following steps:

[0090] S1, obtaining the gas temperature, air pressure and oxygen content in the sealed cabin 19 according to the data collected by the third temperature measuring instrument 20, the second pressure measuring instrument 21 and the oxygen measuring instrument 22 in the sealed cabin 19 of the micro-pressure oxygen-enriched cabin regulating device;

[0091] S2, according to the data collected by the third temperature meter 20, the second pressure meter 21, and the oxygen meter 22 in the sealed cabin 19, controls the high-pressure gas delivery branch to deliver new air to the mixing chamber 10; controls the circulation pump 23 to deliver the gas in the sealed cabin 19 to the mixing chamber 10 to mix with the gas in the high-pressure gas delivery branch; controls the air supply temperature adjustment branch to adjust the temperature of the mixed gas in the mixing chamber 10 and deliver it to the sealed cabin 19, so as to keep the gas temperature, pressure, and oxygen content in the sealed cabin 19 within a preset value range;

[0092] S3, when the carbon dioxide concentration in the sealed cabin 19 is too high, the exhaust branch is controlled to discharge the gas through the expansion valve 25 to reduce the pressure and temperature.

[0093] In step S2, the operation of the booster fan 1, the flow regulating valve 6, the heating device 14, the refrigeration device 13 and the circulation pump 23 are controlled according to the real-time monitored temperature, pressure and oxygen content inside the sealed cabin 19, so as to keep the temperature, pressure and oxygen content inside the sealed cabin 19 within the set range;

[0094] Reference Figure 3 As shown, when the micro-pressure oxygen-enriched cabin regulating device is turned on as a whole, the booster fan 1 is started, the flow regulating valve 6 is adjusted, and the first valve 4 is adjusted to adjust the temperature and pressure of the mixed gas;

[0095] The proportion of fresh air is adjusted by adjusting the flow regulating valve 6 to change the temperature of the mixed gas. When the temperature cannot be adjusted by adjusting the flow regulating valve 6, the flow regulating valve 6 is fully opened, and the temperature regulating device is turned on to adjust the temperature of the mixed gas, and the opening of the fifth valve 24 and the flow regulating valve 6 is adjusted according to the content and gas pressure;

[0096] Specifically, the adjustment method can be implemented in a corresponding manner according to different situations, for example:

[0097] In one embodiment, when the micro-pressure oxygen-enriched cabin regulating device is in the pressurization stage, the booster fan 1 and the fourth valve 16 are turned on, and the flow regulating valve 6 is fully opened;

[0098] When the temperature monitored by the third thermometer 20 is lower than the preset first threshold, the first valve 4 is opened; if the temperature monitored by the second thermometer 17 is lower than the preset third threshold, the heating device 14 is turned on;

[0099] When the temperature monitored by the third thermometer 20 is higher than the preset second threshold, the first valve 4 is closed; if the temperature monitored by the second thermometer 17 is higher than the preset fourth threshold, the refrigeration device 13 is turned on.

[0100] In one embodiment, when the micro-pressure oxygen-enriched chamber regulating device is in the pressure stabilization stage, the circulation pump 23 and the fifth valve 24 are turned on, and the flow regulating valve 6 is adjusted to a smaller opening;

[0101] When the oxygen concentration in the sealed cabin 19 is lower than the fifth threshold, or the temperature monitored by the third thermometer 20 is lower than the first threshold, or the temperature monitored by the third thermometer 20 is higher than the second threshold, the flow regulating valve 6 and the opening of the fifth valve 24 are increased.

[0102] In one embodiment, if the temperature monitored by the third thermometer 20 is lower than the first threshold value, and when the temperature monitored by the second thermometer 17 is higher than the fourth threshold value, the first valve 4 remains open, and the flow regulating valve 6 is opened at a smaller opening, but the proportion of fresh air in the supply air is required to be no less than 10%; if the temperature monitored by the second thermometer 17 is still higher than the fourth threshold value, the first valve 4 is closed;

[0103] If the temperature monitored by the third thermometer 20 is lower than the first threshold, and the temperature monitored by the second thermometer 17 is between the third threshold and the fourth threshold, no action is required;

[0104] If the temperature monitored by the third thermometer 20 is lower than the first threshold, and when the temperature monitored by the second thermometer 17 is lower than the third threshold, the first valve 4 remains open and the flow regulating valve 6 is increased; when the temperature monitored by the second thermometer 17 is still lower than the third threshold, the heating device 14 is turned on.

[0105] In one embodiment, if the temperature monitored by the third thermometer 20 is higher than the second threshold value, and the temperature monitored by the second thermometer 17 is lower than the third threshold value, the first valve 4 remains closed, and the flow regulating valve 6 is opened to a smaller degree, but the proportion of fresh air in the supply air is required to be no less than 10%; if the temperature monitored by the second thermometer 17 is still lower than the third threshold value, the first valve 4 is opened;

[0106] If the temperature monitored by the third thermometer 20 is higher than the second threshold, and the temperature monitored by the second thermometer 17 is between the third threshold and the fourth threshold, no action is required;

[0107] If the temperature monitored by the third thermometer 20 is higher than the second threshold value, and the temperature monitored by the second thermometer 17 is higher than the fourth threshold value, the first valve 4 remains closed and the opening of the flow regulating valve 6 is increased; when the temperature monitored by the second thermometer 17 is still higher than the fourth threshold value, the refrigeration device 13 is turned on.

[0108] Based on the same inventive concept, the embodiment of the present invention also provides a micro-pressure oxygen-enriched cabin adjustment system, referring to the attached Figure 4 As shown, the present invention also provides a micro-pressure oxygen-enriched cabin adjustment system, including a data acquisition module, a control module and a micro-pressure oxygen-enriched cabin adjustment device;

[0109] A data acquisition module is connected to the micro-pressure oxygen-enriched cabin adjustment device to obtain the temperature, pressure and oxygen content data in the sealed cabin 19;

[0110] The control module controls the micro-pressure oxygen-enriched cabin regulating device according to the acquired temperature, pressure and oxygen content data in the sealed cabin 19 to keep the temperature, pressure and oxygen content of the gas in the sealed cabin 19 within a preset value range;

[0111] For example, the data acquisition module is used to obtain the temperature, pressure and oxygen content inside the sealed cabin 19 in real time;

[0112] The control module will use remote technology to deliver high-temperature and high-pressure air to the mixing chamber 10 through the high-pressure gas delivery branch according to the temperature, pressure and oxygen content inside the sealed cabin 19 obtained by the data acquisition module, and control the circulating pump 23 to deliver the air in the sealed cabin 19 to the mixing chamber 10 to mix with the high-temperature and high-pressure air to form a mixed gas, and control the air supply temperature adjustment branch to adjust the temperature of the mixed gas and then deliver it to the sealed cabin 19, so that the temperature, pressure and oxygen content in the sealed cabin 19 are maintained at the set values;

[0113] The control module also controls the air in the sealed cabin 19 to reduce pressure and temperature and obtain low-pressure and low-temperature gas for heat dissipation of motors and other equipment by controlling the exhaust branch when the data acquisition module shows that the carbon dioxide concentration in the sealed cabin 19 is too high.

[0114] The embodiment of the present invention provides a micro-pressure oxygen-enriched cabin adjustment device, control method and system, which adjusts the temperature of the mixed gas by adjusting the fresh air ratio, and purifies and removes carbon dioxide from the mixed gas. When it is difficult to adjust the temperature in the cabin by adjusting the fresh air ratio, the mixed gas is temperature-controlled by the temperature control device. Compared with setting an independent air conditioning device in the cabin, the pressurization and temperature coupling control is realized, which is more energy-saving and efficient.

[0115] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A micro-pressure oxygen-enriched cabin regulating device, It is characterized in that include: High-pressure gas transmission branch, mixing chamber, air supply and temperature control branch, sealed cabin, circulation pump; The high-pressure gas delivery branch, the mixing chamber, the air supply and temperature adjustment branch, the sealed cabin and the circulation pump are connected in sequence; The first end of the mixing chamber is connected to the high-pressure gas delivery branch, the second end of the mixing chamber is connected to the air supply temperature adjustment branch; the third end of the mixing chamber is connected to the circulation passage of the sealed cabin; The first end of the sealed cabin is connected to the air supply temperature adjustment branch, and the second end of the sealed cabin is connected to the circulation passage; the circulation pump is arranged on the circulation passage; The high-pressure gas delivery branch is used to deliver the pressurized air to the mixing chamber; The mixing chamber is used to mix the air from the high-pressure gas delivery branch with the air output from the sealed cabin and then output the mixed air; The air supply temperature regulating branch is used to adjust the temperature of the mixed gas obtained in the mixing chamber and then transport it to the sealed cabin, so that the temperature, pressure and oxygen content in the sealed cabin remain stable; The circulation pump is used to output the air in the sealed cabin to the mixing chamber.

2. The micro-pressure oxygen-enriched cabin regulating device according to claim 1, It is characterized in that It also includes: an exhaust branch; the exhaust branch is connected to the third end of the sealed cabin; The exhaust branch includes a fifth valve and an expansion valve connected in series in sequence. The exhaust branch is used to exhaust the air in the sealed cabin when the carbon dioxide concentration in the sealed cabin is greater than a preset first threshold value.

3. The micro-pressure oxygen-enriched cabin regulating device according to claim 1, It is characterized in that The high-pressure gas delivery branch comprises: a booster fan, a gas storage tank, a heat exchange device, a pressure regulating valve, a flow regulating valve, a first flow meter, a first temperature measuring instrument, and a first pressure measuring instrument connected in series in sequence; The heat exchange device comprises a heat exchanger and a first valve connected in parallel, and the heat exchange device is used to adjust the temperature of the gas delivered on the high-pressure gas delivery branch; The flow regulating valve is used to adjust the flow of the gas delivered on the high-pressure gas delivery branch so as to adjust the proportion of fresh air in the mixing chamber to change the temperature in the mixing chamber.

4. The micro-pressure oxygen-enriched cabin regulating device according to claim 1, It is characterized in that The air supply temperature adjustment branch includes: a temperature adjustment device, a filtering and purification device, a fourth valve, a second temperature measuring instrument, and a second flow meter connected in series in sequence; The temperature control device includes a heating branch and a cooling branch connected in parallel; the heating branch includes a third valve and a heating device connected in series, and the cooling branch includes a second valve and a cooling device connected in series; the temperature control device cools the gas by closing the third valve, opening the second valve and the cooling device switch, or heats the gas by closing the second valve, opening the third valve and the heating device.

5. The micro-pressure oxygen-enriched cabin regulating device according to claim 1, It is characterized in that The sealed cabin includes: a third temperature measuring instrument, a second pressure measuring instrument, and an oxygen measuring instrument.

6. The micro-pressure oxygen-enriched cabin regulating device according to claims 1-5, It is characterized in that The proportion of fresh air in the mixing chamber is not less than 10%.

7. The micro-pressure oxygen-enriched cabin regulating device according to claims 1-6, It is characterized in that The temperature regulating device is used when the flow regulating valve is fully opened.

8. A control method using the micro-pressure oxygen-enriched cabin adjustment device according to claims 1-7, It is characterized in that The steps include: According to the data collected by the third temperature measuring instrument, the second pressure measuring instrument and the oxygen measuring instrument in the sealed cabin of the micro-pressure oxygen-enriched cabin regulating device, the gas temperature, air pressure and oxygen content in the sealed cabin are obtained; According to the data collected by the third temperature meter, the second pressure meter and the oxygen meter in the sealed cabin, the high-pressure gas delivery branch is controlled to deliver new air to the mixing chamber; Controlling the circulation pump to deliver the gas in the sealed cabin to the mixing chamber to mix with the gas in the high-pressure gas delivery branch; Controlling the air supply temperature regulating branch to adjust the temperature of the mixed gas in the mixing chamber and transport it to the sealed cabin, so as to keep the temperature, pressure and oxygen content of the gas in the sealed cabin within a preset value range; When the carbon dioxide concentration in the sealed cabin is too high, the exhaust branch is controlled to discharge the gas through the expansion valve to reduce pressure and temperature.

9. The control method of the micro-pressure oxygen-enriched chamber regulating device according to claim 8, It is characterized in that When the micro-pressure oxygen-enriched cabin regulating device is in the pressurization stage, the booster fan and the fourth valve are turned on, and the flow regulating valve is fully opened; When the temperature monitored by the third thermometer is lower than the preset first threshold, the first valve is opened; if the temperature monitored by the second thermometer is lower than the preset third threshold, the heating device is turned on; When the temperature monitored by the third thermometer is higher than a preset second threshold, the first valve is closed; if the temperature monitored by the second thermometer is higher than a preset fourth threshold, the refrigeration device is turned on.

10. The control method of the micro-pressure oxygen-enriched chamber regulating device according to claim 8, It is characterized in that When the micro-pressure oxygen-enriched cabin regulating device is in the pressure stabilization stage, the circulation pump and the fifth valve are turned on, and the flow regulating valve is adjusted to a smaller opening; When the oxygen concentration in the sealed cabin is lower than the fifth threshold, or the temperature monitored by the third thermometer is lower than the first threshold, or the temperature monitored by the third thermometer is higher than the second threshold, the flow regulating valve is increased and the opening of the fifth valve is increased.

11. The control method of the micro-pressure oxygen-enriched chamber regulating device according to claim 8, It is characterized in that If the temperature monitored by the third thermometer is lower than the first threshold value, and when the temperature monitored by the second thermometer is higher than the fourth threshold value, the first valve remains open and the flow control valve opening is reduced; if the temperature monitored by the second thermometer is still higher than the fourth threshold value, the first valve is closed; If the temperature monitored by the third thermometer is lower than the first threshold, and the temperature monitored by the second thermometer is between the third threshold and the fourth threshold, no action is required; If the temperature monitored by the third thermometer is lower than the first threshold, and when the temperature monitored by the second thermometer is lower than the third threshold, the first valve remains open and the flow regulating valve is increased; when the temperature monitored by the second thermometer is still lower than the third threshold, the heating device is turned on.

12. The control method of the micro-pressure oxygen-enriched chamber regulating device according to claim 8, It is characterized in that If the temperature monitored by the third thermometer is higher than the second threshold value, and the temperature monitored by the second thermometer is lower than the third threshold value, the first valve remains closed and the opening of the flow control valve is reduced; if the temperature monitored by the second thermometer is still lower than the third threshold value, the first valve is opened; If the temperature monitored by the third thermometer is higher than the second threshold, and the temperature monitored by the second thermometer is between the third threshold and the fourth threshold, no action is required; If the temperature monitored by the third thermometer is higher than the second threshold, and the temperature monitored by the second thermometer is higher than the fourth threshold, the first valve remains closed and the opening of the flow regulating valve is increased; when the temperature monitored by the second thermometer is still higher than the fourth threshold, the refrigeration device is turned on.

13. A micro-pressure oxygen-enriched cabin adjustment system, It is characterized in that It includes a data acquisition module and a control module and a micro-pressure oxygen-enriched cabin adjustment device as described in claims 1-7; A data acquisition module, connected to the micro-pressure oxygen-enriched cabin adjustment device, to acquire temperature, pressure and oxygen content data in the sealed cabin; The control module controls the micro-pressure oxygen-enriched cabin regulating device according to the acquired data of temperature, pressure and oxygen content in the sealed cabin, so as to keep the temperature, pressure and oxygen content of the gas in the sealed cabin within a preset value range.

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