CN216843600U - Buffering bucket capable of effectively retarding erosion - Google Patents

Abstract

The utility model discloses a buffer tank that effectively slows down erosion, be responsible for including the tee bend, first guide plate, be responsible for and the branch pipe, the one end welding that the tee bend was responsible for has first flange of being responsible for, the other end welding that the tee bend was responsible for has first middle flange, branch connection sets up the one side lateral wall that is responsible for at the tee bend, branch pipe and branch pipe flange welding, the one end welding of being responsible for has the second middle flange, flange bolted connection in the middle of first middle flange and second, first guide plate is pressed from both sides tightly and is set up between first middle flange and second middle flange, a plurality of water conservancy diversion holes have been seted up on the first guide plate, the other end welding of being responsible for has the second to be responsible for the flange, the second is responsible for flange and flange lid bolted connection, the flange is covered and is provided with anti erosion layer. The utility model discloses can optimize the mobile form of the interior fluid of buffering bucket, slow down the erosion to the buffering bucket, improve the life of blind flange, solve the problem that buffering bucket life is short among black water, the grey water processing system, improve the continuous safe operating duration of system.

Description

Buffering bucket capable of effectively retarding erosion

Technical Field

The utility model relates to a slow down device specifically is a buffering bucket that effectively slows down erosion.

Background

In recent years, the coal chemical industry in China is rapidly developed, and the coal gasification process is widely applied to projects of oil preparation from coal, hydrogen preparation from coal, methanol preparation from coal, olefin preparation from coal, synthetic ammonia preparation from coal and the like.

Taking pulverized coal gasification as an example, the main process flow is as follows: the mixture of the pulverized coal, the oxygen and the steam is sprayed into a reaction chamber of the gasification furnace by a pulverized coal burner to carry out gasification reaction to generate crude synthesis gas. The raw synthesis gas leaves the chilling chamber of the gasification furnace and enters a mixer, after the raw synthesis gas is mixed with clear water from a hot water chamber of an evaporation hot water tower in the mixer, a water/raw synthesis gas mixture enters a cyclone separator for gas/water separation, most of fine ash in the synthesis gas enters a liquid phase, and the fine ash is continuously discharged into a black water and grey water treatment system from the bottom of the cyclone separator. The black water and grey water treatment system is one of the important systems of the coal gasification device, the system runs under the severe working conditions of high temperature, high pressure difference, liquid-solid scouring and the like for a long time, and the medium is easy to flash in the decompression process, so that the system has double risks of erosion abrasion and cavitation failure. From the operation condition of the built coal gasification device, the buffer barrel at the rear side of the angle valve in the black water and grey water treatment system is seriously eroded, and local thinning and perforation leakage often occur, so that the production plan, the cost and the benefit of an enterprise are influenced, the safety production is seriously threatened, and the buffer barrel becomes an important obstacle for restricting the long-period stable operation of the coal gasification device.

At present, an angle valve in a black water and grey water treatment system is directly connected with an enlarged three-way buffer barrel, the bottom of the buffer barrel is connected with a flange cover, and a branch pipe is connected with equipment. After the device operates, the flange cover at the bottom of the buffer barrel, the branch pipe and the intersection line of the tee main pipe are quickly worn through to cause leakage, and the buffer barrel needs to be maintained on line in time or is integrally replaced. The following problems thus arise: 1) high-temperature and high-pressure black water and grey water leakage seriously threaten the safety production of enterprises; 2) the black water and the grey water flow out of the pipeline to cause environmental pollution; 3) the buffer barrel is frequently stopped and integrally replaced, so that the requirement of long-period stable operation of the coal gasification device cannot be met; 4) the buffer barrel has short service life, and the buffer barrel is maintained or replaced, so that the operation cost of the device is greatly increased.

Disclosure of Invention

The utility model aims to solve the technical problem that, to prior art not enough, provide a buffer bucket that effectively slows down erosion, can solve the problem that buffer bucket life is short among black water, the grey water processing system, improve the continuous safe operating duration of system.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a buffer barrel for effectively slowing down erosion, which comprises a three-way main pipe, a first guide plate, a main pipe and branch pipes, one end of the three-way main pipe is welded with a first main pipe flange, the other end of the three-way main pipe is welded with a first middle flange, the branch pipe is connected and arranged on the side wall of one side of the main pipe of the tee joint, the branch pipe is welded with a flange of the branch pipe, one end of the main pipe is welded with a second middle flange, the first middle flange is connected with the second middle flange through bolts, the first guide plate is clamped between the first intermediate flange and the second intermediate flange, the first guide plate is provided with a plurality of guide holes, the other end of the main pipe is welded with a second main pipe flange, the second main pipe flange is connected with a flange cover through bolts, and an anti-erosion layer is arranged on the flange cover.

The utility model discloses a design first guide plate and optimize the mobile form of the interior fluid of buffering bucket to slow down the erosion to buffering bucket, and first guide plate has the effect of water conservancy diversion, and has the effect that reduces solid phase particle velocity of flow in the fluid, simultaneously, the utility model discloses anti erosion layer that sets up in the inboard of blind flange has shock resistance, can effectively solve in the fluid solid phase particle to the erosion problem of blind flange, improves the life of blind flange, in addition, flange bolt connected mode in the middle of first intermediate flange and the second makes things convenient for the change of first guide plate and tee bend person in charge and the assembly of relevant part. The utility model provides a short problem of buffer tank life among black water, grey water processing system, improved the continuous safe operating duration of system.

Preferably, the erosion-resistant layer is a hard alloy layer or a wear-resistant ceramic layer. The hard alloy layer can be arranged in a mode of surfacing hard alloy, and the wear-resistant ceramic layer can be arranged in a nested wear-resistant ceramic mode. In practical applications, an erosion resistant layer of other material may also be used.

Preferably, the plurality of guide holes include a plurality of first guide holes and a plurality of second guide holes, the first guide holes have the same diameter and are uniformly distributed on a semicircle far away from the branch pipe, the second guide holes are distributed on a semicircle close to the branch pipe, the second guide holes are arranged in multiple rows, the second guide holes in the same row of second guide holes have the same diameter, and the diameter of the second guide holes in each row of second guide holes gradually decreases from the central axis of the first guide plate to the edge of the first guide plate on the side close to the branch pipe. Further, the opening areas of the first diversion holes and the second diversion holes are respectively approximately equal to the cross-sectional area of the branch pipe. Above-mentioned first water conservancy diversion hole and second water conservancy diversion hole are favorable to the solid phase granule to keep away from the second intermediate flange, be responsible for, the second is responsible for the inside wall of flange and blind flange when playing the water conservancy diversion effect to reach better shock resistance effect, ensure the life of buffer tank.

Preferably, the included angle between the central line of the branch pipe and the central line of the tee main pipe is 45 degrees, and the branch pipe inclines to the outer side of the end, welded with the first main pipe flange, of the tee main pipe. The design of the branch pipe is beneficial to further optimizing the fluid flow field in the buffer barrel and reducing the erosion of the fluid to the intersection line of the branch pipe and the tee main pipe.

Preferably, a baffle is arranged in the main tee pipe, the baffle covers the front side of the intersecting line of the branch pipe and the main tee pipe, one end of the baffle is welded with the inner side wall of the main tee pipe and is close to the branch pipe, the other end of the baffle is close to the central axis of the first guide plate, and a plurality of third guide holes are formed in the baffle. Furthermore, the third diversion holes are all rectangular square holes, and the opening area of the third diversion holes is approximately equal to the cross-sectional area of the branch pipe. The baffle plate also has the functions of guiding flow and slowing down the flow velocity of fluid, and is favorable for achieving a better erosion slowing effect.

Preferably, a second guide plate is arranged in the main pipe, one end of the second guide plate is welded with the central axis of the first guide plate, and the other end of the second guide plate is close to the central axis of the anti-erosion layer. Furthermore, a plurality of fourth diversion holes are formed in the second diversion plate. Furthermore, the plurality of fourth diversion holes are all circular, and are uniformly distributed on the second diversion plate. The second guide plate has a flow guide effect, and erosion of the flange cover can be further reduced.

Compared with the prior art, the utility model has the advantages of as follows:

(1) the utility model optimizes the flowing form of the fluid in the buffer barrel by designing the first guide plate to slow down the erosion of the buffer barrel, and the first guide plate has the function of guiding the flow and the function of reducing the flow velocity of solid-phase particles in the fluid;

(2) the utility model discloses the anti-erosion layer that sets up in the inboard of blind flange has shock resistance, can effectively solve the solid phase granule in the fluid and erode the problem of blind flange, improves blind flange's life;

(3) the first intermediate flange and the second intermediate flange are in a bolt connection mode, so that the first guide plate and the tee main pipe can be conveniently replaced and related components can be conveniently assembled;

(4) the utility model discloses a to the comprehensive optimization in the fluid flow field in the buffering bucket, solved the problem that buffering bucket life is short among black water, the grey water processing system, improved the continuous safe operating duration of system.

Drawings

FIG. 1 is a front view of a buffer bucket in example 1;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a front view of a buffer tank in embodiment 2;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 4;

FIG. 7 is a cross-sectional view E-E of FIG. 4;

FIG. 8 is a front view of a buffer bucket in embodiment 3;

FIG. 9 is a cross-sectional view F-F of FIG. 8;

FIG. 10 is a sectional view taken along line G-G of FIG. 8;

FIG. 11 is a sectional view taken along line H-H of FIG. 8;

fig. 12 is a sectional view taken along line I-I in fig. 8.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The buffer barrel for effectively reducing erosion in embodiment 1 is shown in fig. 1 to 3, and includes a three-way main pipe 1, a first guide plate 2, a main pipe 3 and a branch pipe 4, wherein a first main pipe flange 11 is welded at one end of the three-way main pipe 1, a first intermediate flange 12 is welded at the other end of the three-way main pipe 1, the branch pipe 4 is connected and arranged on one side wall of the three-way main pipe 1, the branch pipe 4 is welded with a branch pipe flange 41, a second intermediate flange 31 is welded at one end of the main pipe 3, the first intermediate flange 12 is in bolted connection with the second intermediate flange 31, the first guide plate 2 is clamped and arranged between the first intermediate flange 12 and the second intermediate flange 31, a plurality of guide holes are formed in the first guide plate 2, a second main pipe flange 32 is welded at the other end of the main pipe 3, the second main pipe flange 32 is in bolted connection with a flange cover 5, and a hard alloy layer 51 is welded on the flange cover 5; the plurality of flow guide holes comprise a plurality of first circular flow guide holes 21 and a plurality of second circular flow guide holes 22, the apertures of the first flow guide holes 21 are the same and are uniformly distributed on a semicircle far away from the branch pipe 4, the second flow guide holes 22 are distributed on a semicircle close to the branch pipe 4, the second flow guide holes 22 are arranged in a plurality of rows, the apertures of the second flow guide holes 22 in the same row of second flow guide holes 22 are the same, the edge of one side, close to the branch pipe 4, of the first flow guide plate 2 from the central axis of the first flow guide plate 2 is gradually reduced, the aperture areas of the second flow guide holes 22 in each row of second flow guide holes 22 are respectively equal to the cross-sectional area of the branch pipe 4.

The buffer barrel for effectively slowing down erosion in the embodiment 2 is different from the buffer barrel in the embodiment 1 in that in the embodiment 2, as shown in fig. 4 to 7, an included angle between a center line of a branch pipe 4 and a center line of a tee main pipe 1 is 45 degrees, and the branch pipe 4 is inclined to the outer side of one end, welded with a first main pipe flange 11, of the tee main pipe 1; the wear-resistant ceramic layer 52 is nested on the flange cover 5; be provided with baffle 6 in the tee bend is responsible for 1, baffle 6 covers the front side of establishing the intersection line of being responsible for 1 at branch pipe 4 and tee bend, the one end of baffle 6 is responsible for 1 inside wall welding and is close to branch pipe 4 with the tee bend, the other end of baffle 6 is close to the central axis of first guide plate 2, a plurality of third water conservancy diversion holes 61 have been seted up on the baffle 6, a plurality of third water conservancy diversion holes 61 are rectangular shape square hole, the trompil area of a plurality of third water conservancy diversion holes 61 is approximately equal to the cross-sectional area of branch pipe 4.

The buffer barrel for effectively reducing erosion in embodiment 3 is different from that in embodiment 2 in that in embodiment 3, as shown in fig. 8 to 12, a hard alloy layer 51 is deposited on the flange cover 5; be equipped with second guide plate 7 in being responsible for 3, the one end of second guide plate 7 and the center axis welding of first guide plate 2, the other end of second guide plate 7 is close to stereoplasm alloy layer 51's the center axis, has seted up a plurality of fourth water conservancy diversion holes 71 on the second guide plate 7, and a plurality of fourth water conservancy diversion holes 71 are circular, and a plurality of fourth water conservancy diversion holes 71 evenly lay on second guide plate 7.

Above-mentioned buffering bucket optimizes the fluidic form that flows in the buffering bucket through designing first guide plate 2, in order to slow down the erosion to the buffering bucket, and first guide plate 2 has the effect of water conservancy diversion, and have the effect that reduces solid phase particle velocity of flow in the fluid, simultaneously, the anti erosion layer that sets up in the inboard of blind flange 5 has shock resistance, can effectively solve the solid phase particle in the fluid and erode the problem of blind flange 5, improve the life of blind flange 5, in addition, flange 31 bolted connection mode in the middle of first middle flange 12 and the second, make things convenient for the change of first guide plate 2 and tee bend person in charge 1 and the assembly of relevant part.

Claims (10)

1. A buffer barrel for effectively slowing down erosion is characterized by comprising a three-way main pipe, a first guide plate, a main pipe and branch pipes, one end of the main tee pipe is welded with a first main pipe flange, the other end of the main tee pipe is welded with a first middle flange, the branch pipe is connected and arranged on the side wall of one side of the main pipe of the tee joint, the branch pipe is welded with a flange of the branch pipe, one end of the main pipe is welded with a second middle flange, the first middle flange is connected with the second middle flange through bolts, the first guide plate is clamped between the first middle flange and the second middle flange, the first guide plate is provided with a plurality of guide holes, the other end of the main pipe is welded with a second main pipe flange, the second main pipe flange is connected with a flange cover through bolts, and an anti-erosion layer is arranged on the flange cover.

2. The barrel of claim 1 wherein the erosion resistant layer is a hard alloy layer or a wear resistant ceramic layer.

3. The buffer tank for effectively retarding erosion according to claim 1, wherein the plurality of guiding holes include a plurality of first circular guiding holes and a plurality of second circular guiding holes, the plurality of first guiding holes have the same diameter and are uniformly distributed on a semicircle away from the branch pipe, the plurality of second guiding holes are distributed on a semicircle close to the branch pipe, the plurality of second guiding holes are arranged in multiple rows, the diameter of the second guiding holes in the same row of second guiding holes is the same, and the diameter of the second guiding holes in each row of second guiding holes decreases gradually from the central axis of the first guiding plate to the edge of the first guiding plate on the side close to the branch pipe.

4. The barrel of claim 3 wherein the first plurality of apertures and the second plurality of apertures each have an open area approximately equal to the cross-sectional area of the branch pipe.

5. The buffer barrel for effectively relieving erosion of claim 1, wherein an included angle between a center line of the branch pipe and a center line of the main tee pipe is 45 degrees, and the branch pipe is inclined to the outer side of one end of the main tee pipe, which is welded with the flange of the first main pipe.

6. The buffer barrel for effectively relieving erosion according to any one of claims 1 to 5, wherein a baffle is arranged in the main tee pipe, the baffle covers the front side of the intersection line of the branch pipe and the main tee pipe, one end of the baffle is welded with the inner side wall of the main tee pipe and is close to the branch pipe, the other end of the baffle is close to the central axis of the first guide plate, and a plurality of third guide holes are formed in the baffle.

7. The surge tank of claim 6, wherein the third diversion holes are rectangular holes, and the area of the third diversion holes is approximately equal to the cross-sectional area of the branch pipe.

8. The buffering barrel for effectively reducing erosion according to claim 1, wherein a second deflector is arranged in the main pipe, one end of the second deflector is welded with the central axis of the first deflector, and the other end of the second deflector is close to the central axis of the erosion resistant layer.

9. The barrel of claim 8, wherein the second baffle plate has a plurality of fourth baffle holes.

10. The barrel of claim 9, wherein the fourth holes are circular and are evenly distributed on the second baffle.

Images