CN220205040U - Anti-abrasion protection device for slurry circulating pump inlet expansion joint - Google Patents
Anti-abrasion protection device for slurry circulating pump inlet expansion joint Download PDFInfo
- Publication number
- CN220205040U CN220205040U CN202321572557.3U CN202321572557U CN220205040U CN 220205040 U CN220205040 U CN 220205040U CN 202321572557 U CN202321572557 U CN 202321572557U CN 220205040 U CN220205040 U CN 220205040U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- flange
- sheath
- circulating pump
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 46
- 238000005299 abrasion Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 34
- 230000007423 decrease Effects 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011172 small scale experimental method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an anti-abrasion protection device for an inlet expansion joint of a slurry circulating pump, which comprises a cylindrical sheath arranged in the expansion joint, wherein a gap is reserved between the sheath and the inner wall of the expansion joint, two ends of the expansion joint are respectively provided with a first flange and a second flange, one end of the sheath is fixedly connected with the first flange, and the other end of the sheath is close to the second flange. The slurry flows through the suction pipe and the sheath in the expansion joint in turn from the pipeline and then enters the pump shell. Because the slurry does not wash the inner wall of the expansion joint any more, the abrasion of the expansion joint is reduced, and the service life of the expansion joint is prolonged. Because there is the clearance between sheath and the expansion joint inner wall, consequently can not influence the compensation effect of expansion joint, the vibration of thick liquid circulating pump during operation also can reduce through the expansion joint, can not influence the vibration absorbing effect of expansion joint.
Description
Technical Field
The utility model relates to a protective device for power plant equipment, in particular to an anti-wear protective device for an inlet expansion joint of a slurry circulating pump.
Background
In the desulfurization system of the power plant, a slurry circulating pump is adopted to convey media, an expansion joint is arranged at the inlet of the slurry circulating pump and is connected with a suction pipe through the expansion joint, and the suction pipe is connected with a pipeline for conveying slurry. The expansion joint can compensate the axial, transverse and angular deformation of the absorption pipeline, absorb the vibration of equipment and reduce the influence of the vibration on the pipeline when the slurry circulating pump operates.
The slurry sequentially passes through the suction pipe and the expansion joint and then enters the slurry circulating pump, and the expansion joint cannot be too thick for compensation due to the need of absorption, the appearance of the expansion joint is corrugated, and the slurry is corrosive and abrasive, so that the corrugated pipe is easy to damage due to abrasion and corrosion, and leakage is caused. Once the bellows leaks, the pump is stopped for replacement, so that normal production is affected, and the replacement of the expansion joint is time-consuming and labor-consuming.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an anti-abrasion protection device for an inlet expansion joint of a slurry circulating pump, which is used for solving the problem that the expansion joint is easy to damage and further influences normal production.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a slurry circulating pump entry expansion joint abrasionproof decreases protection device, includes the sheath of the cylinder of setting in the expansion joint, there is the clearance between the inner wall of sheath and expansion joint, the both ends of expansion joint are first flange and second flange respectively, sheath one end and first flange fixed connection, the other end of sheath is close to the second flange.
Further, a sealing sleeve is embedded on the inner wall of the expansion joint, the sealing sleeve is close to the second flange, and the outer wall of the sheath abuts against the inner wall of the sealing sleeve.
Further, the inner wall of the sealing sleeve matched with the sheath is corrugated.
Furthermore, the sealing sleeve is made of elastic materials.
Further, the first flange is far away from the pump shell of the slurry circulating pump, and the second flange is connected with the pump shell of the slurry circulating pump.
Further, the outer end of the sealing sleeve is turned outwards and covers the end face of the second flange.
Further, the outer end of the sheath is provided with a flange, and the flange is clamped between the first flange and a suction pipe of the paddle liquid circulating pump.
Further, both sides of the flange are lined with rubber layers.
The utility model has the positive effects that:
1. the utility model is provided with the sheath in the expansion joint, a gap is reserved between the sheath and the inner wall of the expansion joint, and when the slurry circulating pump works, slurry sequentially flows through the suction pipe and the sheath in the expansion joint from the pipeline and then enters the pump shell. Because the slurry does not wash the inner wall of the expansion joint any more, the abrasion of the expansion joint is reduced, and the service life of the expansion joint is prolonged. Because there is the clearance between sheath and the expansion joint inner wall, consequently can not influence the compensation effect of expansion joint, the vibration of thick liquid circulating pump during operation also can reduce through the expansion joint, can not influence the vibration absorbing effect of expansion joint. Meanwhile, the sheath is fixedly connected with the first flange of one end, far away from the slurry circulating pump, of the expansion joint, so that the vibration of the slurry circulating pump during working has little influence on the vibration of the sheath. In addition, the sheath shields the inside of the expansion joint, and when the slurry circulating pump stops running, the slurry can be reduced from being deposited in the concave position of the inside of the expansion joint.
2. The utility model is also provided with the corrugated sealing sleeve connected with the sheath, the sealing sleeve can assist in supporting the left end of the sheath, and meanwhile, a closed space is formed between the sheath and the inner wall of the expansion joint, so that the entry of slurry particles is avoided. Because the inner wall of the sealing sleeve is corrugated, the sealing sleeve is easier to deform when the sheath is inserted into the sealing sleeve, the sealing between the sheath and the expansion joint can be realized, and the movement of the sheath is not excessively blocked.
Drawings
FIG. 1 is a diagram of the use of the present utility model;
FIG. 2 is a view showing the use of the present utility model in example 2;
FIG. 3 is an enlarged view of a portion I of FIG. 2;
FIG. 4 is a schematic illustration of the connection of the present utility model to a bellows in examples 1 and 3;
in the figure:
1. a pump housing; 2. sealing sleeve; 3. an expansion joint; 4. a sheath; 5. a suction pipe; 6. and a rubber layer.
Detailed Description
Example 1
As shown in figures 1 and 4, the anti-abrasion protection device for the slurry circulating pump inlet expansion joint comprises a cylindrical sheath 4 arranged in an expansion joint 3, a gap is reserved between the sheath 4 and the inner wall of the expansion joint 3, two ends of the expansion joint 3 are respectively provided with a first flange and a second flange, the first flange is close to the right, and the second flange is close to the left. The right end of the sheath 4 is fixedly connected with the first flange, and the left end of the sheath 4 is close to the second flange.
The sheath 4 is made of wear-resistant stainless steel, has a material grade of 4.4529, has excellent wear resistance and corrosion resistance, and can effectively resist corrosion of chloride ions in slurry.
The right end of the sheath 4 is a circular flange which is clamped between the first flange and the suction pipe 5 of the paddle liquid circulating pump. Both sides of the flange are lined with rubber layers 6.
The rubber layer 6 is used for sealing between the sheath 4 and the expansion joint 3 and between the sheath 4 and the suction pipe 5, and no additional sealing gasket is needed.
When the slurry circulating pump works, the slurry flows through the suction pipe 5 and the sheath 4 in the expansion joint 3 in sequence from the pipeline and then enters the pump shell 1. Because the slurry does not wash the inner wall of the expansion joint 3, the abrasion of the expansion joint 3 is reduced, and the service life of the expansion joint 3 is prolonged.
Because there is the clearance between sheath 4 and the expansion joint 3 inner wall, consequently can not influence the compensation effect of expansion joint 3, the vibration of thick liquid circulating pump during operation also can reduce through expansion joint 3, can not influence the vibration absorbing effect of expansion joint 3.
Meanwhile, as the sheath 4 is fixedly connected with the first flange of the expansion joint 3, which is far away from one end of the slurry circulating pump, the vibration of the slurry circulating pump during working has little influence on the vibration of the sheath 4.
In addition, the sheath 4 shields the inside of the expansion joint 3, and when the slurry circulation pump stops running, the slurry can be reduced from being deposited in the concave part of the inside of the expansion joint 3.
Example 2
As shown in fig. 2 and 3, the present embodiment is different from embodiment 1 in that:
the sealing sleeve 2 made of rubber is embedded on the inner wall of the expansion joint 3, the sealing sleeve 2 is close to the second flange, the outer wall of the sheath 4 abuts against the inner wall of the sealing sleeve 2, and the inner wall of the sealing sleeve 2 matched with the sheath 4 is corrugated.
The sealing sleeve 2 can assist in supporting the left end of the sheath 4, and meanwhile, a closed space is formed between the sheath 4 and the inner wall of the expansion joint 3, so that slurry particles are prevented from entering.
Because the inner wall of the sealing sleeve 2 is corrugated, the sealing sleeve 2 is easier to deform when the sheath 4 is inserted into the sealing sleeve 2, the sealing between the sheath 4 and the expansion joint 3 can be realized, and excessive obstruction to the movement of the sheath 4 is avoided (the relative movement between the sheath 4 and the inner wall of the expansion joint 3 can be caused due to deformation when the expansion joint 3 compensates).
Example 3
As shown in fig. 4, this embodiment is different from embodiment 1 in that:
the outer end of the sealing sleeve 2 is turned outwards and covered on the end face of the second flange, so that a sealing gasket is formed, and no sealing gasket is needed to be additionally arranged.
In actual use, the jacket 4 and the sealing sleeve 2 may be mounted on the expansion joint 3 in advance, and then connected with the pump housing 1 and the suction pipe 5 as a whole, so as to improve the mounting efficiency.
The foregoing description of the embodiments of the present utility model has been presented only to illustrate the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the present utility model and to implement it, but not to limit the scope of the present utility model only by the present embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model disclosed herein, and it is intended for those skilled in the art to make local improvements in the system and changes, variations between subsystems, etc. within the scope of the present utility model without departing from the structure of the present utility model. At present, the technical scheme of the application has been subjected to pilot-scale experiments, namely small-scale experiments of products before large-scale mass production; after the pilot test is completed, the use investigation of the user is performed in a small range, and the investigation result shows that the user satisfaction is higher; now, the industrialization of the formal production of the product is prepared, including the early warning investigation of intellectual property risks.
Claims (8)
1. The utility model provides a slurry circulating pump entry expansion joint abrasionproof decreases protection device, its characterized in that, including setting up cylindrical sheath (4) in expansion joint (3), there is the clearance between the inner wall of sheath (4) and expansion joint (3), the both ends of expansion joint (3) are first flange and second flange respectively, sheath (4) one end and first flange fixed connection, the other end of sheath (4) is close to the second flange.
2. The anti-abrasion protection device for the slurry circulating pump inlet expansion joint according to claim 1, wherein the sealing sleeve (2) is embedded on the inner wall of the expansion joint (3), the sealing sleeve (2) is close to the second flange, and the outer wall of the sheath (4) abuts against the inner wall of the sealing sleeve (2).
3. The anti-wear protection device for the inlet expansion joint of the slurry circulating pump according to claim 2, wherein the inner wall of the sealing sleeve (2) matched with the sheath (4) is corrugated.
4. The anti-wear protection device for the inlet expansion joint of the slurry circulating pump according to claim 2, wherein the sealing sleeve (2) is made of elastic materials.
5. The anti-wear protection device for an inlet expansion joint of a slurry circulation pump according to claim 1, wherein the first flange is far away from a pump shell (1) of the slurry circulation pump, and the second flange is connected with the pump shell (1) of the slurry circulation pump.
6. The anti-wear protection device for the inlet expansion joint of the slurry circulating pump according to claim 2, wherein the outer end of the sealing sleeve (2) is turned outwards and covered on the end face of the second flange.
7. The anti-wear protection device for the inlet expansion joint of the slurry circulating pump according to claim 1, wherein the outer end of the sheath (4) is provided with a flange, and the flange is clamped between the first flange and a suction pipe (5) of the slurry circulating pump.
8. The protection device for preventing wear of an inlet expansion joint of a slurry circulation pump according to claim 7, wherein both sides of the flange are lined with rubber layers (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321572557.3U CN220205040U (en) | 2023-06-20 | 2023-06-20 | Anti-abrasion protection device for slurry circulating pump inlet expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321572557.3U CN220205040U (en) | 2023-06-20 | 2023-06-20 | Anti-abrasion protection device for slurry circulating pump inlet expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220205040U true CN220205040U (en) | 2023-12-19 |
Family
ID=89140954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321572557.3U Active CN220205040U (en) | 2023-06-20 | 2023-06-20 | Anti-abrasion protection device for slurry circulating pump inlet expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220205040U (en) |
-
2023
- 2023-06-20 CN CN202321572557.3U patent/CN220205040U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108331990B (en) | Axial compensation device for magnetic fluid seal | |
| CN220205040U (en) | Anti-abrasion protection device for slurry circulating pump inlet expansion joint | |
| CN2865933Y (en) | Water-cooling circulating rotary joint | |
| CN201180885Y (en) | Corrugated expansion regulator | |
| CN207598560U (en) | A kind of sea water desalination booster pump bearing assembly device | |
| CN106287093B (en) | Hydraulic turbine vibrationproof balance pipe | |
| CN214305852U (en) | Fluid erosion resistant rubber expansion joint | |
| CN108443617B (en) | Rotary joint device for liquid delivery | |
| CN208457404U (en) | Rotary joint equipment for liquid conveying | |
| CN107061914A (en) | A kind of bellows expansion joint | |
| CN221037022U (en) | Water chamber with good sealing effect | |
| CN219954582U (en) | Solar hot water tank connecting pipe structure | |
| CN208417931U (en) | A kind of bilayer pipe FlexbleJoint | |
| CN208123640U (en) | Waterproof wall bushing structure | |
| CN216520166U (en) | Water supply rotary joint for water cooling system in straightening machine straightening roll | |
| CN220365869U (en) | Bearing, oil return assembly and feed pump turbine system | |
| CN213871654U (en) | Anti-blocking expansion joint | |
| CN210291074U (en) | Bypass type balance sleeve compensator | |
| CN214743315U (en) | Leak-proof sealing structure at grinding roller door of vertical mill | |
| CN216813384U (en) | Anti-scouring corrosion jacketed pipe expansion joint | |
| CN214064195U (en) | Double-anti-abrasion double-sealing device for metal circular expansion joint | |
| CN217874816U (en) | Expansion joint protection device | |
| CN221121405U (en) | Anti-corrosion and wear-resistant bent pipe | |
| CN214889662U (en) | Three-dimensional spherical compensator with guiding device | |
| CN217382061U (en) | Noise reduction type concrete conveying pipe for concrete pump truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |