Negative pressure emptying atomization treatment equipment and control method

Abstract

The invention discloses negative pressure emptying atomization treatment equipment and a control method. The atomization treatment equipment comprises a liquid storage tank, an output assembly and a functional assembly, wherein the liquid storage tank is used for containing, controlling the temperature and conveying a working medium, and the output assembly and the functional assembly are used for establishing positive pressure or negative pressure in the liquid storage tank. The liquid storage tank comprises a liquid inlet passage, a liquid outlet passage and a barrel with a heating disc at the bottom; the output assembly comprises a piston and a driving assembly. The piston is provided with a first sealing piece which slides on the cylinder in a sealing mode. The functional assembly comprises an emptying passage and an air pump; the piston has a standby position and a relative working stroke, and in the process that the piston enters the working stroke from the standby position, the first sealing piece crosses the communicating position of the emptying passage and the cylinder body; in the working stroke, the piston moves to achieve establishment of positive pressure or negative pressure. 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 negative pressure evacuation 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 evacuation atomization treatment device, including a liquid storage tank for receiving, temperature controlling and delivering a working medium, and an output component and a functional component for establishing positive or negative pressure in the liquid storage tank;

[0005] The liquid storage tank comprises a controllable liquid inlet passage, a liquid outlet passage and a cylinder with a heating plate at the bottom, and the top of the cylinder is open;

[0006] The output assembly includes a piston slidably disposed in the cylinder and a driving assembly for driving the piston to move, the piston enters through the top of the cylinder, and the bottom of the piston is provided with a first sealing member that slides in a sealed manner with the cylinder;

[0007] The functional component includes a controllable evacuation passage and an air pump connected to the evacuation passage;

[0008] The piston has a standby position for exiting the cylinder and a relative working stroke. During the process of the piston entering the working stroke from the standby position, the first seal spans the connection position between the exhaust passage and the cylinder. During the working stroke, the piston achieves the establishment of the positive or negative pressure by changing the space it occupies in the cylinder.

[0009] 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.

[0010] Optionally, the cylinder is vertically arranged, the piston is located at the standby position, and the connecting position between the exhaust passage and the cylinder is located below the first sealing member.

[0011] Optionally, the piston completes the liquid filling process in the working stroke, and completes the emptying process when the piston is located in the standby position;

[0012] During the liquid inlet process, the atomization treatment device withdraws from the cylinder through the piston to achieve negative pressure liquid inlet in the liquid storage tank;

[0013] During the emptying process, the atomization treatment device works through the functional components to achieve emptying of the liquid storage tank.

[0014] Optionally, the functional component includes a gas-liquid separation tank, the top of which is connected to the air pump, and the middle or bottom of which is connected to the exhaust passage.

[0015] Optionally, a liquid sensor is provided on the exhaust passage, and the opening and closing of the exhaust passage and / or the air pump are controlled by the liquid sensor.

[0016] Optionally, the emptying passage from the liquid storage tank to the gas-liquid separation tank includes an emptying control valve for controlling the emptying passage and the liquid sensor in sequence.

[0017] Optionally, a liquid level sensor is provided on the gas-liquid separation tank, and the air pump is controlled by the liquid level sensor.

[0018] Optionally, the liquid level sensor is arranged on the outside of the gas-liquid separation tank and is lower than the connecting position between the emptying passage and the gas-liquid separation tank in the vertical direction.

[0019] Optionally, a controllable drainage passage is provided at the bottom of the gas-liquid separation tank, and the other end of the drainage passage is connected to the bus.

[0020] Optionally, a liquid-proof device is provided on the top of the gas-liquid separation tank, and the air pump is connected to the liquid-proof device.

[0021] Optionally, the liquid-proof device includes an air channel interconnected with the interior of the gas-liquid separation tank and a liquid-blocking baffle arranged between the air channel opening and the exhaust passage.

[0022] Optionally, the liquid-blocking baffle is arranged obliquely and faces the bottom of the gas-liquid separation tank.

[0023] Optionally, the air pump is a bidirectional air pump and its working state relative to the exhaust passage is switched by an air path switching valve.

[0024] 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:

[0025] During the liquid filling process, the piston is withdrawn from the liquid storage tank to achieve negative pressure liquid filling in the liquid storage tank;

[0026] The emptying process is to empty the liquid storage tank by operating the air pump;

[0027] The temperature control process adjusts the working medium to a preset temperature by heating the liquid storage tank;

[0028] During the delivery process, the piston enters the liquid storage tank 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 the preset conditions and realizes the corresponding function. In the subsequent process, the atomization therapy device enters the liquid storage tank through the piston to maintain the pressure value of the working medium.

[0029] Optionally, the control method of the atomization treatment device further includes:

[0030] During the purge process, the piston is withdrawn from the liquid storage tank, and the air pump operates to empty the liquid storage tank and the corresponding passage;

[0031] During the waste liquid process, the piston enters the liquid storage tank to enable the working medium to enter the busbar via the waste liquid passage of the liquid storage tank.

[0032] 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.

[0033] 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

[0034] Figure 1 This is a schematic diagram of the structure of the atomization treatment device in this application;

[0035] Figure 2 for Figure 1A partial enlarged schematic diagram of the atomization treatment device;

[0036] Figure 3 for Figure 1 An enlarged schematic diagram of the functional components of the atomization treatment device;

[0037] Figure 4 It is a cross-sectional schematic diagram of some parts of a functional component in an embodiment;

[0038] Figure 5 for Figure 1 The schematic diagram of the back structure of the atomization treatment device;

[0039] Figure 6 for Figure 1 A schematic diagram of the structure of the pipeline area of ​​the atomization treatment equipment;

[0040] Figure 7 for Figure 1 A schematic cross-sectional view of the output assembly and liquid storage tank of the atomization therapy device;

[0041] Figure 8a for Figure 7 A partial enlarged schematic diagram of the output component in FIG.

[0042] Figure 8b for Figure 8a Schematic diagram of the piston moving to the standby position;

[0043] Fig. 9 for Figure 7 An enlarged schematic diagram of the bottom portion of the liquid storage tank.

[0044] The reference numerals in the figures are described as follows:

[0045] 1. Liquid storage tank; 11. Cylinder; 111. First sealing member; 1111. Heat insulation 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;

[0046] 2. Output assembly; 21. Piston; 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 ring;

[0047] 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;

[0048] 4. Busbar; 41. Total liquid inlet; 42. Total liquid outlet;

[0049] 91. Main frame; 911. Operation area; 9113. Control circuit; 9114. Control device; 912. Pipeline area; 913. Through hole; 92. Vertical frame. DETAILED DESCRIPTION

[0050] 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.

[0051] 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.

[0052] 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.

[0053] Reference Figure 1 To Attachment Fig. 9 In the embodiment shown, the present application discloses a negative pressure evacuation atomization treatment device, comprising a liquid storage tank 1 for receiving, controlling the temperature and delivering the working medium, an output component 2 and a functional component 3 for establishing positive or negative pressure in the liquid storage tank 1;

[0054] The liquid storage tank 1 comprises a controllable liquid inlet passage 13, a liquid outlet passage 14 and a cylinder 11 with a heating plate 12 at the bottom, and the top of the cylinder 11 is open;

[0055] The output assembly 2 includes a piston 21 slidably disposed in the cylinder 11 and a driving assembly 22 for driving the piston 21 to move. The piston 21 enters through the top of the cylinder 11, and a first sealing member 111 is provided at the bottom of the piston 21 to seal and slide with the cylinder 11.

[0056] The functional component 3 includes a controllable exhaust passage 31 and an air pump 32 connected to the exhaust passage 31;

[0057] The piston 21 has a standby position for exiting the cylinder 11 and a relative working stroke. In the process of the piston 21 entering the working stroke from the standby position, the first sealing member 111 crosses the connection position between the exhaust passage 31 and the cylinder 11; in the working stroke, the piston 21 establishes positive or negative pressure by changing the space it occupies in the cylinder 11.

[0058] The liquid storage tank 1 provides a space that can meet the three-in-one requirements of liquid storage, temperature control, and transportation. In terms of liquid storage, the upper and lower open cylinder 11 provides a structural basis for subsequent settings; in terms of transportation, 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.

[0059] Due to the movement of the first seal 111, the volume of the sealed space in the cylinder 11 changes, and the on-off relationship between some pipelines and the cylinder 11 may change. This setting can avoid the possibility of failure of complex pipelines in a specific working process and improve the stability of the system. As mentioned above, in the process of the piston 21 entering the working stroke from the standby position, the first seal 111 crosses the connection position between the emptying passage 31 and the cylinder 11. That is, it can be understood that: when one of the two states of the piston 21 being in the standby position and the piston 21 being in the working stroke occurs, the emptying passage 31 can be connected to the working medium in the cylinder 11, and when the other occurs, the emptying passage 31 is disconnected from the working medium in the cylinder 11. In this embodiment, when the piston 21 is in the standby position, the emptying passage 31 can be connected to the working medium in the cylinder 11; when the piston 21 is in the working stroke, the emptying passage 31 is disconnected from the working medium in the cylinder 11. From another perspective, when the first seal 111 is aligned with the connection position across the emptying passage 31 and the cylinder 11, the piston 21 is located at the boundary position between the standby position and the working stroke. The advantage of this embodiment is that the connection between the emptying pipeline and the working medium can be disconnected during the transportation process. Although a corresponding emptying solenoid valve or other technical means can be set on the emptying pipeline to realize the control of pipeline opening and closing, the more complex pipeline setting still has the risk of failure under pressure, as well as unnecessary pressure loss and other problems.

[0060] In the attached Figure 8b In the embodiment shown, the cylinder 11 is arranged vertically, the piston 21 is located in the standby position, and the connection position between the emptying passage 31 and the cylinder 11 is located below the first sealing member 111. This arrangement is conducive to keeping air near the connection position between the emptying passage 31 and the cylinder 11, thereby improving the emptying efficiency.

[0061] In the actual working process, the piston 21 completes the liquid filling process in the working stroke, and completes the emptying process when the piston 21 is in the standby position;

[0062] During the liquid inlet process, the atomization treatment device withdraws from the cylinder 11 through the piston 21 to achieve negative pressure liquid inlet in the liquid storage tank 1;

[0063] During the emptying process, the atomization therapy device works through the functional component 3 to empty the liquid storage tank 1 .

[0064] The specific working process can be found in the description below and will not be elaborated here.

[0065] Regarding the details of the arrangement of the first sealing member 111, in addition to the common O-ring form, see the attached Figure 8aAs shown in FIG. 11 , the first seal 111 is an annular structure extending in the axial direction of the piston 21 and is arranged at the end of the piston 21 away from the driving slider 223. The annular and axially extending first seal 111 can guide the movement of the piston 21 while providing a sealing effect, and has less wear. In the accompanying drawings, the ratio between the axial length of the first seal 111 and the diameter of the piston 21 ranges from 0.1 to 0.7.

[0066] 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 cylinder 11 through the upper opening, and is sealed by the first sealing member 111 and the inner wall of the cylinder 11; the heating plate 12 closes the lower opening of the cylinder 11 and the heating surface is exposed to the inside of the cylinder 11. The cylinder 11 is closed by the piston 21 and the heating plate 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 plate 12 includes a plate seat 121 located at the periphery and a heating component 122 located in the plate seat 121, the plate 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.

[0067] 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.

[0068] 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, the upper opening of the cylinder 11 is provided with a heat insulation member 1111, and the piston 21 passes through the heat insulation member 1111 during the process of moving toward the cylinder 11. The heat insulation member 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 assembly 2, thereby improving the temperature control accuracy.

[0069] For the specific settings of output component 2, refer to the attached Figure 7 To Attachment Fig. 9 In the illustrated embodiment, the drive assembly 22 includes:

[0070] A driving motor 221, wherein the driving motor 221 is provided with a driving screw 222;

[0071] The driving slider 223 is fixedly disposed on the piston 21 and is threadedly connected to the driving screw;

[0072] 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 .

[0073] 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.

[0074] 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.

[0075] 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, the sliding fitting 224 can be a combined structure, including a thrust bearing 2241 of the inner ring and a sliding wear-resistant 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] In addition to the emptying process mentioned above, the functional component 3 can also provide more abundant practical functions. For example, referring to one 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 functional 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 achieve negative pressure establishment 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 purge process, the air pump 32 can achieve positive pressure establishment 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, improves the user experience and provides a structural basis for more functional settings.

[0081] For the overall layout, refer to the attached Figure 1In 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 and an electrical area, 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.

[0082] 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.

[0083] 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:

[0084] During the liquid filling process, the piston 21 is withdrawn from the liquid storage tank 1 to achieve negative pressure liquid filling in the liquid storage tank 1;

[0085] During the emptying process, the air pump 32 works to empty the liquid storage tank 1;

[0086] In the temperature control process, the working medium is adjusted to a preset temperature by heating the liquid storage tank 1;

[0087] During the delivery process, the piston 21 enters the liquid storage tank 1 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 equipment enters the liquid storage tank 1 through the piston 21 to maintain the pressure value of the working medium.

[0088] 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.

[0089] 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.

[0090] During the emptying process, the emptying solenoid valve in the emptying passage 31 is opened, the air pump 32 works and establishes negative pressure in the liquid storage tank 1, so that 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 air pump 32 are closed.

[0091] 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.

[0092] 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.

[0093] 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:

[0094] During the purging process, the piston 21 withdraws from the liquid storage tank 1, and the air pump 32 works to empty the liquid storage tank 1 and the corresponding passage;

[0095] During the waste liquid process, the piston 21 enters the liquid storage tank 1 so that the working medium enters the bus 4 via the waste liquid passage 15 of the liquid storage tank 1 .

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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 evacuation atomization treatment equipment, characterized in that: It includes a liquid storage tank for receiving, controlling the temperature and conveying the working medium, and an output component and a functional component for establishing positive pressure or negative pressure in the liquid storage tank; The liquid storage tank comprises a controllable liquid inlet passage, a liquid outlet passage and a cylinder with a heating plate at the bottom, and the top of the cylinder is open; The output assembly includes a piston slidably disposed in the cylinder and a driving assembly for driving the piston to move, the piston enters through the top of the cylinder, and the bottom of the piston is provided with a first sealing member that slides in a sealed manner with the cylinder; The functional component includes a controllable evacuation passage and an air pump connected to the evacuation passage; The piston has a standby position for exiting the cylinder and a relative working stroke. During the process of the piston entering the working stroke from the standby position, the first seal spans the connection position between the exhaust passage and the cylinder. During the working stroke, the piston achieves the establishment of the positive or negative pressure by changing the space it occupies in the cylinder.

2. The negative pressure evacuation atomization treatment device according to claim 1, characterized in that: The cylinder is arranged vertically, the piston is located at the standby position, and the communication position between the exhaust passage and the cylinder is located below the first sealing member.

3. The negative pressure evacuation atomization treatment device according to claim 1, characterized in that: The piston completes the liquid filling process in the working stroke, and completes the emptying process when the piston is in the standby position; During the liquid inlet process, the atomization treatment device withdraws from the cylinder through the piston to achieve negative pressure liquid inlet in the liquid storage tank; During the emptying process, the atomization treatment device works through the functional components to achieve emptying of the liquid storage tank.

4. The negative pressure evacuation atomization treatment device according to claim 1, characterized in that: The functional components include A gas-liquid separation tank, the top of which is connected to the air pump, and the middle or bottom of which is connected to the exhaust passage.

5. The negative pressure evacuation atomization treatment device according to claim 4, characterized in that: A liquid sensor is provided on the exhaust passage, and the opening and closing of the exhaust passage and / or the air pump are controlled by the liquid sensor.

6. The negative pressure evacuation atomization treatment device according to claim 5, characterized in that: The emptying passage includes an emptying control valve for controlling the emptying passage and the liquid sensor in sequence from the liquid storage tank to the gas-liquid separation tank.

7. The negative pressure evacuation atomization treatment device according to claim 4, characterized in that: A liquid-proof device is provided on the top of the gas-liquid separation tank, and the air pump is connected to the liquid-proof device; the liquid-proof device includes an airway interconnected with the interior of the gas-liquid separation tank and a liquid-blocking baffle arranged between the airway opening and the exhaust passage.

8. The negative pressure evacuation atomization treatment device according to claim 1, characterized in that: The air pump is a bidirectional air pump and its working state relative to the exhaust passage is switched by an air path switching valve.

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 is withdrawn from the liquid storage tank to achieve negative pressure liquid filling in the liquid storage tank; The emptying process is to empty the liquid storage tank by operating the air pump; 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 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 the preset conditions and realizes the corresponding function. In the subsequent process, the atomization therapy device enters the liquid storage tank through the piston 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: During the purge process, the piston is withdrawn from the liquid storage tank, and the air pump operates to empty the liquid storage tank and the corresponding passage; During the waste liquid process, the piston enters the liquid storage tank to enable the working medium to enter the busbar via the waste liquid passage of the liquid storage tank.

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