WO2021139198A1

WO2021139198A1 - Humidification tank

Info

Publication number: WO2021139198A1
Application number: PCT/CN2020/114226
Authority: WO
Inventors: 朱晶; 张佳; 郭建明; 乐志超; 杜文芝; 李鑫; 朱婷婷
Original assignee: 江苏鱼跃信息系统有限公司; 江苏鱼跃医疗设备股份有限公司; 南京鱼跃软件技术有限公司; 苏州医疗用品厂有限公司; 苏州鱼跃医疗科技有限公司
Priority date: 2020-01-08
Filing date: 2020-09-09
Publication date: 2021-07-15
Also published as: DE212020000541U1; CN111035839A

Abstract

A humidification tank, comprising a humidification tank main body (1), and an air inlet conduit (2) and an air outlet (3) which are provided on the humidification tank main body (1). The air inlet conduit comprises an air inlet end (21) and an air outlet end (22), the lower portion of the air inlet end (21) of the air inlet conduit (2) is higher than the lower portion of the air outlet end (22) in the horizontal direction, and the length of the air inlet conduit (2) is greater than or equal to half of the length of the humidification tank main body (1) in the air inlet conduit (2) direction or the length of the air inlet conduit (2) is greater than the shortest length from the air outlet (3) to the wall where the air inlet conduit (2) is located, so that a liquid in the humidification tank which is evaporated and condensed into water in the air inlet conduit (2) returns into the humidification tank by means of the inclination of the air inlet conduit (2). When the humidification tank tilts, the liquid does not enter the air inlet conduit (2); when the humidification tank is turned over, the length from the air outlet (3) to the wall where the air inlet conduit (2) is located is greater than the length of the air inlet conduit (2), and when the humidification tank is turned to a certain angle, the water first flows out through the air outlet (3), but does not enter the air inlet conduit (2), which also ensures that the liquid does not flow into a main computer of a respiratory therapy device, achieving a 360° anti-spill effect. The usage of a through-chamber can greatly reduce the airflow impedance and increase the airflow output efficiency.

Description

A kind of humidification tank

Technical field

The invention relates to a humidification tank for inhalable gas supply equipment, in particular to a humidification tank with anti-reverse flow function, belonging to the field of medical equipment.

Background technique

The equipment used for continuous positive airway pressure therapy usually includes a blower, the air outlet of which is connected to a mask via a breathing tube and then interacts with the patient with air. Under normal circumstances, the patient will feel more comfortable and accept the heated and humidified air. Therefore, the current existing ventilation treatment equipment is provided with a humidifier device.

Normally, the blower and the humidifier device are separate parts connected by a hose. The humidifier device is generally arranged between the air outlet of the blower and the patient interface, and usually includes a humidification tank and a heating device, and the humidification tank is provided with an air inlet connected to the air outlet of the blower, and an air outlet connected with the user interface. A certain amount of water is added to the humidification tank, and the air entering the humidification tank from the blower is in contact with the water and the heating system of the heating device to obtain humidity before entering the patient interface.

Some ventilation therapy equipment will connect the blower and humidifier together for the convenience of carrying. The air flows out from the air outlet of the blower and enters the humidification tank inlet of the humidifier device. After the air is humidified in the humidification tank, it flows out of the humidifier device outlet and enters the breathing circuit, and finally reaches the patient interface (such as the mask end). This design has a potential problem, namely, how to prevent the water in the device from flowing into the blower, not causing damage to the blower or even equipment damage when the humidifier device is tilted relative to its normal orientation. This is a difficult problem that needs to be further solved.

In the prior art, from the structural design, there are generally two methods to solve the overflow of water in the humidification tank back to the blower. One is to add an independent chamber to block the direct passage between the water and the blower outlet, as shown in Figure 1; The other is to increase the partition and lower the water level, so that the water level is much lower than the height of the air outlet of the blower, as shown in Figure 2. From the heating and humidification system, a passive enhanced humidification system is added, which includes heat and humidity exchange materials, heating plates, insulating plates, etc. All the above methods, in order to achieve the anti-overflow effect and humidity, not only have a complex structure and a large impedance, reduce the airflow output efficiency of the ventilation treatment equipment, but also greatly increase the power of heating and humidification. Therefore, how to design a low-impedance anti-overflow structure and a humidification tank that is convenient for users to clean and operate is a difficult problem in this field.

Summary of the invention

The present invention provides a humidification tank. The humidification tank is arranged through the structure of the air inlet, and the relative position of the air inlet and the air outlet is set to realize the 360° anti-overflow, thereby improving the user's use during use. The fault tolerance rate reduces the probability of damage to the respiratory therapy equipment.

A humidification tank includes a humidification tank body and an air inlet pipe and an air outlet provided on the humidification tank body. The air inlet pipe includes an air inlet end and an air outlet end, and the lower part of the air inlet end of the air inlet pipe is in a horizontal direction The upper part is higher than the lower part of the air outlet, the length of the air inlet pipe is greater than or equal to half of the length of the air inlet pipe of the main body of the humidification tank or the length of the air inlet pipe is greater than or equal to the shortest length from the air outlet to the wall where the air inlet pipe is located.

Preferably, the upper end surface of the air outlet end of the air inlet pipe is longer than or equal to the lower end surface in the horizontal direction.

Preferably, the air outlet end of the intake pipe is further provided with an anti-reverse device, and the anti-reverse device is a water baffle provided at the air outlet end.

Preferably, a drainage device is provided on the wall of the intake pipe.

Preferably, the drainage device includes a drainage groove, the drainage grooves are multiple, and the depths of the multiple drainage grooves are different.

Preferably, the drainage device includes drainage ribs, the drainage ribs are multiple, and the heights of the multiple drainage ribs are different.

Preferably, the drainage device includes a drainage groove and a drainage rib, and the drainage rib is arranged at the air outlet end of the intake pipe.

Preferably, the lower end surface of the air inlet pipe is arranged obliquely downward from the air inlet end to the air outlet end, and the included angle with the horizontal direction is greater than or equal to 3°.

Preferably, the main body of the humidification tank is provided with an airflow guide table at the air inlet end of the air inlet pipe.

Preferably, the humidification tank body is provided with a groove at the air outlet, the air outlet is arranged in the groove, a water storage area is formed between the groove and the humidification tank body, and the humidification tank body A drain hole is also provided on the drain hole, a sealing rubber plug is detachably provided in the drain hole, and the drain hole is arranged on the side wall of the water storage area of the main body of the humidification tank.

Preferably, the humidification tank further includes a humidification tank cover, the air outlet is arranged on the humidification tank cover, and the humidification tank cover is detachably connected to the humidification tank body and maintains the humidification tank cover during use It is sealed with the main body of the humidification tank.

Preferably, the humidification tank cover includes a cover body and a cover body sealing member arranged around the cover body, and the cover body sealing member is connected with the humidification tank main body and keeps the humidification tank sealed.

Preferably, the air outlet further includes a diaphragm arranged in an inner ring of the air outlet, the diaphragm includes one or more diaphragms, and the diaphragm is fixedly connected to the inner ring of the air outlet. The flap can be folded along the inner circle of the air outlet.

Preferably, the humidification tank main body includes a first humidification tank main body and a second humidification tank main body, and the first humidification tank main body and the second humidification tank main body are hermetically connected.

Preferably, the humidification tank body is further provided with a heat-conducting element, the connection between the humidification tank body and the heat-conducting element is hollow, and a waterproof sealing ring is also provided between the humidification tank body and the heat-conducting element.

In the humidification tank provided by the present invention, the lower part of the inlet end of the inlet pipe is higher than the lower part of the outlet end in the horizontal direction, so that the liquid in the humidification tank evaporates and condenses in the inlet pipe and can flow back through the inclined arrangement of the inlet pipe Into the humidification tank, it will not flow into the main body of the respiratory treatment equipment, causing failure of the main body of the respiratory treatment equipment. At the same time, the length of the inlet pipe is greater than or equal to half of the length of the main body of the humidification tank in the direction of the inlet pipe or the length of the inlet pipe is longer than the outlet to the inlet pipe. The shortest length of the wall. When the liquid in the humidification tank is tilted, it will not enter the intake pipe. When it is overturned, because the length of the wall from the air outlet to the intake pipe is less than or equal to the length of the intake pipe, the water will flow after turning to a certain angle. It preferentially flows out through the air outlet and will not flow out through the air inlet pipe, which also ensures that the liquid will not flow into the main body of the respiratory therapy equipment, thus achieving 360° anti-overflow. At the same time, the humidification tank of the present invention adopts a through chamber, which can greatly reduce the airflow resistance and improve the airflow output efficiency.

Description of the drawings

Figure 1 is a schematic diagram of an independent chamber humidification tank in the prior art;

Figure 2 is a schematic diagram of a humidification tank with a partition and a lower water level in the prior art;

Figure 3 is a schematic structural diagram of Embodiment 1 of the present invention;

Figure 4 is a cross-sectional view of an embodiment of the present invention;

Figure 5 is a cross-sectional view of the second embodiment of the present invention;

Figure 6 is a cross-sectional view of the third embodiment of the present invention;

Figure 7 is a cross-sectional view of the fourth embodiment of the present invention;

Figure 8 is a cross-sectional view of the fifth embodiment of the present invention;

9 is a schematic diagram of the angle structure of the intake pipe of the sixth embodiment of the present invention;

10 is a schematic diagram of the length structure of the intake pipe according to the seventh embodiment of the present invention;

11 is a schematic diagram of the groove structure of the eighth embodiment of the present invention;

12 is a schematic cross-sectional view of the groove structure of the eighth embodiment of the present invention;

13 is a schematic diagram of the structure of the lid of the humidification tank according to the ninth embodiment of the present invention;

14 is a schematic diagram of the structure of a heat conducting element according to the tenth embodiment of the present invention;

15 is a schematic diagram of the structure of the anti-reversal device of the intake pipe in the eleventh embodiment of the present invention;

16 is a schematic structural diagram of an intake pipe drainage device according to the twelfth embodiment of the present invention;

17 is a schematic diagram of the structure of the intake pipe drainage device in the thirteenth embodiment of the present invention;

18 is a schematic diagram of the structure of the intake pipe drainage device according to the fourteenth embodiment of the present invention;

19 is a schematic diagram of the structure of the gas drainage platform of the intake pipe according to the fifteenth embodiment of the present invention;

Figure 20 is a schematic diagram of the position of the sixteenth diaphragm of the embodiment of the present invention

21 is a schematic diagram of the structure of the diaphragm of the sixteenth embodiment of the present invention;

Figure 22 is an exploded schematic diagram of the structure of the seventeenth embodiment of the present invention

FIG. 23 is an exploded schematic diagram of the structure of the eighteenth embodiment of the present invention;

24 is an exploded schematic diagram of the structure of the nineteenth embodiment of the present invention;

Figure 25 is a pressure loss curve diagram of the humidification tank device of the present invention and the conventional humidification tank at different flow rates

Figure 26 is a schematic diagram of the humidification tank of the present invention in the assembled state with the respiratory therapy device;

Figure 27 is a schematic diagram of the humidification tank of the present invention in the assembled state with the respiratory therapy device;

List of reference signs:

1-Humidification tank body, 2-inlet pipe, 21-inlet end, 22-outlet end, 221-upper end, 222-lower end, 223-anti-reversal device, 23-drainage device, 231-drainage rib, 232 -Drainage groove, 212- air flow drainage table, 3- air outlet, 4- humidification tank cover, 41- cover body, 42- cover body seal, 5- groove, 51- water storage area, 31- diaphragm, 311-first flap, 312-second flap, 313-third flap, 314-fourth flap, 11-first humidification tank main body, 12-second humidification tank main body, 6-heat conduction element , 61-waterproof sealing ring, 7-drainage hole, 71-sealing rubber plug, 8-outlet elbow.

Detailed ways

In the following, the present invention will be further clarified with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various aspects of the present invention. Modifications in equivalent forms fall within the scope defined by the appended claims of this application.

In order to make the drawings concise, the drawings only schematically show the parts related to the present invention, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is schematically shown, or only one of them is marked. In this article, "a" not only means "only this one", but can also mean "more than one".

Example one:

Figure 3-4 is a schematic structural diagram of the first embodiment of the humidification tank of the present invention. A humidification tank includes a humidification tank main body 1, and the humidification tank main body 1 includes an accommodating cavity for holding To release the humidified liquid, the humidification tank main body 1 also includes an air outlet 3 arranged on the top wall of the accommodating cavity 1 and an air inlet pipe 2 arranged on a side wall of the accommodating cavity. The air inlet pipe 2 has one The inlet end 21 and an outlet end 22. The lower part of the inlet end 21 is higher than the lower part of the outlet end 22 in the horizontal direction, so that the inlet pipe 2 is in a downward trend in the humidification tank body 1. The length of the inlet pipe 2 It is greater than or equal to half of the length of the air inlet pipe 2 of the humidification tank body 1, that is, the outlet end 22 of the inlet pipe 2 is in the middle position of the humidification tank body 1, the outlet 3 is arranged at the upper part of the outlet end 22, and the length of the inlet pipe 2 is equal to The length from the outlet 3 to the wall where the inlet pipe 2 is located.

Embodiment two:

Figure 5 is a schematic structural diagram of the second embodiment of the humidification tank of the present invention. A humidification tank includes a humidification tank main body 1, and the humidification tank main body 1 includes a housing cavity for holding wet The main body 1 of the humidification tank 1 also includes an air outlet 3 arranged on the top wall of the accommodating cavity 1 and an air inlet pipe 2 arranged on a side wall of the accommodating cavity. The air inlet pipe 2 has an air inlet The lower part of the inlet end 21 is higher than the lower part of the outlet end 22 in the horizontal direction, so that the inlet pipe 2 is in a downward trend in the humidification tank body 1, and the length of the inlet pipe 2 is greater than or equal to Half of the length of the air inlet pipe 2 of the humidification tank body 1, that is, the outlet end 22 of the inlet pipe 2 is in the middle position of the humidification tank body 1, and the air outlet 3 is set above the body of the inlet pipe 2, that is, the length of the inlet pipe 2 It is greater than the length from the outlet 3 to the wall where the inlet pipe 2 is located.

Embodiment three:

Fig. 6 is a schematic structural diagram of the third embodiment of the humidification tank of the present invention. A humidification tank includes a humidification tank main body 1, and the humidification tank main body 1 includes a housing cavity for holding wet The main body 1 of the humidification tank 1 also includes an air outlet 3 arranged on the top wall of the accommodating cavity 1 and an air inlet pipe 2 arranged on a side wall of the accommodating cavity. The air inlet pipe 2 has an air inlet The lower part of the inlet end 21 is higher than the lower part of the outlet end 22 in the horizontal direction, so that the inlet pipe 2 is in a downward trend in the humidification tank body 1, and the length of the inlet pipe 2 is greater than or equal to Half of the length of the air inlet pipe 2 of the humidification tank body 1, that is, the outlet end 22 of the inlet pipe 2 is in the middle position of the humidification tank body 1, and the outlet 3 is arranged on the side of the wall away from the inlet pipe 2, that is, when the inlet pipe When the length of 2 is greater than or equal to half of the humidification tank body 1, the length from the air outlet 3 to the wall where the air inlet pipe 2 is located may be greater than the length of the air inlet pipe 2.

Embodiment four:

Fig. 7 is a schematic structural diagram of the fourth embodiment of the humidification tank of the present invention. A humidification tank includes a humidification tank main body 1, and the humidification tank main body 1 includes a housing cavity for holding wet The main body 1 of the humidification tank 1 also includes an air outlet 3 arranged on the top wall of the accommodating cavity 1 and an air inlet pipe 2 arranged on a side wall of the accommodating cavity. The air inlet pipe 2 has an air inlet The lower part of the air inlet 21 is higher than the lower part of the air outlet 22 in the horizontal direction, so that the air inlet pipe 2 is in a downward trend in the humidification tank body 1, and the air outlet 3 is set close to the inlet On one side of the wall where the air pipe 2 is located, the length of the air inlet pipe 2 is greater than the length from the air outlet 3 to the wall where the air inlet pipe 2 is located.

Embodiment five:

Fig. 8 is a schematic structural view of the fifth embodiment of the humidification tank of the present invention. A humidification tank includes a humidification tank main body 1, and the humidification tank main body 1 includes a housing cavity for holding wet The main body 1 of the humidification tank 1 also includes an air outlet 3 arranged on the top wall of the accommodating cavity 1 and an air inlet pipe 2 arranged on a side wall of the accommodating cavity. The air inlet pipe 2 has an air inlet The lower part of the air inlet 21 is higher than the lower part of the air outlet 22 in the horizontal direction, so that the air inlet pipe 2 is in a downward trend in the humidification tank body 1, and the length of the air inlet pipe 2 is longer than that of humidification. Half of the tank body 1 and the air outlet 3 are arranged on the wall of the air inlet pipe 2.

In the above five embodiments, the gas provided by the respiratory treatment device enters the humidification tank main body 1 from the air intake pipe 2, and the air flow rate drives the liquid in the humidification tank main body 1, thereby increasing the humidity of the air, and then passes through the air outlet 3 Reach the user end to achieve the purpose of humidifying the gas of the respiratory treatment equipment.

The lower part of the inlet end 21 of the inlet pipe 2 is higher in the horizontal direction than the lower part of the outlet end, so that the liquid in the humidification tank evaporates and condenses in the inlet pipe 2 to return to humidification through the inclined setting of the inlet pipe 2 In the tank body 1, it will not flow into the main body of the respiratory treatment equipment and cause the main body of the respiratory treatment equipment to malfunction. At the same time, the length of the air inlet pipe 2 is greater than or equal to half of the length of the air inlet pipe 2 of the humidification tank body 1 or the length of the air inlet pipe 2 is greater than the air outlet 3 To the shortest length of the wall where the inlet pipe 2 is located, when the liquid in the humidification tank body 1 is tilted, it will not enter the inlet pipe 2. When it is overturned, the length from the outlet 3 to the wall where the inlet pipe 2 is located is less than or equal to the inlet pipe 2. After turning to a certain angle, the water flow will preferentially flow out through the air outlet 3 and will not flow out through the air inlet pipe 2, which also ensures that the liquid will not flow into the main body of the respiratory therapy equipment, thus achieving 360° overflow prevention. At the same time, the humidification tank main body 1 of the present invention adopts a through chamber, which can greatly reduce the airflow resistance and improve the airflow output efficiency.

Embodiment 6:

Improvements are made on the basis of any of the first to fifth embodiments. As shown in Figure 9, the angle between the air inlet pipe 2 and the horizontal direction is greater than or equal to 3°, and the condensed water in the air inlet pipe 2 better flows into the humidification tank. The main body 1 does not flow into the main body of the respiratory treatment equipment.

Embodiment Seven:

Improvements are made on the basis of any of the first to fifth embodiments. As shown in FIG. 10, the outlet end 22 of the intake pipe 2 is in the horizontal direction, and the upper end face 221 is longer than or equal to the lower end face 222, and the lower end face of the intake pipe 2 222 is shorter than the upper end surface 221. When the humidification tank body 1 is added with water, water cannot easily enter the air inlet pipe 2.

Embodiment 8:

Improvements are made on the basis of any one of the first to fifth embodiments. As shown in FIGS. 11-12, the humidification tank main body 1 is provided with a groove 5 at the air outlet 2, and the air outlet 3 is arranged in the groove 5. The groove 5 is arranged inside the humidification tank body 1. The steps of the groove 5 and the surface of the humidification tank body 1 form a water storage area 51. In the extreme case, the humidification tank body 1 is turned upside down and the humidification tank body A small amount of water exists in 1, and a small amount of water will exist in the water storage area 51, and will not directly flow out from the air outlet 3, and at the same time, it will not flow out from the intake pipe 2. Therefore, in the extreme case, the humidification tank structure The safety of the machine can still be guaranteed. In a better situation, the groove 5 is a U-shaped groove, and the U-shaped groove can be matched with the air outlet elbow 8 at the host end to fix the host and the humidification tank. Due to the existence of the groove 5, in some cases where the liquid in the main body of the humidification tank needs to be completely drained, the water is not easy to drain. Therefore, the main body 1 of the humidification tank is also provided with a drain hole 7, and the drain hole 7 is detachably provided There is a sealing rubber plug 71, and the drainage hole 7 is set on the side wall of the water storage area 51. During normal use, the sealing rubber plug 71 can ensure the tightness of the humidification tank. When drainage is needed, take the sealing rubber plug 71 away. Next, turn the humidification tank body 1 upside down, and the liquid will be discharged through the drain hole 7. Solve the problem of liquid storage in the humidification tank under extreme conditions and prevent backflow.

Example 9:

Improvements are made on the basis of any one of the first to five embodiments. As shown in FIG. 13, the humidification tank further includes a humidification tank cover 4, the air outlet 3 is provided on the humidification tank cover 4, and the humidification tank cover 4 It is detachably connected with the humidification tank main body 1 and keeps the humidification tank cover 4 and the humidification tank main body 1 sealed during use. The humidification tank cover 4 includes a cover body 41 and a cover body seal 42 provided around the cover body 41, and the cover body seal 42 is connected to the humidification tank body 1 and keeps the humidification tank sealed. Through the humidification tank cover 4, the opening of the humidification tank can be increased. The humidification tank cover 4 and the humidification tank body 1 are detachably connected. When the user needs to add water and needs to clean the humidification tank, the large opening can facilitate the operation of adding water , And cleaning operation, so that the humidification tank can be used repeatedly and reduce the use cost. [0074]

Embodiment ten:

Improvements are made on the basis of any one of the first to fifth embodiments. As shown in FIG. 14, the humidification tank body 1 is also provided with a heat-conducting element 6. The connection between the humidification tank body 1 and the heat-conducting element 6 is hollowed out. A waterproof sealing ring 61 is also provided between the chemical tank main body 1 and the heat conducting element 6. The heating component of the respiratory treatment equipment heats the heat conducting element 6 to increase the volatilization of the liquid in the humidification tank body 1, thereby increasing the humidification treatment effect of the respiratory treatment equipment. At the same time, heating can increase the gas temperature of the respiratory treatment equipment and increase User experience.

Embodiment 11:

Improvements are made on the basis of any of the first to fifth embodiments. As shown in FIG. 15, the air outlet 22 is further provided with an anti-reversal device 223, and the anti-reversal device 223 is a water baffle provided at the air outlet 22. Because water has certain tension and adhesion, in the process of adding water to the humidification tank, the water may flow along the upper edge of the humidification tank intake pipe to the intake pipe 2. Therefore, by setting the water baffle, you can add water During the process, water is effectively prevented from overflowing through the intake pipe 2, thereby protecting the respiratory treatment equipment.

Embodiment 12:

Improvements are made on the basis of any one of the first to fifth embodiments. As shown in FIG. 16, a drainage device 23 is provided on the wall of the intake pipe 2. The drainage device 23 is a drainage groove 232, and there are multiple drainage grooves 232. , The width and depth of the multiple drainage grooves 232 are different. Through the drainage groove 232, in the process of adding water, the water poured on the wall of the intake pipe 2 is directly led to the bottom of the intake pipe 2 so as not to follow The inclination of the intake pipe 2 flows to the outlet end 22 of the intake pipe 2, preventing the water flow from flowing into the respiratory treatment equipment along the outlet end 22 of the intake pipe 2 during the water filling process to protect the respiratory treatment equipment. Multiple drainage grooves 232 can solve the water flow If it is too large, the water flow can still pass through a single drainage groove 232. The width and depth of the drainage groove 232 are different, which can cope with liquids of different tensions, making the scope of use more extensive.

Embodiment 13:

Improvements are made on the basis of any one of the first to fifth embodiments. As shown in FIG. 17, a drainage device 23 is provided on the wall of the intake pipe 2. The drainage device 23 is a drainage rib 231, and there are a plurality of drainage ribs 231. The width and height of the multiple drainage ribs 231 are different. The drainage ribs 231 are arranged protrudingly on the wall of the intake pipe 2 so that during the process of adding water, the water flows along the pipe wall of the intake pipe 2 along the intake pipe 2. The slope of φ flows toward the outlet end of the intake pipe 2, but after encountering the drainage ribs 231, the water flows directly downwards. The drainage ribs 231 play two roles. One is to guide the water flow directly downward, and the other is to prevent the water flow from flowing to the outlet end 22. , So as to prevent the water flow from entering the main body of the respiratory treatment equipment through the air inlet pipe 2 to protect the main body.

Embodiment Fourteen:

Improvements are made on the basis of any of the first to fifth embodiments. As shown in FIG. 18, a drainage device 23 is provided on the wall of the intake pipe 2. The drainage device 23 includes a drainage rib 231 and a drainage groove 232. The drainage rib 231 is arranged at the outlet end 22 of the intake pipe 2, and the drainage groove 232 is arranged on the pipe wall of the intake pipe 2. The drainage groove 232 can guide the water flow directly downward, and the drainage rib 231 can be at the outlet end 22 to block the water flow from passing the drainage rib. 231. Flow to the air outlet 22, so as to prevent water from entering the main body of the respiratory treatment equipment through the air inlet pipe 2 to protect the main body.

Embodiment 15:

Improvements are made on the basis of any one of the first to fifth embodiments. As shown in FIG. 19, the humidification tank body 1 is provided with an airflow guide 212 at the intake end 21 of the intake pipe 2, because the intake pipe 2 is directed toward The water storage space of the humidification tank must be lower than the lowest point of the air outlet 22 of the air inlet pipe 2. Therefore, in order to increase the water storage space of the humidification tank, it is necessary to install the air inlet pipe 2 in the upper part of the humidification tank. At the same time, the air intake pipe 2 is set in an oblate shape, which can increase the water storage space of the humidification tank at the maximum capacity. For respiratory therapy equipment, the airway of the fan is relatively fixed, and the air outlet of the host is generally set in the middle position. , Through the airflow guide table 212, the situation that the air outlet of the main engine does not correspond to the air inlet of the humidification tank can be solved well.

Embodiment Sixteen:

Improvements are made on the basis of any of the first to fifth embodiments. As shown in Figures 20-21, the humidification tank further includes a diaphragm 31 arranged in the air outlet 3. The diaphragm 31 includes four diaphragms. A membrane flap 311, a second membrane flap 312, a third membrane flap 313 and a fourth membrane flap 314 are fixedly connected to the inner circle of the air outlet 3, and the membrane flap can be folded along the inner circle of the air outlet 3. When the user is in use, the user-side air outlet elbow 8 can be inserted into the air outlet 3. The air outlet elbow 8 turns the flap of the air outlet 3 and opens the gas passage. When the air outlet elbow 8 is pulled out, the diaphragm returns to In situ, to prevent foreign objects from falling, and to give users certain instructions for use, it is not suitable to add water when the diaphragm is sealed.

Embodiment Seventeen:

Improvements are made on the basis of any one of the first to five embodiments. As shown in FIG. 22, the humidification tank body 1 includes a first humidification tank body 11 and a second humidification tank body 12, and the first humidification tank body 11 is connected to the second humidification tank body 12 in a sealed manner, the first humidification tank body 11 is the lower humidification tank body, the second humidification tank body 12 is the upper humidification tank body, the upper humidification tank body and the lower humidification tank The main body is sealed and fixed by means of ultrasonic welding, glue, etc. By adopting the spliced humidification tank main body, the mold processing can be more convenient, and the processing cost can be saved.

Embodiment 18:

Improvements are made on the basis of any one of the first to five embodiments. As shown in FIG. 23, the humidification tank body 1 includes a first humidification tank body 11 and a second humidification tank body 12, and the first humidification tank body 11 is connected with the second humidification tank body 12, the first humidification tank body 11 is the left humidification tank body, the second humidification tank body 12 is the right humidification tank body, the left humidification tank body and the right humidification tank The main body is sealed and fixed by means of ultrasonic welding, glue, etc. By adopting the spliced humidification tank main body, the mold processing can be more convenient, and the processing cost can be saved.

Example Nineteen:

Improvements are made on the basis of any one of the first to five embodiments. As shown in FIG. 24, the humidification tank body 1 includes a first humidification tank body 11 and a second humidification tank body 12, and the first humidification tank body 11 is connected to the second humidification tank body 12 in a sealed manner. The first humidification tank body 11 is the main body part of the humidification tank, and the second humidification tank body 12 is an end cover. The main part and the end cover of the humidification tank are welded by ultrasonic and glue. Seal and fix by other means. By adopting the spliced humidification tank main body, the mold processing can be more convenient, and the processing cost can be saved. In this way, defects and water leakage in the splicing process of the humidification tank body can be avoided, and the end cover is outside the respiratory treatment equipment. Even if a water leak occurs, it will not affect the main body of the respiratory treatment equipment.

Figure 25 is a pressure loss curve diagram of the humidification tank device of the present invention and the conventional humidification tank at different flow rates. It can be seen from the figure that the pressure loss curve of the present invention is significantly better than the prior art humidification tank.

Figures 26-27 are schematic diagrams of assembling the humidification tank and the respiratory treatment equipment of the present invention.

The foregoing descriptions are only preferred embodiments of the present invention, and do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

A humidification tank includes a humidification tank main body and an air inlet pipe and an air outlet provided on the humidification tank main body. The air inlet pipe includes an air inlet end and an air outlet end, and is characterized in that: The lower part is higher than the lower part of the air outlet in the horizontal direction, the length of the air inlet pipe is greater than or equal to half of the length of the air inlet pipe of the humidification tank main body or the length of the air inlet pipe is greater than or equal to the shortest length from the air outlet to the wall where the air inlet pipe is located.
The humidification tank according to claim 1, wherein the upper end surface of the air outlet end of the air inlet pipe is longer than or equal to the lower end surface in the horizontal direction.
The humidification tank according to claim 1, wherein the humidification tank body is provided with a groove at the air outlet, the air outlet is arranged in the groove, and the groove and the humidification tank body are different from each other. A water storage area is formed between the main body of the humidification tank, a drainage hole is further provided in the main body of the humidification tank, and a sealing rubber plug is detachably provided in the drainage hole, and the drainage hole is arranged on the side wall of the water storage area of the main body of the humidification tank .
The humidification tank according to claim 1, wherein the air outlet end of the intake pipe is provided with an anti-reverse device, the anti-reverse device is a water baffle provided at the air outlet end, and the pipe wall of the intake pipe A drainage device is provided, and the drainage device includes a drainage groove and or a drainage rib. There are multiple drainage ribs or drainage grooves, the heights of the multiple drainage ribs are different, and the depth and width of the drainage grooves are different.
The humidification tank according to claim 1, wherein the lower end surface of the air inlet pipe is arranged obliquely downward from the air inlet end to the air outlet end, and the included angle with the horizontal direction is greater than or equal to 3°.
The humidification tank according to claim 1, wherein the main body of the humidification tank is provided with an airflow drainage platform at the air inlet end of the air inlet pipe.
The humidification tank according to claim 1, wherein the humidification tank further comprises a humidification tank cover, the air outlet is arranged on the humidification tank cover, and the humidification tank cover is connected to the main body of the humidification tank. Removably connect and keep the humidification tank cover and the humidification tank body sealed during use. The humidification tank cover includes a cover body and a cover body sealing member arranged around the cover body, the cover body sealing member and the humidification tank The main body is connected and keeps the humidification tank sealed.
The humidification tank according to claim 1, wherein the air outlet further comprises a diaphragm arranged in the air outlet, the diaphragm includes one or more diaphragms, and the diaphragm is fixedly connected to the On the inner circle of the air outlet, the membrane flap can be folded along the inner circle of the air outlet.
The humidification tank according to claim 1, wherein the humidification tank main body includes a first humidification tank main body and a second humidification tank main body, the first humidification tank main body and the second humidification tank main body The main body is hermetically connected.
The humidification tank according to claim 1, wherein the humidification tank body is further provided with a heat-conducting element, the connection between the humidification tank body and the heat-conducting element is hollow, and the humidification tank body is connected to the heat-conducting element. A waterproof sealing ring is also arranged between the elements.