A fumigation device

Abstract

The utility model discloses a fumigation device, which relates to the technical field of medical devices, and comprises a water vapor generation system, a liquid medicine delivery system and an atomizer (3); the water vapor generation system comprises a high-pressure water pump (7) whose water inlet is connected to a water source, a steam generator (6) whose water inlet (62) is connected to a water outlet of the high-pressure water pump (7), a water vapor outlet (63) of the steam generator (6) is connected to an atomizing nozzle high-pressure gas inlet (32) of the atomizer (3), and the steam generator (6) comprises an evaporator (67) and a heater (61) mounted on the evaporator (67); the liquid medicine delivery system comprises a liquid medicine pump (12) whose liquid inlet is connected to a liquid medicine source, and a liquid outlet of the liquid medicine pump (12) is connected to a liquid inlet of the atomizer (3). The fumigation device has the remarkable advantages of low energy consumption and fast steam generation speed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a fumigation device. Background Art

[0002] Traditional Chinese medicine fumigation is an organic combination of medicinal power and heat through fumigation. The temperature stimulation of the medicinal gas increases the temperature of the skin, and the expansion of skin capillaries promotes blood and lymph circulation, metabolism, and immune function. The warm stimulation of the medicine also opens the pores, allowing the body's evil toxins to be discharged with sweat, promoting the absorption of inflammatory factors, strengthening the body and eliminating fatigue, giving people a sense of comfort. The whole process is mainly through the transfer of heat therapy and reabsorption of traditional Chinese medicine steam. This method can relax the muscles and bones of the human body, and has little toxic side effects on the spleen and stomach, so it is favored by more and more people.

[0003] At present, the traditional fumigation treatment equipment on the market uses a heating device to boil the Chinese medicine to produce steam for treatment. The equipment is equipped with a fumigation pot with a heating tube. The medicine and water are placed in the fumigation pot and heated to produce steam for fumigation, so as to achieve treatment of the whole body or specific parts of the patient. There is also a new type of fumigation treatment equipment, which is equipped with a heating warm air and ultrasonic atomization spray device. The ultrasonic generator emits high-frequency electrical energy, which is vibrated by the crystal transducer to turn the liquid medicine into fine droplets. After mixing with the heating warm air, it becomes a mixed medicine aerosol to treat the patient's diseased parts, reducing the safety risks of use.

[0004] However, conventional fumigation equipment uses a heating device to boil Chinese medicine to generate steam for treatment. The initial preheating time is relatively long, generally requiring 20-30 minutes, and it is difficult to control the steam entering a confined space. This method of generating steam has high energy consumption, large heat loss, slow steam generation speed, and the amount of steam cannot be effectively controlled, which can easily cause safety hazards. The new fumigation treatment equipment uses an ultrasonic atomizer (3) to atomize the liquid medicine, which is mixed with heated warm air to form a mixed medicine aerosol. During use, drug residues will be generated around the crystal transducer, which is not easy to clean. As the use time increases, the temperature of the crystal transducer rises, and the scaling phenomenon on the surface is serious, which will affect the performance and normal use of the ultrasonic atomizer (3).

[0005] In summary, how to effectively solve the problem of slow steam generation by heating and boiling of traditional fumigation equipment is an urgent problem to be solved by technicians in this field. Utility Model Content

[0006] The utility model aims to provide a fumigation device, which has the remarkable advantages of low energy consumption, fast steam generation speed and the like.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A fumigation device comprises a water vapor generation system, a liquid medicine delivery system and an atomizer;

[0009] The water vapor generation system comprises a high-pressure water pump whose water inlet is connected to a water source, a steam generator whose water inlet is connected to a water outlet of the high-pressure water pump, the water vapor outlet of the steam generator is connected to the high-pressure gas inlet of the atomizing nozzle of the atomizer, and the steam generator comprises an evaporator and a heater installed on the evaporator;

[0010] The liquid medicine delivery system comprises a liquid medicine pump whose liquid inlet is connected to a liquid medicine source, and whose liquid outlet is connected to a liquid inlet of the atomizer.

[0011] Optionally, a first temperature sensor is provided beside the atomizing steam outlet of the atomizer, and a second temperature sensor for measuring the temperature transmitted to the evaporator by the heater is provided inside the steam generator. The first temperature sensor, the second temperature sensor and the heater are electrically connected to a first controller, and the liquid medicine pump and the high-pressure water pump are electrically connected to the second controller.

[0012] Optionally, the water vapor generation system further comprises a first solenoid valve and a first filter, the water source is connected to one end of the first solenoid valve, the other end of the first solenoid valve is connected to the water inlet of the first filter, and the water outlet of the first filter is connected to the water inlet of the high-pressure water pump;

[0013] The liquid medicine delivery system also includes a second solenoid valve and a second filter. The liquid medicine source is connected to one end of the second solenoid valve, the other end of the second solenoid valve is connected to the water inlet of the second filter, and the water outlet of the second filter is connected to the water inlet of the liquid medicine pump.

[0014] Optionally, the heater includes an electric heating tube and an electric furnace plate, the electric heating tube is inside the electric furnace plate, the surface of the electric furnace plate is in contact with and connected to the bottom surface of the evaporator, and the axis of the electric heating tube is parallel to the surface of the electric furnace plate.

[0015] Optionally, a bracket is provided on the bottom surface of the evaporator, and the heater is built into the middle space of the bracket.

[0016] Optionally, an adjusting needle is provided at the upper end of the atomizer body, an atomizing steam outlet is provided at the lower end of the body, a high-pressure gas inlet connected to the water vapor outlet of the steam generator is provided on one side of the body, and a liquid medicine inlet connected to the water outlet of the liquid medicine pump is provided on the other side of the body.

[0017] Optionally, the upper surface of the evaporator has a conical protrusion, and a circle of sewage troughs is provided at the connection between the bottom of the conical protrusion and the upper surface of the evaporator, and the sewage trough is connected to the water collecting box.

[0018] Optionally, the water collecting box is arranged on one side of the evaporator, the height of the water collecting box is lower than the height of the sewage tank, the sewage tank has a notch at a position corresponding to the water collecting box, and the other side of the water collecting box is connected to the sewage valve through a pipe.

[0019] Optionally, the second temperature sensor is arranged on one side of the evaporator, the water inlet of the steam generator is arranged at the center of the upper surface of the conical protrusion, and the water vapor outlet of the steam generator is arranged on the side above the conical protrusion.

[0020] Optionally, an overflow port is provided on one side of the evaporator, and the overflow port is connected to the water collecting box.

[0021] The fumigation equipment provided by the utility model comprises a water vapor generation system, a liquid medicine delivery system and an atomizer. The water vapor generation system comprises a high-pressure water pump and a steam generator. The water inlet of the high-pressure water pump is connected to a water source. Water is contained in a water container, that is, the water outlet of the water container is connected to the water inlet of the high-pressure water pump. Water enters the high-pressure water pump from the water container, and the high-pressure water pump pressurizes the water. The water inlet of the steam generator is connected to the water outlet of the high-pressure water pump. The steam generator comprises an evaporator and a heater. The heater is an electric heater installed on the evaporator. The heater transfers heat energy to the evaporator of a special structure. When water droplets contact the heater object, the temperature of the heater is much higher than the boiling point of the water droplets, so that the heat can be quickly transferred to the entire water droplets, thereby vaporizing the water droplets instantly. The water from the high-pressure water pump flows into the interior of the evaporator through the water inlet. Since a heater is provided inside the evaporator, the water from the high-pressure water pump directly vaporizes into high-temperature, high-pressure water vapor after contacting the high-temperature surface of the evaporator. Since the shell of the steam generator is a fully enclosed container, the water vapor outlet of the steam generator is connected to the high-pressure gas inlet of the mist atomizing nozzle, and the high-temperature, high-pressure water vapor flows from the water vapor outlet to the atomizer.

[0022] The liquid medicine delivery system includes a liquid medicine pump, the liquid medicine pump inlet is connected to the liquid medicine source, the liquid medicine source is contained in a liquid medicine container, that is, the liquid medicine container outlet is connected to the liquid medicine pump inlet, the liquid medicine enters the liquid medicine pump, and the liquid medicine pump pressurizes the liquid medicine. The liquid medicine pump outlet is connected to the liquid inlet of the atomizer, and the liquid medicine enters the atomizer. Inside the atomizing nozzle of the atomizer, high-speed water vapor impacts the liquid medicine, generating high friction on the liquid surface, causing the liquid medicine to decompose into mixed droplets of drug mist, and the high-temperature water vapor continues to heat the mixed droplets of the drug to generate a fine droplet size spray through the atomizer, which is sprayed on the treatment part of the patient's body, thereby improving the drug treatment effect.

[0023] It should be noted that traditional fumigation directly vaporizes the mixed liquid of water and drug liquid, and uses instruments to analyze the steam composition, and the drug molecules are basically zero. With the fumigation equipment of the present application, even if the drug liquid pump is not running, it can be atomized into drug mist mixed droplets by relying on the siphon phenomenon of the atomizing nozzle, and the speed of the drug liquid pump has the function of adjusting the density of the drug mist mixed droplets.

[0024] An electric heater is used to transfer heat energy to the evaporator. After the water droplets from the high-pressure water pump come into contact with the high-temperature surface of the evaporator, they are directly vaporized into high-temperature, high-pressure water vapor, instantly generating high-temperature, high-pressure water vapor, reducing the patient's preheating waiting time.

[0025] Compared with existing fumigation therapy equipment, the fumigation equipment of the present application has significant advantages such as low energy consumption, fast steam generation speed, low equipment use loss rate and easy control of the drug vapor generation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a fumigation device provided in a specific embodiment of the utility model;

[0028] Figure 2 The atomizing nozzle structure diagram of the atomizer;

[0029] Figure 3 The overall structure diagram of the steam generator;

[0030] Figure 4 This is the internal structure diagram of the steam generator;

[0031] Figure 5 This is the block diagram of the double closed-loop control system for fumigation equipment;

[0032] Figure 6 This is the structural block diagram of the PID control system.

[0033] The following are marked in the accompanying drawings:

[0034] Water container 1, medicine liquid container 2, atomizer 3, first temperature sensor 4, second temperature sensor 5, steam generator 6, high-pressure water pump 7, first filter 8, first solenoid valve 9, second solenoid valve 10, second filter 11, medicine liquid pump 12, adjustment needle 31, high-pressure gas inlet 32, atomization steam outlet 33, medicine liquid water inlet 34, main body 35, bracket 60, heater 61, water inlet 62, water vapor outlet 63, drain valve 64, water collecting box 65, sewage tank 66, evaporator 67. DETAILED DESCRIPTION

[0035] The core of the utility model is to provide a fumigation device, which has the remarkable advantages of low energy consumption, fast steam generation speed and the like.

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Please refer to Figures 1 to 6 In the present application, the heater 61 transfers heat energy to the evaporator 67 of a special structure. After the water from the high-pressure water pump 7 contacts the high-temperature surface of the evaporator 67, it is directly vaporized into high-temperature, high-pressure water vapor. The high-speed water vapor impacts the drug liquid and decomposes it into drug mist mixed droplets. The high-temperature water vapor continues to heat and raise the temperature of the drug mixed droplets, and produces a spray of fine droplet size through the atomizer 3.

[0038] In a specific embodiment, the fumigation equipment provided by the utility model includes a water vapor generation system, a liquid medicine delivery system and an atomizer 3;

[0039] The water vapor generation system includes a high-pressure water pump 7 whose water inlet is connected to a water source, a steam generator 6 whose water inlet 62 is connected to a water outlet of the high-pressure water pump 7, a water vapor outlet 63 of the steam generator 6 is connected to an atomizing nozzle high-pressure gas inlet 32 ​​of the atomizer 3, and the steam generator 6 includes an evaporator 67 and a heater 61 installed on the evaporator 67;

[0040] The liquid medicine delivery system includes a liquid medicine pump 12 whose liquid inlet is connected to a liquid medicine source, and whose liquid outlet is connected to a liquid inlet of the atomizer 3 .

[0041] In the above structure, the fumigation equipment includes a water vapor generation system, a liquid medicine delivery system and an atomizer 3. The water vapor generation system includes a high-pressure water pump 7 and a steam generator 6. The water inlet of the high-pressure water pump 7 is connected to a water source. Water is contained in a water container 1, that is, the water outlet of the water container 1 is connected to the water inlet of the high-pressure water pump 7. Water enters the high-pressure water pump 7 from the water container 1, and the high-pressure water pump 7 pressurizes the water. The water inlet 62 of the steam generator 6 is connected to the water outlet of the high-pressure water pump 7. The steam generator 6 includes an evaporator 67 and a heater 61. The heater 61 is an electric heater 61 installed on the evaporator 67. The heater 61 transfers heat energy to the evaporator 67 of a special structure. When water droplets contact the heater 61 object, the temperature of the heater 61 is much higher than the boiling point of the water droplets, so that the heat can be quickly transferred to the entire water droplet, thereby vaporizing the water droplet instantly. The water from the high-pressure water pump 7 flows into the interior of the evaporator 67 through the water inlet. Since a heater 61 is provided inside the evaporator 67, the water from the high-pressure water pump 7 directly vaporizes into high-temperature, high-pressure water vapor after contacting the high-temperature surface of the evaporator 67. Since the shell of the steam generator 6 is a fully enclosed container, the water vapor outlet 63 of the steam generator 6 is connected to the high-pressure gas inlet 32 ​​of the atomizing nozzle of the atomizer 3, and the high-temperature, high-pressure water vapor flows from the water vapor outlet 63 to the atomizer 3.

[0042] The liquid medicine delivery system includes a liquid medicine pump 12, the liquid medicine pump 12 has a liquid inlet connected to a liquid medicine source, and the liquid medicine source is contained in a liquid medicine container 2, that is, the water outlet of the liquid medicine container 2 is connected to the liquid inlet of the liquid medicine pump 12, and the liquid medicine enters the liquid medicine pump 12, and the liquid medicine pump 12 pressurizes the liquid medicine. The liquid outlet of the liquid medicine pump 12 is connected to the liquid inlet of the atomizer 3, and the liquid medicine enters the atomizer 3. Inside the atomizing nozzle of the atomizer 3, high-speed water vapor impacts the liquid medicine, generating high friction on the liquid surface, causing the liquid medicine to decompose into mixed droplets of drug mist, and the high-temperature water vapor continues to heat the mixed droplets of the drug to generate a fine droplet-sized spray through the atomizer 3, which is sprayed on the treatment part of the patient's body, thereby improving the drug treatment effect.

[0043] It should be noted that traditional fumigation directly vaporizes the mixed liquid of water and drug liquid, and uses instruments to analyze the steam composition, and the drug molecules are basically zero. With the fumigation equipment of the present application, even if the drug liquid pump 12 is not running, it can be atomized into drug mist mixed liquid droplets by relying on the siphon phenomenon of the atomizing nozzle. The rotation speed of the drug liquid pump 12 has the function of adjusting the density of the drug mist mixed liquid droplets.

[0044] The electric heater 61 is used to transfer heat energy to the evaporator 67. After the water droplets from the high-pressure water pump 7 contact the high-temperature surface of the evaporator 67, they are directly vaporized into high-temperature, high-pressure water vapor, instantly generating high-temperature, high-pressure water vapor, thereby reducing the patient's preheating waiting time.

[0045] Compared with existing fumigation therapy equipment, the fumigation equipment of the present application has significant advantages such as low energy consumption, fast steam generation speed, low equipment use loss rate and easy control of the drug vapor generation process.

[0046] The above-mentioned fumigation equipment is only a preferred solution and is not limited to it. On this basis, targeted adjustments can be made according to actual needs to obtain different implementation methods. A first temperature sensor 4 is provided next to the atomizing steam outlet 33 of the atomizer 3, and a second temperature sensor 5 for measuring the temperature transmitted from the heater 61 to the evaporator 67 is provided inside the steam generator 6. The first temperature sensor 4, the second temperature sensor 5 and the heater 61 are electrically connected to the first controller, and the liquid medicine pump 12 and the high-pressure water pump 7 are electrically connected to the second controller.

[0047] In a specific embodiment, a first temperature sensor 4 is provided beside the atomizing steam outlet 33 of the atomizer 3, and a second temperature sensor 5 is provided inside the steam generator 6, which is used to measure the temperature transmitted from the heater 61 to the evaporator 67. The first temperature sensor 4, the second temperature sensor 5 and the heater 61 are electrically connected to the first controller, and the liquid medicine pump 12 and the high-pressure water pump 7 are electrically connected to the second controller. The first temperature sensor 4, the second temperature sensor 5, the actuator high-pressure water pump 7 and the heater 61 together form a double closed-loop PID control system, which realizes accurate control of the flow rate and temperature of the mixed droplets of the atomized liquid medicine, and reduces the risk of steam scald.

[0048] The double closed-loop control system uses two PID controllers to control a pair of primary and secondary objects, where the primary object is the object to be controlled in the end. The feedback loop in the double closed-loop control system is called the inner loop, which is mainly responsible for monitoring and adjusting the actual output of the system to ensure the system's fast response speed, high accuracy, and optimize the selection of appropriate parameters; the outer feedback loop is called the outer loop, which is responsible for controlling the stability of the system. Under the condition of ensuring the accuracy and response speed of the inner loop control of the system, the output signal is compared with the reference input signal, and the PID control algorithm is used to adjust the output signal of the system to achieve stability.

[0049] like Figure 5 As shown, the inner loop of the double closed-loop control system of the fumigation equipment controls the power of the heater 61, and the outer loop controls the speed of the high-pressure water pump 7. The water vapor flow rate is a control target, and the atomizer 3 is controlled to produce drug mixed droplets. The second controller controls the speed of the high-pressure water pump 7, and a calculation is made based on the offset value of the first temperature sensor 4 of the drug mixed droplets and the set temperature value; the first controller controls the power of the heater 61, and another calculation is made based on the output of the first controller and an offset of the second temperature sensor 5 of the evaporator 67; the inner loop sensor controls the power of the heater 61, and the outer loop sensor controls the speed of the high-pressure water pump 7, which constitutes the control process of the double closed-loop control system.

[0050] Figure 6 This is the structural block diagram of the PID control system. PID control has the advantages of simple principle, strong robustness and wide applicability. The basic principle is to measure the error between the actual output of the control system and the expected output, calculate the control quantity based on the three parameters of proportion, integration and differentiation, adjust the system input to make the output as close to the expected value as possible, form a control deviation based on the given value and the actual output value, and form the control quantity through linear combination of the deviation according to proportion, integration and differentiation to control the controlled object.

[0051] Proportional term kp: By multiplying the error by a proportional constant, a control quantity is obtained, which is proportional to the error. The function of the kp term is to make the control quantity and the error linearly related. The size of the proportional constant determines the response speed and stability of the system.

[0052] Integral term ki / S: By multiplying the error by an integral constant, a control quantity is obtained, which is proportional to the sum of the error integrals. The function of the ki / S term is to eliminate the persistence of the error and prevent the system from being in a steady-state error state.

[0053] Differential term kd S: By multiplying the error by a differential constant, a control quantity is obtained, which is proportional to the rate of change of the error. The function of the kd S term is to eliminate the instantaneous change of the error and enhance the stability and control accuracy of the system.

[0054] The combined effect of the three terms can quickly and accurately adjust the system input according to the error size, persistence and rate of change, so that the output value can stably reach the desired state. PID controllers usually adjust the proportional, integral and differential constants of the three terms according to the specific application and system requirements to achieve the best control effect.

[0055] In another more reliable embodiment, based on any of the above embodiments, the water vapor generation system further includes a first solenoid valve 9 and a first filter 8, the water source is connected to one end of the first solenoid valve 9, the other end of the first solenoid valve 9 is connected to the water inlet of the first filter 8, and the water outlet of the first filter 8 is connected to the water inlet of the high-pressure water pump 7;

[0056] The medicine liquid delivery system also includes a second solenoid valve 10 and a second filter 11. The medicine liquid source is connected to one end of the second solenoid valve 10, the other end of the second solenoid valve 10 is connected to the water inlet of the second filter 11, and the water outlet of the second filter 11 is connected to the water inlet of the medicine liquid pump 12.

[0057] In one embodiment, the control method of the fumigation equipment is to operate the control panel to start the fumigation equipment operation, the first solenoid valve 9 and the second solenoid valve 10 are turned on, the liquid in the container flows in the pipeline, and the solenoid valve controls the on and off of the pipeline. The liquid in the container flows through the corresponding filters to filter out impurities in the liquid. The heater 61 in the steam generator 6 starts to heat, and the value of the second temperature sensor 5 is detected to perform PID temperature control on the heater 61 to determine whether the temperature of the heater 61 is greater than or equal to the vaporization temperature value of the heater 61. If so, the high-pressure water pump 7 runs at a low speed, and the steam generator 6 generates high-pressure and high-temperature gas, which passes through the atomizer 3 and blows to the first temperature sensor 4 next to it. The value of the first temperature sensor 4 is detected to perform PID speed control on the speed of the high-pressure water pump 7 to determine whether the temperature of the first temperature sensor 4 is within the set value range. If so, the liquid medicine pump 12 starts to run, and the speed of the liquid medicine pump 12 is proportionally adjusted according to the speed of the high-pressure water pump 7, and the liquid medicine and the high-temperature and high-pressure steam are atomized into a gas-liquid mixture with a suitable temperature inside the air nozzle.

[0058] In another more reliable embodiment, based on any of the above embodiments, the heater 61 includes an electric heating tube and an electric furnace plate, the electric heating tube is inside the electric furnace plate, the surface of the electric furnace plate is in contact with the bottom surface of the evaporator 67, and the axis of the electric heating tube is parallel to the surface of the electric furnace plate.

[0059] In one embodiment, the heater 61 of the steam generator 6 is an electric heater 61 assembly, which includes an electric heating tube and an electric furnace plate. The electric heating tube is inside the electric furnace plate, and the heat generated by the electric heating tube is transferred to the electric furnace plate. Since the electric furnace plate is tightly fixed to the evaporator 67, the contact area between the electric furnace plate and the bottom surface of the evaporator 67 is large and fits tightly, and the electric furnace plate transfers the heat to the evaporator 67 evenly.

[0060] At the same time, the axis of the electric heating tube is parallel to the surface of the electric furnace plate, and the axis of the electric heating tube is longer, which increases the heating range of the electric furnace plate and accelerates the heating speed.

[0061] In another more reliable embodiment, based on any one of the above embodiments, a bracket 60 is provided on the bottom surface of the evaporator 67 , and the heater 61 is built into the middle space of the bracket 60 .

[0062] In one embodiment, brackets 60 are provided at the four corners of the bottom surface of the evaporator 67, and the brackets 60 support the evaporator 67 so that the evaporator 67 is in a horizontal position. The middle of the bracket 60 is a cavity, and the heater 61 is built in the middle space of the bracket 60. The heater 61 does not occupy additional space, has a compact structure, and reduces the volume of the fumigation equipment.

[0063] In another more reliable embodiment, based on any one of the above embodiments, an adjusting needle 31 is provided at the upper end of the main body 35 of the atomizer 3, an atomizing steam outlet 33 is provided at the lower end of the main body 35, a high-pressure gas inlet 32 ​​connected to the water vapor outlet 63 of the steam generator 6 is provided on one side of the main body 35, and a liquid medicine inlet 34 connected to the water outlet of the liquid medicine pump 12 is provided on the other side of the main body 35.

[0064] In a specific embodiment, Figure 2 It is a structural diagram of the atomizing nozzle of the atomizer 3. An adjusting needle 31 is provided at the upper end of the main body 35 for adjusting the atomizing flow rate of the liquid medicine. The high-speed water vapor can easily penetrate the low-speed liquid medicine jet, causing the liquid medicine to deform and squeeze, and produce fine droplets.

[0065] A high-pressure gas inlet 32 ​​is provided on one side of the main body 35, which is connected to the water vapor outlet 63 of the steam generator 6. A liquid medicine water inlet 34 is provided on the other side of the main body 35, which is connected to the water outlet of the liquid medicine pump 12, so that the continuous liquid medicine is dispersed and mixed by the gas at the gas-liquid contact point in the internal channel of the main body 35, and a jet is formed at the atomized steam outlet 33 for ejection.

[0066] The special internal design of the atomizer 3 nozzle can make the liquid and gas mix evenly and produce a spray with a fine droplet size. By increasing the gas pressure or reducing the liquid pressure, a finer droplet spray can be obtained, resulting in a higher gas flow rate to liquid flow rate ratio. The adjustable atomizing nozzle can adjust the liquid flow rate and can also produce the required spray without changing the air pressure and liquid pressure. Therefore, it has strong adaptability.

[0067] In another more reliable embodiment, based on any of the above embodiments, the upper surface of the evaporator 67 has a conical protrusion, and a circle of sewage trough 66 is provided at the connection between the bottom of the conical protrusion and the upper surface of the evaporator 67, and the sewage trough 66 is connected to the water collecting box 65.

[0068] In a specific embodiment, the upper surface of the evaporator 67 is in a conical shape, forming a conical protrusion to increase the water vaporization surface area.

[0069] Although most of the impurities have been removed by filtering the water through the filter, there is still a small amount of impurities in the filtered water, which forms scale on the surface of the heater 61. The heater 61 is heated by utilizing the high-temperature descaling principle. When the temperature rises to the descaling and dissolving temperature, the scale becomes a powder state. The high-pressure water column flushes the surface of the heater 61, carrying away the scale and discharging it out of the shell through the drain valve 64.

[0070] A sewage trough 66 is provided on the lower side of the conical protrusion. Specifically, a circle of sewage trough 66 is formed at the connection between the bottom of the conical protrusion and the upper surface of the evaporator 67. The scale on the surface of the conical protrusion falls into the sewage trough 66 along the conical surface of the conical protrusion after high-temperature decomposition, and is discharged into the water collecting box 65 through high-pressure cleaning water flow to reduce surface scaling.

[0071] In another more reliable embodiment, based on any one of the above embodiments, a water collecting box 65 is arranged on one side of the evaporator 67, the height of the water collecting box 65 is lower than the height of the sewage tank 66, the sewage tank 66 has a notch at the position corresponding to the water collecting box 65, and the other side of the water collecting box 65 is connected to the sewage valve 64 through a pipe.

[0072] In a specific embodiment, the water collecting box 65 is arranged on one side of the evaporator 67, and can be fixed on the side wall of the evaporator 67 or the bracket 60. The sewage tank 66 has a gap at the position corresponding to the water collecting box 65, and water flows into the water collecting box 65 below along the gap, so that the sewage in the sewage tank 66 is gathered in the water collecting box 65. The water collecting box 65 is connected to the sewage valve 64 through a pipeline. The sewage valve 64 can be a solenoid valve, and the sewage is discharged by controlling the sewage valve 64.

[0073] In another more reliable embodiment, based on any one of the above embodiments, the second temperature sensor 5 is arranged on one side of the evaporator 67, the water inlet 62 of the steam generator 6 is arranged at the center position of the upper surface of the conical protrusion, and the water vapor outlet 63 of the steam generator 6 is arranged on the side above the conical protrusion.

[0074] In a specific embodiment, a second temperature sensor 5 is provided on one side of the evaporator 67, and a water inlet 62 is provided above the conical protrusion, which is located at the center of the cone of the evaporator 67. The water inlet 62 of the steam generator 6 is connected to the conical protrusion, and water directly enters the interior of the evaporator 67, the heating area is concentrated, and heating is performed quickly. After the water of the high-pressure water pump 7 contacts the high-temperature surface of the evaporator 67, it is directly vaporized into high-temperature and high-pressure water vapor. Since the shell of the steam generator 6 is a fully enclosed container, the water vapor outlet 63 is provided on the shell. The water vapor outlet 63 of the steam generator 6 is connected to the high-pressure gas inlet 32 ​​of the atomizing nozzle of the atomizer 3. The high-temperature and high-pressure water vapor is temporarily stored in the shell cavity and flows from the water vapor outlet 63 to the atomizer 3. Water and water vapor form two paths, which are separated from each other and do not interfere with each other.

[0075] In another more reliable embodiment, based on any one of the above embodiments, an overflow port is provided on one side of the evaporator 67, and the overflow port is connected to the water collecting box 65, so that water can flow out from the evaporator 67 to prevent the water in the evaporator 67 from exceeding the set height. Excess water is discharged from the overflow port into the water collecting box 65 and discharged by the drain valve 64.

[0076] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can refer to each other. The fumigation equipment provided by the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the utility model will not be limited to the embodiments shown in this article, but will comply with the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A fumigation device, characterized in that: It includes a water vapor generation system, a liquid medicine delivery system and an atomizer (3); The water vapor generation system comprises a high-pressure water pump (7) whose water inlet is connected to a water source, a steam generator (6) whose water inlet (62) is connected to a water outlet of the high-pressure water pump (7), a water vapor outlet (63) of the steam generator (6) is connected to an atomizing nozzle high-pressure gas inlet (32) of an atomizer (3), and the steam generator (6) comprises an evaporator (67) and a heater (61) mounted on the evaporator (67); The liquid medicine delivery system comprises a liquid medicine pump (12) whose liquid inlet is connected to a liquid medicine source, and whose liquid outlet is connected to a liquid inlet of the atomizer (3).

2. The fumigation equipment according to claim 1, characterized in that: A first temperature sensor (4) is provided beside the atomizing steam outlet (33) of the atomizer (3); a second temperature sensor (5) for measuring the temperature transmitted from the heater (61) to the evaporator (67) is provided inside the steam generator (6); the first temperature sensor (4), the second temperature sensor (5) and the heater (61) are electrically connected to a first controller; and the liquid medicine pump (12) and the high-pressure water pump (7) are electrically connected to a second controller.

3. The fumigation equipment according to claim 2, characterized in that: The water vapor generation system further comprises a first electromagnetic valve (9) and a first filter (8), a water source is connected to one end of the first electromagnetic valve (9), the other end of the first electromagnetic valve (9) is connected to a water inlet of the first filter (8), and a water outlet of the first filter (8) is connected to a water inlet of a high-pressure water pump (7); The liquid medicine delivery system further comprises a second solenoid valve (10) and a second filter (11); the liquid medicine source is connected to one end of the second solenoid valve (10), the other end of the second solenoid valve (10) is connected to the water inlet of the second filter (11), and the water outlet of the second filter (11) is connected to the water inlet of the liquid medicine pump (12).

4. The fumigation equipment according to claim 2, characterized in that: The heater (61) comprises an electric heating tube and an electric furnace plate, wherein the electric heating tube is inside the electric furnace plate, the surface of the electric furnace plate is in contact with and connected to the bottom surface of the evaporator (67), and the axis of the electric heating tube is parallel to the surface of the electric furnace plate.

5. The fumigation equipment according to claim 4, characterized in that: A bracket (60) is provided on the bottom surface of the evaporator (67), and the heater (61) is built into the middle space of the bracket (60).

6. The fumigation equipment according to claim 2, characterized in that: The upper end of the main body (35) of the atomizer (3) is provided with an adjusting needle (31), the lower end of the main body (35) is provided with an atomizing steam outlet (33), one side of the main body (35) is provided with a high-pressure gas inlet (32) connected to the water vapor outlet (63) of the steam generator (6), and the other side of the main body (35) is provided with a liquid medicine water inlet (34) connected to the water outlet of the liquid medicine pump (12).

7. The fumigation equipment according to any one of claims 2 to 6, characterized in that: The upper surface of the evaporator (67) is provided with a conical protrusion, and a circle of sewage grooves (66) is provided at the connection between the bottom of the conical protrusion and the upper surface of the evaporator (67), and the sewage grooves (66) are connected to the water collecting box (65).

8. The fumigation equipment according to claim 7, characterized in that: The water collecting box (65) is arranged on one side of the evaporator (67); the height of the water collecting box (65) is lower than the height of the sewage tank (66); the sewage tank (66) has a notch at a position corresponding to the water collecting box (65); and the other side of the water collecting box (65) is connected to the sewage valve (64) through a pipeline.

9. The fumigation equipment according to claim 7, characterized in that: The second temperature sensor (5) is arranged on one side of the evaporator (67), the water inlet (62) of the steam generator (6) is arranged at the center of the upper surface of the conical protrusion, and the water vapor outlet (63) of the steam generator (6) is arranged on the side above the conical protrusion.

10. The fumigation equipment according to claim 7, characterized in that: An overflow port is provided on one side of the evaporator (67), and the overflow port is in communication with the water collecting box (65).

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