Mosquito-repellent incense liquid raw material purification system and mosquito-repellent incense liquid production system

Abstract

The utility model discloses a mosquito-repellent incense liquid raw material purification system and a mosquito-repellent incense liquid production system. The mosquito-repellent incense liquid raw material purification system comprises a first liquid storage tank, a purification device and a second liquid storage tank which are communicated in sequence, the bottom of the first liquid storage tank is communicated with a spherical container through a first pipeline, the lower end of the spherical container is communicated with the outside through a second pipeline, and a first switch and a second switch are arranged on the first pipeline and the second pipeline respectively; the purifying device comprises a molecular sieve filtering device, an activated carbon fiber filtering device and a PP cotton filtering device which are communicated in sequence; the molecular sieve filtering device is communicated with the first pipeline through a third pipeline; a third switch is arranged on the third pipeline; the PP cotton filtering device is communicated with the second liquid storage tank through a fourth pipeline, a heater is arranged on the fourth pipeline, and an atomizing nozzle is arranged at the tail end of the fourth pipeline; and an air extractor is arranged at the top of the second liquid storage tank. According to the scheme, through the spherical container, the purifying device and the air extracting device, impurities in mosquito-repellent incense liquid raw materials can be removed, and the problem that mosquito-repellent incense liquid is not normal in smell is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mosquito-repellent liquid purification, and in particular relates to a mosquito-repellent liquid raw material purification system and a mosquito-repellent liquid production system. Background Art

[0002] The original drug, mother liquor, solvent and auxiliary agent used in the production of mosquito coil liquid products all contain different amounts of impurity components, which contain different amounts of characteristic odor components such as aromatic hydrocarbons and sulfides, and all show different degrees of characteristic odors. The mosquito coil liquid produced by them will also show a certain odor, that is, there is a problem of odor. The electric mosquito coil liquid absorbs the liquid through the core rod and climbs to the top of the core rod. The heater heats the upper end of the core rod so that the electric mosquito coil liquid evaporates into the room to repel mosquitoes. The use time of the electric mosquito coil liquid is basically in the range of 30 days to 90 days; because some impurities in the raw materials are volatile, when they climb to the upper end of the core rod during use, they are heated and volatilized into the air, producing unpleasant odors; another part of the impurity components that are not easy to volatilize are deposited on the upper end of the core rod, causing it to produce a burnt body odor after being heated.

[0003] Secondly, when switching production between different scent types of electric mosquito-repellent liquid, due to factors such as unclean cleaning of the mixing pot, accumulation of liquid residue on the inner wall of the mixing pot, and difficulty in discharging odor from the space inside the mixing pot, the two batches of different types of electric mosquito-repellent liquid have a problem of mixed odors, resulting in deviations in the odor performance of the next batch of electric mosquito-repellent liquid. Utility Model Content

[0004] The utility model aims to overcome the existing technical defects and provide a mosquito-repellent liquid raw material purification system, which removes impurities in the mosquito-repellent liquid raw material through the cooperation of a spherical container, a purification device and an exhaust device, thereby solving the problem of the existing mosquito-repellent liquid having an improper odor.

[0005] In the first aspect, in order to solve the above technical problems, the utility model provides a mosquito-repellent liquid raw material purification system, a mosquito-repellent liquid raw material purification system, comprising:

[0006] The first liquid storage tank is used to store and keep mosquito coil liquid raw materials still;

[0007] A spherical container, the upper end of which is connected to the bottom of the first liquid storage tank through a first pipe, the lower end of which is connected to the outside through a second pipe, and a first switch and a second switch are respectively provided on the first pipe and the second pipe;

[0008] A purification device, the purification device comprising a molecular sieve filter device, an activated carbon fiber filter device and a PP cotton filter device which are connected in sequence from front to back; the inlet end of the molecular sieve filter device is connected to the first pipe through a third pipe and is located above the first switch, and the inlet end of the third pipe is provided with a third switch; the outlet end of the PP cotton filter device is connected to a fourth pipe, and a heater is provided on the fourth pipe;

[0009] At least one second liquid storage tank, the top of which is provided with an air extraction device; the end of the fourth pipe is inserted into the second liquid storage tank from top to bottom, and the end of the fourth pipe is provided with an atomizing nozzle.

[0010] Furthermore, the mosquito coil liquid raw material purification system includes at least two purification devices arranged in parallel, the inlet end of each purification device is connected to the third pipeline, and the outlet end is connected to the fourth pipeline; and a fourth switch is provided at the inlet end of each purification device.

[0011] Furthermore, the third pipeline is also provided with a flow valve located behind the third switch.

[0012] Furthermore, the height of the top of the second liquid storage tank on the horizontal plane is lower than the height of the bottom of the first liquid storage tank on the horizontal plane; and the bottom of the first liquid storage tank is a conical structure.

[0013] Furthermore, the vacuum device is a vacuum pump, which is connected to the top of the second liquid storage tank through a sixth pipe. The sixth pipe is composed of multiple sections of sleeves with diameters decreasing from bottom to top, and a stainless steel mesh is provided between two adjacent sections of the sleeves.

[0014] Furthermore, the heater is a far-infrared electric heater or a PTC heater; the atomizing nozzle is provided with a plurality of spray holes with an aperture of 300-500 μm; and the switches are all solenoid valves.

[0015] In the second aspect, the utility model also provides a mosquito-repellent liquid production system, comprising at least one mosquito-repellent liquid raw material purification system as described in any one of the first aspects, and also comprising a batching tank with a sealing cover and a filtering device, wherein a stirring paddle is provided in the batching tank, and the bottom of the second liquid storage tank in the mosquito-repellent liquid raw material purification system is connected to the top of the batching tank, and a water pump is provided between the second liquid storage tank and the batching tank; a liquid outlet pipe connected to the filtering device is provided at the bottom of the batching tank, and a fifth switch is provided on the liquid outlet pipe.

[0016] Furthermore, the mosquito-repellent liquid production system includes at least two mosquito-repellent liquid raw material purification systems, and the second liquid storage tanks in all mosquito-repellent liquid raw material purification systems are connected to the batching tank in parallel. The bottom of each second liquid storage tank is provided with a connected sixth switch and the water pump in sequence, and the liquid outlets of all water pumps are connected in parallel and connected to the top of the batching tank through a liquid inlet pipe.

[0017] Furthermore, an annular cleaning pipe is provided at the inner upper end of the batching tank, a gap is provided between the outer periphery of the cleaning pipe and the inner wall of the batching tank, a plurality of first spray holes arranged toward the inner wall of the batching tank are provided at intervals on the outer periphery of the cleaning pipe, and a plurality of second spray holes arranged toward the stirring paddle are provided at intervals on the inner periphery of the cleaning pipe; a first branch and a second branch are provided in parallel at the end of the liquid inlet pipe, and a seventh switch and an eighth switch are provided on the first branch and the second branch respectively; the end of the first branch is inserted into the batching tank from top to bottom, and the end of the second branch is inserted into the batching tank from top to bottom and is connected with the cleaning pipe; the liquid outlet pipe is also provided with a vacuum pump connected thereto.

[0018] Furthermore, the filter device includes a first filter device and a second filter device which are connected in sequence from front to back, the first filter device is a polypropylene non-woven filter bag, and the second filter device is a polypropylene folded filter element.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, firstly, the mosquito-repellent liquid raw material is stored in a first liquid storage tank, and after standing for a period of time, impurities with a larger specific gravity in the liquid are deposited in the bottom area of ​​the liquid storage tank, and then by setting a spherical container and an upper and lower double switch, the high specific gravity impurities deposited at the bottom of the liquid storage tank can be discharged into the spherical container, so as to achieve the purpose of quantitatively removing impurities. After removing the high specific gravity impurities, the first switch is closed and the third switch is opened, so that the liquid enters the purification device through a pipeline for filtration and purification, and the impurities in the liquid are further filtered, and then sprayed into the second liquid storage tank through an atomizing nozzle, and the atomized liquid is settled in the second storage tank, and the low molecular weight impurity gas floats on the top of the second storage tank. At this time, the exhaust device is regularly opened to suck out the floating low molecular weight impurity gas, so as to complete the purification process of the mosquito-repellent liquid raw material, remove the impurities in the mosquito-repellent liquid raw material, and solve the problem of the bad smell of the existing mosquito-repellent liquid.

[0021] The mosquito-repellent liquid production system provided by the utility model, when producing mosquito-repellent liquid in a batching tank, in addition to introducing mosquito-repellent liquid raw materials (such as solvents, mother liquor, etc.) through a mosquito-repellent liquid raw material purification system, also manually adds some small materials (such as flavors, stabilizers, etc.), and the impurities introduced by the small material addition and batching tools can be solved through a filtering device at the material discharge point, thereby avoiding the problem of improper odor of the mosquito-repellent liquid.

[0022] Secondly, after the liquid medicine in the batching tank is emptied, when the variety is switched or cleaning is required, the next batch of liquid (solvent) to be produced stored in the second storage tank is pumped into the batching tank through the second branch, and the liquid enters the cleaning pipe at the upper end of the batching tank. The cleaning pipe is used to achieve full coverage spray flushing of the inner wall and cleaning of the stirring paddle. After the cleaning liquid is emptied, the sealing cover above the batching tank is closed, and the vacuum device is turned on to discharge the liquid remaining on the inner wall of the batching tank and the gas in the batching tank, so as to thoroughly clean the batching tank to ensure its cleanliness and avoid the problem of odor deviation caused by mixing of two batches of different varieties of mosquito coil liquid.

[0023] Additional aspects and advantages of the present invention will be partially given in the following description, which will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 Schematic diagram of the connection of the mosquito coil liquid raw material purification system in the embodiment;

[0026] Figure 2 It is a cross-sectional view of a molecular sieve filter device, an activated carbon fiber filter device, and a PP cotton filter device in the embodiment;

[0027] Figure 3 is a cross-sectional view of the sixth pipeline in the embodiment;

[0028] Figure 4 The diagram is a connection diagram of the mosquito coil liquid production system in Example 2;

[0029] Figure 5 This is a front schematic diagram of the cleaning tube in Example 2;

[0030] Figure 6 This is a top sectional view of the cleaning tube in Example 2. DETAILED DESCRIPTION

[0031] In order to more fully understand the technical content of the present invention, the present invention will be further introduced and explained in conjunction with the accompanying drawings and specific embodiments below; it should be noted that descriptions such as "first" and "second" in the text are used to distinguish different components, etc., and do not represent the order of precedence, nor do they limit the "first" and "second" to different types.

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0033] Example 1

[0034] like Figures 1 to 3 As shown, the mosquito-repellent liquid raw material purification system shown in this embodiment includes a first liquid storage tank 1, a spherical container 2, a purification device and a second liquid storage tank 3: wherein the first liquid storage tank 1 is used to store and place the mosquito-repellent liquid raw material; the upper end of the spherical container 2 is connected to the bottom of the first liquid storage tank 1 through a first pipe 4, and the lower end is connected to the outside through a second pipe 5, and a first switch 6 and a second switch 7 are respectively provided on the first pipe 4 and the second pipe 5; the purification device includes a molecular sieve filter device 8, an activated carbon fiber filter device 9 and a PP cotton filter device 10 connected in sequence from front to back; the inlet end of the molecular sieve filter device 8 is connected to the first pipe 4 through a third pipe 11 and is located above the first switch 6, and the inlet end of the third pipe 11 is provided with a third switch 12; the outlet end of the PP cotton filter device 10 is connected to a fourth pipe 13, a heater 14 is provided on the fourth pipe 13, the end of the fourth pipe 13 is inserted from top to bottom into the second liquid storage tank 3, and an atomizing nozzle 15 is provided at the end of the fourth pipe 13; the top of the second liquid storage tank 3 is also provided with an exhaust device 16.

[0035] The working principle of the above-mentioned mosquito-repellent liquid raw material purification system is as follows: initially, all switches are in a closed state, and the mosquito-repellent liquid raw material (such as the solvent or mother liquor used to produce the mosquito-repellent liquid) is first loaded into the first liquid storage tank 1 for standing. Generally, after standing for 24 hours or longer, the solid particles and higher density impurities in the tools and raw materials settle at the junction of the lower end tank body of the first liquid storage tank 1 and the first pipeline 4, and then the first switch 6 is opened to discharge the impurities settled at the bottom of the tank body into the spherical container. After the spherical container is full, the first switch 6 is closed and the second switch 7 is opened to discharge the impurities in the spherical container 2 to the outside, thereby achieving the problem of quantitatively eliminating impurities and avoiding the problem of waste caused by the mosquito-repellent liquid raw material being discharged by mistake; at the same time, the third switch 12 can be opened to make the first switch 6 closed and the second switch 7 open. The raw material in a liquid storage tank 1 flows into a purification device and is filtered three times in sequence, and then flows into a second liquid storage tank 3 through a fourth pipe 13 for storage. The slurry is filtered and purified by the purification device to further filter impurities in the slurry. When the raw material flows through the fourth pipe 13, the heater works synchronously to heat the internal raw material temperature to a range of 45°C to 60°C, so that the small molecular impurities in the raw material are heated and vaporized, and then sprayed into the second liquid storage tank through an atomizing nozzle. The atomized liquid settles in the second storage tank, and the low molecular impurity gas floats on the top of the second storage tank. At this time, the exhaust device is regularly opened to suck out the floating low molecular impurity gas, thereby completing the purification process of the mosquito coil liquid raw material to remove impurities in the mosquito coil liquid raw material and solve the problem of the existing mosquito coil liquid having an abnormal smell.

[0036] In one embodiment, the vacuum device 16 preferably adopts a vacuum pump; its working interval is generally controlled at 15 minutes, that is, during the liquid inlet process, vacuum is performed every 15 minutes, and the vacuum pressure is controlled at 0.1-0.2Mpa to avoid excessive pressure from extracting the liquid in the second liquid storage tank.

[0037] In one embodiment, the third pipeline 11 is further provided with a flow valve 17 located behind the third switch 12, which is used to control the flow through the third pipeline 11, thereby controlling the purification efficiency of the purification device; the height of the top of the second liquid storage tank 3 on the horizontal plane is lower than the height of the bottom of the first liquid storage tank 1 on the horizontal plane, so that the potential energy difference between the two tanks can be utilized. After turning on the switch, the liquid in the first liquid storage tank 1 can automatically flow into the second liquid storage tank 2, and in practice, the potential energy difference can be changed by adjusting the height difference between the two tanks to adjust the flow rate of the liquid.

[0038] Preferably, the bottom of the first liquid storage tank 1 is a conical structure, so that impurities in the liquid can be concentrated and settled in the conical structure at the bottom and then discharged outward during the static process.

[0039] In one embodiment, if Figure 3As shown, the vacuum device 16 is connected to the top of the second liquid storage tank 3 through the sixth pipeline 18. The sixth pipeline 18 is composed of a plurality of sleeve sections whose diameters decrease from bottom to top, and a stainless steel mesh 19 is provided between two adjacent sleeve sections. The structure of gradually decreasing diameter and the stainless steel mesh are used to block a small amount of liquid accidentally extracted during vacuuming, thereby avoiding excessive extraction of liquid and causing waste.

[0040] Preferably, the end of the fourth pipe 13 extends inwardly to a position at eight-tenths of the height inside the second liquid storage tank 3 , so that there is a height difference between the end of the fourth pipe 13 and the inlet of the sixth pipe 18 .

[0041] In one embodiment, if Figure 2 As shown, the molecular sieve filter device 8, the activated carbon fiber filter device 9 and the PP cotton filter device 10 all include a tank body 81, a tank cover 82 sealed and covered on the upper end of the tank body in a detachable manner, and a filter element 83 disposed in the tank body. A liquid inlet 84 and a liquid outlet 85 are respectively disposed on both sides of the tank body. The filter element 83 is located between the liquid inlet 84 and the liquid outlet 85, so that the liquid flowing into the tank body 81 through the liquid inlet 84 is filtered by the filter element 83 and then flows out from the liquid outlet 85. The filter element 83 can be replaced and cleaned. It can be understood that the filter element in the molecular sieve filter device 8 is a molecular sieve, the filter element in the activated carbon fiber filter device 9 is an activated carbon fiber, and the filter element of the PP cotton filter device 10 is PP cotton.

[0042] In one embodiment, the mosquito coil liquid raw material purification system includes at least two purification devices arranged in parallel, such as Figure 1 In the three-way purification device, the inlet end of the molecular sieve filter device 8 in each purification device is connected to the third pipe 11, and the outlet end of the PP cotton filter device 10 is connected to the fourth pipe 13; and a fourth switch 20 is provided at the inlet end of each purification device, and the opening and closing of the fourth switch 20 is used to control the operation of each purification device, so as to realize independent control of each purification device, so that multiple purification devices can be used at the same time during use, or only one or two purification devices can be used to facilitate the replacement of the purification devices and maintain the filtering efficiency. In this way, when the filter element in a purification device of a certain route needs to be replaced or cleaned, the purification devices of other routes can continue to perform purification work, so as to achieve the purpose of non-stop use of the purification system during the maintenance of the purification device, thereby improving production efficiency.

[0043] In one embodiment, the heater is a far-infrared electric heater or a PTC heater, which is arranged outside the fourth conduit, and the corresponding fourth conduit is a metal pipe to facilitate heat conduction and heating.

[0044] In one embodiment, the atomizing nozzle 15 is provided with a plurality of spray holes with a diameter of 300-500 μm, so as to atomize the feed liquid into particles of 300-500 μm.

[0045] In one embodiment, there may be multiple second liquid storage tanks connected to the fourth pipeline, and each second liquid storage tank may be connected separately through switch control, so that the purified mosquito coil liquid raw materials can be stored in batches using multiple liquid storage tanks.

[0046] In other embodiments, the upper end of the spherical container is connected to the first pipeline via a transfer tube with a larger upper portion and a smaller lower portion. The transfer tube with a larger upper portion and a smaller lower portion is used to facilitate the precipitation of impurities into the spherical container.

[0047] In other embodiments, all switches are solenoid valves to achieve automatic control of all switches.

[0048] In other embodiments, all pipes are made of metal.

[0049] Example 2

[0050] like Figures 1 to 6 As shown, the utility model also provides a mosquito-repellent liquid production system, including at least one mosquito-repellent liquid raw material purification system as described in Example 1, and also including a batching tank 100 with a sealing cover and a filtering device. The batching tank 100 has a sealing cover, which can be opened to facilitate manual mixing of some small ingredients (such as flavors, stabilizers, etc.). The batching tank 100 is provided with a stirring paddle 101 for stirring and mixing the various components to produce mosquito-repellent liquid. The bottom of the second liquid storage tank 3 in the mosquito-repellent liquid raw material purification system is connected to the top of the batching tank 100, and a filter is provided between the second liquid storage tank 3 and the batching tank 100. A water pump 102 is provided for pumping the liquid in the second liquid storage tank into the batching tank 100; a liquid outlet pipe 103 connected to a filtering device is provided at the bottom of the batching tank 100, and a fifth switch 104 is provided on the liquid outlet pipe 103. When the batching tank 100 is stirring and mixing to make mosquito-repellent liquid, the fifth switch 104 is in a closed state. After stirring, the fifth switch 104 is opened to allow the mosquito-repellent liquid to flow outward and pass through the filtering device, and then flow outward for filling and production after filtration. The filtering device at the discharge point can solve the impurities introduced in the small material delivery and batching tools, and avoid the problem of the mosquito-repellent liquid having an abnormal smell.

[0051] In one embodiment, the mosquito-repellent liquid production system includes at least two mosquito-repellent liquid raw material purification systems, and the second liquid storage tanks 3 in all mosquito-repellent liquid raw material purification systems are connected to the batching tank 100 in a parallel manner, that is, the batching tank 100 is connected to multiple second liquid storage tanks at the same time, and the mosquito-repellent liquid raw materials purified by each mosquito-repellent liquid raw material purification system are controlled to be different. In this way, the solvent and mother liquor for making mosquito-repellent liquid can be introduced into the batching tank respectively for stirring and mixing, and the solvent or mother liquor for making different types of mosquito-repellent liquid can be introduced into the batching tank in batches for production operation, simplifying the back-end production equipment, and a single batching tank can produce different types of mosquito-repellent liquid in batches; at the bottom of each second liquid storage tank 3, a sixth switch 105 and a water pump 102 are connected in sequence, and the sixth switch 105 is used to control the on and off of each second liquid storage tank 3, and the liquid outlets of all water pumps 102 are connected in parallel and connected to the top of the batching tank through the liquid inlet pipe 117.

[0052] In one embodiment, if Figure 5 and Figure 6 As shown, an annular cleaning pipe 106 is provided at the inner upper end of the batching tank 100, a gap is provided between the outer periphery of the cleaning pipe 106 and the inner wall of the batching tank 100, a plurality of first spray holes 107 arranged toward the inner wall of the batching tank 100 are arranged at intervals on the outer periphery of the cleaning pipe 106, and are used for cleaning the inner wall of the batching tank, and a plurality of second spray holes 108 arranged toward the stirring paddle 101 are arranged at intervals on the inner periphery of the cleaning pipe 106, and are used for cleaning the stirring paddle; a first branch 109 and a second branch 108 connected in parallel are provided at the end of the liquid inlet pipe 117. The second branch 110, the first branch 109 and the second branch 110 are respectively provided with a seventh switch 111 and an eighth switch 112; the end of the first branch 109 is inserted into the batching tank 100 from top to bottom, so as to allow the liquid in the second liquid storage tank 3 to enter the batching tank 100, and the end of the second branch 110 is inserted into the batching tank 100 from top to bottom and is connected with the cleaning pipe 106, so that the liquid can be transported to the cleaning pipe through the second branch 110; the liquid outlet pipe 103 is also provided with a vacuum device 113 connected thereto through a pipeline connection. Under normal production conditions, the second branch 110 is in a normally closed state, and only the first branch 109 is used for feeding. When the liquid in the batching tank is emptied and when the variety is switched or cleaning is required, the first branch is closed, and the next batch of liquid (solvent) to be produced stored in the second storage tank is pumped into the batching tank through the second branch. The liquid enters the cleaning pipe at the upper end of the batching tank, and the cleaning pipe is used to achieve full coverage spray flushing of the inner wall and cleaning of the agitator. After the cleaning liquid is emptied, the sealing cover above the batching tank is closed, and the vacuum device is turned on to discharge the liquid remaining on the inner wall of the batching tank and the gas in the batching tank, so that the batching tank is thoroughly cleaned to ensure its cleanliness and avoid the problem of odor deviation caused by mixing of two batches of different varieties of mosquito coil liquid.

[0053] Preferably, a ninth switch 114 is provided on the pipeline connecting the vacuum pump 113 and the liquid outlet pipe 103 .

[0054] In one embodiment, the filter device includes a first filter device 115 and a second filter device 116 connected in sequence from front to back. The first filter device 115 uses a polypropylene non-woven filter bag with a filtration accuracy of 1 μm, and the second filter device 116 uses a polypropylene folded filter element with a filtration accuracy of 0.2 μm.

[0055] In other embodiments, all switches are solenoid valves to achieve automatic control of all switches.

[0056] In other embodiments, the vacuum device 113 preferably adopts a vacuum pump.

[0057] In other embodiments, the first spray hole and the second spray hole both adopt a cross-shaped structure to facilitate the sprayed liquid to scatter in all directions.

[0058] In other embodiments, the sum of the apertures of the first spray holes and the second spray holes is less than or equal to the inner aperture of the spray pipe, so as to ensure the spray pressure and flow rate of each spray hole.

[0059] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A mosquito coil liquid raw material purification system, characterized in that: include: The first liquid storage tank is used to store and keep mosquito coil liquid raw materials still; A spherical container, the upper end of which is connected to the bottom of the first liquid storage tank through a first pipe, the lower end of which is connected to the outside through a second pipe, and a first switch and a second switch are respectively provided on the first pipe and the second pipe; A purification device, the purification device comprising a molecular sieve filter device, an activated carbon fiber filter device and a PP cotton filter device which are connected in sequence from front to back; the inlet end of the molecular sieve filter device is connected to the first pipe through a third pipe and is located above the first switch, and the inlet end of the third pipe is provided with a third switch; the outlet end of the PP cotton filter device is connected to a fourth pipe, and a heater is provided on the fourth pipe; At least one second liquid storage tank, the top of which is provided with an air extraction device; the end of the fourth pipe is inserted into the second liquid storage tank from top to bottom, and the end of the fourth pipe is provided with an atomizing nozzle.

2. The mosquito coil liquid raw material purification system according to claim 1, characterized in that: It comprises at least two purification devices arranged in parallel, the inlet end of each purification device is connected to the third pipeline, and the outlet end is connected to the fourth pipeline; and a fourth switch is provided at the inlet end of each purification device.

3. The mosquito coil liquid raw material purification system according to claim 2, characterized in that: The third pipeline is also provided with a flow valve located behind the third switch.

4. The mosquito-repellent incense liquid raw material purification system according to any one of claims 1 to 3, characterized in that: The height of the top of the second liquid storage tank on the horizontal plane is lower than the height of the bottom of the first liquid storage tank on the horizontal plane; and the bottom of the first liquid storage tank is a conical structure.

5. The mosquito coil liquid raw material purification system according to claim 4, characterized in that: The vacuum device is a vacuum pump, which is connected to the top of the second liquid storage tank through a sixth pipeline. The sixth pipeline is composed of multiple sections of sleeves with diameters decreasing from bottom to top, and a stainless steel mesh is provided between two adjacent sections of the sleeves.

6. The mosquito coil liquid raw material purification system according to claim 1, characterized in that: The heater is a far-infrared electric heater or a PTC heater; the atomizing nozzle is provided with a plurality of spray holes with an aperture of 300-500 μm; and the switches are all electromagnetic valves.

7. A mosquito-repellent liquid production system, characterized in that: It comprises at least one mosquito-repellent liquid raw material purification system as described in any one of claims 1 to 6, and also comprises a batching tank with a sealing cover and a filtering device, wherein a stirring paddle is arranged in the batching tank, the bottom of the second liquid storage tank in the mosquito-repellent liquid raw material purification system is connected to the top of the batching tank, and a water pump is arranged between the second liquid storage tank and the batching tank; the bottom of the batching tank is provided with a liquid outlet pipe connected to the filtering device, and a fifth switch is arranged on the liquid outlet pipe.

8. The mosquito-repellent liquid production system according to claim 7, characterized in that: It comprises at least two mosquito coil liquid raw material purification systems, the second liquid storage tanks in all mosquito coil liquid raw material purification systems are connected with the batching tank in parallel, the bottom of each second liquid storage tank is provided with a sixth switch and the water pump connected in sequence, and the liquid outlets of all water pumps are connected in parallel and connected with the top of the batching tank through a liquid inlet pipe.

9. The mosquito-repellent liquid production system according to claim 8, characterized in that: An annular cleaning pipe is provided at the inner upper end of the batching tank, a gap is provided between the outer periphery of the cleaning pipe and the inner wall of the batching tank, a plurality of first spray holes arranged toward the inner wall of the batching tank are arranged at intervals on the outer periphery of the cleaning pipe, and a plurality of second spray holes arranged toward the stirring paddle are arranged at intervals on the inner periphery of the cleaning pipe; a first branch and a second branch are provided in parallel at the end of the liquid inlet pipe, and a seventh switch and an eighth switch are provided on the first branch and the second branch respectively; the end of the first branch is inserted into the batching tank from top to bottom, and the end of the second branch is inserted into the batching tank from top to bottom and is connected with the cleaning pipe; a vacuum device connected with the liquid outlet pipe is also provided.

10. The mosquito-repellent liquid production system according to claim 9, characterized in that: The filter device comprises a first filter device and a second filter device which are connected in sequence from front to back, the first filter device is a polypropylene non-woven filter bag, and the second filter device is a polypropylene folded filter element.

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