CN214714771U

CN214714771U - Disc type filter

Info

Publication number: CN214714771U
Application number: CN202120656063.8U
Authority: CN
Inventors: 朱云松
Original assignee: Yikai Shanghai Construction Machinery Manufacturing Co ltd
Current assignee: Yikai Shanghai Construction Machinery Manufacturing Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-16
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a disc type filter, which relates to the technical field of filters and is arranged on a reactor, the filter mainly comprises a disc group formed by combining a plurality of layers of filtering discs which are arranged equidistantly from top to bottom in sequence and a fixing part, a gasket is arranged between every two filtering discs, a top gland is arranged at the top of the disc group, a bottom mounting seat is arranged at the bottom of the disc group, and the fixing part penetrates through the top gland, the disc group and the bottom mounting seat to fix the top gland, the disc group and the bottom mounting seat to form a whole; the bottom mount is mounted vertically in the reactor and extends into an outlet line in the reactor. The utility model discloses have and set up the bottom mount pad through the bottom at the disc group, install whole filter on the reactor perpendicularly to the part stretches into the inside outlet line of reactor, improves whole filter bearing capacity, and has improved the installation stability of filter greatly, in order to avoid the parking accident because of the filter damages the cause, reduces the loss, reduce cost, and it is good to have the filter effect, the effect of high-usage.

Description

Disc type filter

Technical Field

The utility model relates to a filter technical field, more specifically say, it relates to a disc filter.

Background

With the upsizing of petrochemical equipment, the temperature in the reactor is as high as 350 ℃, the diameter of many hydrogenation reactors is more than 3 meters, even the inner diameter of some project reactors is more than 6 meters, the weight of the reactor bed layer reaches dozens of tons,

at present, most of reactors have various types of bottom collecting filters, but because all metal pipes or Johnson net type other structures are in a high-temperature state, the capacity of bearing pressure deformation is reduced by times, the conditions that a collecting pipe is easy to be flattened, deformed and even broken due to the pressure of a catalyst bed layer and the pressure difference of process media are difficult to solve the problems of safety and reliability, and great hidden danger and loss are caused to the safety production of the whole reactor.

In view of the above problems, it is desirable to provide a disc filter having improved stability.

SUMMERY OF THE UTILITY MODEL

To this problem in the practical application, the utility model aims to provide a disk filter, concrete scheme is as follows:

a disc type filter is arranged on a reactor, the filter mainly comprises a disc group formed by combining a plurality of layers of filter discs which are arranged in sequence from top to bottom at equal intervals and a fixing piece, a gasket is arranged between every two filter discs, a top gland is arranged at the top of the disc group, a bottom mounting seat is arranged at the bottom of the disc group, and the fixing piece penetrates through the top gland, the disc group and the bottom mounting seat to fix the top gland, the disc group and the bottom mounting seat to form a whole;

the bottom mount is vertically mounted to the reactor and extends into an outlet line in the reactor.

Furthermore, each layer of the filter discs are formed into a complete circle by a plurality of discs which are equidistantly combined in the circumferential direction;

each layer of the gasket is formed into a complete circular ring by combining a plurality of annular sheets at equal intervals in the circumferential direction.

Further, the mounting includes housing bolt and nut, housing bolt runs through top gland, disc group, bottom mount pad from last to down in proper order, and housing bolt both ends adopt the nut fixed, two the nut spot welding is fixed in on top gland and the bottom mount pad respectively.

Further, the number of discs on each layer of disc group is equal to the number of the compression bolts.

Furthermore, the bottom mounting seat is an integral forging, and the bottom mounting seat is mounted on a vessel flange of the reactor.

Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, the bottom mounting seat is arranged at the bottom of the disc group, the whole filter is vertically mounted on the reactor, and part of the filter extends into the outlet pipeline inside the reactor, so that the stress condition of the whole filter is good, the mounting stability of the filter is greatly improved, the parking accident caused by the damage of the filter is avoided, the loss is reduced, and the cost is reduced;

and the filtering discs formed by combining a plurality of equidistant discs are adopted to form a disc group, so that the filtering area can be effectively increased, the effective utilization rate of materials can be increased, and the practicability is high.

Drawings

Fig. 1 is an overall schematic view of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a sectional view taken along line a-a of fig. 1 according to the present invention.

Reference numerals: 1. a hold-down bolt; 2. a nut; 3. a top gland; 4. a filter disc; 5. a gasket; 6. a bottom mounting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1 to 3, a disc filter is installed on a reactor, and the filter mainly includes a disc set formed by combining a plurality of layers of filter discs 4 arranged in sequence from top to bottom at equal intervals.

Each layer of filter discs 4 is formed into a complete circle by a plurality of discs which are assembled at equal intervals around the circumferential direction. Preferably, the number of discs is set to 16-24. In the present invention, the number of the discs may be preferably 20. The total number of discs is equal to the number of discs per layer and the number of layers of filter discs 4. The thickness of each filter disc 4 is determined for different applications.

A gasket 5 is arranged between every two filter discs 4, each layer of gasket 5 is formed by combining a plurality of annular sheets at equal intervals around the circumferential direction to form a complete ring, and the middle of the gasket 5 is of a hollow structure. In order to save material, a complete annular filter disc 4 can preferably consist of 2 to 6 sheets. The thickness of the gasket 5 depends on the desired filter gap.

The effective filtering area of the filter is equal to the gap of the filter discs 4 minus the position blocked by the gasket 5.

The top of the disc group is provided with a top gland 3, and the bottom is provided with a bottom mounting seat 6. The top gland 3 and bottom mount 6 interact to secure the entire disc stack and washer 5.

The filter also comprises a fixing piece which penetrates through the top gland 3, the disc group and the bottom mounting seat 6 to fix the top gland, the disc group and the bottom mounting seat to form a whole.

The mounting includes clamp bolt 1 and nut 2, and clamp bolt 1 runs through top gland 3, disc group, bottom mount pad 6 from last to down in proper order, and 1 both ends of clamp bolt adopt nut 2 locking fixed, and two nuts 2 spot welding are fixed in on top gland 3 and the bottom mount pad 6 respectively. When the nut 2 is tightened, the entire disc filter becomes one piece.

The number of discs on each layer of disc group is equal to the number of the compression bolts 1. Namely correspondingly, the number of the compression bolts 1 is in the range of 16-24.

Additionally, the utility model provides a mounting also can adopt other structures, all adopt solitary clamp bolt 1 and nut 2 to fix between per two filter video disc 4 to in convenient to dismantle and change filter video disc 4 or packing ring 5, can not only guarantee the normal filtration collection effect of whole filter, can also reduce cost of maintenance.

In order to improve the stability of the whole filter, the bottom mounting seat 6 is vertically mounted on the vessel flange of the reactor and extends into the outlet pipeline (not shown in the figure) in the reactor. On the one hand, the scouring corrosion of the surface of the internal pipeline of the reactor can be prevented, and on the other hand, the whole filter can be stabilized in a vertical position.

And, bottom mount 6 is the integral forging. The whole bottom mounting seat 6 is of an inverted cone structure. Therefore, when the filter works, the part can bear the bending moment and the torque of the whole filter and various stresses caused by the pressure difference between the inside and the outside of the filter, the bearing pressure and the stability of the whole filter are greatly enhanced, and the filter is prevented from being flattened and damaged.

The utility model discloses a concrete implementation principle does: when the filter is installed, the catalyst is filled in the whole container, the catalyst is blocked outside the filter, and the part to be filtered flows through the filter through the gap between the filter disc 4 and the gasket 5, so that the filtering process is realized; the setting of bottom mount pad 6 and with the mounting means of reactor for the catalyst also can guarantee that whole filter does not bear rigid pressure differential after filling up all around the filter, whole filter atress situation is good, and installation stability is strong, has avoided losing efficacy because of the filter damages, and the parking accident that causes, because the reactor parking time is long, the loss is very big, consequently guarantees the effective normal work of filter, can significantly reduce the loss because of the parking accident brings, reduce manufacturing cost.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A disc type filter is arranged on a reactor and is characterized by mainly comprising a disc group formed by combining a plurality of layers of filtering discs (4) which are arranged from top to bottom at equal intervals in sequence and a fixing piece, wherein a gasket (5) is arranged between every two filtering discs (4), the top of the disc group is provided with a top gland (3), the bottom of the disc group is provided with a bottom mounting seat (6), and the fixing piece penetrates through the top gland (3), the disc group and the bottom mounting seat (6) to be fixed to form a whole;

the bottom mounting seat (6) is vertically mounted in the reactor and extends into an outlet pipeline in the reactor.

2. Disc filter according to claim 1, wherein each layer of filter discs (4) is formed by a plurality of discs assembled at equal intervals around the circumference to form a complete circle;

each layer of the gasket (5) is formed into a complete circular ring by combining a plurality of annular sheets at equal intervals around the circumferential direction.

3. The disc filter according to claim 2, wherein the fixing member comprises a compression bolt (1) and a nut (2), the compression bolt (1) sequentially penetrates through the top gland (3), the disc group and the bottom mounting seat (6) from top to bottom, two ends of the compression bolt (1) are fixed by the nut (2), and the two nuts (2) are respectively fixed on the top gland (3) and the bottom mounting seat (6) by spot welding.

4. A disc filter according to claim 3, wherein the number of discs in each layer of the disc pack is equal to the number of compression bolts (1).

5. Disc filter according to claim 1, wherein the bottom mounting seat (6) is a one-piece forging and the bottom mounting seat (6) is mounted on the vessel flange of the reactor.