CN209548842U - A kind of duplex strainer - Google Patents

Abstract

The utility model discloses a kind of duplex strainers, including two identical filter bodies, the two filter bodies inlet connects together, liquid outlet connects together, inlet, which is connected on pipeline to be connected with liquid outlet on pipeline, is equipped with Pneumatic three-way valve, the filter body includes sequentially connected upper cover from top to bottom, staving and support leg, it is connected between the upper cover and staving by quick-release arrangement, filter vat is equipped in the staving, filter vat upper end border is equipped with hanging plate, the inner wall of barrel is equipped with support plate corresponding with hanging plate, the filter vat bottom is equipped with outlet tube, the fixing sleeve that the staving bottom is equipped with and outlet tube matches, outlet tube lower end passes through staving and fixing sleeve is fixed on outside staving.The utility model compared with prior art the advantages of be: structure is simple, and filter vat disassembly, cleaning are convenient and efficient, and sealing performance is preferable.

Description

a duplex filter

technical field

The utility model relates to the technical field of duplex filters, in particular to a duplex filter.

Background technique

Duplex filter is also called duplex switching filter. It is composed of two stainless steel filters connected in parallel. It has many advantages such as novel and reasonable structure, good sealing, strong flow capacity, and easy operation. It has a wide range of applications and strong adaptability. The multi-purpose filter equipment, especially the small chance of side leakage of the filter bag, can accurately ensure the filtration accuracy, and basically has no material consumption in the filter, which reduces the operating cost. The double filter uses two three-way ball valves to filter the two single cylinders The filter is assembled together, there is no need to stop the machine when cleaning the filter, just switch to another filter through the three-way ball valve to ensure its continuous operation.

However, the current duplex filter barrel and the upper cover are connected by bolts. The upper end of the filter barrel in the barrel is fixed in the barrel by screws, and the bottom of the filter barrel is welded with a liquid outlet pipe, which passes through the barrel and passes through the barrel. The clamp is connected to the external liquid outlet pipe, so it is troublesome and time-consuming to disassemble the filter barrel for cleaning, and the joint between the liquid outlet pipe and the barrel body is not well sealed, which is easy to leak, waste raw materials, and pollute the ground.

Utility model content

The technical problem to be solved by the utility model is to overcome the above technical defects and provide a duplex filter with simple structure, convenient and fast disassembly and cleaning of the filter barrel, and good sealing performance.

In order to solve the above technical problems, the technical solution provided by the utility model is: a duplex filter, including two identical filter bodies, the liquid inlets of the two filter bodies are connected together, and the liquid outlets are connected together , the pipeline connected to the liquid inlet and the pipeline connected to the liquid outlet are equipped with a pneumatic three-way valve, and the filter body includes an upper cover, a barrel body and a supporting foot connected in sequence from top to bottom, and the upper cover and the barrel The upper circumference of the body is provided with a connecting plate, and the upper and lower connecting plates are provided with a quick disassembly device, the quick disassembly device includes a suspension ring, a tension screw, two fixing plates and bolts, and the upper part of the tension screw is connected to the suspension ring , the bottom is connected between two fixed plates by bolts, the upper cover and the barrel body are tightly connected by a quick disassembly device, a filter barrel is arranged in the barrel body, and a hanging plate is arranged around the upper end of the filter barrel, so The inner wall of the barrel is provided with a support plate corresponding to the hanging plate, the bottom of the filter barrel is provided with a liquid outlet pipe, and the bottom of the barrel body is provided with a fixed sleeve that matches the liquid outlet pipe, and the fixed sleeve includes a fixed The base at the bottom of the bucket body, the liner movably connected in the base and the pressing block connected outside the base, a PTFE packing is arranged between the liner and the base.

Compared with the prior art, the utility model has the advantages that a quick disassembly device is provided between the upper cover and the barrel body, the suspension ring is loosened, and the suspension ring is turned out from the upper and lower connecting plates with the tension bolts, and the disassembly and installation are convenient and quick , the hanging plate around the upper end of the filter barrel is directly placed on the support plate in the barrel, while the lower end of the outlet pipe at the bottom of the filter barrel passes through the barrel and is fixed outside the barrel through a fixing sleeve, and the PTFE packing is squeezed by a briquetting block The deformation presses the bushing, so that the connection between the liquid outlet pipe and the barrel body is firm and tight, and the sealing performance is good, which avoids liquid leakage at the joint between the liquid outlet pipe and the barrel body, and at the same time, the disassembly is quicker.

As an improvement, the bushing is an elastic bushing, and one end of the pressing block located outside the base is connected to the base through a screw, and the bottom of the end of the pressing block inserted in the base is in contact with the PTFE packing, and by tightening the screw, The briquetting block moves up to extrude the PTFE packing, and the PTFE packing deforms under force to squeeze the elastic bushing, so that the bushing is close to the outer wall of the liquid outlet pipe, and the liquid outlet pipe is tightly connected in the fixed sleeve, while the PTFE disk is pure Made of PTFE fiber, it has good flexibility, adjustability and tightness, so that the connection between the outlet pipe and the fixed sleeve is better sealed, and the leakage of liquid is avoided.

As an improvement, a sealing ring is provided between the upper and lower connecting plates, and grooves corresponding to the tensioning screw are formed on the outer edges of the upper and lower connecting plates, the tensioning screw is located in the groove, and the lifting ring There is a spacer between the upper connecting plate and the lifting ring with the tension screw rotating into or out of the groove with the bolt as the center of rotation. When the lifting ring is tightened, the lifting ring presses the upper connecting plate through the gasket and moves down, so that the upper and lower The connection between the two connection plates is tight, and the tension screw is located in the groove, which can prevent the staff from accidentally touching the quick release device and being injured, which improves the safety performance of the equipment. At the same time, there is a sealing ring between the upper and lower connection plates. The upper and lower connecting plates are tightly connected, and external dust can be prevented from entering the barrel from the gap between the upper and lower connecting plates, thereby improving the quality of filtered products.

As an improvement, a washer is provided between the hanging plate and the supporting plate, the bottom circumference of the supporting plate is uniformly welded with ribs, the filter barrel is placed on the supporting plate through the hanging plate at the upper end, and the liquid outlet The upper end of the pipe is threaded to the bottom of the filter barrel, and the lower end of the outlet pipe is fixed on the outside of the barrel through a fixing sleeve. The gasket can play a certain role in shock absorption and avoid rigid contact wear between the hanging plate and the support plate. To extend the service life of the hanging plate and the supporting plate, the hanging plate is directly placed on the supporting plate, and the bottom of the filter barrel is connected to the liquid outlet pipe through threads, so that the filter barrel can be disassembled conveniently and quickly, and the work efficiency is improved.

As an improvement, the upper cover is provided with a water inlet and an automatic exhaust valve, the bottom of the barrel body is welded with a sewage outlet, and the water inlet can send water to the filter on the side that is not working, and flush the filter barrel in the barrel body. The cleaned sewage is discharged through the sewage outlet, and the automatic exhaust valve can automatically discharge the gas generated during the filtration process to ensure the normal operation of the equipment.

A handle is welded on the hanging plate, through which the filter barrel can be unscrewed from the outlet pipe, the structure is simple, and the operation is convenient and fast.

Description of drawings

Fig. 1 is a structural schematic diagram of a duplex filter of the present invention.

Fig. 2 is a top view of one side filter of a duplex filter of the present invention.

Fig. 3 is a schematic diagram of the internal structure of a double filter quick disassembly device A of the present invention.

Fig. 4 is a front view of a quick disassembly device for a duplex filter of the present invention.

Fig. 5 is a schematic diagram of the internal structure of a duplex filter fixing sleeve of the present invention.

As shown in the figure: 1. Filter body, 2. Barrel body, 3. Pneumatic three-way valve, 4. Filter barrel, 5. Hanging plate, 6. Gasket, 7. Rib, 8. Support plate, 9. Outlet Liquid pipe, 10, fixed sleeve, 11, upper cover, 12, quick release device, 13, water inlet, 14, automatic exhaust valve, 15, sewage outlet, 16, lifting ring, 17, gasket, 18, tension screw , 19, fixed plate, 20, bolt, 21, sealing ring, 22, base, 23, bushing, 24, pressing block, 25, PTFE packing, 26, connecting plate two, 27, supporting foot, 28, concave Groove, 29, handle.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

A double filter, including two identical filter bodies 1, the liquid inlets of the two filter bodies 1 are connected together, the liquid outlets are connected together, and the pipes connected to the liquid inlets are connected to the pipes connected to the liquid outlets Pneumatic three-way valves 3 are provided on the top, and the filter body 1 includes an upper cover 11, a barrel body 2 and a supporting foot 27 connected sequentially from top to bottom. Connecting plate 26 is arranged, described upper and lower two connecting plates 26 are provided with quick release device 12, described quick release device 12 comprises suspension ring 16, tension screw rod 18, two fixing plates 19 and bolt 20, described tension screw rod 18 top It is connected with the suspension ring 16, and the bottom is connected between two fixing plates 19 by bolts 20. The upper cover 11 and the barrel body 2 are tightly connected by a quick disassembly device 12, and the barrel body 2 is provided with a filter barrel 4, so A hanging plate 5 is provided around the upper end of the filter barrel 4, a supporting plate 8 corresponding to the hanging plate 5 is provided on the inner wall of the barrel body 2, and a liquid outlet pipe 9 is provided at the bottom of the filter barrel 4. 2. The bottom is provided with a fixed sleeve 10 matched with the liquid outlet pipe 9. The fixed sleeve 10 includes a base 22 fixed on the bottom of the barrel body 2, a bushing 23 movably connected in the base 22, and a pressure clamp connected to the outside of the base 22. Block 24, a PTFE packing 25 is provided between the bushing 23 and the base 22.

The bushing 23 is an elastic bushing. One end of the pressing block 24 located outside the base 22 is connected to the base 22 through a screw.

A sealing ring 21 is provided between the upper and lower connecting plates 26, and a groove 28 corresponding to the tensioning screw 18 is formed on the outer edge of the upper and lower connecting plates 26, and the tensioning screw 18 is located in the groove 28 A spacer 17 is provided between the lifting ring 16 and the upper connecting plate 26, and the lifting ring 16 takes the tensioning screw 18 and rotates into or out of the groove 28 with the bolt 20 as the center of rotation.

A washer 6 is arranged between the hanging plate 5 and the support plate 8, and the bottom circumference of the support plate 8 is evenly welded with a rib 7, and the filter bucket 4 is placed on the support plate 8 through the upper end of the hanging plate 5 , the upper end of the liquid outlet pipe 9 is threadedly connected to the bottom of the filter barrel 4 , and the lower end of the liquid outlet pipe 9 is fixed on the outside of the barrel body 2 through a fixing sleeve 10 .

The upper cover 11 is provided with a water inlet 13 and an automatic exhaust valve 14, and the bottom of the barrel body 2 is welded with a sewage outlet 15.

A handle 29 is welded on the hanging plate 5 .

When the utility model is actually implemented, the liquid inlets of the filter bodies on both sides are lower than the upper end of the filter barrel. During the normal operation of the duplex filter, under the action of the pneumatic three-way valve, the liquid to be filtered enters a In the side filter body, the liquid enters the filter barrel from the barrel, and the sundries are left outside the filter barrel. The filtered liquid flows into the liquid outlet pipe through the liquid outlet pipe at the bottom of the filter barrel. During the process of filtering liquid The excess gas generated in the air is discharged from the automatic exhaust valve. When the filter body on one side needs to be cleaned after a period of time or the filter body is damaged, there is no need to stop the machine. The flow direction of the liquid can be changed to the other through the pneumatic three-way valve. One filter then works, unscrew the lifting ring of the non-working filter body located on the upper connecting plate, and the lifting ring takes the tension screw and rotates out of the concave hole centered on the bolts at the bottom of the lower connecting plate that pass through the fixing plates on both sides. trough, open the upper cover, and then directly rotate the filter barrel through the two corresponding handles on the hanging plate to separate the filter barrel from the liquid outlet pipe, and then take out the filter barrel for cleaning.

The utility model and its implementation have been described above. This description is not restrictive. What is shown in the drawings is only one implementation of the utility model, and the actual structure is not limited thereto. All in all, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the utility model, without creatively designing a structural method and embodiment similar to the technical solution, it shall be protected by the utility model scope.

Claims (6)

1. A duplex filter, comprising two identical filter bodies (1), the liquid inlets of the two filter bodies (1) are connected together, the liquid outlets are connected together, and the liquid inlets are connected to the pipeline Pneumatic three-way valves (3) are provided on the pipes connected to the liquid outlets, and the filter body (1) includes an upper cover (11), barrel body (2) and support feet (27) connected in sequence from top to bottom. ), characterized in that: the upper cover (11) and the barrel body (2) are provided with a connecting plate (26), and the upper and lower connecting plates (26) are provided with a quick disassembly device (12), The quick release device (12) includes a suspension ring (16), a tensioning screw (18), two fixing plates (19) and bolts (20), the upper part of the tensioning screw (18) is connected with the suspension ring (16), and the bottom It is connected between the two fixing plates (19) by bolts (20), the upper cover (11) and the barrel body (2) are tightly connected by a quick disassembly device (12), and the barrel body (2) is equipped with There is a filter barrel (4), the upper end of the filter barrel (4) is provided with a hanging plate (5), and the inner wall of the barrel body (2) is provided with a supporting plate (8) corresponding to the hanging plate (5). , the bottom of the filter bucket (4) is provided with a liquid outlet pipe (9), the bottom of the barrel body (2) is provided with a fixed sleeve (10) that matches the liquid outlet pipe (9), and the fixed sleeve (10 ) comprises a base (22) fixed on the bottom of the staving (2), a bushing (23) movably connected in the base (22) and a pressing block (24) connected to the outside of the base (22), the bushing ( 23) and the base (22) are provided with PTFE packing (25). 2. A duplex filter according to claim 1, characterized in that: the bushing (23) is an elastic bushing, and the end of the pressure block (24) located outside the base (22) is connected with a screw to The bases (22) are connected, and the bottom of one end of the pressing block (24) plugged into the base (22) is in contact with the tetrafluoro packing (25). 3. A duplex filter according to claim 1, characterized in that: a sealing ring (21) is provided between the upper and lower connecting plates (26), and the outer edges of the upper and lower connecting plates (26) There is a groove (28) corresponding to the tensioning screw (18), the tensioning screw (18) is located in the groove (28), between the lifting ring (16) and the upper connecting plate (26) A spacer (17) is provided, and the suspension ring (16) turns into or out of the groove (28) with the bolt (20) as the center of rotation with the tension screw (18). 4. A duplex filter according to claim 1, characterized in that: a gasket (6) is provided between the hanging plate (5) and the support plate (8), and the bottom of the support plate (8) Ribs (7) are evenly welded around the circle, and the filter barrel (4) is placed on the support plate (8) through the upper end circle hanging plate (5), and the upper end of the outlet pipe (9) is connected to the filter barrel ( 4) The bottoms are connected by threads, and the lower end of the outlet pipe (9) is fixed on the outside of the barrel body (2) through a fixing sleeve (10). 5. A duplex filter according to claim 1, characterized in that: the upper cover (11) is provided with a water inlet (13) and an automatic exhaust valve (14), and the barrel (2 ) bottom is welded with drain outlet (15). 6. A duplex filter according to claim 1, characterized in that: a handle (29) is welded on the hanging plate (5).