Negative-pressure liquid inlet atomization treatment equipment and control method

Abstract

The invention discloses nebulization treatment equipment with negative pressure liquid inlet and a control method, and the nebulization treatment equipment comprises a liquid storage tank which comprises a cylinder body, a heating disc, a controllable liquid inlet channel and a controllable liquid outlet channel; the output assembly comprises a piston and a driving assembly, the piston enters from the top of the barrel, a first sealing piece is arranged at the top of the barrel, and the piston is in sliding fit with the first sealing piece; the functional assembly comprises an emptying passage and an air pump, and the emptying passage is communicated with the upper space of the barrel; in the liquid inlet process, the atomization treatment equipment retreats from the cylinder body and / or the functional assembly works through the piston so as to realize negative pressure liquid inlet in the liquid storage tank; in the emptying process, the atomization treatment equipment enters the barrel body and / or the functional assembly through the piston to work so as to achieve emptying in the liquid storage tank. According to the technical scheme, through structural optimization, the problems of working medium temperature control and emptying procedures are effectively solved, and a structural basis is provided for flexibly controlling the temperature of the working medium and improving atomization adaptability.

Description

Technical Field

[0001] The present application relates to the field of medical equipment, and in particular to a negative pressure liquid inlet atomization treatment equipment and a control method. Background Art

[0002] Nebulizer therapy can be used clinically for inhalation therapy and ablation therapy. Inhalation therapy generally uses a nebulizer to disperse the drug into tiny droplets or particles, suspend it in the gas, and enter the respiratory tract and lungs to treat the lesions. Ablation therapy generally achieves ablation by heating the working medium to a predetermined temperature to generate thermal energy transfer to the lesions. In terms of atomization methods, the following methods are basically used: a. High-speed gas is mixed with liquid, and the continuity of the liquid is interrupted by high-speed gas to form atomized droplets; b. Ultrasonic atomization, through the high-speed vibration of the ultrasonic plate, the liquid is shattered to produce tiny particles; c. Direct atomization, through centrifugation / pressurization, the liquid is moved at high speed, thereby breaking the continuity and forming small droplets.

[0003] The atomization of common ablation treatments is generally achieved by heating until it exceeds or approaches the boiling point of the working medium. The inventors have found that the atomization temperature close to the boiling point has a large limit, and there is a large amount of heat energy transferred to the lesion, which is not conducive to the working medium loading of drugs. The pipeline is difficult to empty, the heat loss is large, the requirements for consumables are high, and the adaptability to diseases is low. Many problems have restricted the development of atomization treatment. Summary of the invention

[0004] In order to solve the above technical problems, the present application discloses a negative pressure liquid inlet atomization treatment device, comprising:

[0005] A liquid storage tank, the liquid storage tank is used to contain the working medium and comprises a vertically arranged cylinder and a heating plate sealing the bottom of the cylinder, the liquid storage tank comprises a controllable liquid inlet passage and a liquid outlet passage, wherein at least the liquid outlet passage is connected to the bottom space of the cylinder via the heating plate;

[0006] An output assembly, comprising a piston slidably disposed in the cylinder of the liquid storage tank and a driving assembly for driving the piston to move, wherein the piston enters through the top of the cylinder, a first sealing member is disposed on the top of the cylinder, and the piston slidably cooperates with the first sealing member; the piston has a standby position for exiting the cylinder and a relative working stroke, and in the working stroke, the piston occupies the space in the cylinder to realize pressurization of the working medium;

[0007] A functional component, comprising a controllable emptying passage and an air pump connected to the emptying passage, wherein the emptying passage is connected to the upper space of the cylinder;

[0008] During the liquid inlet process, the atomization treatment device operates by withdrawing the piston from the cylinder and / or the functional component to achieve negative pressure liquid inlet in the liquid storage tank;

[0009] During the emptying process, the atomization treatment device enters the cylinder and / or the functional component through the piston to work to achieve the emptying of the liquid storage tank.

[0010] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0011] Optionally, the cylinder of the liquid storage tank is a cylindrical body which is open at the top and the bottom, the piston enters the interior of the cylinder through the upper opening, and the upper opening is closed by the first sealing member;

[0012] The heating plate closes the lower opening of the cylinder and the heating surface is exposed to the interior of the cylinder.

[0013] Optionally, the heating plate includes a plate seat located at the periphery and a heating component located inside the plate seat, the plate seat is sealed to the lower opening of the cylinder via a second seal, an annular gap is provided between the second seal and the heating component, and the liquid outlet passage passes through the annular gap.

[0014] Optionally, the liquid inlet passage passes through the annular gap and is arranged opposite to the liquid outlet passage.

[0015] Optionally, the liquid storage tank includes a controllable waste liquid passage, one end of which is arranged on the heating plate or the liquid outlet passage, and the other end is connected to the bus.

[0016] Optionally, the atomization therapy device includes a total liquid inlet and a total liquid outlet, and the bus is connected to the total liquid outlet.

[0017] Optionally, the liquid storage tank includes a controllable safety passage, one end of which is connected to the interior of the cylinder, and the other end of which is connected to the bus.

[0018] Optionally, a heat insulating seal is pressed onto the first seal, and the piston sequentially passes through the heat insulating seal and the first seal when moving toward the cylinder.

[0019] Optionally, the driving component includes:

[0020] A driving motor, wherein the driving motor is provided with a driving screw;

[0021] A driving slider, fixedly disposed on the piston and threadedly connected to the driving screw;

[0022] The piston is in the shape of a cylinder with an open upper end, and the upper end is connected to the driving slider, and the transmission screw extends to the interior of the piston.

[0023] Optionally, a sliding fitting is provided on a side of the transmission screw away from the drive motor, and an inner ring of the sliding fitting is rotationally fitted with the transmission screw and an outer periphery is slidingly fitted with an inner wall of the piston.

[0024] Optionally, the cylinder, the piston and the transmission screw are arranged in a vertical direction, the drive motor is located above the transmission screw and the two are connected to each other via a coupling.

[0025] Optionally, the ratio of the outer diameter of the piston to its inner diameter is in the range of 1.5 to 3; the ratio of the outer diameter of the piston to the outer diameter of the driving screw is in the range of 1.8 to 5.

[0026] Optionally, the driving slider achieves linear motion by driving a slide rail;

[0027] A triggering member is disposed on the driving sliding block, and a first position sensor and a second position sensor responsive to the triggering member are disposed on the side of the driving sliding rail.

[0028] Optionally, an annular wear-resistant ring is provided at the end of the piston away from the driving slider, and the wear-resistant ring is used for slidingly fitting with the inner wall of the cylinder.

[0029] Optionally, the wear-resistant ring is arranged around the circumference of the piston and is provided with at least one release crack.

[0030] Optionally, the wear-resistant ring extends in the axial direction of the piston, and the ratio of its axial length to the piston diameter ranges from 0.1 to 0.7.

[0031] Optionally, the atomization therapy device includes an intersecting main frame and a vertical frame installed on the main frame, the main frame includes an operating area located at the top and a pipeline area located at the bottom, the vertical frame is located in the operating area, and the output component is installed on the vertical frame.

[0032] Optionally, the vertical frame divides the operating area into a mechanical area and an electrical area, and the electrical area is provided with a control circuit located at the rear of the main frame and a control device located at the front of the main frame.

[0033] Optionally, the liquid outlet passage includes a liquid outlet connection port connected to a consumable, and the liquid outlet connection port is located in the pipeline area and below the control device.

[0034] Optionally, a total liquid inlet and a total liquid outlet are provided at the rear of the vertical frame, and the liquid inlet passage extends around one side of the main frame to the pipeline area.

[0035] Optionally, a bus is disposed at one side of the main frame and is lower than the main frame, and corresponding pipelines in the pipeline area are connected to the total liquid outlet via the bus.

[0036] Optionally, a through hole is provided on the main frame, the cylinder of the liquid storage tank is arranged in the through hole, and the heating plate is arranged in the pipeline area.

[0037] Optionally, the through hole is located at the front of the vertical rack.

[0038] The present application also discloses a control method of an atomization treatment device, which is used to control the atomization treatment device to implement a preset operation on a working medium. The atomization treatment device includes a heatable liquid storage tank, a piston that can apply pressure to the liquid storage tank, and an air pump that can establish negative pressure or positive pressure in the liquid storage tank. The control method includes:

[0039] During the liquid filling process, the piston withdraws from the liquid storage tank and / or the air pump works to achieve negative pressure liquid filling in the liquid storage tank;

[0040] The emptying process is to empty the liquid storage tank by the piston entering the liquid storage tank and / or the air pump working;

[0041] The temperature control process adjusts the working medium to a preset temperature by heating the liquid storage tank;

[0042] During the delivery process, the piston enters the liquid storage tank and / or the air pump works to increase the pressure in the liquid storage tank to a preset pressure. The working medium leaves through the liquid outlet passage of the liquid storage tank under preset conditions and realizes the corresponding function. In the subsequent process, the atomization therapy device enters the liquid storage tank and / or the air pump works to maintain the pressure value of the working medium.

[0043] Optionally, the control method of the atomization treatment device further includes:

[0044] A purge process, wherein the air pump works to empty the liquid storage tank and the corresponding passage;

[0045] The waste liquid process is to enter the liquid storage tank through the piston and / or the air pump works to enable the working medium to enter the bus through the waste liquid passage of the liquid storage tank.

[0046] The technical solution disclosed in the present application effectively overcomes the problems of working medium temperature control and emptying procedure through structural optimization of the atomization therapy equipment, and provides a structural basis for flexibly controlling the working medium temperature and improving the atomization adaptability.

[0047] The specific beneficial technical effects will be further explained in the specific implementation methods in combination with specific structures or steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a schematic diagram of the structure of the atomization treatment device in this application;

[0049] Figure 2 for Figure 1 A partial enlarged schematic diagram of the atomization treatment device;

[0050] Figure 3 for Figure 1 An enlarged schematic diagram of the functional components of the atomization therapy device;

[0051] Figure 4 It is a cross-sectional schematic diagram of some parts of a functional component in an embodiment;

[0052] Figure 5 for Figure 1 The schematic diagram of the back structure of the atomization treatment device;

[0053] Figure 6 for Figure 1 A schematic diagram of the structure of the pipeline area of ​​the atomization treatment equipment;

[0054] Figure 7 for Figure 1 A schematic cross-sectional view of the output assembly and liquid storage tank of the atomization therapy device;

[0055] Figure 8 for Figure 7 A partial enlarged schematic diagram of the output component in FIG.

[0056] Fig. 9 for Figure 7 An enlarged schematic diagram of the bottom portion of the liquid storage tank;

[0057] Fig.10 for Figure 1 A cross-sectional diagram of an output assembly and a liquid storage tank of the atomization treatment device from another perspective;

[0058] Fig.11 for Fig.10 A partial enlarged schematic diagram of the output component in FIG.

[0059] Fig.12 for Fig.10 An enlarged schematic diagram of the bottom portion of the liquid storage tank;

[0060] Fig.13 for Figure 1 Schematic diagram of the overall layout of the nebulizer therapy equipment.

[0061] The reference numerals in the figures are described as follows:

[0062] 1. Liquid storage tank; 11. Cylinder; 111. First sealing member; 1111. Heat-insulating sealing member; 112. Second sealing member; 12. Heating plate; 121. Plate seat; 122. Heating component; 123. Annular gap; 124. Temperature sensor; 13. Liquid inlet passage; 131. Liquid inlet solenoid valve; 14. Liquid outlet passage; 141. Liquid outlet connection port; 142. Liquid outlet solenoid valve; 15. Waste liquid passage; 151. Waste liquid solenoid valve; 16. Safety passage;

[0063] 2. Output assembly; 21. Piston; 211. Wear-resistant ring; 22. Driving assembly; 221. Driving motor; 222. Driving screw; 223. Driving slider; 2231. Driving slide rail; 2232. Trigger; 2233. First position sensor; 2234. Second position sensor; 224. Sliding fitting; 2241. Thrust bearing; 2242. Sliding wear-resistant ring;

[0064] 3. Functional components; 31. Emptying passage; 311. Liquid sensor; 312. Emptying control valve; 32. Air pump; 321. Air path switching valve; 33. Gas-liquid separation tank; 331. Liquid level sensor; 332. Liquid-proof device; 3321. Airway opening; 3322. Liquid-blocking baffle; 333. Liquid discharge passage;

[0065] 4. Busbar; 41. Total liquid inlet; 42. Total liquid outlet;

[0066] 91. Main frame; 911. Operation area; 9111. Mechanical area; 9112. Electrical area; 9113. Control circuit; 9114. Control device; 912. Pipeline area; 913. Through hole; 92. Vertical frame. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0068] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0070] Reference Figure 1 To Attachment Fig.13 In the embodiment shown, the present application discloses a negative pressure liquid inlet atomization treatment device, comprising:

[0071] A liquid storage tank 1, which is used to contain a working medium and includes a vertically arranged cylinder 11 and a heating plate 12 that seals the bottom of the cylinder 11, and the liquid storage tank 1 includes a controllable liquid inlet passage 13 and a liquid outlet passage 14, wherein at least the liquid outlet passage 14 is connected to the bottom space of the cylinder 11 via the heating plate 12;

[0072] The output assembly 2 includes a piston 21 slidably disposed in the cylinder 11 of the liquid storage tank 1 and a driving assembly 22 for driving the piston 21 to move. The piston 21 enters through the top of the cylinder 11. The top of the cylinder 11 is provided with a first sealing member 111. The piston 21 slidably cooperates with the first sealing member 111. The piston 21 has a standby position for exiting the cylinder 11 and a relative working stroke. In the working stroke, the piston 21 occupies the space in the cylinder 11 to realize pressurization of the working medium.

[0073] The functional component 3 includes a controllable emptying passage 31 and an air pump 32 connected to the emptying passage 31, and the emptying passage 31 is connected to the upper space of the cylinder 11;

[0074] During the liquid inlet process, the atomization treatment device operates by withdrawing the piston 21 from the cylinder 11 and / or the functional component 3 to achieve negative pressure liquid inlet in the liquid storage tank 1;

[0075] During the emptying process, the atomization treatment device enters the cylinder 11 and / or the functional component 3 through the piston 21 to work to empty the liquid storage tank 1.

[0076] The liquid storage tank 1 provides a space that can meet the three-in-one requirements of liquid storage, temperature control, and pressurization. In terms of liquid storage, the upper and lower open cylinder 11 provides a structural basis for subsequent settings; in terms of pressurization, the movement of the piston 21 is used to achieve the establishment of negative pressure and positive pressure in the liquid storage tank 1; in terms of temperature control, the heating plate 12 can meet the heating requirements, and the cylinder 11 and piston 21 of the liquid storage tank 1 can meet the heat dissipation requirements. The technical solution in this application also provides a functional component 3, which can provide a more convenient operation method in the liquid storage tank 1. Overall, the technical solution disclosed in this application effectively overcomes the problems of working medium temperature control and emptying procedures through the structural optimization of the atomization treatment equipment, and provides a structural basis for flexibly controlling the working medium temperature and improving the adaptability of atomization. Compared with the characteristics of traditional steam ablation systems that carry large energy, fast speed, wide range, are not suitable for small-scale ablation, and have certain damage to native tissues, the adaptability is effectively improved. In actual use, the working medium includes purified water or saline. In one embodiment, the working medium carries a drug. In terms of drug loading, the working medium is a drug-loaded solution or a non-dissolving mixed system.

[0077] For the overall layout, refer to the attached Figure 1 and attached Fig.13 In the illustrated embodiment, the atomization treatment device includes an intersecting main frame 91 and a vertical frame 92 mounted on the main frame 91, the main frame 91 includes an operation area 911 located at the top and a pipeline area 912 located at the bottom, the vertical frame 92 is located in the operation area 911, and the output assembly 2 is mounted on the vertical frame 92. Further, the vertical frame 92 divides the operation area 911 into a mechanical area 9111 and an electrical area 9112, and the electrical area is provided with a control circuit 9113 located at the rear of the main frame 91 and a control device 9114 located at the front of the main frame 91. The liquid outlet passage 14 includes a liquid outlet connection port 141 for connecting with consumables, and the liquid outlet connection port 141 is located in the pipeline area 912 and below the control device 9114. A total liquid inlet 41 and a total liquid outlet 42 are provided at the rear of the vertical frame 92, and the liquid inlet passage 13 extends to the pipeline area 912 around one side of the main frame 91. The bus bar 4 is arranged on one side of the main frame 91 and is lower than the main frame 91, and the corresponding pipelines of the pipeline area 912 are connected to the total liquid outlet 42 via the bus bar 4. A through hole 913 is arranged on the main frame 91, and the cylinder 11 of the liquid storage tank 1 is arranged in the through hole 913, and the heating plate 12 is arranged in the pipeline area 912. The through hole 913 is located in front of the vertical frame 92.

[0078] The above arrangement divides the space into regular areas through the main frame 91 and the vertical frame 92 installed on the main frame 91. The various components cooperate with each other in the corresponding areas. The equipment as a whole works independently while being compactly arranged and is not prone to mutual interference. This improves stability and provides a good foundation for the overall appearance design of the product.

[0079] For the setting of the passage, refer to the attached Figure 6 In the illustrated embodiment, the liquid storage tank 1 includes a controllable waste liquid passage 15, one end of which is arranged on the heating plate 12 or the liquid outlet passage 14, and the other end is connected to the bus 4. The waste liquid passage 15 is mainly used to achieve the treatment of excess working medium and the cleaning of the pipeline. The liquid storage tank 1 includes a controllable safety passage 16, one end of which is connected to the inside of the cylinder 11, and the other end is connected to the bus 4. The safety passage 16 is used to provide a mechanical / independent safety guarantee from the control system, which is generally achieved by an independent pressure valve, and can also be achieved by an independently operated control device 9114. In the overall flow direction, the atomization treatment device includes a total liquid inlet 41 and a total liquid outlet 42, and the bus 4 is connected to the total liquid outlet 42. The bus 4 can collect gas and liquid, avoid the complex setting of the pipeline, and at the same time provide a buffer space to ensure the stability of the internal retention.

[0080] The liquid storage tank 1 has the actual effect of heat dissipation while storing liquid and heating. When the heat dissipation effect is too weak, higher requirements will be placed on the heating accuracy; when the heat dissipation effect is too strong, it will increase the burden on the heating device and generate heat output to the surrounding components. In this embodiment, a heat insulating seal 1111 is pressed on the first seal 111, and the piston 21 passes through the heat insulating seal 1111 and the first seal 111 in sequence during the movement toward the cylinder 11. The heat insulating seal 1111 here can effectively prevent the cylinder 11 of the liquid storage tank 1 and the working medium in the heat storage tank from transferring heat to the relevant components of the output component 2, thereby improving the temperature control accuracy.

[0081] For the specific settings of output component 2, refer to the attached Figure 7 To Attachment Fig.12 In the illustrated embodiment, the drive assembly 22 includes:

[0082] A driving motor 221, wherein the driving motor 221 is provided with a driving screw 222;

[0083] The driving slider 223 is fixedly disposed on the piston 21 and is threadedly connected to the driving screw;

[0084] The piston 21 is in a cylindrical shape with an open upper end, and the upper end is connected to the driving slider 223 . The driving screw 222 extends into the interior of the piston 21 .

[0085] The driving slider 223 converts the rotation of the driving motor 221 and the driving screw 222 into linear motion and provides guidance, thereby achieving stable and high-precision motion of the piston 21. In terms of implementation, the driving slider 223 can be used to achieve linear motion through the driving rail 2231.

[0086] In terms of the control of the motion stroke, referring to an embodiment, a triggering member 2232 is provided on the driving slider 223, and a first position sensor 2233 and a second position sensor 2234 are provided on the side of the driving rail 2231 in response to the triggering member 2232. The driving motor 221 is controlled by the first position sensor 2233 and the second position sensor 2234.

[0087] In order to improve the rotation accuracy and axial concentricity of the transmission screw 222, referring to an embodiment, a sliding fitting 224 is provided on the side of the transmission screw 222 away from the driving motor 221, and the inner ring of the sliding fitting 224 is rotationally matched with the transmission screw 222 and the outer periphery is slidingly matched with the inner wall of the piston 21. In the implementation method, the sliding fitting 224 can be a combined structure, including a thrust bearing 2241 of the inner ring and a sliding wear ring 2242 of the outer ring. This setting can reduce the requirements for component accuracy, and the setting of standard parts can reduce the pressure of production and assembly. Similarly, in order to improve the axial stability of the piston 21 during movement, referring to an embodiment, an annular wear ring 211 is provided at the end of the piston 21 away from the driving slider 223, and the wear ring 211 is used to slide with the inner wall of the cylinder 11. The wear ring 211 is arranged around the circumference of the piston 21 and is provided with at least one release crack. The wear-resistant ring 211 extends in the axial direction of the piston 21 , and the ratio between its axial length and the diameter of the piston 21 is in the range of 0.1 to 0.7.

[0088] As can be easily understood from the above, the piston 21 is a single-end closed cylinder. In terms of size structure, referring to an embodiment, the ratio between the outer diameter of the piston 21 and its inner diameter is in the range of 1.5 to 3; the ratio between the outer diameter of the piston 21 and the outer diameter of the drive screw 222 is in the range of 1.8 to 5. In terms of overall layout, referring to an embodiment, the cylinder 11, the piston 21 and the drive screw 222 are arranged in a vertical direction, the drive motor 221 is located above the drive screw 222 and the two are connected to each other through a coupling.

[0089] In terms of the details of the arrangement of the functional component 3, referring to an embodiment, the functional component 3 includes a gas-liquid separation tank 33, the top of which is connected to the air pump 32, and the middle or bottom of which is connected to the exhaust passage 31. The gas-liquid separation tank 33 can achieve gas-liquid separation of the discharged fluid in the liquid storage tank 1, and provide a buffer space, thereby providing a structural basis for precise control.

[0090] For example, in the coordination setting of the emptying passage 31, referring to an embodiment, a liquid sensor 311 is provided on the emptying passage 31, and the on-off of the emptying passage 31 and / or the air pump 32 are controlled by the liquid sensor 311. The main function of the liquid sensor 311 is to judge the end point of the emptying process. When the liquid sensor 311 is triggered during the emptying process, it means that the emptying has been completed. In the actual structure, referring to an embodiment, the emptying passage 31 includes an emptying control valve 312 and a liquid sensor 311 for controlling the emptying passage 31 from the liquid storage tank 1 to the gas-liquid separation tank 33 in sequence. The advantage of setting the emptying control valve 312 before the liquid sensor 311 is that it can ensure the accuracy of the judgment of the end point of the emptying process. When the liquid sensor 311 is triggered, the possibility of air still existing before the front emptying control valve 312 is greatly reduced, avoiding the risk of incomplete emptying.

[0091] In the specific configuration of the liquid storage tank 1, referring to the embodiment shown in the accompanying drawings, the cylinder 11 of the liquid storage tank 1 is a cylinder that is open at the top and bottom, the piston 21 enters the interior of the cylinder 11 through the upper opening, and the upper opening is closed by the first sealing member 111; the heating disc 12 closes the lower opening of the cylinder 11 and the heating surface is exposed to the interior of the cylinder 11. The cylinder 11 is closed by the piston 21 and the heating disc 12, so that the compact layout of the equipment can be achieved, and the internal space of the liquid storage tank 1 is more fully exposed to the functional components that need to be applied, for example: the heating disc 12 includes a disc seat 121 located at the periphery and a heating component 122 located in the disc seat 121, the disc seat 121 is sealed and connected to the lower opening of the cylinder 11 through the second sealing member 112, an annular gap 123 is provided between the second sealing member 112 and the heating component 122, and the liquid outlet passage 14 passes through the annular gap 123. The annular gap 123 can improve the compactness of the layout while also improving the heating efficiency of the heating disk 12, ensuring that the liquid flowing in the liquid outlet passage 14 will definitely flow through the vicinity of the heating component 122, thereby improving the heating efficiency and temperature control accuracy. For the same reason, it should be avoided that the interfaces of the liquid inlet passage 13 and the liquid outlet passage 14 on the heating disk 12 are too close to cause a short circuit in the flow path of the working medium. Therefore, referring to one embodiment, the liquid inlet passage 13 is arranged opposite to the liquid outlet passage 14 through the annular gap 123. In the actual structure, the connection line between the interfaces of the liquid passage and the liquid outlet passage 14 on the heating disk 12 passes through the center of the heating component 122 of the heating disk 12.

[0092] Regarding the setting of the gas-liquid separation tank 33 itself, referring to an embodiment, a liquid level sensor 331 is provided on the gas-liquid separation tank 33, and the air pump 32 is controlled by the liquid level sensor 331. The liquid level sensor 331 is arranged on the outside of the gas-liquid separation tank 33, and is lower than the connection position of the emptying passage 31 and the gas-liquid separation tank 33 in the vertical direction. This setting can improve the stability of the liquid level sensor 331 and prevent the liquid level sensor 331 from being falsely triggered by the disturbed fluid. In terms of structure, the liquid level sensor 331 adopts a capacitive type. In addition to being able to detect the liquid inventory in the gas-liquid separation tank 33, the liquid level sensor 331 can also protect the air pump 32 and prevent the air pump 32 from sucking the liquid in the gas-liquid separation tank 33, causing unnecessary failures. The same design logic can also be referred to an embodiment, in which a liquid-proof device 332 is provided on the top of the gas-liquid separation tank 33, and the air pump 32 is connected to the liquid-proof device 332. The setting of the liquid-proof device 332 can effectively provide the stability of the operation of the air pump 32. In terms of specific settings, the liquid-proof device 332 includes an airway interconnected with the interior of the gas-liquid separation tank 33 and a liquid-blocking baffle 3322 disposed between the airway opening 3321 and the drain passage 31. The liquid-blocking baffle 3322 is disposed obliquely and faces the bottom of the gas-liquid separation tank 33. In terms of passage settings, a controllable drain passage 333 is disposed at the bottom of the gas-liquid separation tank 33, and the other end of the drain passage 333 is connected to the bus 4.

[0093] In addition to the emptying process mentioned above, the functional component 3 can also provide more abundant practical functions. For example, referring to an embodiment, the air pump 32 is a two-way air pump 32 and switches its working state relative to the emptying passage 31 through the air circuit switching valve 321. The air circuit switching valve 321 can realize the function switching of the air pump 32 to realize positive pressure or negative pressure on the emptying passage 31. During the emptying process, the air pump 32 can realize the establishment of negative pressure for the gas-liquid separation tank 33, the emptying passage 31, the liquid storage tank 1 and the corresponding pipelines, thereby sucking the liquid into the corresponding position; during the purging process, the air pump 32 can realize the establishment of positive pressure for the gas-liquid separation tank 33, the emptying passage 31, the liquid storage tank 1 and the corresponding pipelines, thereby blowing the fluid out of the corresponding position. This setting effectively improves the richness of the equipment functions without significantly increasing the burden on the equipment through the scientific setting of simple components, and provides a structural basis for more functional settings while improving the user experience.

[0094] It is not difficult to understand that the present application also discloses a control method of an atomization treatment device, which is used to control the atomization treatment device to implement a preset operation on a working medium. The atomization treatment device includes a heatable liquid storage tank 1, a piston 21 that can apply pressure to the liquid storage tank 1, and an air pump 32 that can establish negative pressure or positive pressure in the liquid storage tank 1. The control method includes:

[0095] During the liquid filling process, the piston 21 withdraws from the liquid storage tank 1 and / or the air pump 32 works to achieve negative pressure liquid filling in the liquid storage tank 1;

[0096] During the emptying process, the piston 21 enters the liquid storage tank 1 and / or the air pump 32 works to empty the liquid storage tank 1;

[0097] In the temperature control process, the working medium is adjusted to a preset temperature by heating the liquid storage tank 1;

[0098] During the delivery process, the piston 21 enters the liquid storage tank 1 and / or the air pump 32 to work to increase the pressure in the liquid storage tank 1 to a preset pressure. When the preset conditions are met, the working medium leaves through the liquid outlet passage 14 of the liquid storage tank 1 and realizes the corresponding function. In the subsequent process, the nebulizer treatment device enters the liquid storage tank 1 and / or the air pump 32 through the piston 21 to work to maintain the pressure value of the working medium.

[0099] The above processes do not limit the execution order of each process. In the actual implementation process, the order of each step may be adjusted, and a step may be implemented multiple times. The following is an example of the working process of the atomization treatment device described above.

[0100] During the liquid inlet process, the liquid inlet solenoid valve 131 on the liquid inlet passage 13 is opened, and the driving motor 221 reverses to drive the transmission screw 222 to rotate, so that the driving slider 223 drives the piston 21 to move upward, so that negative pressure is formed in the liquid storage tank 1, and the working medium enters the liquid storage tank 1 through the liquid inlet solenoid valve 131 due to the negative pressure.

[0101] During this process, the air pump 32 may also cooperate to improve the efficiency of liquid inlet. In terms of the cooperation method, in one embodiment, the operation of the air pump 32 and the movement of the piston 21 work synchronously and cooperatively. For example, during the upward movement of the piston 21, the air pump 32 synchronously establishes a negative pressure in the liquid storage tank 1. In another embodiment, the operation of the air pump 32 and the movement of the piston 21 work in steps. For example, before the liquid inlet solenoid valve 131 is opened, the air pump 32 first establishes a negative pressure in the liquid storage tank 1, and then opens the liquid inlet solenoid valve 131 and drives the piston 21 to move upward to achieve liquid inlet. Similarly, during the movement of the piston 21, the air pump 32 can be set to keep working all the time, or it can be set to stop working before the piston 21 starts to move and disconnect the connection between the air pump 32 and the liquid storage tank 1 through the emptying control valve.

[0102] During the emptying process, the emptying solenoid valve in the emptying passage 31 is opened, and the driving motor 221 rotates forward to drive the transmission screw 222 to rotate, so that the driving slider 223 drives the piston 21 to move downward, and the upper air in the liquid storage tank 1 is discharged through the emptying solenoid valve. When the liquid sensor 311 detects the liquid, it is determined that the air has been emptied, and the emptying solenoid valve and the driving motor 221 are closed.

[0103] During this process, the air pump 32 can also cooperate to improve the emptying efficiency, especially when the temperature of the working medium in the liquid storage tank 1 is high, the negative pressure caused by the upward movement of the piston 21 may cause the gasification of the working medium to intensify, resulting in insufficient negative pressure and other working conditions.

[0104] During the temperature control process, the heating plate 12 is started to heat the liquid in the liquid storage tank 1, and the temperature is fed back in real time by the temperature sensor 124. The temperature is controlled to be constant by software.

[0105] During the conveying process: the liquid outlet solenoid valve 142 in the liquid outlet passage 14 is opened, the driving motor 221 rotates forward to drive the transmission screw 222 to rotate, and the driving slider 223 drives the piston 21 to move downward. The working medium passes through the liquid outlet solenoid valve 142 at a constant flow rate and / or pressure, enters the consumables through the liquid outlet connection port 141, and performs corresponding operations.

[0106] As mentioned above, the functional component 3 can also realize more abundant functions. Referring to an embodiment, the control method of the atomization treatment device further includes:

[0107] During the purging process, the air pump 32 works to empty the liquid storage tank 1 and the corresponding passage;

[0108] During the waste liquid process, the piston 21 enters the liquid storage tank 1 and / or the air pump 32 works to enable the working medium to enter the bus 4 via the waste liquid passage 15 of the liquid storage tank 1 .

[0109] Similarly, the above processes do not limit the execution order of each process. In the actual implementation process, the order of each step may be adjusted, and a step may be implemented multiple times or independently. The following is an example of the working process of the atomization treatment device described above.

[0110] During the purging process, for example, when the nebulizer therapy device is being transported or completely used, it is necessary to empty all the remaining liquid in the pipeline and the liquid storage tank 1. The gas-liquid separation tank 33 can be passed through positive pressure. When the emptying solenoid valve is opened, positive pressure is passed into the liquid storage tank 1, and then by opening and closing other solenoid valves, all the remaining liquid can be discharged.

[0111] During the waste liquid process, the waste liquid solenoid valve 151 in the waste liquid passage 15 is opened, and the driving motor 221 rotates forward to drive the transmission screw 222 to rotate, so that the driving slider 223 drives the piston 21 to move downward, so that the working medium of the liquid storage tank 1 is discharged; in this process, the air pump 32 can also cooperate to improve the waste liquid discharge efficiency, especially the waste liquid in the pipeline. With the cooperation of the air pump 32, repeated flushing operations can be effectively avoided.

[0112] Similar to the liquid intake process, in the purging process and the waste liquid process, the operation of the air pump 32 and the movement of the piston 21 can also be set to work synchronously and in steps. In the synchronous and coordinated operation, during the downward movement of the piston 21, the air pump 32 synchronously establishes a positive pressure in the liquid storage tank 1. In the step-by-step operation, the waste liquid solenoid valve 151 is opened to drive the piston 21 to move downward to discharge the working medium in the liquid storage tank. When the piston runs to the lower dead point, the air pump 32 works to establish a positive pressure in the liquid storage tank 1 to discharge the working medium in the pipeline. In the above working process, the connection between the air pump 32 and the liquid storage tank 1 can be disconnected by the drain control valve.

[0113] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0114] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. Negative pressure liquid inlet atomization treatment equipment, characterized in that: include: A liquid storage tank, the liquid storage tank is used to contain the working medium and comprises a vertically arranged cylinder and a heating plate sealing the bottom of the cylinder, the liquid storage tank comprises a controllable liquid inlet passage and a liquid outlet passage, wherein at least the liquid outlet passage is connected to the bottom space of the cylinder via the heating plate; An output assembly, comprising a piston slidably disposed in the cylinder of the liquid storage tank and a driving assembly for driving the piston to move, wherein the piston enters through the top of the cylinder, a first sealing member is disposed on the top of the cylinder, and the piston slidably cooperates with the first sealing member; the piston has a standby position for exiting the cylinder and a relative working stroke, and in the working stroke, the piston occupies the space in the cylinder to realize pressurization of the working medium; A functional component, comprising a controllable emptying passage and an air pump connected to the emptying passage, wherein the emptying passage is connected to the upper space of the cylinder; During the liquid inlet process, the atomization treatment device operates by withdrawing the piston from the cylinder and / or the functional component to achieve negative pressure liquid inlet in the liquid storage tank; During the emptying process, the atomization treatment device enters the cylinder and / or the functional component through the piston to work to achieve the emptying of the liquid storage tank.

2. The negative pressure liquid inlet atomization treatment device according to claim 1, characterized in that: The cylinder of the liquid storage tank is a cylindrical body opened at the top and bottom, the piston enters the interior of the cylinder through the upper opening, and the upper opening is closed by the first sealing member; The heating plate closes the lower opening of the cylinder and the heating surface is exposed to the interior of the cylinder.

3. The negative pressure liquid inlet atomization treatment device according to claim 2, characterized in that: The heating plate includes a plate seat located at the periphery and a heating component located in the plate seat. The plate seat is sealed and connected to the lower opening of the cylinder through a second seal. An annular gap is provided between the second seal and the heating component, and the liquid outlet passage passes through the annular gap.

4. The negative pressure liquid inlet atomization treatment device according to claim 3, characterized in that: The liquid inlet passage passes through the annular gap and is arranged opposite to the liquid outlet passage.

5. The negative pressure liquid inlet atomization treatment device according to claim 1, characterized in that: The drive assembly comprises: A driving motor, wherein the driving motor is provided with a driving screw; A driving slider, fixedly disposed on the piston and threadedly connected to the driving screw; The piston is in the shape of a cylinder with an open upper end, and the upper end is connected to the driving slider, and the transmission screw extends to the interior of the piston.

6. The negative pressure liquid inlet atomization treatment device according to claim 5, characterized in that: A sliding fitting is provided on a side of the transmission screw away from the drive motor. The inner ring of the sliding fitting is rotationally matched with the transmission screw and the outer periphery is slidingly matched with the inner wall of the piston.

7. The negative pressure liquid inlet atomization treatment device according to claim 6, characterized in that: The cylinder, the piston and the transmission screw are arranged in a vertical direction, the driving motor is located above the transmission screw and the two are connected to each other through a coupling.

8. The negative pressure liquid inlet atomization treatment device according to claim 7, characterized in that: The ratio between the outer diameter of the piston and its inner diameter is in the range of 1.5 to 3; the ratio between the outer diameter of the piston and the outer diameter of the transmission screw is in the range of 1.8 to 5.

9. A control method for a nebulizer treatment device, characterized in that: The method is used to control an atomization treatment device to implement a preset operation on a working medium, wherein the atomization treatment device includes a heatable liquid storage tank, a piston capable of applying pressure to the liquid storage tank, and an air pump capable of establishing negative pressure or positive pressure in the liquid storage tank. The control method includes: During the liquid filling process, the piston withdraws from the liquid storage tank and / or the air pump works to achieve negative pressure liquid filling in the liquid storage tank; The emptying process is to empty the liquid storage tank by the piston entering the liquid storage tank and / or the air pump working; The temperature control process adjusts the working medium to a preset temperature by heating the liquid storage tank; During the delivery process, the piston enters the liquid storage tank and / or the air pump works to increase the pressure in the liquid storage tank to a preset pressure. The working medium leaves through the liquid outlet passage of the liquid storage tank under preset conditions and realizes the corresponding function. In the subsequent process, the atomization therapy device enters the liquid storage tank and / or the air pump works to maintain the pressure value of the working medium.

10. The control method of the atomization treatment device according to claim 9, characterized in that: The control method of the atomization treatment device also includes: A purge process, wherein the air pump works to empty the liquid storage tank and the corresponding passage; The waste liquid process is to enter the liquid storage tank through the piston and / or the air pump works to enable the working medium to enter the bus through the waste liquid passage of the liquid storage tank.

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