Air emission purification device for down feather production workshop and purification method of air emission purification device

Abstract

The invention relates to the technical field related to air filtration, discloses an air discharge purification device for a down feather production workshop and a purification method of the air discharge purification device, and aims to solve the problem that air containing impurities directly passes through a filter screen, so that the filter screen is quickly accumulated and blocked. A water medium is injected into the purification box at the same time, when the fan pump assembly conveys airflow containing impurities into the buffer base, the airflow blows through the dispersion balls to be dispersed all around, the airflow is guided by the grading groove to be blown to the surface of the water medium in the purification box, and in the process, dust and down chippings in the air do not fly after making contact with water; therefore, the impurities cannot move to the subsequent filter cartridge along with the air flow, accumulation of the impurities on the filter cartridge is further reduced, the filter pressure of the filter cartridge is reduced, and finally the effect of reducing the subsequent filter pressure through air front water filtration is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field related to air filtration, and particularly relates to an air discharge purification device and a purification method for a down production workshop. Background Art

[0002] The air discharge purification device for a down production workshop is an important device to ensure the air quality of the workshop, protect the health of employees, and improve the product quality. Such a device effectively removes dust, down debris, peculiar smell, and harmful gases in the air through a series of efficient technical means, creating a clean environment for production.

[0003] After retrieval, the publication number CN202020965910.4 discloses a down adsorption and separation device for down jacket production, including an adsorption hood installed on a transfer storage box and communicating with the transfer storage box. The transfer storage box is communicated with a recovery main pipe through a recovery branch pipe at the upper end, and the recovery main pipe is communicated with a down recovery box through a recovery fan; the transfer storage box is communicated with a dust removal main pipe through a dust removal branch pipe at the lower end, the dust removal main pipe is communicated with a filter box through a dust removal fan, and a down filter screen is arranged at the connection of the dust removal branch pipe and the transfer storage box.

[0004] It can be seen from this that currently, for the air purification treatment in a down production workshop, it mainly relies on a fan system to forcibly suck the air in the production workshop, and a carefully designed filter screen system is used to effectively filter impurities such as dust and down debris, so as to ensure that the discharged air reaches a relatively pure standard. However, in the actual application process, due to the strong adhesion of impurities such as down and dust, they will gradually accumulate on the filter screen, forming a thick layer of dirt. This layer of dirt will not only block the pores of the filter screen, reduce its air permeability, but also seriously affect the filtering performance of the filter screen, greatly reducing the air purification effect. In the long run, it will not only lead to a decline in the air quality of the down production workshop, but also pose a potential threat to the health of employees and the safe operation of production equipment. Summary of the Invention

[0005] The present invention proposes an air discharge purification device and a purification method for a down production workshop. The device has the characteristic of reducing the subsequent filtration pressure through pre-air water filtration, aiming to solve the problem of rapid accumulation and blockage caused by the direct passage of air containing impurities through the filter screen in the above background art.

[0006] To achieve the above object, the present invention adopts the following technical solution: An air emission purification device for a down production workshop, comprising: a purification box, with a water medium injected into the inner cavity in the middle, a blower pump assembly installed at the inner bottom, and the blower pump assembly sucks the air in the workshop through an intake pipe and outputs it to a buffer seat through an exhaust pipe; an activated carbon filtration component is fixed to the inner top of the purification box, and a silencer pipe is located above the activated carbon filtration component; the buffer seat is fixed in the middle of the inner side of the purification box, and a dispersion hemisphere for diverging the air flow in all directions is fixedly installed at the top of the buffer seat, and grading grooves for guiding the air flow towards the water medium are provided around the top; a particle filtration component is fixedly installed in the middle of the inner side of the purification box between the buffer seat and the activated carbon filtration component, and a filter cartridge is movably installed on one side of the surface of the particle filtration component, and filter holes are provided on the outer side of the filter cartridge.

[0007] Further, a water replenishment hole is provided on the side of the purification box.

[0008] Further, a controller is fixedly installed on the side of the purification box.

[0009] Further, an intermediate partition pipe is fixedly installed in the middle of the inner side of the purification box, and the top port of the intermediate partition pipe is located below the water level of the inner cavity in the middle of the purification box; a water replenishment cylinder communicated with the intermediate partition pipe is fixedly installed at the bottom of the outer side of the purification box, and an alarm pipe is fixed to the outer side of the water replenishment cylinder.

[0010] Further, a water replenishment piston pushed by a spring is movably installed inside the water replenishment cylinder, and a water supply pipe communicated with a water tank is fixedly installed at the end of the water replenishment cylinder; check valves for restricting the one-way flow of the water medium are fixedly installed at the ends of the water supply pipe and the bottom of the alarm pipe respectively, and a water replenishment pipe communicating with the inner cavity of the filter cartridge is threadedly connected to the top of the alarm pipe; an electromagnetic support frame coaxial with the filter cartridge is fixed to the top of the particle filtration component, an anti-flush piston is movably sleeved inside the electromagnetic support frame, and a positioning telescopic rod and a tension spring are connected between the anti-flush piston and the electromagnetic support frame; a permanent magnet is fixedly installed on the inner top of the anti-flush piston, and an electromagnet magnetically repulsive to the permanent magnet is fixedly installed on the inner top of the electromagnetic support frame.

[0011] Further, the outer diameter value of the anti-flush piston is equal to the inner diameter value of the filter cartridge.

[0012] Further, a start switch on the side away from the intermediate partition pipe and a stop switch on the side close to the intermediate partition pipe are fixedly installed on the side of the water replenishment cylinder. When the water replenishment piston touches the start switch, the electromagnet will only stop working when the stop switch is turned on.

[0013] Further, a middle connecting rod passing through the center of the filter cartridge is fixedly installed in the middle of the bottom end of the anti-flush piston, and a middle partition piston is fixedly installed at the bottom of the outer side of the middle connecting rod and below the filter cartridge. The outer diameter value of the middle partition piston is equal to the inner diameter value of the inner side of the intermediate partition pipe; a sewage pipe is threadedly connected to the bottom of the intermediate partition pipe, and a sewage valve core pushed upward by a spring is provided at the bottom of the intermediate partition pipe.

[0014] Further, the shape of the sewage discharge valve core is frustum-shaped.

[0015] A purification method for an air discharge purification device used in a down production workshop includes the following steps:

[0016] S1. Start the controller to control the fan pump assembly to start working, generate a suction force through the intake pipe, and suck in down debris and dust in the down production workshop.

[0017] S2. The airflow containing impurities is blown through the exhaust pipe into the inside of the buffer seat.

[0018] S3. Inside the buffer seat, the airflow diverges outward when passing through the dispersing hemisphere, and through the guiding action of the grading groove, the airflow is blown towards the water medium surface in the middle of the purification box, and the water medium is used to perform pre-adhesion filtration on the airflow to capture down debris and dust in the airflow.

[0019] S4. The airflow after pre-filtration continues to flow and is further purified by passing through the filter cartridge and the activated carbon filter assembly in sequence.

[0020] S5. The airflow after double purification is discharged outward from the silencer pipe or returned to the down production workshop.

[0021] The present invention has the following beneficial effects:

[0022] An air discharge purification device and its purification method for a down production workshop provided by the present invention are provided with a combined structure of a dispersing ball and a grading groove in the purification box, and an appropriate amount of water medium is injected at the same time. When the fan pump assembly is started and continuously conveys the airflow containing impurities to the buffer seat, the airflow will first encounter the dispersing balls. These dispersing balls can cause the airflow to quickly disperse in all directions when blowing through, thereby increasing the contact area between the airflow and the water medium.

[0023] The grading groove plays a role in guiding the airflow. It guides the dispersed airflow to blow orderly towards the water medium surface in the purification box. During this process, impurities such as dust and down debris in the air will no longer fly due to the adhesion of water once they come into contact with the water medium. In this way, these impurities will no longer follow the airflow to move towards the subsequent filter cartridge, effectively reducing the accumulation of impurities on the filter cartridge. This design cleverly realizes the pre-water filtration of air, greatly reducing the filtration pressure of the subsequent filter cartridge. It not only improves the purification efficiency but also extends the service life of the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings forming a part of the specification depict the embodiments disclosed by the present invention and, together with the specification, are used to explain the principles disclosed by the present invention.

[0025] The present invention can be more clearly understood from the following detailed description with reference to the accompanying drawings, wherein:

[0026] Figure 1 It is a schematic external three-dimensional structure diagram of the whole of the present invention;

[0027] Figure 2 It is a schematic internal three-dimensional structure diagram of the whole of the present invention;

[0028] Figure 3 It is a schematic front part plane sectional structure diagram of the present invention;

[0029] Figure 4 It is a schematic enlarged structure diagram at E of the present invention;

[0030] Figure 5 It is a schematic diagram of the positions and three-dimensional structures of the components in the buffer seat of the present invention;

[0031] Figure 6 It is a schematic diagram of the positions and three-dimensional structures of the pipe fittings on the water replenishing cylinder of the present invention;

[0032] Figure 7 It is a schematic diagram of the installation position of the electromagnetic support frame and the three-dimensional structures of the internal components of the present invention;

[0033] Figure 8 It is a schematic diagram of the air flow and water medium distribution states under normal operation of the present invention;

[0034] Figure 9 It is a schematic diagram of the air flow and water medium distribution states when the filter cartridge is blocked in the present invention;

[0035] Figure 10 It is a schematic diagram of the air flow and water medium distribution states during the filter cartridge clogging cleaning process in the present invention;

[0036] Figure 11 It is a schematic diagram of the process of the water replenishing piston resetting after the filter cartridge clogging cleaning in the present invention.

[0037] In the figure: 1, purification box; 1001, water replenishing hole; 2, controller; 3, silencer pipe; 4, activated carbon filter assembly; 5, particle filter assembly; 6, fan pump assembly; 600, intake pipe; 601, exhaust pipe; 7, buffer seat; 700, dispersion hemisphere; 701, grading tank; 8, water replenishing cylinder; 801, water supply pipe; 9, alarm pipe; 10, water replenishing pipe; 11, start switch; 110, stop switch; 12, sewage pipe; 13, intermediate partition pipe; 14, water replenishing piston; 15, sewage valve core; 16, filter cartridge; 17, electromagnetic support frame; 18, intermediate partition piston; 19, intermediate connecting rod; 20, electromagnet; 21, permanent magnet; 22, backflush piston; 23, positioning telescopic rod. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Example 1. Please refer to Figure 1 It can be seen that the purification box 1 is arranged vertically as a whole, and the entire mechanism can be stably supported by the support legs at the four corners of the bottom. Combining Figure 2 It can be seen that there is a fan pump assembly 6 fixedly installed on the inner bottom of the purification box 1 by using a motor support. The fan pump assembly 6 is mainly composed of a centrifugal fan and its accessory components. The specific model and power used can be purchased and applied according to the usage requirements. An air inlet pipe 600 extending from the side of the purification box 1 is fixedly installed at the input end of the fan pump assembly 6. The air inlet pipe 600 is generally connected to the air collecting hood in the down jacket production workshop by using a flange, so as to ensure that when the fan pump assembly 6 works, the floating down debris and dust in the room can be sucked out. Immediately afterwards, the sucked down debris and dust will be vertically conveyed upwards from the exhaust pipe 601 fixed at the output end of the fan pump assembly 6 to the middle inner cavity of the purification box 1.

[0040] Refer to Figure 2 、 Figure 3 and Figure 5 It can be seen that a buffer seat 7 with a through interior is fixedly installed in the middle of the inner side of the purification box 1. The inner cavity of the buffer seat 7 provides an output space for the exhaust pipe 601. A dispersion hemisphere 700 opposite to its inner cavity is fixedly installed on the top of the buffer seat 7, and the bottom of the dispersion hemisphere 700 is an arc surface. When the impurity-containing air flow in the exhaust pipe 601 is vertically conveyed upwards inside the buffer seat 7, the air flow will diverge in an umbrella shape in all directions after passing through the dispersion hemisphere 700, thereby increasing the flow area of the air flow. When the air flow is dispersed from the dispersion hemisphere 700, it will pass through the grading grooves 701 opened around the top of the buffer seat 7, and the grading grooves 701 can guide the air flow obliquely downwards. On this basis, a water replenishing hole 1001 for injecting a water medium into the middle inner cavity thereof is opened on the side of the purification box 1. When the air flow is guided by the grading grooves 701 and flows obliquely downwards, it will directly contact the water surface. During this process, the down debris and dust carried in the air flow are adhered by the water and cannot fly. Finally, the pre-filtration of the air can be realized by using water, thereby reducing the pressure of subsequent fine filtration. It should be noted that during the application process, in order to prevent the air flow from escaping from the water replenishing hole 1001, after the initial water injection is completed, the water replenishing hole 1001 needs to be blocked to prevent the air flow input into the middle inner cavity of the purification box 1 from directly escaping from the water replenishing hole 1001.

[0041] From Figure 2 、 Figure 3and Figure 7 As can be seen, a particle filtration component 5 is fixedly installed in the middle inside the purification box 1 above the buffer seat 7. On one side of the surface of the particle filtration component 5, a filter cartridge 16 is movably installed. The filter cartridge 16 is a cylindrical tube with an upward opening in the middle. And, filter holes for filtering the air flow are provided on the outer side of the filter cartridge 16. The air flow after pre-filtration by water will be conveyed upward and further finely filtered through the filter holes on the filter cartridge 16, so as to screen out impurities such as dust existing in the air flow. It should be noted that in the middle inner cavity of the purification box 1 and in the space for storing the water medium, air flow can only be conveyed into it through the exhaust pipe 601. The air flow is conveyed upward after being filtered by the filter cartridge 16, and there are no other leakage parts in the first embodiment. After that, the air flow finely filtered by the filter cartridge 16 is conveyed upward along the inner cavity of the top of the purification box 1 and deodorized and purified by the activated carbon filtration component 4 fixedly installed on the inner top of the purification box 1. Since the duck feathers used to make down jackets will have an earthy smell, the adsorption of the activated carbon filtration component 4 can remove the odor in the air. Finally, the air flow filtered by the activated carbon filtration component 4 is conveyed upward again until the air flow is discharged from the silencer tube 3 fixedly installed on the top of the purification box 1. The silencer tube 3 can reduce the noise generated during operation. The air flow discharged from the silencer tube 3 can have two destinations. It can either be directly connected to the working workshop to achieve the balance of gas flow; or be directly discharged outdoors.

[0042] Regarding other accessories during the operation of the first embodiment, combined with Figure 1 As can be seen, a controller 2 is fixedly installed on the side of the purification box 1. Through the controller 2, the above-mentioned electrical components can be precisely controlled. And, there is a transparent viewing window hermetically and tightly connected by a flange in the middle of the purification box 1. The actual working state inside the purification box 1 can be observed through the viewing window.

[0043] When the first embodiment is actually applied, the controller 2 controls the fan pump assembly 6 to start working, and uses the suction force generated by the intake pipe 600 to suck out the down debris and dust in the down production workshop. The air flow is blown into the inside of the buffer seat 7 through the exhaust pipe 601.

[0044] When the air flow passes through the dispersion hemisphere 700, it can diverge outward, and through the guiding of the grading groove 701, the air flow containing impurities is blown towards the surface of the water medium in the middle of the purification box 1, and the water medium is used to achieve the pre-filtration of the air flow. Secondly, the filtered air flow passes through the filter cartridge 16 and the activated carbon filtration component 4 in sequence and is then discharged outward from the silencer tube 3 or into the working workshop.

[0045] Example 2 is a further improvement based on Example 1. Since there is still a risk that impurities in the air flow will clog the filter cartridge 16 during long-term filtration, the solution provided in this Example 2 can send an alarm to the outside after the filter cartridge 16 is clogged, so as to inform the operator that the filter cartridge 16 here needs to be replaced. Specifically, please refer to Figure 2 、 Figure 3 and Figure 6 It can be seen that an intermediate partition pipe 13 extending into the water medium is fixedly installed in the middle of the inner side of the purification tank 1. The intermediate partition pipe 13 is vertically placed, and the top port thereof is 5-10 cm below the water level of the inner cavity in the middle of the purification tank 1. The actual height can be adjusted as required according to the actual installation length of the intermediate partition pipe 13. Since the inside of the intermediate partition pipe 13 is hollow, normally, the water medium will be poured into the intermediate partition pipe 13 synchronously. A water replenishing cylinder 8 that is vertical to and communicates with the intermediate partition pipe 13 is fixedly installed at the bottom of the outer side of the purification tank 1. From Figure 2 It can be seen that the right end of the water replenishing cylinder 8 communicates with the intermediate partition pipe 13, and the left end extends out from the side of the purification tank 1 and is fixedly connected with an alarm pipe 9 on the outside of this end. The alarm pipe 9 is also arranged vertically upward, but the top height of the alarm pipe 9 is higher than the water level of the inner cavity in the middle of the purification tank 1.

[0046] Normally, according to the principle of communicating vessels, the liquid level height of the water medium inside the alarm pipe 9 is the same as the water liquid level height of the inner cavity in the middle of the purification tank 1. As mentioned in Example 1, when the air flow in the exhaust pipe 601 is delivered to the buffer seat 7, the air flow will be filtered by the filter cartridge 16 and deodorized by the activated carbon filtering component 4, and then discharged from the silencer pipe 3.

[0047] As the filter cartridge 16 conducts refined filtration work for a long time, the filter holes on the side of the filter cartridge 16 will be clogged, which results in poor air outlet of the filter cartridge 16. However, the inner cavity in the middle of the purification tank 1 is provided with continuous air flow by the pumping of the fan pump assembly 6. When the air flow cannot be discharged normally, it will cause the air pressure in the inner cavity in the middle of the purification tank 1 to increase. Since the air flow in the middle chamber of the purification tank 1 cannot be relieved from other places, only the water liquid level in this chamber can be lowered, and the water medium is delivered to the water replenishing cylinder 8 and the alarm pipe 9 until it sprays out from the top of the alarm pipe 9. When external personnel know that the alarm pipe 9 sprays water, it means that the filter cartridge 16 has been clogged, so replacement work needs to be carried out.

[0048] Example 3 is a further improvement based on Example 2. The difference from Example 2 is that this Example 3 aims to solve the problem of clogging of the filter cartridge 16, so as to ensure that when the down workshop is in production operation, the clogged filter cartridge 16 can be self-cleaned without stopping the operation. Please refer to Figure 2 、 Figure 3 and Figure 6It can be seen that a water replenishing piston 14 capable of horizontally reciprocating along the central axis of the water replenishing cylinder 8 is movably installed inside the water replenishing cylinder 8. Under normal conditions, a spring is connected between the left end of the water replenishing piston 14 and the inner side of the water replenishing cylinder 8. Under the push of the spring, the water replenishing piston 14 is relatively close to the middle partition pipe 13. On this basis, a water supply pipe 801 communicating with the inner cavity of the water replenishing cylinder 8 is fixedly installed at the end of the water replenishing cylinder 8. The water supply pipe 801 is generally communicated with an external water tank. The water medium in the water tank is generally pure water. From Figure 2 and Figure 6 It can be clearly known that check valves for restricting the one-way flow of the water medium are fixedly installed at the end of the water supply pipe 801 and the bottom of the alarm pipe 9. Among them, the check valve at the bottom of the alarm pipe 9 restricts the one-way flow of the water medium in the inner cavity of the water replenishing cylinder 8 into the alarm pipe 9; the check valve at the end of the water supply pipe 801 restricts the one-way flow of the water medium in the water tank into the inner cavity of the water replenishing cylinder 8. It can be seen from this that when the water replenishing piston 14 is pushed by the spring and moves to the right, the pressure in the inner cavity of the water replenishing cylinder 8 decreases. Through suction by the water supply pipe 801, pure water in the water tank can be temporarily stored in the water replenishing cylinder 8; when the water replenishing piston 14 moves to the left and compresses the spring, the medium in the inner cavity of the water replenishing cylinder 8 can be conveyed into the alarm pipe 9, and through the water replenishing pipe 10 threadedly connected to the top of the alarm pipe 9, pure water can be conveyed above the particle filter assembly 5. Finally, the pure water can flow into the inner cavity of the filter cylinder 16, which is also the necessary water medium for clearing the blockage of the filter cylinder 16.

[0049] Correspondingly, combined with Figure 3 、 Figure 4 and Figure 7 It can be seen that an electromagnetic support frame 17 is fixedly installed on the top of the particle filter assembly 5 by using a bracket, and the electromagnetic support frame 17 is coaxially arranged with the filter cylinder 16. A backflush piston 22 is movably sleeved inside the electromagnetic support frame 17, and the backflush piston 22 and the electromagnetic support frame 17 are connected by three positioning telescopic rods 23. The positioning telescopic rods 23 not only ensure that there is no relative rotation between the backflush piston 22 and the electromagnetic support frame 17, but also limit the backflush piston 22 to only reciprocate up and down along the central axis of the electromagnetic support frame 17 through the positioning telescopic rods 23. The outer diameter of the backflush piston 22 is the same as the inner diameter of the filter cylinder 16. When the backflush piston 22 enters the inner side of the filter cylinder 16, by squeezing the pure water in the inner side of the filter cylinder 16, water medium backflush and blockage clearing are realized in the filter cylinder 16. Regarding the timing and power supply for clearing the blockage of the backflush piston 22, from Figure 3 、 Figure 4 and Figure 7It can be seen that a permanent magnet 21 is fixedly installed on the inner side of the top of the recoil piston 22. Correspondingly, an electromagnet 20, which is magnetically repulsive to the permanent magnet 21, is fixedly installed on the inner top of the electromagnetic support frame 17. When the electromagnet 20 is not energized, since a tension spring is connected between the recoil piston 22 and the electromagnetic support frame 17 at the outer part of the positioning telescopic rod 23, the recoil piston 22 is pulled upward to the limit by the tension spring. At this time, the recoil piston 22 is relatively separated from the filter cartridge 16. When the electromagnet 20 is energized, the electromagnet 20 will generate a magnetic force repulsive to the permanent magnet 21, thereby pushing the recoil piston 22 downward and squeezing the purified water in the inner cavity of the filter cartridge 16. The purified water is ejected in the direction of the filter holes of the filter cartridge 16, so as to clear the blockage of the filter holes in the filter cartridge 16. Regarding the downward timing of the recoil piston 22, from Figure 3 It can be seen that a start switch 11 far from the middle partition pipe 13 and a stop switch 110 close to the middle partition pipe 13 are fixedly installed on the side of the water replenishing cylinder 8. When the water replenishing piston 14 touches the stop switch 110, the stop switch 110 sends an electrical signal to the controller 2 through an electric wire, and the electromagnet 20 will not be energized under the control of the controller 2. Similarly, when the water replenishing piston 14 touches the start switch 11, the start switch 11 sends an electrical signal to the controller 2 through an electric wire, and the electromagnet 20 will only stop working when the stop switch 110 is energized under the control of the controller 2. As described in the second embodiment, when the filter cartridge 16 is blocked, the pressure in the middle inner cavity of the purification tank 1 increases, which will push the water replenishing piston 14 to move towards the start switch 11 until the start switch 11 is energized, and the electromagnet 20 will also start to work. Finally, the recoil piston 22 moves downward to squeeze the purified water in the inner cavity of the filter cartridge 16, so that the purified water rushes out from the filter holes of the filter cartridge 16 to clear the blockage.

[0050] Moreover, since the middle partition pipe 13 is located below the liquid level, from Figure 3 、 Figure 6 and Figure 7 it can be seen that a middle connecting rod 19 passing through the center of the filter cartridge 16 is fixedly installed in the middle of the bottom end of the recoil piston 22, and a middle partition piston 18 is fixedly installed at the bottom of the outer side of the middle connecting rod 19 and below the filter cartridge 16. The outer diameter of the middle partition piston 18 is the same as the inner diameter of the middle partition pipe 13, so that the middle partition pipe 13 can be blocked when the middle partition piston 18 moves downward. From Figure 3 and Figure 7It can be seen that the bottom of the middle partition pipe 13 is threadedly connected to the sewage discharge pipe 12 extending from the side of the purification tank 1, and there is a sewage discharge valve core 15 at the bottom of the middle partition pipe 13 that is pushed upward by a spring. The shape of the sewage discharge valve core 15 is frustum-shaped. Under normal conditions, the sewage discharge valve core 15 is pushed upward by the spring force and blocks the bottom of the middle partition pipe 13. Only when the backflush piston 22 drives the middle connecting rod 19 to move downward to the limit, the bottom of the middle connecting rod 19 will abut against the sewage discharge valve core 15 and overcome the spring force at its bottom, causing the medium in the middle partition pipe 13 and the water replenishing cylinder 8 and in the right chamber of the water replenishing piston 14 to be discharged outward through the sewage discharge pipe 12. In practical applications, the sewage discharge pipe 12 can be directly connected to the sewage pipe.

[0051] In the actual application of the third embodiment, under normal conditions, referring to Figure 3 the serial numbers marked and Figure 8 the schematic diagram of the medium / water flow, it can be seen that the water replenishing piston 14 is pushed by the spring force towards the middle partition pipe 13 until the water replenishing piston 14 touches the stop switch 110. During this process, the right-moving water replenishing piston 14 reduces the pressure in the left inner cavity of the water replenishing cylinder 8, and uses the water supply pipe 801 to suck the pure water in the water tank into the inner cavity of the water replenishing cylinder 8; after the stop switch 110 is touched by the water replenishing piston 14, it will send an electrical signal to the controller 2, and the controller 2 de-energizes the electromagnet 20. At this time, the backflush piston 22 is pulled by the tension spring on the outer side of the positioning telescopic rod 23 to drive the middle connecting rod 19 to move upward synchronously until the backflush piston 22 moves upward to the limit, and the middle partition piston 18 moves away from the middle partition pipe 13 and adheres to the lower part of the filter cartridge 16. The air flow in the down jacket production workshop is sucked through the air inlet pipe 600 and discharged from the exhaust pipe 601 into the buffer seat 7. After that, the air flow is dispersed and guided through the dispersion hemisphere 700 and the grading groove 701, and then the air flow blows towards the water medium in the inner cavity of the purification tank 1 for primary water adhesion filtration. The filtered air flow is finely filtered through the filter cartridge 16. After the air flow is deodorized by the activated carbon filter assembly 4, it returns to the production workshop through the silencer pipe 3. This working state is shown in Figure 8 the figure.

[0052] As the filter cartridge 16 performs fine filtration work for a long time, the filter holes on the filter cartridge 16 will become blocked, which causes the filter cartridge 16 to be unable to normally transport the air flow in the middle inner cavity of the purification tank 1 upward. Combining Figure 3 and Figure 9It can be seen that the water medium in the middle inner cavity of the purification tank 1 will be pressed into the middle partition pipe 13. During this process, all the water medium on the surface layer in the inner cavity of the purification tank 1 flows into the middle partition pipe 13. In practical applications, it can be found that when the surface of the water medium adheres to the fine down, the lighter down will gradually accumulate on the surface layer of the water medium, which also affects the adhesion filtration of the subsequent air flow. At this time, the middle partition pipe 13 can be used to extract the water medium on the surface layer in the inner cavity of the purification tank 1, thereby increasing the cleanliness of the water medium on the surface of the inner cavity of the purification tank 1, so as to better perform adhesion filtration on the air flow subsequently. As the pressure in the inner cavity of the purification tank 1 increases, the water replenishing piston 14 will compress the spring to the left. During this process, the water replenishing piston 14 will squeeze the purified water in the left chamber into the alarm pipe 9 and flow the purified water into the filter cartridge 16 through the water replenishing pipe 10. At this time, the pressure on the outer side of the filter cartridge 16 is relatively greater than that on the inner side. Therefore, the water medium flowing into the inner cavity of the filter cartridge 16 will not flow into the middle chamber of the purification tank 1 temporarily.

[0053] After that, as the water replenishing piston 14 moves to the left and contacts the start switch 11, the start switch 11 will send an electrical signal to the controller 2, and the controller 2 controls the electromagnet 20 to start working and generate a magnetic force that repels the permanent magnet 21. Refer to Figure 3 and Figure 10 It can be seen that when the left start switch 11 is pressed, the backflush piston 22 is pushed by the magnetic force to pull the positioning telescopic rod 23 and the tension spring downward. As the backflush piston 22 moves downward, it will drive the middle partition piston 18 to move downward synchronously. The backflush piston 22 enters the filter cartridge 16 and squeezes the purified water in the inner cavity of the filter cartridge 16. At this time, the sewage generated after blockage removal flows into the middle partition pipe 13. Along with the continuous downward movement of the backflush piston 22, the middle partition piston 18 will block the middle partition pipe 13. After that, the water medium after backflushing inside the filter cartridge 16 will be retained in the middle inner cavity of the purification tank 1, and this water medium will again serve as the surface layer in the middle of the inner cavity of the purification tank 1 for adhesion filtration of the air flow blown from the grading tank 701. During the continuous downward movement of the backflush piston 22, the filter holes passed by the backflush piston 22 can already filter the air flow in the inner cavity of the purification tank 1. Combined with the blockage of the middle partition pipe 13, therefore, the air flow in the inner cavity of the purification tank 1 is filtered again through the filter cartridge 16 and then discharged into the down production workshop through the silencer pipe 3 after passing through the activated carbon filter assembly 4.

[0054] Finally, as Figure 3 and Figure 11As shown, after the recoil piston 22 moves downward to the bottom, the recoil piston 22 will also adhere to the inner bottom of the filter cartridge 16, and the intermediate connecting rod 19 will also abut against the sewage discharge valve core 15 and move downward to compress the spring below it, which causes the intermediate partition pipe 13 and the sewage discharge pipe 12 to communicate. Pushed by the elastic force of the spring on the left side of the water replenishing piston 14, the water replenishing piston 14 moves to the right, and then the sewage temporarily stored on the right side of the water replenishing piston 14 is pushed back into the intermediate partition pipe 13 and discharged to the outside through the sewage discharge pipe 12 until the water replenishing piston 14 contacts the stop switch 110 again. The stop switch 110 sends an electrical signal to the controller 2 to stop the electromagnet 20 from working. After that, the recoil piston 22 is pulled upward by the tension spring until it returns to the normal position mentioned above.

[0055] From the above, it can be seen that in the third embodiment, after the filter cartridge 16 is blocked, the function of self-recoil and blockage cleaning can be realized independently. Moreover, during the blockage cleaning process, the method provided in the third embodiment can accurately pump out the sewage on the surface layer of the inner cavity of the purification tank 1 and temporarily store it in the inner cavity of the water replenishing cylinder 8. After the intermediate partition piston 18 closes the intermediate partition pipe 13 and the sewage discharge valve core 15 is opened, the sewage temporarily stored in the inner cavity of the water replenishing cylinder 8 will be discharged to the outside. During the discharge of the sewage on the surface layer of the water medium in the purification tank 1, the outside and the inner cavity of the purification tank 1 always maintain relative sealing to prevent the air that has not been purified by the activated carbon filter assembly 4 from being directly discharged.

Claims

1. An air emission purification device for a down production workshop, characterized in that, Including: A purification box (1) with a water medium injected into the inner cavity in the middle. A fan pump assembly (6) is installed at the inner bottom. The fan pump assembly (6) sucks air in the workshop through an intake pipe (600) and outputs it to a buffer seat (7) through an exhaust pipe (601). An activated carbon filter assembly (4) is fixed to the inner top of the purification box (1), and a silencer pipe (3) is located above the activated carbon filter assembly (4). The buffer seat (7) is fixed in the middle of the inner side of the purification box (1). A dispersion hemisphere (700) that diverges the airflow in all directions is fixedly installed on the top of the buffer seat (7), and a grading groove (701) that guides the airflow towards the water medium is provided around the top. A particle filter assembly (5) is fixedly installed in the middle of the inner side of the purification box (1) between the buffer seat (7) and the activated carbon filter assembly (4). A filter cartridge (16) is movably installed on one side of the surface of the particle filter assembly (5), and filter holes are provided on the outer side of the filter cartridge (16).

2. The air emission purification device for a down production workshop according to claim 1, characterized in that, A water replenishing hole (1001) is provided on the side of the purification box (1).

3. The air emission purification device for a down production workshop according to claim 1, characterized in that A controller (2) is fixedly installed on the side of the purification box (1).

4. The air emission purification device for a down production workshop according to claim 1, wherein, An intermediate partition pipe (13) is fixedly installed in the middle of the inner side of the purification box (1), and the top port of the intermediate partition pipe (13) is below the water level in the middle inner cavity of the purification box (1). A water replenishing cylinder (8) communicated with the intermediate partition pipe (13) is fixedly installed at the outer bottom of the purification box (1), and an alarm pipe (9) is fixed to the outer side of the water replenishing cylinder (8).

5. The air emission purification device for a down production workshop according to claim 4, characterized in that, A water replenishing piston (14) pushed by a spring is movably installed inside the water replenishing cylinder (8). A water supply pipe (801) communicated with a water tank is fixedly installed at the end of the water replenishing cylinder (8). One-way valves for restricting the one-way flow of the water medium are fixedly installed at the end of the water supply pipe (801) and the bottom of the alarm pipe (9). A water replenishing pipe (10) connected to the inner cavity of the filter cartridge (16) is threadedly connected to the top of the alarm pipe (9). An electromagnetic support frame (17) coaxial with the filter cartridge (16) is fixed to the top of the particle filter assembly (5). A backflush piston (22) is movably sleeved inside the electromagnetic support frame (17), and a positioning telescopic rod (23) and a tension spring are connected between the backflush piston (22) and the electromagnetic support frame (17). A permanent magnet (21) is fixedly installed inside the top of the backflush piston (22), and an electromagnet (20) magnetically repulsive to the permanent magnet (21) is fixedly installed at the inner top of the electromagnetic support frame (17).

6. The air emission purification device for a down production workshop according to claim 5, wherein The outer diameter value of the backflush piston (22) is equal to the inner diameter value of the filter cartridge (16).

7. The air emission purification device for a down production workshop according to claim 5, characterized in that, A start switch (11) on the side away from the intermediate partition pipe (13) and a stop switch (110) on the side close to the intermediate partition pipe (13) are fixedly installed on the side of the water replenishing cylinder (8). After the water replenishing piston (14) touches the start switch (11), the electromagnet (20) will only stop working when the stop switch (110) is turned on.

8. The air emission purification device for a down production workshop according to claim 5, characterized in that, An intermediate connecting rod (19) passing through the center of the filter cartridge (16) is fixedly installed at the middle of the bottom end of the recoil piston (22), and an intermediate separating piston (18) is fixedly installed at the bottom of the outer side of the intermediate connecting rod (19) and below the filter cartridge (16). The outer diameter of the intermediate separating piston (18) is equal to the inner diameter of the intermediate separating pipe (13); a sewage pipe (12) is threadedly connected to the bottom of the intermediate separating pipe (13), and a sewage valve core (15) is provided at the bottom of the intermediate separating pipe (13) to be pushed upward by a spring.

9. The air emission purification device for a down production workshop according to claim 8, wherein The shape of the sewage discharge valve core (15) is a truncated cone.

10. A purification method for the air emission purification device used in a down production workshop as described in claim 3, characterized in that, The following steps are involved: S1, starting the controller (2) to control the fan pump assembly (6) to start working, generating a suction force through the air intake pipe (600) to suck in down debris and dust in the down production workshop; S2, the air flow containing impurities is blown into the buffer seat (7) through the exhaust pipe (601); S3, inside the buffer seat (7), the airflow diverges outwards when passing through the dispersion hemisphere (700), and through the guiding effect of the classification groove (701), the airflow is blown toward the surface of the water medium in the middle of the purification box (1), and the water medium is used to perform pre-adhesion filtration on the airflow to capture down debris and dust in the airflow; S4, the airflow after pre-filtration continues to flow and is further purified by passing through the filter cartridge (16) and the activated carbon filter assembly (4) in sequence; S5. The airflow that has undergone double purification is discharged from the silencer pipe (3) or returned to the down production workshop.

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