CN112604364A

CN112604364A - Composite dirt remover

Info

Publication number: CN112604364A
Application number: CN202011463958.6A
Authority: CN
Inventors: 张爱军; 张绍庭; 刘青林; 赵志蓬
Original assignee: Shandong Shunye Pressure Vessel Co ltd
Current assignee: Shandong Shunye Pressure Vessel Co ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-04-06
Anticipated expiration: 2040-12-12
Also published as: CN112604364B

Abstract

The utility model relates to a composite dirt separator, it includes a jar body, one-level filtering mechanism and secondary filter mechanism all install in jar internally, and one-level filtering mechanism is located secondary filter mechanism's below, one-level filtering mechanism's filter fineness is greater than secondary filter mechanism's filter fineness, the internal cavity of jar is separated for three cavity by one-level filtering mechanism and secondary filter mechanism, and three cavity is unfiltered chamber, one-level filtering chamber and secondary filter chamber respectively, one-level filtering mechanism separates unfiltered chamber and one-level filtering chamber, secondary filter mechanism separates one-level filtering chamber and secondary filter chamber, tank connection has the inlet tube with unfiltered chamber intercommunication, tank connection has the outlet pipe with secondary filter chamber intercommunication, tank connection has the blow off pipe with unfiltered chamber intercommunication. This application has the effect of conveniently clearing up the impurity in the compound dirt separator.

Description

Composite dirt remover

Technical Field

The application relates to the field of filtration equipment, in particular to a composite dirt separator.

Background

A cleaner is a member for removing and filtering foreign materials and dirt in pipes, and has functions of maintaining the cleanliness of water in a system, reducing resistance, protecting equipment, and preventing clogging of pipes. The fluid is typically filtered using a filter screen. In order to improve the filtering effect of the dirt separator, two layers of filter screens with different meshes are arranged in part of the dirt separator, so that the purpose of classified filtering is achieved, and the dirt separator is also called as a composite dirt separator.

Aiming at the related technologies, the inventor thinks that the mesh number of the two layers of filter screens is different, and partial impurities can be retained between the two layers of filter screens, so that the composite dirt separator has the problem that partial impurities are difficult to clean.

Disclosure of Invention

In order to conveniently clear up the impurity in the compound dirt separator, this application provides a compound dirt separator.

The application provides a compound dirt separator adopts following technical scheme:

the utility model provides a compound dirt separator, includes a jar body, one-level filtering mechanism and secondary filter mechanism all install in the jar internally, and one-level filtering mechanism is located secondary filter mechanism's below, one-level filtering mechanism's filter fineness is greater than secondary filter mechanism's filter fineness, the internal cavity of jar is separated for three cavity by one-level filtering mechanism and secondary filter mechanism, and three cavity is unfiltered chamber, one-level filter chamber and secondary filter chamber respectively, one-level filtering mechanism separates unfiltered chamber and one-level filter chamber, secondary filter mechanism separates one-level filter chamber and secondary filter chamber, tank connection has the inlet tube with unfiltered chamber intercommunication, tank connection has the outlet pipe with secondary filter chamber intercommunication, tank connection has the blow off pipe with unfiltered chamber intercommunication.

By adopting the technical scheme, fluid flows through the first-stage filtering mechanism and the second-stage filtering mechanism in sequence after entering the tank body from the water inlet pipe, and then is discharged out of the tank body from the water outlet pipe. When the fluid flows through the primary filtering mechanism, impurities with larger particles are blocked in the unfiltered cavity; then, when the fluid flows through the secondary filter mechanism, the smaller particles of impurities are blocked in the primary filter chamber. When the dirt separator stops to work, the fluid does not flow, and under the action of gravity, because the filter fineness of one-level filtering mechanism is greater than the filter fineness of second grade filtering mechanism, so the granule in the one-level filter chamber sinks and can pass one-level filtering mechanism to get into the unfiltered chamber, make all impurity of filtering separation concentrate in the unfiltered chamber, then open the blow off pipe, with the impurity discharge of filtering separation can. The structure of the composite dirt separator reduces impurities retained between the two filtering mechanisms, thereby reducing the difficulty of cleaning the impurities.

Optionally, the one-level filtering mechanism includes the one-level filter screen, the one-level filter screen is taper or round platform form, the one-level filter screen is coaxial setting with the jar body, the great one end fixed connection of diameter in the jar internal wall of one-level filter screen.

Through adopting above-mentioned technical scheme, increase the area of one-level filter screen, promote filtration efficiency.

Optionally, the first-stage filtering mechanism further comprises a support frame, one end of the support frame is fixedly connected to the end, with the smaller diameter, of the first-stage filter screen, and the other end of the support frame is fixedly connected to the inner wall of the tank body.

Through adopting above-mentioned technical scheme, utilize the support frame to promote the stability of one-level filter screen.

Optionally, the primary filter screen is round table-shaped and comprises a round table surface net and a bottom plate, the end with the larger diameter of the round table surface net is fixedly connected to the inner wall of the tank body, the end with the smaller diameter of the round table surface net is coaxially and fixedly connected to the bottom plate, the diameter of the bottom plate is larger than that of the end with the smaller diameter of the round table surface net, a plurality of filter holes are formed in the area, located in the round table surface net, of the bottom plate, the aperture of each filter hole is the same as that of the filter hole of the round table surface net, and the end, far away from the side wall of the tank body, of the.

Through adopting above-mentioned technical scheme, avoid leading to the problem that partial filtration pore is covered on the primary filter screen because of fixed support frame. A plurality of filtering holes are formed in the area, located in the circular table top net, of the bottom plate, when the dirt separator does not work, impurities in the primary filtering cavity can penetrate through the filtering holes of the bottom plate to enter the non-filtering cavity, and the impurities deposited on the primary filtering net are reduced.

Optionally, the water inlet pipe is in a shape that the central axis is a non-coplanar straight line and is perpendicular to the central axis of the primary filter screen.

Through adopting above-mentioned technical scheme, when fluid gets into the internal, can form rotatory rivers from the inlet tube. Rotatory rivers can make the great impurity of quality in the rivers contact with jar internal wall under the effect of centrifugal force, lead to the kinetic energy of these impurities to reduce and sink to jar body bottom to reduce the filter pressure of one-level filter screen.

Optionally, the secondary filtering mechanism comprises a cylindrical net, one end of the cylindrical net is closed, and the other end of the cylindrical net is communicated with the water outlet pipe.

By adopting the technical scheme, the cylinder net has larger filtering area and occupies smaller space.

Optionally, the tank body is fixedly connected with an installation pipe communicated with the primary filter cavity, the installation pipe and the water outlet pipe are coaxially arranged, one end of the cylindrical net, far away from the water outlet pipe, is coaxially and fixedly connected with a flange cover, the flange cover is connected to the installation pipe and seals the installation pipe, and one end of the cylindrical net, far away from the flange cover, is coaxially inserted into the water outlet pipe.

Through adopting above-mentioned technical scheme, convenient to detach and installation second grade filtering mechanism make things convenient for the washing of cylinder net or change the cylinder net of different mesh.

Optionally, the inner wall of the water outlet pipe is coaxially and fixedly connected with a baffle ring, and the end face of one end of the cylindrical net penetrating into the water outlet pipe abuts against the end face of the baffle ring.

Through adopting above-mentioned technical scheme, promote the stability of drum network mounting structure, realized the sealing connection between drum network and the outlet pipe through the butt of drum network with keeping off the ring terminal surface simultaneously.

Optionally, many tracks of internal fixedly connected with of jar, the track is on a parallel with the central axis of drum network, the track is contradicted in drum network lateral wall, and two are adjacent interval between the track is less than the diameter of drum network.

By adopting the technical scheme, when the cylindrical net is installed, the cylindrical net is guided by the rail, so that the cylindrical net is convenient to install. Meanwhile, the rail can be used for supporting the cylinder net, so that vibration generated when the cylinder net filters faster water flow is reduced, and the stability of the cylinder net is improved.

Optionally, the outer wall of the circular truncated cone net is fixedly connected to the plurality of air guide hoods, the number of the air guide hoods is the same as that of the filter holes in the circular truncated cone net, the air guide hoods correspond to the filter holes in the circular truncated cone net in a one-to-one manner, the air guide hoods are 1/4 spherical surfaces and are covered at the filter holes, and openings on one sides of all the air guide hoods face the flowing direction of the fluid in the unfiltered cavity;

the blind flange rotates to be connected in the installation pipe, the jar body is installed drive blind flange forward or direction pivoted driving motor, the drum network includes a plurality of arc filter screen that use the blind flange central axis to evenly set up as central line circumference, arc filter screen extends to the drum network along the spiral line, one arc filter screen is close to drum network central axis's one end and another the one end that drum network central axis was kept away from to arc filter screen overlaps, adjacent two form the circulation runner between the arc filter screen.

By adopting the technical scheme, the water flow in the unfiltered cavity flows spirally, the opening of the air guide sleeve faces to the flowing direction of the fluid, and the fluid needs to form a sharp-return turn to enter the primary filtering cavity from the air guide sleeve. The great impurity of quality, inertia is also great, so be difficult for going on the sharp turn back turn, so be difficult for getting into one-level filter chamber, thereby promote the filter effect.

The driving motor drives the flange cover to rotate, when the flange cover rotates along the direction in which the circulating flow channel spirally extends inwards, the cylindrical net fixedly connected with the flange cover also rotates along with the flange cover, and two filtering modes exist at the same time. Firstly, impurities which cannot pass through the filtering holes are blocked outside the cylindrical net after passing through the filtering holes on the arc-shaped filter screen and entering the cylindrical net; secondly, the liquid needs to form a sharp-return turn to enter the cylinder network from the circulation flow channel, and impurities with larger mass have larger inertia and are not easy to make the sharp-return turn so as not to enter the cylinder network. Even if the filtering holes on the arc-shaped filtering net are blocked, the fluid is filtered in a second mode.

When the flange cover rotates towards the other direction, fluid in the primary filter cavity enters the cylindrical filter along the circulation flow channel under the guide of the arc-shaped filter screen, and particularly when the filter holes of the arc-shaped filter screen are blocked, the guide effect of the arc-shaped filter screen on the fluid is stronger. At the moment, the water outlet pipe is closed, so that the fluid continuously flows into the cylindrical net through the circulation channel, the pressure in the cylindrical net is increased, and the fluid in the cylindrical net passes through the filtering holes of the arc-shaped filtering net to enter the primary filtering cavity, so that the arc-shaped filtering net is cleaned. After the cleaning is finished, the cylindrical net is rotated in the forward direction, and the particle impurities in the cylindrical net are discharged from the circulation flow channel.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through setting up two filtering mechanism to the great one-level filtering mechanism of filter fineness is located the less below of second grade filtering mechanism of filter fineness. When the dirt separator stops working, the fluid does not flow, and under the action of gravity, particles in the primary filter cavity sink and can pass through the primary filter mechanism, so that the particles enter the unfiltered cavity, all the filtered and separated impurities are concentrated in the unfiltered cavity, then the sewage discharge port is opened, and the filtered and separated impurities are discharged. The structure of the composite dirt separator reduces impurities retained between the two filtering mechanisms, thereby reducing the difficulty of cleaning the impurities.

2. The filter screen of the first-stage filter mechanism is in a round table shape, the filter screen of the second-stage filter mechanism is in a cylindrical shape, and the filter screen have larger filter areas and occupy smaller space, so that the dirt separator has extremely high filter efficiency, and meanwhile, the volume is not too large;

3. through setting up the stability that keeps off ring and track promotion cylinder net, through setting up the stability that bottom plate and support frame promote the round platform net.

Drawings

FIG. 1 is a schematic structural diagram for showing an overall structure according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of an embodiment of the present application showing the internal structure;

FIG. 3 is a cross-sectional view of an embodiment of the present application showing a base plate;

FIG. 4 is a cross-sectional view of an embodiment of the present application showing another embodiment of a frustoconical web;

FIG. 5 is a schematic structural diagram illustrating a two-stage filter mechanism according to an embodiment of the present disclosure;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic structural diagram of a track showing an embodiment of the present application, wherein a primary filtering mechanism and a secondary filtering mechanism are hidden, and 1/4 is cut away from a tank body;

FIG. 8 is a cross-sectional view of an embodiment of the present application showing another embodiment of a two-stage filter mechanism;

fig. 9 is a schematic structural diagram for showing a curved filter screen according to an embodiment of the present application.

Description of reference numerals: 100. a tank body; 101. an unfiltered chamber; 102. a primary filter chamber; 103. a secondary filter chamber; 104. a water inlet pipe; 105. a water outlet pipe; 106. a barrel; 107. an upper end enclosure; 108. a lower end enclosure; 109. a support; 110. a blow-off pipe; 111. an inspection tube; 112. an access cover; 113. an exhaust pipe; 114. lifting lugs; 115. installing a pipe; 116. a baffle ring; 117. a track; 200. a primary filtering mechanism; 201. a first-stage filter screen; 202. a support frame; 203. a circular truncated cone web; 204. a base plate; 205. a pod; 300. a secondary filtering mechanism; 301. a cylindrical net; 302. a flange cover; 303. a support ring; 304. an arc-shaped filter screen; 305. a flow passage; 306. a drive motor; 307. a mounting seat; 308. a gear; 309. a ring gear.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses a composite dirt separator.

Referring to fig. 1 and 2, the sewage separator includes a tank 100, a primary filtering mechanism 200, and a secondary filtering mechanism 300. Wherein the primary filtering mechanism 200 and the secondary filtering mechanism 300 are both arranged in the tank 100, and the cavity in the tank 100 is divided into three chambers by the primary filtering mechanism 200 and the secondary filtering mechanism 300. The three chambers are unfiltered chamber 101, primary filtered chamber 102 and secondary filtered chamber 103, wherein primary filtering mechanism 200 separates unfiltered chamber 101 from primary filtered chamber 102, and secondary filtering mechanism 300 separates primary filtered chamber 102 from secondary filtered chamber 103. The tank body 100 is fixedly connected with a water inlet pipe 104 and a water outlet pipe 105, wherein the water inlet pipe 104 is communicated with the unfiltered cavity 101, and the water outlet pipe 105 is communicated with the secondary filtering cavity 103. The fluid to be filtered enters the tank 100 through the inlet pipe 104, flows through the primary filtering mechanism 200 and the secondary filtering mechanism 300 in sequence, and then is discharged out of the tank 100 through the outlet pipe 105. When the fluid flows through the primary filter mechanism 200 and the secondary filter mechanism 300, the particulate impurities in the water are blocked by the primary filter mechanism 200 and the secondary filter mechanism 300, thereby filtering the fluid flowing through the dirt separator.

Referring to fig. 1, the can 100 includes a can 106, an upper head 107, and a lower head 108. The cylinder 106 is a vertically arranged cylindrical housing, and both the upper and lower ends thereof are opened. The upper end cap 107 is fixedly connected to the upper end of the cylinder 106 and closes the upper end opening. The lower end cap 108 is fixedly connected to the lower end of the cylinder 106 and closes the lower opening thereof. The upper end enclosure 107 and the lower end enclosure 108 are both spherical shells, and the fixed connection between the upper end enclosure and the cylinder 106 may be bolt connection, thread connection, welding fixation or integral molding, and in this embodiment, the fixed connection between the upper end enclosure and the cylinder 106 is welding fixation.

Referring to fig. 2, the water inlet pipe 104 is fixedly connected to the lower portion of the sidewall of the cylinder 106, and the water outlet pipe 105 is fixedly connected to the upper portion of the sidewall of the cylinder 106 facing away from the water inlet pipe 104. The fixed connection between the water inlet pipe 104 and the cylinder 106 and between the water outlet pipe 105 and the cylinder 106 may be bolt connection, thread connection, welding or integral molding, and in this embodiment, the fixed connection between the water inlet pipe 104 and the cylinder 106 is welding.

Referring to fig. 2, in order to provide support for the tank 100, three vertically arranged supports 109 are welded to the outer wall of the lower head 108, and the three supports 109 are circumferentially arranged with the central line of the tank 100 as the central axis.

Referring to fig. 2, a sewage draining pipe 110 communicated with the unfiltered cavity 101 is fixedly connected to the bottom of the lower end enclosure 108, and the sewage draining pipe 110 is used for communicating with the switch valve. When the dirt separator works, the switch valve is in a closed state. When the impurities blocked in the unfiltered cavity 101 by the primary filtering mechanism 200 need to be cleaned, the switch valve is opened, and the particle impurities in the unfiltered cavity 101 are discharged from the sewage discharge pipe 110 along with the water flow.

Referring to fig. 2, in order to facilitate the maintenance of the primary filtering mechanism 200, an inspection pipe 111 communicated with the unfiltered cavity 101 is fixedly connected to one end of the tank 100 away from the water inlet pipe 104, and the central axis of the inspection pipe 111 is perpendicular to the central axis of the tank 100, so that the inspection pipe 111 faces the primary filtering mechanism 200. An access cover 112 is fixedly connected to the inspection tube 111 through bolts, and the access cover 112 is used for sealing the inspection tube 111. When service is required, access cover 112 can be removed and primary filter mechanism 200 can then be inspected through inspection tube 111.

Referring to fig. 2, an exhaust pipe 113 is welded to the top end of the upper head 107, and the exhaust pipe 113 is connected to an exhaust valve. The liquid to be filtered and decontaminated is mixed with gas, and the gas is collected at the top of the tank 100 and finally discharged from the exhaust pipe 113, so that the gas accumulated in the tank 100 is reduced.

Referring to fig. 2, two lifting lugs 114 are further welded to the outer wall of the upper end of the upper head 107, and the two lifting lugs 114 are arranged in axial symmetry with the exhaust pipe 113 as a central axis. The lifting lugs 114 can facilitate the connection of the dirt separator and the lifting equipment, thereby facilitating the lifting and transportation of the dirt separator.

Referring to fig. 2, the primary filter mechanism 200 includes a primary filter screen 201 and a support frame 202. The primary filter 201 is disposed in a conical or circular truncated cone shape, and is coaxially disposed at a lower position in the tank 100. The end of the primary filter screen 201 with the larger diameter faces upward and is fixedly connected to the inner wall of the cylinder 106, and the end with the smaller diameter extends downward. The support frame 202 is used for supporting the smaller diameter end of the primary filter screen 201, and the support frame 202 is used for improving the stability of the primary filter screen 201.

Referring to fig. 2 and 3, in the present embodiment, the primary filter screen 201 is in a circular truncated cone shape, and includes a circular truncated cone mesh 203 and a bottom plate 204. The larger diameter end of the circular truncated cone net 203 is welded to the inner wall of the cylinder 106. The end with the smaller diameter of the circular truncated cone net 203 is coaxially and fixedly connected to the bottom plate 204, and the diameter of the bottom plate 204 is larger than that of the end with the smaller diameter of the circular truncated cone net 203. The area of the center of the bottom plate 204 in the circular truncated cone net 203 is provided with a plurality of filtering holes, and the aperture of the filtering holes is the same as that of the filtering holes of the circular truncated cone net 203.

Referring to fig. 2 and 3, when the dirt separator stops working, the fluid does not flow, and under the action of gravity, the impurities in the primary filtering cavity 102 sink and can pass through the filtering holes of the circular truncated cone-shaped mesh 203 and the bottom plate 204 to enter the unfiltered cavity 101, so that all the filtered and separated impurities are concentrated at the bottom of the unfiltered cavity 101, and then the sewage discharge pipe 110 is opened to discharge the filtered and separated impurities.

Referring to fig. 2 and 3, three support frames 202 are provided, and are circumferentially arranged with the primary filter screen 201 as a center. The supporting frame 202 is disposed in an inclined manner, the inclined lower end thereof is welded to the inner wall of the tank 100, and the inclined upper end thereof is welded to the edge of the bottom plate 204 where no filtering hole is formed. The arrangement can avoid the problem that part of the filter holes on the primary filter screen 201 are covered due to the fixed support frame 202.

Referring to fig. 2, in order to reduce the filtering pressure of the primary filtering mechanism 200, the following settings are made: the central axis of the water inlet pipe 104 and the central axis of the primary filter screen 201 are in a straight line with different planes and are mutually vertical. When fluid enters the tank 100 from the inlet pipe 104, a rotating water flow is formed under the guidance of the side wall of the tank 100. The rotating water flow can make the larger impurities with mass in the water flow contact with the inner wall of the tank body 100 under the action of centrifugal force, so that the kinetic energy of the impurities is reduced and the impurities sink to the bottom of the tank body 100, and the filtering pressure of the first-stage filter screen 201 is reduced. Meanwhile, the water inlet pipe 104 is arranged not to be over against the primary filter screen 201, so that the impact of water flowing from the water inlet pipe 104 on the primary filter screen 201 is reduced, and the service life of the primary filter screen 201 is prolonged.

Referring to fig. 4, in another embodiment of the present application, the outer wall of the circular truncated cone net 203 is fixedly connected to a plurality of air guides 205, the number of the air guides 205 is the same as the number of the filter holes of the circular truncated cone net 203, and the filter holes of the air guides 205 and the circular truncated cone net 203 correspond to each other in a one-to-one manner.

Referring to fig. 4, the dome 205 is shaped like 1/4 sphere and covers the filter holes, and all of the dome 205 is open at one side toward the direction of fluid flow in the unfiltered chamber 101. The fluid in the unfiltered chamber 101 spirals and the opening of the baffle 205 is oriented in the direction of fluid flow, and the fluid needs to make a sharp turn from the baffle 205 into the inner primary chamber 102. The impurity with large mass has large inertia and is not easy to make a sharp turn, so that the impurity is not easy to enter the primary filter cavity 102, thereby improving the filtering effect.

Referring to fig. 2, the secondary filter mechanism 300 is installed in the tank 100 above the primary filter mechanism 200, and the secondary filter mechanism 300 has a filtering accuracy smaller than that of the primary filter mechanism 200, so that some fine particulate impurities that can pass through the primary filter mechanism 200 are blocked in the primary filter chamber 102 by the secondary filter mechanism 300.

Referring to fig. 5, secondary filter mechanism 300 includes cylindrical mesh 301 and flange cover 302. The cylindrical net 301 is a cylindrical filter net with openings at both ends, and the aperture of the filter holes is smaller than that of the filter holes on the circular truncated cone net 203. A flange cover 302 is coaxially welded to one end of cylinder net 301, and flange cover 302 is used to close the opening at one end of cylinder net 301.

Referring to fig. 5, in order to install the secondary filtering mechanism 300, the cylinder 106 is fixedly connected with an installation pipe 115 communicated with the primary filtering chamber 102, and the installation pipe 115 and the water outlet pipe 105 are coaxially arranged. A cylindrical mesh 301 is inserted into the tank 100 from the installation pipe 115 and extends into the outlet pipe 105. The flange cover 302 is fixedly attached to the mounting tube 115 by bolts, and a rubber gasket may be installed between the flange cover 302 and the mounting tube 115 in order to ensure sealing. The fluid in the primary filter chamber 102 passes through the cylindrical net 301 to enter the secondary filter chamber 103, and finally flows out of the tank body 100 through the water outlet pipe 105. The space in the cylinder net 301 is the secondary filter chamber 103.

Referring to fig. 5, support rings 303 are fixedly connected to both ends and an axial middle position of cylindrical net 301, support rings 303 are coaxially welded in cylindrical net 301, and an outer wall of support rings 303 is attached to an inner wall of cylindrical net 301, thereby improving structural strength of cylindrical net 301.

Referring to fig. 5 and 6, in order to further improve the stability of the installation structure of the cylinder net 301, a stop ring 116 is coaxially and fixedly connected to the inner wall of the water outlet pipe 105, and an end face of the cylinder net 301 penetrating into the water outlet pipe 105 abuts against an end face of the stop ring 116. Meanwhile, the cylinder net 301 is abutted against the side wall of the end face of the baffle ring 116, so that the cylinder net 301 is hermetically connected with the water outlet pipe 105.

Referring to fig. 5 and 7, to facilitate installation of the cylinder mesh 301, two rails 117 are welded within the tank 100. Rails 117 are parallel to the central axis of cylinder mesh 301, rails 117 abut against the outer side walls of cylinder mesh 301, and the distance between two rails 117 is smaller than the diameter of cylinder mesh 301. When installing cylinder net 301, cylinder net 301 is guided by rails 117, and installation of cylinder net 301 is facilitated. Meanwhile, the rails 117 can be used for supporting the cylinder net 301, so that vibration generated when the cylinder net 301 filters fast water flow is reduced, and the stability of the cylinder net 301 is improved.

Referring to fig. 8, in another embodiment of the present application, a secondary filter mechanism 300 is rotatably coupled to the mounting tube 115 and the canister 100 is provided with a drive motor 306 for rotating the flanged cap 302.

Referring to fig. 8, secondary filter mechanism 300 includes a flanged cap 302 and a cylindrical mesh 301. The flange cover 302 is coaxially rotatably connected to the mounting tube 115 and sealed therebetween by a mechanical seal.

Referring to fig. 8 and 9, the cylindrical net 301 includes a plurality of arcuate filter screens 304, and the arcuate filter screens 304 are circumferentially and uniformly arranged with the central axis of the flange cover 302 as a center line. One end of each of the arc-shaped filter screens 304 extends spirally towards the inside of the cylindrical net 301, one end of one of the arc-shaped filter screens 304 close to the central axis of the cylindrical net 301 is overlapped with one end of the other arc-shaped filter screen 304 far away from the central axis of the cylindrical net 301, a flow passage 305 is formed between every two adjacent arc-shaped filter screens 304, and the flow passage 305 extends towards the inside of the cylindrical net 301 along a spiral line.

Referring to fig. 8 and 9, when the cylinder net 301 is rotated in the forward direction (forward direction: the direction in which the flow channel 305 extends into the cylinder net 301, and the reverse direction mentioned later is the forward and reverse direction), there are two filtration modes at the same time. Firstly, impurities which cannot pass through the filtering holes are blocked outside the cylindrical net 301 after passing through the filtering holes on the arc-shaped filter screen 304 and entering the cylindrical net 301; second, since the outward opening of the flow channel 305 is directed in the direction opposite to the rotation direction of the cylinder net 301, the fluid needs to make a sharp turn to enter the cylinder net 301 from the flow channel 305, and the impurities having a large mass have a large inertia, so that the fluid is not likely to make a sharp turn and is not likely to enter the cylinder net 301. Even if the filter holes in the arced filter 304 become clogged, there is a second way to filter the fluid.

Referring to fig. 8 and 9, the water outlet pipe 105 is closed, the dirt separator is allowed to stand for a period of time, after the particulate impurities in the primary filter chamber 102 are settled in the unfiltered chamber 101, the cylindrical net 301 is then rotated in the reverse direction, the fluid in the primary filter chamber 102 enters the cylindrical net 301 along the flow passage 305 under the guidance of the arc-shaped filter screen 304, and particularly when the filter holes of the arc-shaped filter screen 304 are blocked, the guide effect of the arc-shaped filter screen 304 on the fluid is stronger. At this time, because the water outlet pipe 105 is closed, the fluid continuously flows through the flow channel 305 into the cylindrical net 301, so that the pressure in the cylindrical net 301 is increased, and the fluid in the cylindrical net 301 passes through the filtering holes of the arc-shaped filtering net 304 and enters the primary filtering cavity 102, thereby cleaning the arc-shaped filtering net 304. After the cleaning is completed, the cylindrical net 301 is rotated in the forward direction, and the particulate impurities in the cylindrical net 301 are discharged from the flow channel 305.

Referring to fig. 8 and 9, the driving motor 306 is fixedly coupled to the can 100 through a mounting seat 307. The mounting seat 307 is welded to the outer wall of the tank 100, and the driving motor 306 is fixedly connected to the mounting seat 307 by bolts. The driving motor 306 is coaxially and fixedly connected with a gear 308, the side wall of the flange cover 302 is coaxially and fixedly connected with a gear ring 309, and the gear 308 is meshed with the gear ring 309.

The implementation principle of the composite dirt separator in the embodiment of the application is as follows: the fluid enters the tank 100 from the inlet pipe 104, and because the central axis of the inlet pipe 104 is coplanar with the central axis of the primary filter screen 201 and perpendicular to each other, the fluid forms a rotating water flow in the tank 100, and the rotating water flow causes the larger impurities in the water flow to contact with the tank wall under the action of centrifugal force, so that the kinetic energy of the impurities is reduced and the impurities sink to the bottom of the tank 100.

The fluid passes through the primary filter screen 201 and enters the primary filter chamber 102, and the impurity with larger particles is blocked in the unfiltered chamber 101. The fluid in the primary filter chamber 102 then passes through the secondary filter mechanism 300 into the secondary furnace chamber. As the fluid flows through secondary filter mechanism 300, smaller particulate contaminants are trapped within primary filter cavity 102.

When the dirt separator stops working, fluid does not flow, and under the action of gravity, because the filtering precision of the primary filtering mechanism 200 is greater than that of the secondary filtering mechanism 300, particles in the primary filtering cavity 102 sink and can pass through the primary filtering mechanism 200 to enter the unfiltered cavity 101, so that all filtered and separated impurities are concentrated in the unfiltered cavity 101, and then a sewage discharge port is opened to discharge the filtered and separated impurities. The structure of the composite dirt separator reduces impurities retained between the two filtering mechanisms, thereby reducing the difficulty of cleaning the impurities.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a compound dirt separator which characterized in that: comprises a tank body (100), a primary filtering mechanism (200) and a secondary filtering mechanism (300), wherein the primary filtering mechanism (200) and the secondary filtering mechanism (300) are arranged in the tank body (100), the primary filtering mechanism (200) is positioned below the secondary filtering mechanism (300), the filtering precision of the primary filtering mechanism (200) is greater than that of the secondary filtering mechanism (300), a cavity in the tank body (100) is divided into three chambers by the primary filtering mechanism (200) and the secondary filtering mechanism (300), the three chambers are respectively an unfiltered chamber (101), a primary filtering chamber (102) and a secondary filtering chamber (103), the primary filtering mechanism (200) separates the unfiltered chamber (101) from the primary filtering chamber (102), the secondary filtering mechanism (300) separates the primary filtering chamber (102) from the secondary filtering chamber (103), the tank body (100) is connected with a water inlet pipe (104) communicated with the unfiltered chamber (101), the tank body (100) is connected with a water outlet pipe (105) communicated with the secondary filtering cavity (103), and the tank body (100) is connected with a sewage discharge pipe (110) communicated with the unfiltered cavity (101).

2. The composite cleaner of claim 1, wherein: one-level filtering mechanism (200) includes one-level filter screen (201), one-level filter screen (201) are taper shape or round platform form, one-level filter screen (201) are coaxial setting with jar body (100), the great one end fixed connection of diameter in one-level filter screen (201) is in jar body (100) inner wall.

3. The composite cleaner of claim 2, wherein: first-order filter mechanism (200) still include support frame (202), support frame (202) one end fixed connection is in the less one end of first-order filter screen (201) diameter, support frame (202) other end fixed connection is in jar body (100) inner wall.

4. The composite cleaner of claim 3, wherein: the primary filter net (201) is round platform form to it includes round platform face net (203) and bottom plate (204), the great one end fixed connection of round platform face net (203) diameter in jar body (100) inner wall, the coaxial fixed connection in bottom plate (204) of the less one end of round platform face net (203) diameter, the diameter of bottom plate (204) is greater than the diameter of the less one end of round platform face net (203) diameter, a plurality of filtration holes have been seted up in the region that bottom plate (204) are located round platform face net (203), and the aperture of filtering the hole is the same with the aperture of the filtration hole of round platform face net (203), the one end fixed connection of jar body (100) lateral wall is kept away from in support frame (202) has not seted up the position of filtering the hole in bottom plate (204) edge.

5. The composite cleaner of claim 1, wherein: the central axis of the water inlet pipe (104) is the same as the central axis of the primary filter screen (201) and is in a straight line with different surfaces and vertical to each other.

6. The composite sewage remover as claimed in any one of claims 1 to 5, wherein: the secondary filtering mechanism (300) comprises a cylindrical net (301), one end of the cylindrical net (301) is closed, and the other end of the cylindrical net (301) is communicated with the water outlet pipe (105).

7. The composite cleaner of claim 6, wherein: the tank body (100) is fixedly connected with an installation pipe (115) communicated with the primary filter cavity (102), the installation pipe (115) and the water outlet pipe (105) are coaxially arranged, one end, far away from the water outlet pipe (105), of the cylindrical net (301) is coaxially and fixedly connected with a flange cover (302), the flange cover (302) is connected to the installation pipe (115) and seals the installation pipe (115), and one end, far away from the flange cover (302), of the cylindrical net (301) is coaxially inserted into the water outlet pipe (105).

8. The composite cleaner of claim 7, wherein: the inner wall of the water outlet pipe (105) is coaxially and fixedly connected with a baffle ring (116), and the end face of one end, penetrating through the water outlet pipe (105), of the cylindrical net (301) abuts against the end face of the baffle ring (116).

9. The composite cleaner of claim 6, wherein: jar body (100) interior fixedly connected with have many tracks (117), track (117) are on a parallel with the central axis of drum network (301), track (117) are contradicted in drum network (301) lateral wall, and two are adjacent interval between track (117) is less than the diameter of drum network (301).

10. The composite cleaner of claim 7, wherein: the outer wall of the circular truncated cone net (203) is fixedly connected with a plurality of air guide hoods (205), the number of the air guide hoods (205) is the same as that of filter holes in the circular truncated cone net (203), the air guide hoods (205) correspond to the filter holes in the circular truncated cone net (203) in a one-to-one mode, the air guide hoods (205) are 1/4 spherical surfaces and cover the filter holes, and openings on one side of all the air guide hoods (205) face the flowing direction of fluid in the unfiltered cavity (101);

flange cover (302) rotate to be connected in installation pipe (115), drive flange cover (302) forward or direction pivoted driving motor (306) are installed to jar body (100), drum network (301) include a plurality of arc filter screen (304) that use flange cover (302) the central axis to evenly set up as central line circumference, arc filter screen (304) extend to drum network (301) along the spiral line, one arc filter screen (304) are close to drum network (301) the one end and another of central axis arc filter screen (304) keep away from drum network (301) the one end of central axis and overlap, adjacent two form circulation flow channel (305) between arc filter screen (304).