Carbon dioxide absorber with drying function and breathing auxiliary equipment
By using a condensing box with a combination of semiconductor refrigeration module and baffle plate in the carbon dioxide absorber, the problem of accelerated absorption agent consumption due to high airflow humidity is solved, and the more efficient utilization of absorbents and the reduction of maintenance costs are achieved.
Patent Information
- Application Number
- CN202510119943.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-25
- Publication Date
- 2025-05-06
AI Technical Summary
The existing carbon dioxide absorbers have a high humidity in the exhaled airflow of patients, which leads to accelerated absorption agent consumption and increased maintenance costs.
The condensing box that combines a semiconductor refrigeration module and a baffle plate is used to reduce the airflow temperature through the refrigeration module, so as to condense the water vapor, thereby reducing the airflow humidity and reducing the consumption speed of the absorbent.
It improves the actual utilization rate of carbon dioxide absorbers, reduces the frequency of replacing the absorbers, and reduces the cost and workload of medical equipment maintenance.
Smart Images
Figure CN119925777A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of carbon dioxide absorbers, in particular to a carbon dioxide absorber with a drying function and a breathing assistance device. Background Art
[0002] The carbon dioxide absorber is widely used in the circulation absorption system of the anesthesia machine. Its main function is to absorb carbon dioxide and other acidic components in the patient's exhaled airflow, thereby ensuring that the airflow inhaled by the patient during surgery is safe and suitable for physiological needs. In the working principle of this device, the patient's exhaled airflow will be introduced into a closed circulation loop, and the carbon dioxide component will be removed from it through the carbon dioxide absorber before it is inhaled by the patient again.
[0003] However, in the actual operation of the carbon dioxide absorber, the airflow exhaled by the patient usually enters the absorption device directly without any pretreatment. Since the airflow exhaled by the patient usually carries a high amount of water vapor, this will cause the airflow entering the absorber to have a high humidity. The high-humidity airflow is prone to additional reactions with the absorbent inside the absorber, causing the following problems:
[0004] The reaction between water vapor and absorbent will increase the ineffective consumption of absorbent, reduce its actual utilization rate, accelerate its consumption rate, and lead to the need to replace carbon dioxide absorber more frequently, increasing the cost and workload of medical equipment maintenance.
[0005] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention
[0006] The present application provides a carbon dioxide absorber and a respiratory assistance device with a drying function, which can improve the actual utilization rate of the carbon dioxide absorbent.
[0007] To achieve the above objectives, the present application discloses the following technical solutions:
[0008] In the first aspect, an embodiment of the present application provides a carbon dioxide absorber with a drying function, including an absorber body and a condensation box, the absorber body having a first air inlet and a first air outlet; a semiconductor refrigeration module is arranged on the first side wall of the condensation box, and a plurality of first baffles are arranged in the condensation box, and at least a portion of the surface of each first baffle facing the first side wall is abutted against the cold end of the semiconductor refrigeration module, the output port of the condensation box is connected to the first air inlet, and an input port for airflow input is also arranged on the condensation box.
[0009] In the embodiment of the present application, the refrigeration function of the semiconductor refrigeration module is utilized to lower the temperature of the cold end. When the exhaled airflow of the patient carrying a high amount of water vapor contacts the baffle abutting the cold end, the water vapor in the airflow will condense into liquid water after reaching the dew point temperature due to the decrease in temperature, thereby separating the water vapor from the airflow, reducing the humidity of the airflow, and reducing the additional reaction of the water vapor with the absorbent inside the absorber. This can slow down the consumption rate of the absorbent, increase the actual utilization rate of the absorbent, reduce the replacement frequency of the carbon dioxide absorber, and reduce the cost and workload of medical equipment maintenance, effectively solving the technical problems of the existing carbon dioxide absorber such as accelerated absorbent consumption and increased maintenance costs due to high airflow humidity.
[0010] In addition, the setting of the first baffle ensures that the airflow does not simply pass through a straight line when flowing in the condensation box, but moves along the tortuous channel formed by the baffle, thereby increasing the contact area and contact time between the airflow and the cold end of the semiconductor refrigeration module and the baffle, thereby improving the dehumidification efficiency.
[0011] In some possible implementations of the first aspect, the first baffle is made of copper. Since copper has good thermal conductivity, the low temperature at the cold end of the semiconductor refrigeration module can be conducted more quickly and evenly through the first baffle, so that the overall temperature of the first baffle is easier to maintain at a lower level, so that the water vapor in the airflow contacting the baffle can be cooled and liquefied more efficiently, accelerating the condensation process of the water vapor, thereby improving the dehumidification efficiency.
[0012] In some possible embodiments of the first aspect, the carbon dioxide absorber with a drying function also includes a heat exchange component, the first air outlet is connected to the hot flow input interface of the heat exchange component, the output port of the condensation box is connected to the first air inlet through the heat exchange component, the output port of the condensation box is connected to the cold flow input interface of the heat exchange component through the first pipe, and the cold flow output interface of the heat exchange component is connected to the first air inlet through the second pipe.
[0013] Since the chemical reaction between carbon dioxide and the absorbent is an exothermic reaction (for example, calcium hydroxide absorbs carbon dioxide to generate calcium carbonate and water), heat will be released, which will increase the temperature of the airflow stripped of carbon dioxide. At the same time, the temperature of the airflow coming out of the output port of the adsorption drying box and ready to enter the absorber body is relatively low. In this way, after the heat exchange component is used to heat exchange the airflow stripped of carbon dioxide discharged from the first air outlet of the absorber body with the airflow ready to enter the absorber body, the temperature of the airflow ready to enter the absorber body will increase, so that the movement of the airflow molecules entering the absorber body can become more intense, thereby increasing the frequency of contact between carbon dioxide molecules and the absorbent and enhancing the reaction activity. In this way, the absorbent can absorb carbon dioxide more efficiently and fully, and the entire absorption process is smoother, which can improve the efficiency of the overall link from the entry of the airflow to the completion of carbon dioxide absorption, and improve the drying efficiency of the device.
[0014] In some possible implementations of the first aspect, a partition is provided in the condensation box, and the partition divides the condensation box into a first accommodation chamber and a second accommodation chamber, the first accommodation chamber is located above the second accommodation chamber, the semiconductor refrigeration module and the first baffle are both located in the first accommodation chamber, a plurality of through holes are provided on the partition, and the second accommodation chamber is used to hold condensed water; the carbon dioxide absorber with a drying function also includes a humidification component, a micro water pump of the humidification component and a humidification box, the input port of the micro water pump is connected to the inside of the second accommodation chamber through a third pipe; the output port of the micro water pump is connected to the water flow inlet of the humidification box through a fourth pipe, the heat flow output interface of the heat exchange component is connected to the air flow inlet on the humidification box through a fifth pipe, and the air outlet of the humidification box is connected to the outside through a sixth pipe. In this way, on the one hand, the recycling of water resources inside the device can be realized, and the overall utilization rate of resources can be improved; on the other hand, the dry airflow after the carbon dioxide is removed can be moistened, so that the airflow inhaled by the patient is more in line with the natural state of physiological breathing, so that the patient breathes more comfortably and naturally.
[0015] In some possible implementations of the first aspect, the carbon dioxide absorber with a drying function further includes: a first liquid level sensor, a second liquid level sensor and a controller, wherein the first liquid level sensor is arranged in the humidification box, and the second liquid level sensor is arranged in the second accommodation chamber; the controller is electrically connected to the first liquid level sensor, the second liquid level sensor and the micro water pump, and when the controller analyzes the liquid level information collected by the first liquid level sensor and the second liquid level sensor and finds that the water level in the humidification box is lower than the set first water level and the water level in the second accommodation chamber is higher than the set second water level, the micro water pump is controlled to start and extract condensed water from the second accommodation chamber; when the water level in the humidification box is higher than the set third water level, the micro water pump is controlled to shut down. In this way, the automatic control of the condensed water extraction and the water level of the humidification box in the humidification link is realized, the problem of poor humidification effect caused by factors such as untimely manual operation is avoided, and the stability and reliability of the operation of the entire device are improved.
[0016] In addition, the controller will control the micro water pump to start only when it is determined that the water level in the humidification box is lower than the set first water level and the water level in the second accommodation chamber is higher than the set second water level, which ensures that the micro water pump will start working only when there is enough condensed water available for extraction in the second accommodation chamber and the humidification box needs to be supplemented with condensed water. In this way, it is ensured that the micro water pump will not run dry, thereby extending the service life of the micro water pump, reducing the frequency of equipment repair and replacement, and reducing maintenance costs.
[0017] In some possible implementations of the first aspect, the bottom surface of the second accommodation chamber is inclined, which helps to collect condensed water more efficiently, improves the collection rate of condensed water, and facilitates extraction by the micro water pump.
[0018] In some possible implementations of the first aspect, the heat exchange component includes a shell and a heat exchange component, the shell is provided with a cold flow input interface, a cold flow output interface, a hot flow input interface and a hot flow output interface; the heat exchange component includes two parallel partitions, the two partitions are respectively fixedly connected to the two ends of the inner side of the shell, and the internal space of the shell is divided into a first chamber, a second chamber and a third chamber, the hot flow input interface and the hot flow output interface are both connected to the second chamber, the second chamber is located between the first chamber and the third chamber, and a plurality of second baffles are arranged in the second chamber; a plurality of heat exchange pipes passing through the two partitions are fixedly connected between the two partitions; one end of each heat exchange pipe is connected to the first chamber, and the other end is connected to the second chamber; the cold flow input interface is connected to the first chamber, and the cold flow output interface is connected to the third chamber. In this way, the liquid entering the first chamber from the cold flow input interface will not enter the second chamber, but enter the third chamber through the heat exchange pipe, and then flow out from the cold flow output interface.
[0019] For example, in Figure 3In the embodiment shown, the heat exchange pipe is a straight pipe. Of course, the present application is not limited thereto. In other embodiments, the heat exchange pipe may also be a serpentine pipe.
[0020] In some possible implementations of the first aspect, the heat flow input interface is located on the first side of the shell, the heat flow output interface is located on the second side of the shell, and the first side is arranged opposite to the second side. In this way, the flow of airflow in the heat exchange component can be optimized, thereby facilitating the improvement of the efficiency and stability of heat exchange.
[0021] In some possible implementations of the first aspect, the heat flow input interface is located at an edge of the second chamber close to the first chamber, so that when the hot air flow enters, the heat exchange process with the cold air flow can be started more quickly, thereby improving the efficiency of the heat exchange.
[0022] In a second aspect, an embodiment of the present application provides a breathing assistance device, comprising the carbon dioxide absorber described in any one of the first aspects above, wherein the carbon dioxide absorber is used to absorb carbon dioxide in the airflow before entering the breathing assistance device.
[0023] Since the breathing assistance device provided in the embodiment of the present application includes a carbon dioxide absorber with a drying function as described in any of the above technical solutions, the two can solve the same technical problems and achieve the same technical effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions. It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, for the sake of clarity and ease of understanding, the sizes of some features may be deformed.
[0025] Figure 1 A schematic diagram of the internal structure of a carbon dioxide absorber with a drying function provided in some embodiments of the present application;
[0026] Figure 2 for Figure 1 A schematic diagram of the internal structure of a condensation box in a carbon dioxide absorber with a drying function is shown;
[0027] Figure 3 for Figure 1 A schematic diagram of the structure of the heat interaction components in the carbon dioxide absorber with drying function is shown;
[0028] Figure 4 for Figure 1 The diagram shows the electrical connection relationship of the carbon dioxide absorber with drying function. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "horizontal", "inner", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.
[0031] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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; 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 elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] See also Figure 1 Combined with Figure 2 The embodiment of the present application provides a carbon dioxide absorber 100 with a drying function, including an absorber body 1 and a condensation box 2, the absorber body 1 having a first air inlet 11 and a first air outlet 12; a semiconductor refrigeration module 21 is arranged on the first side wall of the condensation box 2, and a plurality of first baffles 22 are arranged in the condensation box 2, and at least a portion of the surface of each first baffle 22 facing the first side wall is abutted against the cold end of the semiconductor refrigeration module 21, the output port of the condensation box 2 is connected to the first air inlet 11, and an input port for airflow input is also arranged on the condensation box 2, and the input port is connected to the respiratory assistance device through an air intake pipe 26.
[0033] It is understandable that the relative position relationship between the absorber body 1 and the condensation box 2 can be determined according to actual needs and is not limited here.
[0034] In this way, the refrigeration function of the semiconductor refrigeration module 21 can be utilized to lower the temperature of its cold end. When the exhaled airflow of the patient carrying a high amount of water vapor contacts the baffle abutting the cold end, the water vapor in the airflow will condense into liquid water after reaching the dew point temperature due to the decrease in temperature, thereby separating the water vapor from the airflow, reducing the humidity of the airflow, and reducing the additional reaction of the water vapor with the absorbent inside the absorber, thereby slowing down the consumption rate of the absorbent, improving the actual utilization rate of the absorbent, reducing the replacement frequency of the carbon dioxide absorber, and reducing the cost and workload of medical equipment maintenance, effectively solving the technical problems of the existing carbon dioxide absorber such as accelerated absorbent consumption and increased maintenance costs due to high airflow humidity.
[0035] In addition, the setting of the first baffle 22 ensures that the airflow does not simply pass through in a straight line when flowing in the condensation box 2, but moves along the tortuous channel formed by the baffle, thereby increasing the contact area and contact time between the airflow and the cold end of the semiconductor refrigeration module 21 and the baffle, thereby improving the dehumidification efficiency.
[0036] In some embodiments, the first baffle 22 is made of copper. Since copper has good thermal conductivity, the low temperature at the cold end of the semiconductor refrigeration module 21 can be conducted more quickly and evenly through the first baffle 22, so that the overall temperature of the first baffle 22 is easier to maintain at a lower level, so that the water vapor in the airflow in contact with the baffle can be cooled and liquefied more efficiently, accelerating the condensation process of the water vapor, thereby improving the dehumidification efficiency.
[0037] See also Figure 1 In some embodiments, the carbon dioxide absorber 100 with drying function further includes a heat exchange component 3, the first air outlet 12 is connected to the hot flow input interface 34 of the heat exchange component 3, the output port of the condensation box 2 is connected to the first air inlet 11 through the heat exchange component 3, the output port of the condensation box 2 is connected to the cold flow input interface 32 of the heat exchange component 3 through the first pipe 27, and the cold flow output interface 31 of the heat exchange component 3 is connected to the first air inlet 11 through the second pipe 311. It can be understood that the setting of the heat exchange component 3 is determined according to actual needs and is not limited here.
[0038] Since the chemical reaction between carbon dioxide and the absorbent is an exothermic reaction (for example, calcium hydroxide absorbs carbon dioxide to generate calcium carbonate and water), heat will be released, which will increase the temperature of the airflow stripped of carbon dioxide. At the same time, the temperature of the airflow coming out of the output port of the adsorption drying box and ready to enter the absorber body 1 is relatively low. In this way, after the airflow stripped of carbon dioxide discharged from the first air outlet 12 of the absorber body 1 is heat-exchanged with the airflow ready to enter the absorber body 1 through the heat exchange component 3, the temperature of the airflow ready to enter the absorber body 1 will increase, so that the movement of the airflow molecules entering the absorber body 1 can become more intense, thereby increasing the frequency of contact between carbon dioxide molecules and the absorbent and enhancing the reaction activity. In this way, the absorbent can absorb carbon dioxide more efficiently and fully, and the entire absorption process is smoother, thereby improving the efficiency of the overall link from the entry of the airflow to the completion of carbon dioxide absorption, and improving the drying efficiency of the device.
[0039] See also Figure 1 Combined with Figure 2 In some embodiments, a partition 23 is provided in the condensation box 2, and the partition 23 divides the condensation box 2 into a first accommodation chamber 24 and a second accommodation chamber 25. The first accommodation chamber 24 is located above the second accommodation chamber 25, and the semiconductor refrigeration module 21 and the first baffle 22 are both located in the first accommodation chamber 24. A plurality of through holes 231 are provided on the partition 23, and the second accommodation chamber 25 is used to hold condensed water; the carbon dioxide absorber 100 with a drying function also includes a humidification component 4, a micro water pump 41 of the humidification component 4 and a humidification box 42, the input port of the micro water pump 41 is connected to the interior of the second accommodation chamber 25 through a third pipe 411; the output port of the micro water pump 41 is connected to the water flow inlet of the humidification box 42 through a fourth pipe 412, the heat flow output interface 33 of the heat exchange component 3 is connected to the air flow inlet on the humidification box 42 through a fifth pipe 331, and the air outlet of the humidification box 42 is connected to the outside through a sixth pipe 421. In this way, on the one hand, the water resources inside the device can be recycled, improving the overall utilization rate of resources; on the other hand, the dry airflow after the carbon dioxide is removed can be moistened, so that the airflow inhaled by the patient is more in line with the natural state of physiological breathing, making the patient's breathing more comfortable and natural.
[0040] It is understandable that in other embodiments, the humidification box 42 may be pre-stored with purified water.
[0041] In some embodiments, the bottom surface of the second accommodation chamber 25 is inclined, which helps to collect condensed water more efficiently, improves the collection rate of condensed water, and facilitates extraction by the micro water pump 41.
[0042] See also Figure 4In some embodiments, the carbon dioxide absorber 100 with drying function further includes: a first liquid level sensor 5, a second liquid level sensor 6 and a controller 7, wherein the first liquid level sensor 5 is arranged in the humidifying box 42, and the second liquid level sensor 6 is arranged in the second accommodation chamber 25; the controller 7 is electrically connected with the first liquid level sensor 5, the second liquid level sensor 6 and the micro water pump 41, and when the controller 7 analyzes the liquid level information collected by the first liquid level sensor 5 and the second liquid level sensor 6 and finds that the water level in the humidifying box 42 is lower than the set first water level and the water level in the second accommodation chamber 25 is higher than the set second water level, the micro water pump 41 is controlled to start and extract condensed water from the second accommodation chamber 25; when the water level in the humidifying box 42 is higher than the set third water level, the micro water pump 41 is controlled to shut down. In this way, the automatic control of the condensed water extraction and the water level of the humidifying box 42 in the humidification link is realized, and the problem of poor humidification effect caused by factors such as untimely manual operation is avoided, and the stability and reliability of the operation of the entire device are improved.
[0043] In addition, only when it is determined that the water level in the humidifying box 42 is lower than the set first water level and the water level in the second accommodation chamber 25 is higher than the set second water level, the controller 7 will control the micro water pump 41 to start, which can ensure that the micro water pump 41 will start working only when there is enough condensed water available for extraction in the second accommodation chamber 25 and the humidifying box 42 needs to be supplemented with condensed water. In this way, it is ensured that the micro water pump 41 will not run dry, thereby extending the service life of the micro water pump 41, reducing the frequency of equipment maintenance and replacement, and reducing maintenance costs.
[0044] See also Figure 3 In some embodiments, the heat exchange component 3 includes a shell 35 and a heat exchange component 36, and the shell 35 is provided with a cold flow input interface 32, a cold flow output interface 31, a hot flow input interface 34 and a hot flow output interface 33; the heat exchange component 36 includes two parallel partition plates 361, and the two partition plates 361 are respectively fixedly connected to the two ends of the inner side of the shell 35, dividing the internal space of the shell 35 into a first chamber 351, a second chamber 352 and a third chamber 353, the hot flow input interface 34 and the hot flow output interface 33 are both connected to the second chamber 352, the second chamber 352 is located between the first chamber 351 and the third chamber 353, and a plurality of second baffles 362 are arranged in the second chamber 352; it can be understood that the second baffles 362 are fixedly connected to the inner wall surface of the second chamber 352, and the second baffles 362 are provided with avoidance holes for avoiding the heat exchange pipe 353. A number of heat exchange pipes 353 are fixedly connected between the two partition plates 361 and pass through the two partition plates 361; one end of each heat exchange pipe 353 is connected to the first chamber 351, and the other end is connected to the second chamber 352; the cold flow input interface 32 is connected to the first chamber 351, and the cold flow output interface 31 is connected to the third chamber 353.
[0045] See also Figure 3 In some embodiments, the heat flow input interface 34 is located on the first side of the housing 35, and the heat flow output interface 33 is located on the second side of the housing 35, and the first side is arranged opposite to the second side. In this way, the flow of air in the heat exchange component 3 can be optimized, which is conducive to improving the efficiency and stability of heat exchange.
[0046] See also Figure 3 In some embodiments, the heat flow input interface 34 is located at the edge of the second chamber 352 close to the third chamber 353. Of course, the present application is not limited thereto. In other embodiments, the heat flow input interface 34 is located at the edge of the second chamber 352 close to the first chamber 351. In this way, when the hot air flow enters, the heat exchange process with the cold air flow can be started more quickly, thereby improving the efficiency of the heat exchange.
[0047] In addition, an embodiment of the present application further provides a breathing assistance device, comprising any one of the aforementioned carbon dioxide absorbers 100, the carbon dioxide absorber 100 being used to absorb carbon dioxide in the airflow before entering the breathing assistance device.
[0048] The present invention and its embodiments are described above, and such description is not restrictive. What is shown in the full text is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.
Claims
1. A carbon dioxide absorber with drying function, characterized in that: include: an absorber body, the absorber body having a first air inlet and a first air outlet; A condensation box, wherein a semiconductor refrigeration module is arranged on the first side wall of the condensation box, and a plurality of first baffles are arranged in the condensation box, and at least a portion of the surface of each first baffle facing the first side wall is in contact with the cold end of the semiconductor refrigeration module, the output port of the condensation box is connected to the first air inlet, and the condensation box is also provided with an input port for airflow input.
2. The carbon dioxide absorber with drying function according to claim 1, characterized in that: The first baffle is made of copper.
3. The carbon dioxide absorber with drying function according to claim 1, characterized in that: It also includes a heat exchange component, the first air outlet is connected to the hot flow input interface of the heat exchange component, the output port of the condensation box is connected to the first air inlet through the heat exchange component, the output port of the condensation box is connected to the cold flow input interface of the heat exchange component through a first pipe, and the cold flow output interface of the heat exchange component is connected to the first air inlet through a second pipe.
4. The carbon dioxide absorber with drying function according to claim 3, characterized in that: A partition is provided in the condensation box, and the partition divides the condensation box into a first accommodation chamber and a second accommodation chamber, the first accommodation chamber is located above the second accommodation chamber, the semiconductor refrigeration module and the first baffle are both located in the first accommodation chamber, a plurality of through holes are provided on the partition, and the second accommodation chamber is used to hold condensed water; The carbon dioxide absorber with drying function also includes a humidification component, a micro water pump and a humidification box. The input port of the micro water pump is connected to the interior of the second accommodating chamber through a third pipe; the output port of the micro water pump is connected to the water flow inlet of the humidification box through a fourth pipe, the heat flow output interface of the heat exchange component is connected to the air flow inlet on the humidification box through a fifth pipe, and the air outlet of the humidification box is connected to the outside through a sixth pipe.
5. The carbon dioxide absorber with drying function according to claim 4, characterized in that: Also includes: a first liquid level sensor, the first liquid level sensor being disposed in the humidifying box, a second liquid level sensor, the second liquid level sensor being disposed in the second containing chamber; A controller, wherein the controller is electrically connected to the first liquid level sensor, the second liquid level sensor and the micro water pump. When the controller analyzes the liquid level information collected by the first liquid level sensor and the second liquid level sensor and finds that the water level in the humidifying box is lower than a set first water level and the water level in the second containing chamber is higher than a set second water level, the micro water pump is controlled to start and extract condensed water from the second containing chamber; when the water level in the humidifying box is higher than a set third water level, the micro water pump is controlled to shut down.
6. The carbon dioxide absorber with drying function according to claim 4, characterized in that: The bottom surface of the second accommodation chamber is inclined.
7. The carbon dioxide absorber with drying function according to claim 4, characterized in that: The heat exchange component comprises: A shell, on which the cold flow input interface, the cold flow output interface, the hot flow input interface and the hot flow output interface are arranged; A heat exchange component, the heat exchange component includes two parallel partition plates, the two partition plates are respectively fixedly connected to the two ends of the inner side of the shell, dividing the internal space of the shell into a first chamber, a second chamber and a third chamber, the heat flow input interface and the heat flow output interface are both connected to the second chamber, the second chamber is located between the first chamber and the third chamber, and a plurality of second baffles are arranged in the second chamber; a plurality of heat exchange pipes are fixedly connected between the two partition plates and pass through the two partition plates; one end of each heat exchange pipe is connected to the first chamber, and the other end is connected to the second chamber; the cold flow input interface is connected to the first chamber, and the cold flow output interface is connected to the third chamber.
8. The carbon dioxide absorber with drying function according to claim 7, characterized in that: The heat flow input interface is located at a first side of the shell, and the heat flow output interface is located at a second side of the shell. The first side is arranged opposite to the second side.
9. The carbon dioxide absorber with drying function according to claim 8, characterized in that: The heat flow input interface is located at an edge of the second chamber close to the first chamber.
10. A breathing assistance device, characterized in that: It comprises the carbon dioxide absorber according to any one of claims 1 to 9, wherein the carbon dioxide absorber is used to absorb carbon dioxide in the air flow before entering the breathing assistance device.