CN218608335U

CN218608335U - Backwashing filter device

Info

Publication number: CN218608335U
Application number: CN202222583951.9U
Authority: CN
Inventors: 唐滨; 苏兵权; 周亮
Original assignee: AT&M Environmental Engineering Technology Co Ltd
Current assignee: AT&M Environmental Engineering Technology Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-03-14
Anticipated expiration: 2032-09-28

Abstract

The utility model relates to a filter equipment technical field discloses a back flush filter equipment, including many back flush filters, two switching valves, control system and pipeline. The backwashing filter device comprises a plurality of backwashing filters, a filter station, a control system, a switching valve, a control system and a servo control system, wherein the backwashing filters are arranged at the backwashing station, the rest backwashing filters are arranged at the filter station, and the servo control system is matched with the switching valve to automatically switch and keep the two switching valves to work synchronously.

Description

Backwashing filter device

Technical Field

The utility model relates to a filter equipment technical field especially relates to a back flush filter equipment.

Background

The multi-tank automatic backwashing filter device is mainly applied to filtering of raw oil after various hydrogenation devices such as diesel oil, gasoline, coal tar, kerosene, residual oil and the like, a catalytic cracking unit (FCC) external-throwing oil slurry filtering system and a high-viscosity and high-solid-content liquid-solid separation system. Therefore, it is necessary to provide a multi-tank automatic backwash filter device which is simple in operation, good in system stability, low in one-time investment and low in manual operation cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a back flush filter equipment can simplify operating system, improves operating system stability, reduces input cost and artifical maintenance cost.

In order to achieve the above object, the utility model provides a following technical scheme:

a backwashing filter device comprises a plurality of backwashing filters, two switching valves, a control system and a pipeline;

specifically, one end of the backwashing filter is connected with one of the switching valves through a pipeline, and the other end of the backwashing filter is connected with the other switching valve through a pipeline;

and the two switching valves are electrically connected with the control system.

Furthermore, the middle part of the switching valve is provided with an upper valve plate, a lower valve plate and a valve rod, and the upper valve plate, the lower valve plate and the valve rod are connected to form a double-valve-plate rotor of the switching valve.

Furthermore, a sealing element is arranged between the upper valve plate and the lower valve plate, the upper valve plate, the lower valve plate and the sealing element form a dynamic seal, the valve rod and the top connecting part of the shell of the switching valve form a dynamic seal, material leakage when the valve rod rotates is prevented, and the upper valve plate, the lower valve plate and the sealing element are symmetrically arranged, so that force balance and stable operation are facilitated.

Furthermore, the upper part of the upper valve plate and the lower part of the lower valve plate are both provided with a chamber.

Furthermore, a first inlet and a first outlet are formed in the cavity above the upper valve plate.

Furthermore, a second inlet and a second outlet are formed in the cavity below the lower valve plate.

Furthermore, a plurality of channels are vertically arranged between the upper valve plate and the lower valve plate, the middle parts of the channels are correspondingly connected with pipelines connected with the backwashing filter one by one, and the top ends and the bottom ends of the channels respectively form dynamic seals with the upper valve plate and the lower valve plate through sealing elements.

Furthermore, a through hole is formed in the position, corresponding to one of the channels, of the lower valve plate, and through holes are formed in the positions, corresponding to the other channels, of the upper valve plate.

Furthermore, a metal filter element is arranged in the backwashing filter, and materials to be filtered flow to the inside of the metal filter element from the outside of the metal filter element.

Furthermore, the diameter of the metal filter element is 50-60 mm.

Furthermore, the metal filter element is an asymmetric metal sintered filter element which has the performance characteristic of high strength and is suitable for cleaning the filter element by a back washing or back blowing method, and meanwhile, the asymmetric metal sintered filter element has good filtering performance and strong corrosion resistance.

The utility model discloses a technological effect and advantage:

the utility model discloses a set up many back flush filters, a back flush filter is in the backwash station, the remaining back flush filter is in filtering station, cooperation control diverter valve automatic switch-over keeps the synchronous servo control system of two switching valve work, make back flush filter equipment can switch according to pressure differential and time dual mode, when the system reaches pressure differential or arrives after the appointed time, control system sends the instruction to the diverter valve, make it rotate a station, automatically switch one of the back flush filter of filtering station to the backwash station, carry out the backwash to it, and the back flush filter of backwash station switches to filtering station, when the diverter valve switches back flush filter to backwash station, the back flush filter of backwash station is pressurized to the back flush filter of backwash station to the blowback gas mouth of top diverter valve, when pressure reaches the appointed value, open the valve of the drain of lower extreme diverter valve, carry out blasting backwash to the filter, thereby improve backwash efficiency; the asymmetric metal sintered filter element is arranged in the backwashing filter, has the characteristic of high strength, is suitable for cleaning the filter element by a backwashing or back flushing method, and has good filtering performance and strong corrosion resistance.

Constitute the effectual risk that has alleviateed inside cluster material of dynamic seal through last valve plate, lower valve plate and sealing member, the top junction of valve rod and diverter valve adopts the dynamic seal to prevent to leak. The double valve plates and the sealing elements are symmetrically arranged, so that force balance and stable operation are facilitated.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

FIG. 1 is a schematic view of the overall structure of a backwash filter device according to the present invention;

FIG. 2 is a top view of a backwash filter device according to the present invention;

FIG. 3 is a schematic structural view of a switching valve of a backwash filter device according to the present invention;

FIG. 4 is a front view of a switching valve of a backwash filter device according to the present invention;

fig. 5 is a top view of a switching valve of a backwash filter device according to the present invention;

fig. 6 is a schematic structural view of a sealing member of a switching valve of a backwash filter device according to the present invention;

fig. 7 is a schematic structural view of a backwashing filter of the backwashing filter device of the present invention;

reference numerals are as follows: 1. backwashing the filter; 11. a metal filter element; 2. a switching valve; 21. an upper valve plate; 22. a lower valve plate; 23. a valve stem; 24. a seal member; 3. a control system; 4. a pipeline; 5. a channel; 6. a first inlet/outlet; 7. a second port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is the utility model relates to a backwash filter's overall structure schematic diagram, as shown in fig. 1, for solving the not enough of prior art, the utility model discloses a backwash filter, including many backwash filter 1, two switching valves 2, control system 3 and pipeline 4.

Further, fig. 2 is the utility model relates to a back flush filter equipment's top view, as shown in fig. 2, back flush filter 1's one end is passed through pipeline 4 and is connected a switching valve 2, and back flush filter 1's the other end passes through pipeline 4 and connects another switching valve 2, two switching valve 2 equal electric connection control system 3, and control system 3 carries out automatic switch for control diverter valve 2 to keep the synchronous servo control system of two switching valve 2 work.

Further, fig. 3 is the utility model relates to a backwash filter device's diverter valve 2's structural schematic diagram, as shown in fig. 3, diverter valve 2's middle part is equipped with valve plate 21, the double-valve-plate rotor that forms is connected to lower valve plate 22 and valve rod 23, be equipped with sealing member 24 between upper valve plate 21 and the lower valve plate 22, valve rod 23 and diverter valve 2's top junction constitutes the movive seal through the sealing washer, the material leaks when preventing valve rod 23 to rotate, upper valve plate 21, lower valve plate 22 and sealing member 24 symmetrical arrangement, be favorable to the power balance and the stable operation.

Further, chambers are provided above the upper valve plate 21 and below the lower valve plate 22.

Further, fig. 4 is the utility model relates to a backwash filter device's diverter valve 2's front view, fig. 5 is the utility model relates to a backwash filter device's diverter valve 2's top view, as shown in fig. 4, fig. 5, the cavity of the top of going up valve plate 21 is equipped with first import and export 6, and the cavity of the below of lower valve plate 22 is equipped with the second and imports and exports 7, and the first import and export 6 and the second import and export 7 that are located backwash filter 1 top diverter valve 2 are for straining clear liquid export and anti-blow mouth respectively, and the first import and export 6 and the second import and export 7 that are located backwash filter 1 below diverter valve 2 are for raw materials entry and drain respectively.

Further, a plurality of channels 5 are vertically arranged between the upper valve plate 21 and the lower valve plate 22, the channels 5 correspond to the pipelines 4 connected with the backwashing filter 1 one by one, the sealing element 24 attached to the upper valve plate 21 is connected with the sealing element 24 attached to the lower valve plate 22 through the channels 5, fig. 6 is a front view of the sealing element 24 of the switching valve 2 of the backwashing filter device, as shown in fig. 6, the sealing element 24 is sleeved on the surface of the channel 5, one end of the sealing element 24 is fixedly connected with one end of a spring, the position of the surface of the channel 5 corresponding to the other end of the spring is fixedly connected with a limiting ring, the spring is sleeved on the surface of the channel 5, and the channel 5, the upper valve plate 21 and the lower valve plate 22 form dynamic seal through the sealing element 24, so that the risk of material mixing inside the switching valve 2 is effectively reduced.

Furthermore, a through hole is formed in the position, corresponding to one of the channels 5, of the lower valve plate 22, through holes are formed in the positions, corresponding to the other channels 5, of the upper valve plate 21, and when the valve works normally, the backwash filter 1 communicated with the through holes in the lower valve plate 22 is located at a backwash station, the rest backwash filter 1 is located at a filtering station, the switching valve 2 is controlled by the control system 3 to switch the backwash filter 1, one backwash filter 1 in the filtering station is switched to the backwash station and cleaned, and meanwhile, the backwash filter 1 in the backwash station is switched for use.

Further, fig. 7 is a structural diagram of a backwash filter 1 of the backwash filter device of the present invention, as shown in fig. 7, a metal filter element 11 is installed in the backwash filter 1, and the material to be filtered flows from the outside of the metal filter element 11 to the inside of the metal filter element 11.

Further, the diameter of the metal filter element 11 is 50 to 60mm, for example, 50mm or 60mm, and the filtration efficiency of the metal filter element 11 for a specified particle size reaches 99.9% or more.

Furthermore, the metal filter element 11 is an asymmetric metal sintered filter element, which has the characteristic of high strength and is suitable for cleaning the filter element by a back washing or back blowing method, and meanwhile, the asymmetric metal sintered filter element has good filtering performance and strong corrosion resistance.

In the actual filtering process, materials flow from bottom to top, the materials to be filtered are introduced from the outside, the materials enter a chamber above an upper valve plate 21 from a raw material inlet, enter a backwashing filter 1 positioned at a filtering station from a through hole of the upper valve plate 21, the materials are filtered, the materials penetrate through a metal filter core 11 from the outside to the inside, mechanical impurities in the materials are intercepted on the outer surface of the metal filter core 11, the filtered clean materials enter a chamber above an upper valve plate 21 of a switching valve 2 above the backwashing filter 1 through a pipeline above the backwashing filter 1, finally the materials flow out of a device from a clear filtrate outlet, when the filtering duration reaches a set value, a control system 3 controls the switching valve 2 to switch the backwashing filter 1, one of the backwashing filters 1 at the filtering station is switched to a backwashing station, liquid in the backwashing filter 1 is discharged through a drain outlet, the backwashing filter 1 is firstly subjected to emptying treatment, the pressure in the backwashing filter 1 is discharged, then the backwashing filter 1 at the backwashing station is pressurized by using nitrogen, when the pressure reaches a specified value, the backwashing valve at the backwashing drain outlet is opened, the backwashing filter 1 enters a standby sewage discharge station, and is soaked in a certain time when the backwashing station, the backwashing filter 1 is soaked in the backwashing station, and the standby sewage discharge station, the backwashing filter 1, the backwashing liquid is soaked in the standby sewage discharge station, and the standby sewage discharge station.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims

1. A backwashing filter device is characterized by comprising a plurality of backwashing filters (1), two switching valves (2), a control system (3) and a pipeline (4);

one end of the backwashing filter (1) is connected with one of the switching valves (2) through a pipeline (4), and the other end of the backwashing filter (1) is connected with the other switching valve (2) through a pipeline (4);

the two switching valves (2) are electrically connected with the control system (3).

2. The backflush filter device of claim 1,

the middle part of the switching valve (2) is provided with an upper valve plate (21), a lower valve plate (22) and a valve rod (23), and the upper valve plate (21), the lower valve plate (22) and the valve rod (23) are connected to form a double-valve-plate rotor of the switching valve (2).

3. The backflush filter device according to claim 2,

and a sealing element (24) is arranged between the upper valve plate (21) and the lower valve plate (22), the upper valve plate (21), the lower valve plate (22) and the sealing element (24) form a dynamic seal, and the valve rod (23) and the top connection part of the shell of the switching valve (2) form a dynamic seal.

4. The backflush filter device according to claim 2 or 3,

and chambers are arranged above the upper valve plate (21) and below the lower valve plate (22).

5. The backflush filter device according to claim 4,

and a first inlet and outlet (6) is formed in a cavity above the upper valve plate (21).

6. The backflush filter device of claim 4,

and a chamber below the lower valve plate (22) is provided with a second inlet and outlet (7).

7. The backflush filter device according to claim 2 or 3,

a plurality of channels (5) are vertically arranged between the upper valve plate (21) and the lower valve plate (22), the middle parts of the channels (5) are connected with pipelines (4) connected with the backwashing filter (1) in a one-to-one correspondence manner, and the top end and the bottom end of each channel (5) respectively form dynamic seals with the upper valve plate (21) and the lower valve plate (22) through sealing elements (24).

8. The backflush filter apparatus according to claim 7,

a through hole is formed in the position, corresponding to one channel (5), of the lower valve plate (22), and through holes are formed in the positions, corresponding to other channels (5), of the upper valve plate (21).

9. The backflush filter device according to claim 1,

a metal filter element (11) is installed in the backwashing filter (1), and materials to be filtered flow into the metal filter element (11) from the outside of the metal filter element (11).

10. The backflush filter apparatus according to claim 9,

the diameter of the metal filter element (11) is 50-60 mm.

11. The backflush filter device according to claim 9 or 10,

the metal filter element (11) is an asymmetric metal sintered filter element.