A centralized collection and purification device for domestic oil fume

Abstract

The application discloses a kind of civil oil fume centralized collection purification device, it is related to oil fume purification technical field;The problem that oil fume will be attached in public smoke channel is improved, and it brings greater labor load to cleaning personnel, and the present application includes top floor and the main smoke duct of top floor bottom, the outer surface of the main smoke duct is connected with branch smoke duct, the number of the branch smoke duct is provided with several, one end of the branch smoke duct is provided with range hood, the inner surface of the main smoke duct is slidably connected with cleaning sponge;The present application is provided by the setting of cleaning motor, and the cleaning motor is started to drive winding roller to rotate, so as to wind the winding rope on winding roller, and the winding rope is shortened to drive cleaning sponge to rise along the main smoke duct, so as to wipe and clean the oil fume liquefied and attached to the inner surface of the main smoke duct, avoid more oil stains accumulated in the main smoke duct, so as to reduce maintenance cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the oil fume purification technical field, specifically to a kind of civil oil fume centralized collection purification device. BACKGROUND

[0002] With the continuous development of society, the urbanization process is accelerating, and the land utilization rate of city is gradually increasing. The floor of residential area is getting higher and higher. In order to improve the volume rate of residence, and also to make the appearance of building more neat and beautiful, vertical public smoke flue is generally arranged in building, so that the oil fume exhaust gas discharged by oil fume extractor device, ventilation fan or other oil fume exhaust gas suction equipment of each family can enter the public smoke flue and be directly discharged into the atmosphere through the public smoke flue.

[0003] This centralized smoke exhaust mode is prone to poor smoke exhaust effect in some extreme weather conditions, and even oil fume backflow may occur. In addition, the oil fume cannot be purified in the case of large smoke exhaust amount, which will cause pollution of urban environment and affect personal health.

[0004] Furthermore, the oil fume in the public smoke flue may be liquefied. Thus, only a part of the oil fume can reach the roof and be discharged by natural ventilation, and the liquefied oil fume will adhere to the public smoke flue, even reach the bottom along the inner wall of the public smoke flue and accumulate. The oil fume adhering to the public smoke flue will reduce the inner diameter of the public smoke flue and increase the resistance of smoke exhaust, further reducing the smoke exhaust effect. The oil fume accumulated at the bottom of the public smoke flue is not conducive to centralized collection and needs to be cleaned frequently, which brings great labor load to the cleaning personnel and increases the maintenance cost.

[0005] In view of the above problems, the present application provides a civil oil fume centralized collection purification device to solve the above problems. SUMMARY

[0006] In order to solve the problem that the oil fume adheres to the public smoke flue and brings great labor load to the cleaning personnel, the present application aims to provide a civil oil fume centralized collection purification device.

[0007] To solve the above technical problems, the application adopts the following technical scheme: including a top floor and a main smoke exhaust duct arranged at the bottom of the top floor, the outer surface of the main smoke exhaust duct is communicated with branch smoke exhaust ducts, the number of the branch smoke exhaust ducts is several, one end of the branch smoke exhaust duct is provided with an extractor hood, the bottom of the top floor and the outer periphery of the main smoke exhaust duct are fixedly connected with a cleaning liquid annular tank, the cleaning liquid annular tank is used for storing cleaning liquid, the outer surface of the cleaning liquid annular tank is provided with an adding opening for regularly adding cleaning liquid, the inner surface of the main smoke exhaust duct is slidably connected with a cleaning sponge, the cleaning sponge is used for wiping the oil stains on the inner surface of the main smoke exhaust duct, the inner surface of the cleaning sponge is fixedly connected with a cleaning installation ring, the cleaning installation ring is used for installing the cleaning sponge and a first funnel, the inner surface of the cleaning installation ring is fixedly connected with the first funnel, the first funnel facilitates the falling of the sewage cleaned by the upward movement of the cleaning sponge, the bottom of the first funnel is fixedly connected with a mounting bracket, the mounting bracket is used for installing a counterweight, the bottom of the mounting bracket is fixedly connected with the counterweight, the counterweight increases the weight of the cleaning installation ring, so that the cleaning installation ring has enough gravity to descend, preventing the cleaning sponge from being blocked by the friction force of the oil stains, the top of the top floor is fixedly connected with a filter box, the filter box is used for filtering smoke, preventing impurities in the smoke from polluting the air, the inner surface of the filter box is fixedly connected with a cleaning motor, the cleaning motor provides power for the upward movement of the cleaning sponge, the inner surface of the filter box is rotatably connected with a winding roller, the winding roller is used for winding and unwinding a winding rope, one end of the output shaft of the cleaning motor is fixedly connected with the rotating shaft of the winding roller, the inner surface of the filter box is rotatably connected with a fixed pulley, the fixed pulley is used for changing the stress of the winding rope, ensuring the normal operation of the device, the outer surface of the winding roller is connected with the top of the mounting bracket through the winding rope, the outer surface of the winding rope is in close contact with the inner surface of the fixed pulley, the inner cavity of the filter box is provided with a filtering mechanism, the inner surface of the cleaning liquid annular tank is provided with an adding mechanism, through the arrangement of the cleaning motor, the winding roller is driven to rotate by starting the cleaning motor, so that the winding rope is wound on the winding roller, the winding rope is shortened to drive the cleaning sponge to move upward along the main smoke exhaust duct, so as to wipe and clean the oil fume liquefied and attached to the inner surface of the main smoke exhaust duct, avoiding the accumulation of more oil stains in the main smoke exhaust duct, thereby reducing the maintenance cost, the inner surface of the main smoke exhaust duct is fixedly connected with a second funnel, the inner surface of the main smoke exhaust duct and below the second funnel is provided with an oil stain collecting barrel, the outer surface of the main smoke exhaust duct is provided with a mounting groove matched with the oil stain collecting barrel, the second funnel enables the falling sewage and oil stains to accurately fall into the oil stain collecting barrel, the mounting groove is used for placing the oil stain collecting barrel, and the oil stain collecting barrel is used for collecting oil stains.

[0008] Preferably, the filtering mechanism comprises a primary filter screen, an outer surface of the primary filter screen is fixedly connected with an inner surface of the filtering box, the inner surface of the filtering box is fixedly connected with a secondary filter screen, the inner surface of the filtering box is fixedly connected with a filtering first partition plate, one side of the filtering first partition plate is communicated with a filtering centrifugal impeller, the primary filter screen adopts a PET bone material filter layer, the secondary filter screen adopts an activated carbon filter layer, the filtering centrifugal impeller enables the flue gas to pass through the three-stage filter screen uniformly, thereby increasing the filtering effect of the device, one side of the filtering first partition plate and located at the outer periphery of the filtering centrifugal impeller is fixedly connected with a filtering mounting partition ring, an inner surface of the filtering mounting partition ring is fixedly connected with a three-stage filter screen, one side of the filtering box is provided with a filtering gas outlet hole, one side of the filtering box is fixedly connected with a filtering elbow joint, one end of the filtering elbow joint is fixedly connected with a HEPA filter, a top end of the HEPA filter is provided with a non-blocking air cap, the filtering mounting partition ring prevents the flue gas from flowing randomly, so that the flue gas can only flow through the three-stage filter screen, at the same time, the filtering mounting partition ring is used for mounting the three-stage filter screen, the filtering gas outlet hole is used for discharging the flue gas out of the filtering box, the filtering elbow joint enables the discharged flue gas to be conveyed into the HEPA filter, thereby ensuring the normal operation of the device, the non-blocking air cap is used for rain blocking and preventing rainwater from entering, an inner surface of the filtering box is fixedly connected with a filtering second partition plate, one side of the filtering second partition plate is fixedly connected with a filtering motor, one end of a filtering motor output shaft is fixedly connected with a filtering rotating shaft, an outer surface of the filtering rotating shaft and located between the primary filter screen and the secondary filter screen is fixedly connected with a filtering first rotating blade, the filtering second partition plate prevents the oil fume from contacting the filtering motor and the cleaning motor, thereby increasing the service life of the filtering motor and the cleaning motor, the filtering motor provides power for the rotation of the filtering rotating shaft and the filtering centrifugal impeller, the filtering rotating shaft is used for mounting the filtering first rotating blade and the filtering second rotating blade, an outer surface of the filtering rotating shaft and located between the secondary filter screen and the filtering first partition plate is fixedly connected with a filtering second rotating blade, one end of the filtering rotating shaft is fixedly connected with one end of a filtering centrifugal impeller input shaft, through the arrangement of the primary filter screen, the secondary filter screen, the filtering mounting partition ring and the HEPA filter, the flue gas is filtered four times, thereby increasing the filtering effect of the device and preventing the oil fume from polluting the air, through the arrangement of the filtering motor, the filtering motor drives the filtering first rotating blade, the filtering second rotating blade and the filtering centrifugal impeller to rotate, thereby increasing the flow speed of the air, so as to increase the oil fume discharge speed and the smoothness of the smoke discharge during the peak period.

[0009] Preferably, the adding mechanism comprises adding cleaning liquid pipes, one end of the adding cleaning liquid pipes is in communication with the inner surface of the cleaning liquid annular box, the other end of the adding cleaning liquid pipes is fixedly connected with an adding abutting plate, the top of the cleaning installation ring is provided with adding grooves, the number of the adding grooves is four, the adding cleaning liquid pipes are used for conveying cleaning liquid into the cleaning sponge, the adding abutting plate is used for extruding the adding sealing plate, the adding grooves are used for the insertion of the adding cleaning liquid pipes, so as to ensure the normal operation of the device, the inner surface of the adding grooves is slidably connected with the adding sealing plate, the inner surface of the adding grooves is fixedly connected with the adding reset spring, one end of the adding reset spring is fixedly connected with the bottom of the adding sealing plate, the inner surface of the adding grooves is fixedly connected with the adding extruding spring, one end of the adding extruding spring is fixedly connected with the adding first switch, the adding sealing plate is used for plugging the adding grooves, so as to prevent oil stains from entering the adding grooves, thereby increasing the service life of the device, the adding reset spring provides power for the upward reset of the adding sealing plate, the adding extruding spring is used for installing the adding first switch, and simultaneously prevents the adding first switch from being excessively extruded, thereby increasing the service life of the adding first switch, the bottom of the adding sealing plate is fixedly connected with the adding extruding rubber rod, the outer surface of the adding cleaning liquid pipes is in communication with an adding branch pipe, the inner surface of the adding grooves is provided with an adding absorption hole matched with the adding branch pipe, the adding extruding rubber rod is used for extruding the adding first switch, the adding branch pipe is used for aligning with the adding absorption hole, so that the cleaning liquid in the cleaning liquid annular box flows into the adding absorption hole, thereby ensuring the normal operation of the device, the outer surface of the adding cleaning liquid pipes is sleeved and slidably connected with an adding floating plate, the top of the adding floating plate is fixedly connected with an adding closing extruding rod, the outer surface of the adding cleaning liquid pipes is sleeved and fixedly connected with an adding closing mounting plate, the bottom of the adding closing mounting plate is fixedly connected with an adding second switch, the outer surface of the adding cleaning liquid pipes is provided with an adding electromagnetic control valve, the adding floating plate is used for detecting whether the cleaning sponge is saturated, when saturated, the adding floating plate rises along with the liquid surface, thereby driving the adding closing extruding rod to extrude the adding second switch to make the adding electromagnetic control valve, so as to prevent the cleaning liquid in the cleaning liquid annular box from excessively flowing out, through the setting of the adding mechanism, the cleaning liquid in the cleaning liquid annular box is conveyed into the cleaning sponge through the adding cleaning liquid pipes, so as to add cleaning liquid to the cleaning sponge, thereby increasing the cleaning effect of the cleaning sponge.

[0010] Compared with the prior art, the beneficial effects of the present application are that:

[0011] 1. By the setting of the cleaning motor, the cleaning motor is started to drive the winding roller to rotate, so as to wind the winding rope onto the winding roller, the winding rope is shortened to drive the cleaning sponge to rise along the main smoke exhaust pipeline, so as to wipe and clean the oil fume liquefied and attached to the inner surface of the main smoke exhaust pipeline, thereby avoiding the accumulation of more oil stains in the main smoke exhaust pipeline, and reducing the maintenance cost.

[0012] 2. By the setting of the adding mechanism, the cleaning liquid in the annular box is transported to the cleaning sponge through the adding cleaning liquid pipe, so that the cleaning sponge is added with cleaning liquid, and the cleaning effect of the cleaning sponge is increased;

[0013] 3. By the setting of the first filter screen, the second filter screen, the filter installation separation ring and the HEPA filter, the filtering effect of the device is increased through four times of filtering, the pollution of oil fume to air is prevented, by the setting of the filter motor, the filter motor drives the filter first rotating blade, the filter second rotating blade and the filter centrifugal impeller to rotate, the flow speed of air is increased, so that the exhaust speed of oil fume is increased, and the smoothness of smoke exhaust in peak period is increased. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 It is a schematic diagram of the structure of the oil fume extractor of the present application.

[0017] Figure 3 It is a schematic diagram of the structure of the second funnel of the present application.

[0018] Figure 4 It is a schematic diagram of the structure of the cleaning liquid annular box of the present application.

[0019] Figure 5 It is a schematic diagram of the structure of the cleaning sponge of the present application.

[0020] Figure 6 It is a schematic diagram of the structure of the cleaning installation ring of the present application.

[0021] Figure 7 It is a schematic diagram of the structure of the adding absorption hole of the present application.

[0022] Figure 8 It is a schematic diagram of the structure of the adding electromagnetic control valve of the present application.

[0023] Figure 9 It is a schematic diagram of the structure of the adding reset spring of the present application.

[0024] Figure 10 It is a schematic diagram of the structure of the adding floating plate of the present application.

[0025] Figure 11The internal structure diagram of the filter box of the present application.

[0026] Figure 12 The structure diagram of the three-stage filter screen of the present application.

[0027] Figure 13 The structure diagram of the filter air outlet hole of the present application.

[0028] In the figure: 1, top floor; 2, main smoke exhaust duct; 3, branch smoke exhaust duct; 4, range hood; 5, cleaning liquid annular box; 6, cleaning sponge; 7, cleaning installation ring; 8, first funnel; 9, mounting rack; 10, counterweight; 11, filter box; 12, cleaning motor; 13, winding roller; 14, fixed pulley; 15, winding rope; 16, second funnel; 17, oil collection bucket; 18, mounting groove; 122, first-stage filter screen; 123, second-stage filter screen; 124, filter first partition plate; 125, filter centrifugal impeller; 126, filter installation partition ring; 127, three-stage filter screen; 128, filter air outlet hole; 129, filter elbow joint; 1210, HEPA filter; 1211, non-resistance air cap; 1212, filter second partition plate; 1213, filter motor; 1214, filter rotating shaft; 1215, filter first rotating blade; 1216, filter second rotating blade; 131, adding cleaning liquid pipe; 132, adding resistance plate; 133, adding groove; 134, adding sealing plate; 135, adding return spring; 136, adding extrusion spring; 137, adding first switch; 138, adding extrusion rubber rod; 139, adding branch pipe; 1310, adding absorption hole; 1311, adding floating plate; 1312, adding closing extrusion rod; 1313, adding closing installation plate; 1314, adding second switch; 1315, adding electromagnetic control valve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] As Figures 1-13As shown, the present application provides a kind of civil oil smoke centralized collection purification device, including top floor 1 and the main smoke exhaust duct 2 of top floor 1 bottom, the outer surface of main smoke exhaust duct 2 is communicated with branch smoke exhaust duct 3, the number of branch smoke exhaust duct 3 is set to several, one end of branch smoke exhaust duct 3 is provided with range hood 4, the bottom of top floor 1 and located the outer periphery of main smoke exhaust duct 2 is fixedly connected with cleaning liquid annular tank 5, cleaning liquid annular tank 5 is used to store cleaning liquid, the outer surface of cleaning liquid annular tank 5 is provided with adding mouth, for regularly adding cleaning liquid, the inner surface of main smoke exhaust duct 2 is slidably connected with cleaning sponge 6, cleaning sponge 6 is used to wipe the oil dirt of main smoke exhaust duct 2 inner surface, the inner surface of cleaning sponge 6 is fixedly connected with cleaning installation ring 7, cleaning installation ring 7 is used to install cleaning sponge 6 and first funnel 8, the inner surface of cleaning installation ring 7 is fixedly connected with first funnel 8, first funnel 8 facilitates the sewage of cleaning sponge 6 to move up and clean and falls, the bottom of first funnel 8 is fixedly connected with mounting bracket 9, mounting bracket 9 is used to install counterweight 10, the bottom of mounting bracket 9 is fixedly connected with counterweight 10, counterweight 10 increases the weight of cleaning installation ring 7, so that cleaning installation ring 7 has enough gravity to descend, prevent cleaning sponge 6 from being blocked by the friction force of oil dirt, the top of top floor 1 is fixedly connected with filter box 11, filter box 11 is used to filter flue gas, prevent the impurities in flue gas from polluting air, the inner surface of filter box 11 is fixedly connected with cleaning motor 12, cleaning motor 12 provides power for the rising of cleaning sponge 6, the inner surface of filter box 11 is rotatably connected with winding roller 13, winding roller 13 is used to retract and release winding rope 15, one end of cleaning motor 12 output shaft is fixedly connected with the rotating shaft of winding roller 13, the inner surface of filter box 11 is rotatably connected with fixed pulley 14, fixed pulley 14 is used to change the stress of winding rope 15, ensure the normal operation of device, the outer surface of winding roller 13 is connected with the top of mounting bracket 9 by winding rope 15, the outer surface of winding rope 15 is in close contact with the inner surface of fixed pulley 14, the inner cavity of filter box 11 is provided with filter mechanism, the inner surface of cleaning liquid annular tank 5 is provided with adding mechanism, by the setting of cleaning motor 12, start cleaning motor 12 drives winding roller 13 to rotate, so that winding rope 15 is wound on winding roller 13, winding rope 15 shortens and drives cleaning sponge 6 to rise along main smoke exhaust duct 2, so that the oil smoke liquefied and attached to the inner surface of main smoke exhaust duct 2 is wiped and cleaned, avoid more oil stains to accumulate in main smoke exhaust duct 2, thereby reduce maintenance cost.

[0031] The inner surface of main smoke exhaust duct 2 is fixedly connected with second funnel 16, the inner surface of main smoke exhaust duct 2 and located below second funnel 16 is provided with oil dirt collecting barrel 17, the outer surface of main smoke exhaust duct 2 is provided with installation groove 18 matched with oil dirt collecting barrel 17.

[0032] By adopting the above technical scheme, the second funnel 16 can accurately drop the sewage and oil stains into the oil collection barrel 17, the installation groove 18 is used for placing the oil collection barrel 17, and the oil collection barrel 17 is used for collecting oil stains.

[0033] The filtering mechanism comprises a first filter screen 122, an outer surface of the first filter screen 122 being fixedly connected with an inner surface of the filtering box 11, the inner surface of the filtering box 11 being fixedly connected with a second filter screen 123, the inner surface of the filtering box 11 being fixedly connected with a filtering first partition plate 124, and the filtering first partition plate 124 being communicated with a filtering centrifugal impeller 125 on one side.

[0034] By adopting the above technical scheme, the first filter screen 122 adopts a PET material filter layer, the second filter screen 123 adopts an activated carbon filter layer, and the filtering centrifugal impeller 125 can make the flue gas uniformly pass through the third filter screen 127, thereby increasing the filtering effect of the device.

[0035] The filtering first partition plate 124 is fixedly connected with a filtering installation partition ring 126 on one side and at an outer periphery of the filtering centrifugal impeller 125, an inner surface of the filtering installation partition ring 126 is fixedly connected with a third filter screen 127, one side of the filtering box 11 is provided with a filtering gas outlet hole 128, one side of the filtering box 11 is fixedly connected with a filtering elbow joint 129, one end of the filtering elbow joint 129 is fixedly connected with a HEPA filter 1210, and a top end of the HEPA filter 1210 is provided with a non-blocking air cap 1211.

[0036] By adopting the above technical scheme, the filtering installation partition ring 126 prevents the flue gas from flowing randomly, so that the flue gas can only flow through the third filter screen 127, the filtering installation partition ring 126 is used for installing the third filter screen 127, the filtering gas outlet hole 128 is used for discharging the flue gas out of the filtering box 11, the filtering elbow joint 129 can make the discharged flue gas be conveyed into the HEPA filter 1210, thereby ensuring normal operation of the device, and the non-blocking air cap 1211 is used for rain blocking and preventing rainwater from entering.

[0037] An inner surface of the filtering box 11 is fixedly connected with a filtering second partition plate 1212, one side of the filtering second partition plate 1212 is fixedly connected with a filtering motor 1213, one end of an output shaft of the filtering motor 1213 is fixedly connected with a filtering rotating shaft 1214, and an outer surface of the filtering rotating shaft 1214 and between the first filter screen 122 and the second filter screen 123 is fixedly connected with a filtering first rotating blade 1215.

[0038] By adopting the above technical scheme, the second filter plate 1212 prevents oil fume from contacting the filter motor 1213 and the cleaning motor 12, thereby increasing the service life of the filter motor 1213 and the cleaning motor 12. The filter motor 1213 provides power for rotation of the filter rotating shaft 1214 and the filter centrifugal impeller 125. The filter rotating shaft 1214 is used for mounting the filter first rotating blade 1215 and the filter second rotating blade 1216.

[0039] The outer surface of the filter rotating shaft 1214 is fixedly connected with the filter second rotating blade 1216 between the second filter screen 123 and the filter first partition plate 124. One end of the filter rotating shaft 1214 is fixedly connected with one end of an input shaft of the filter centrifugal impeller 125.

[0040] By adopting the above technical scheme, through the settings of the first filter screen 122, the second filter screen 123, the filter mounting ring 126 and the HEPA filter 1210, the air is filtered four times, thereby increasing the filtering effect of the device and preventing oil fume from polluting the air. Through the setting of the filter motor 1213, the filter motor 1213 drives the filter first rotating blade 1215, the filter second rotating blade 1216 and the filter centrifugal impeller 125 to rotate, thereby increasing the flow speed of the air and the exhaust speed of the oil fume, and increasing the smoothness of the smoke exhaust during the peak period.

[0041] The adding mechanism comprises adding cleaning liquid pipes 131. The number of the adding cleaning liquid pipes 131 is four. One end of the adding cleaning liquid pipe 131 is in communication with the inner surface of the cleaning liquid ring box 5. The other end of the adding cleaning liquid pipe 131 is fixedly connected with an adding abutting plate 132. The top of the cleaning mounting ring 7 is provided with adding grooves 133. The number of the adding grooves 133 is four.

[0042] By adopting the above technical scheme, the adding cleaning liquid pipe 131 is used for conveying cleaning liquid into the cleaning sponge 6. The adding abutting plate 132 is used for extruding the adding sealing plate 134. The adding groove 133 is used for inserting the adding cleaning liquid pipe 131, thereby ensuring normal operation of the device.

[0043] The inner surface of the adding groove 133 is slidably connected with the adding sealing plate 134. The inner surface of the adding groove 133 is fixedly connected with an adding return spring 135. One end of the adding return spring 135 is fixedly connected with the bottom of the adding sealing plate 134. The inner surface of the adding groove 133 is fixedly connected with an adding extruding spring 136. One end of the adding extruding spring 136 is fixedly connected with an adding first switch 137.

[0044] By adopting the above technical scheme, the adding sealing plate 134 is used for plugging the adding groove 133 to prevent oil stains from entering the adding groove 133, thereby increasing the service life of the device, the adding return spring 135 provides power for the adding sealing plate 134 to rise and reset, the adding extrusion spring 136 is used for installing the adding first switch 137 and simultaneously preventing the adding first switch 137 from being excessively extruded, thereby increasing the service life of the adding first switch 137.

[0045] The bottom of the adding sealing plate 134 is fixedly connected with the adding extrusion rubber rod 138, the outer surface of the adding cleaning liquid pipe 131 is communicated with the adding branch pipe 139, and the inner surface of the adding groove 133 is provided with the adding absorption hole 1310 matched with the adding branch pipe 139.

[0046] By adopting the above technical scheme, the adding extrusion rubber rod 138 is used for extruding the adding first switch 137, and the adding branch pipe 139 is used for aligning with the adding absorption hole 1310, so that the cleaning liquid in the cleaning liquid annular box 5 flows into the adding absorption hole 1310, thereby ensuring the normal operation of the device.

[0047] The outer surface of the adding cleaning liquid pipe 131 is sleeved and slidably connected with the adding floating plate 1311, the top of the adding floating plate 1311 is fixedly connected with the adding closing extrusion rod 1312, the outer surface of the adding cleaning liquid pipe 131 is sleeved and fixedly connected with the adding closing mounting plate 1313, the bottom of the adding closing mounting plate 1313 is fixedly connected with the adding second switch 1314, and the outer surface of the adding cleaning liquid pipe 131 is provided with the adding electromagnetic control valve 1315.

[0048] By adopting the above technical scheme, the adding floating plate 1311 is used for detecting whether the cleaning sponge 6 is saturated, when the adding floating plate 1311 rises with the liquid surface, the adding closing extrusion rod 1312 is driven to extrude the adding second switch 1314 to make the adding electromagnetic control valve 1315, thereby preventing the cleaning liquid in the cleaning liquid annular box 5 from excessively flowing out, through the adding mechanism, the cleaning liquid in the cleaning liquid annular box 5 is transported into the cleaning sponge 6 through the adding cleaning liquid pipe 131, thereby adding the cleaning liquid to the cleaning sponge 6, and increasing the cleaning effect of the cleaning sponge 6.

[0049] Working principle: start cleaning motor 12 drive winding roller 13 rotation, winding roller 13 rotation will be wound rope 15 winding on winding roller 13, winding rope 15 shortening installation frame 9 to make the first funnel 8 rises, the first funnel 8 drive cleaning installation ring 7 make cleaning sponge 6 rises, cleaning sponge 6 along the main flue 2 rises to the inner surface of the main flue 2 liquefied attached oil fume wiping cleaning, cleaning sewage generated by the first funnel 8 drop to the second funnel 16, the second funnel 16 on the sewage drop to the oil collection bucket 17 for collection, similarly, start cleaning motor 12 make winding roller 13 rotation, winding roller 13 rotation will be wound rope 15 put out, winding rope 15 elongation, due to gravity counterweight 10 drive installation frame 9 to make the first funnel 8 down, the first funnel 8 drive cleaning installation ring 7 make cleaning sponge 6 down, cleaning sponge 6 down to the main flue 2 wiping cleaning, reciprocating wiping the inner surface of the main flue 2 cleaning;

[0050] After cleaning, start cleaning motor 12 will clean sponge 6 rises to the top of the main flue 2, cleaning sponge 6 drive cleaning installation ring 7 make the addition groove 133 rises, the addition groove 133 drive addition reset spring 135 make the addition sealing plate 134 rises, the addition sealing plate 134 and addition resistance plate 132 contact, after cleaning sponge 6 continues to rise, the addition of cleaning liquid pipe 131 drive addition resistance plate 132 extrusion addition sealing plate 134 make addition reset spring 135 shrinkage, at the same time, the addition of sealing plate 134 drive addition extrusion rubber rod 138 extrusion addition first switch 137, addition first switch 137 is extruded to open the addition of electromagnetic control valve 1315, cleaning liquid in cleaning liquid ring box 5 in turn through the addition of cleaning liquid pipe 131, addition branch 139 and addition absorption hole 1310 is absorbed by cleaning sponge 6, when cleaning sponge 6 absorption saturation, the liquid level of cleaning liquid along the addition groove 133 rises, due to buoyancy, addition floating plate 1311 along with the liquid level rises, addition floating plate 1311 drive addition closing extrusion rod 1312 extrusion addition second switch 1314, so as to close the addition of electromagnetic control valve 1315, prevent the cleaning liquid in cleaning liquid ring box 5 overflow;

[0051] When the smoke exhaust peak period, start filter motor 1213 drive filter rotary shaft 1214 rotation, filter rotary shaft 1214 drive filter first rotary blade 1215 and filter second rotary blade 1216 rotation, increase the flow speed of air, the flue gas in the main exhaust duct 2 into the first filter screen 122 and filter second partition 1212 between, the flue gas flows to the right through the first filter screen 122 preliminary filtration, flue gas continues to flow to the right through the secondary filter screen 123 secondary filtration, flue gas continues to flow to the right into the filter centrifugal impeller 125, filter rotary shaft 1214 rotation drive filter centrifugal impeller 125 rotation, filter centrifugal impeller 125 rotation will flue gas exhaust to the filter installation ring 126, filter installation ring 126 in the flue gas through the three filter screen 127 three times filtration, flue gas in turn through the filter outlet hole 128 and filter elbow joint 129 into the HEPA filter 1210, HEPA filter 1210 on the flue gas four times filtration, the final clean flue gas through the non resistance air cap 1211 exhaust.

[0052] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A centralized collection and purification device for domestic oil fume, comprising a top floor (1) and a main smoke exhaust duct (2) arranged at the bottom of the top floor (1), characterized in that: The outer surface of the main smoke exhaust duct (2) is communicated with branch smoke exhaust ducts (3), the number of the branch smoke exhaust ducts (3) is set to be several, one end of the branch smoke exhaust duct (3) is provided with an extractor hood (4), the bottom of the top floor (1) and located at the outer periphery of the main smoke exhaust duct (2) is fixedly connected with a cleaning liquid annular box (5), the inner surface of the main smoke exhaust duct (2) is slidably connected with a cleaning sponge (6), the inner surface of the cleaning sponge (6) is fixedly connected with a cleaning mounting ring (7), the inner surface of the cleaning mounting ring (7) is fixedly connected with a first funnel (8), the bottom of the first funnel (8) is fixedly connected with a mounting rack (9), the bottom of the mounting rack (9) is fixedly connected with a counterweight (10), the top of the top floor (1) is fixedly connected with a filter box (11), the inner surface of the filter box (11) is fixedly connected with a cleaning motor (12), the inner surface of the filter box (11) is rotatably connected with a winding roller (13), one end of the output shaft of the cleaning motor (12) is fixedly connected with the rotating shaft of the winding roller (13), the inner surface of the filter box (11) is rotatably connected with a fixed pulley (14), the outer surface of the winding roller (13) and the top of the mounting rack (9) are connected through a winding rope (15), the outer surface of the winding rope (15) is in close contact with the inner surface of the fixed pulley (14), the inner cavity of the filter box (11) is provided with a filtering mechanism, and the inner surface of the cleaning liquid annular box (5) is provided with an adding mechanism; The adding mechanism comprises four adding cleaning liquid pipes (131), one end of the adding cleaning liquid pipe (131) is communicated with the inner surface of the cleaning liquid annular box (5), the other end of the adding cleaning liquid pipe (131) is fixedly connected with an adding abutting plate (132), the top of the cleaning mounting ring (7) is provided with four adding grooves (133), the inner surface of the adding groove (133) is slidably connected with an adding sealing plate (134), the inner surface of the adding groove (133) is fixedly connected with an adding return spring (135), one end of the adding return spring (135) is fixedly connected with the bottom of the adding sealing plate (134), the inner surface of the adding groove (133) is fixedly connected with an adding extrusion spring (136), one end of the adding extrusion spring (136) is fixedly connected with an adding first switch (137); The bottom of the adding sealing plate (134) is fixedly connected with an adding extrusion rubber rod (138), the outer surface of the adding cleaning liquid pipe (131) is communicated with an adding branch pipe (139), and the inner surface of the adding groove (133) is provided with an adding absorption hole (1310) matched with the adding branch pipe (139).

2. The central collecting and purifying device for domestic oil fume according to claim 1, characterized in that, The inner surface of the main smoke exhaust duct (2) is fixedly connected with a second funnel (16), the inner surface of the main smoke exhaust duct (2) and below the second funnel (16) is provided with an oil and dirt collecting barrel (17), and the outer surface of the main smoke exhaust duct (2) is provided with a mounting groove (18) matched with the oil and dirt collecting barrel (17).

3. The device according to claim 1, characterized in that, The filtering mechanism comprises a first filtering screen (122), the outer surface of the first filtering screen (122) is fixedly connected with the inner surface of the filtering box (11), the inner surface of the filtering box (11) is fixedly connected with a second filtering screen (123), the inner surface of the filtering box (11) is fixedly connected with a filtering first partition plate (124), and one side of the filtering first partition plate (124) is communicated with a filtering centrifugal impeller (125).

4. The central collecting and purifying device for domestic oil fume according to claim 3, characterized in that, One side of the filtering first partition plate (124) and outside the filtering centrifugal impeller (125) are fixedly connected with a filtering mounting partition ring (126), the inner surface of the filtering mounting partition ring (126) is fixedly connected with a third filtering screen (127), one side of the filtering box (11) is provided with a filtering air outlet hole (128), one side of the filtering box (11) is fixedly connected with a filtering elbow joint (129), one end of the filtering elbow joint (129) is fixedly connected with a HEPA filter (1210), and the top end of the HEPA filter (1210) is provided with a non-blocking air cap (1211).

5. The central collecting and purifying device for domestic oil fume according to claim 4, characterized in that, The inner surface of the filtering box (11) is fixedly connected with a filtering second partition plate (1212), one side of the filtering second partition plate (1212) is fixedly connected with a filtering motor (1213), one end of the output shaft of the filtering motor (1213) is fixedly connected with a filtering rotating shaft (1214), and the outer surface of the filtering rotating shaft (1214) and between the first filtering screen (122) and the second filtering screen (123) is fixedly connected with a filtering first rotating blade (1215).

6. The central collecting and purifying device for domestic oil fume according to claim 5, characterized in that, The outer surface of the filtering rotating shaft (1214) and between the second filtering screen (123) and the filtering first partition plate (124) is fixedly connected with a filtering second rotating blade (1216), and one end of the filtering rotating shaft (1214) is fixedly connected with one end of the input shaft of the filtering centrifugal impeller (125).

7. The central collecting and purifying device for domestic oil fume according to claim 6, characterized in that, The outer surface of the cleaning liquid adding pipe (131) is sleeved and slidably connected with an adding floating plate (1311), the top of the adding floating plate (1311) is fixedly connected with an adding closing extrusion rod (1312), the outer surface of the cleaning liquid adding pipe (131) is sleeved and fixedly connected with an adding closing mounting plate (1313), the bottom of the adding closing mounting plate (1313) is fixedly connected with an adding second switch (1314), and the outer surface of the cleaning liquid adding pipe (131) is provided with an adding electromagnetic control valve (1315).

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