CN220337119U - Anti-drop wear-resisting corrosion-resisting carborundum ceramic pump - Google Patents
Anti-drop wear-resisting corrosion-resisting carborundum ceramic pump Download PDFInfo
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- CN220337119U CN220337119U CN202320919889.8U CN202320919889U CN220337119U CN 220337119 U CN220337119 U CN 220337119U CN 202320919889 U CN202320919889 U CN 202320919889U CN 220337119 U CN220337119 U CN 220337119U
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- Prior art keywords
- silicon carbide
- pump
- carbide ceramic
- ceramic material
- resistant
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- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 128
- 239000000919 ceramic Substances 0.000 title claims abstract description 42
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 131
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 52
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 230000007797 corrosion Effects 0.000 claims abstract description 20
- 238000005260 corrosion Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 229910052814 silicon oxide Chemical group 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 238000005336 cracking Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical group N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an anti-falling, wear-resistant and corrosion-resistant silicon carbide ceramic pump, wherein a pump body silicon carbide ceramic material, an impeller silicon carbide ceramic material and a pump cover silicon carbide ceramic material adopt any one of reaction sintering silicon carbide and self-propagating high-temperature synthetic silicon carbide; the pump body coating and the pump cover coating adopt any one of reaction bonding silicon carbide or oxide bonding silicon carbide. According to the embodiment of the application, the reaction sintering silicon carbide or the self-propagating high-temperature synthetic silicon carbide is adopted as the silicon carbide ceramic material, so that the technical problems that the silicon carbide ceramic material in the prior art is low in fracture toughness, brittle fracture is easy to occur, and the reliability and safety of a silicon carbide ceramic pump are affected are effectively solved, the performances of corrosion resistance, high temperature resistance and the like of the silicon carbide ceramic pump are improved, the service life is prolonged, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to the technical field of pumps, in particular to an anti-falling, wear-resistant and corrosion-resistant silicon carbide ceramic pump.
Background
The silicon carbide ceramic pump is a pump using silicon carbide (SiC) material as an overflow piece, has the advantages of wear resistance, corrosion resistance, high temperature resistance and the like, and is suitable for conveying highly corrosive and highly abrasive media in industries such as mines, metallurgy, electric power, chemical industry and the like. Silicon carbide ceramic pumps are of two types, one being silicon nitride bonded silicon carbide sintered ceramics and the other being resin bonded silicon carbide composite ceramics.
The working principle of the silicon carbide ceramic pump is that the characteristics of high hardness, high wear resistance, high corrosion resistance and the like of a silicon carbide material are utilized to manufacture the overcurrent elements (such as impellers, jackets, shaft sleeves and the like) of the pump into silicon carbide ceramic, so that the service life and the efficiency of the pump are improved. The structure and the working mode of the silicon carbide ceramic pump are the same as those of a common slurry pump, and the materials are different. The slurry pump is a centrifugal pump that generates centrifugal force on fluid by an impeller and delivers the fluid from a suction port to a discharge port.
However, in the process of implementing the technical scheme of the utility model in the embodiment of the application, the inventor of the application finds that at least the following technical problems exist in the above technology:
the silicon carbide ceramic material in the prior art has low fracture toughness, is easy to generate brittle fracture, and affects the reliability and safety of the silicon carbide ceramic pump.
The connection technology between the silicon carbide ceramic material and the metal or other materials is not mature, and interfacial delamination, cracking and other phenomena are easy to occur, so that the service life of the silicon carbide ceramic pump is influenced.
Disclosure of Invention
According to the embodiment of the application, the silicon carbide ceramic pump is anti-falling, wear-resistant and corrosion-resistant, and the technical problems that in the prior art, the fracture toughness of a silicon carbide ceramic material is low, brittle fracture is easy to occur, and the reliability and safety of the silicon carbide ceramic pump are affected are solved.
The embodiment of the application provides a silicon carbide ceramic pump of anti-drop wear-resisting corrosion-resistant, includes:
the pump body is characterized in that a pump body silicon carbide ceramic material is arranged on the inner surface of the pump body, and a pump body coating is arranged on the outer surface of the pump body silicon carbide ceramic material; the impeller is provided with an impeller silicon carbide ceramic material on the outer surface; the pump cover is characterized in that a pump cover silicon carbide ceramic material is arranged on the inner surface of the pump cover, and a pump cover coating is arranged on the outer surface of the pump cover silicon carbide ceramic material; the pump body silicon carbide ceramic material, the impeller silicon carbide ceramic material and the pump cover silicon carbide ceramic material adopt any one of reaction sintering silicon carbide and self-propagating high-temperature synthesis silicon carbide; the pump body coating and the pump cover coating adopt any one of reaction bonding silicon carbide or oxide bonding silicon carbide; the contraction section and the flat bottom structure are in arc transition.
Furthermore, the center of the pump cover silicon carbide ceramic material is contracted inwards to form an open flat bottom structure.
Further, the impeller is fixed at the left end of the pump shaft through an impeller gland; the right end of the pump body is connected with a connecting lining plate; the right end of the pump cover is connected with a mechanical seal.
Furthermore, the right end of the pump body silicon carbide ceramic material is provided with a pump body sealing ring.
Furthermore, the pump cover silicon carbide ceramic material is provided with a pump cover sealing ring in the annular groove positioned at the left side of the pump cover.
Further, the pump body sealing ring is tightly contacted with the pump cover sealing ring.
Furthermore, a gap is reserved between the inner ring of the pump body silicon carbide ceramic material and the outer ring of the pump cover silicon carbide ceramic material.
Further, the thickness of the pump body coating and the pump cover coating is 0.1-0.5mm.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
1. because the reaction sintering silicon carbide or the self-propagating high-temperature synthetic silicon carbide is adopted as the silicon carbide ceramic material, the technical problems that the silicon carbide ceramic material in the prior art is low in fracture toughness and easy to generate brittle fracture and influence the reliability and safety of the silicon carbide ceramic pump are effectively solved, the performances of corrosion resistance, high temperature resistance and the like of the silicon carbide ceramic pump are further improved, the service life is prolonged, and the maintenance cost is reduced.
2. Because the reaction bonding silicon carbide or the oxide bonding silicon carbide is adopted as the coating material, the technical problems that the connection technology between the silicon carbide ceramic material and the metal or other materials is not mature, interfacial delamination, cracking and the like are easy to occur, and the service life of the silicon carbide ceramic pump is influenced are effectively solved, so that the mechanical strength and the shock resistance of the silicon carbide ceramic pump can be enhanced after the coating is realized, the cracking and the falling phenomena are reduced, and the reliability and the safety are improved.
3. Because the pump cover silicon carbide ceramic material is adopted to shrink inwards to form an open flat bottom structure, the technical problems of stress concentration and defect generation of the silicon carbide ceramic pump are effectively solved, the runner form of the silicon carbide ceramic pump is further improved, the hydrodynamic efficiency and the operation stability are improved, and the noise and vibration are reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a schematic view of the pump body according to the embodiment of the present application;
fig. 3 is a schematic structural diagram of a pump cover in an embodiment of the present application.
Detailed Description
Because the reaction sintering silicon carbide or the self-propagating high-temperature synthetic silicon carbide is adopted as the silicon carbide ceramic material, the technical problems that the silicon carbide ceramic material in the prior art is low in fracture toughness and easy to generate brittle fracture and influence the reliability and safety of the silicon carbide ceramic pump are effectively solved, the performances of corrosion resistance, high temperature resistance and the like of the silicon carbide ceramic pump are further improved, the service life is prolonged, and the maintenance cost is reduced.
Because the reaction bonding silicon carbide or the oxide bonding silicon carbide is adopted as the coating material, the technical problems that the connection technology between the silicon carbide ceramic material and the metal or other materials is not mature, interfacial delamination, cracking and the like are easy to occur, and the service life of the silicon carbide ceramic pump is influenced are effectively solved, so that the mechanical strength and the shock resistance of the silicon carbide ceramic pump can be enhanced after the coating is realized, the cracking and the falling phenomena are reduced, and the reliability and the safety are improved.
Because the pump cover silicon carbide ceramic material is adopted to shrink inwards to form an open flat bottom structure, the technical problems of stress concentration and defect generation of the silicon carbide ceramic pump are effectively solved, the runner form of the silicon carbide ceramic pump is further improved, the hydrodynamic efficiency and the operation stability are improved, and the noise and vibration are reduced.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
An anti-drop, wear resistant and corrosion resistant silicon carbide ceramic pump comprising:
the pump body 1, the inner surface of the pump body 1 is provided with a pump body silicon carbide ceramic material 1.1, the outer surface of the pump body silicon carbide ceramic material 1.1 is provided with a pump body coating 1.2, and the right end of the pump body 1 is connected with a connecting lining plate 4;
the impeller 2 is provided with an impeller silicon carbide ceramic material 2.1 on the outer surface of the impeller 2, and the impeller 2 is fixed at the left end of the pump shaft through an impeller gland;
the pump cover 3, the inner surface of the pump cover 3 is provided with a pump cover silicon carbide ceramic material 3.1, the outer surface of the pump cover silicon carbide ceramic material 3.1 is provided with a pump cover coating 3.2, and the right end of the pump cover 3 is connected with a mechanical seal 5;
any one of reaction sintering silicon carbide, self-propagating high-temperature synthesis silicon carbide is adopted by the pump body silicon carbide ceramic material 1.1, the impeller silicon carbide ceramic material 2.1 and the pump cover silicon carbide ceramic material 3.1;
specifically, the reaction sintering silicon carbide is to mix a carbon source and silicon carbide powder, melt solid silicon at a high temperature after molding, infiltrate into pores of a blank body, react with carbon or silicon carbide in the blank body to generate more silicon carbide, and the process can obtain high-purity, high-strength and high-toughness silicon carbide ceramic, so that the reaction sintering silicon carbide is suitable for the fields of bulletproof, wear resistance, corrosion resistance and the like.
Specifically, the self-propagating high-temperature synthesis of silicon carbide is a method of igniting a reactant blank by an external heat source and then self-sustaining the synthesis process by using chemical reaction heat released during the reaction. The principle is that silicon powder, carbon black and other raw materials are mixed according to a certain proportion, other activating agents such as magnesium, aluminum and the like are added, and then the mixture reacts at the temperature of 1000-1150 ℃ to generate silicon carbide powder.
Specifically, the novel silicon carbide ceramic material is adopted, so that the corrosion resistance, the high temperature resistance and other performances of the silicon carbide ceramic pump can be improved, the service life is prolonged, and the maintenance cost is reduced.
The pump body coating 1.2 and the pump cover coating 3.2 adopt any one of reaction bonding silicon carbide or oxide bonding silicon carbide.
Specifically, the reaction bonding silicon carbide coating is formed by mixing silicon carbide powder and carbon powder and then reacting at high temperature, and has high strength, high toughness and high wear resistance.
Specifically, the oxide bonding silicon carbide coating is formed by mixing silicon carbide powder and an oxide binder and sintering at a low temperature, and has good corrosion resistance and oxidation resistance.
Specifically, the mechanical strength and the shock resistance of the silicon carbide ceramic pump can be enhanced after the coating is adopted, the phenomena of cracking and falling are reduced, and the reliability and the safety are improved.
Specifically, the thickness of the coating is generally between 0.1 and 0.5mm, and the performance and the service life of the coating can be influenced by excessive thickness or excessive thinness.
The center of the pump cover silicon carbide ceramic material 3.1 is contracted inwards to form an open flat bottom structure, the structure is similar to a bowl shape, and the contracted section and the flat bottom structure are in arc transition.
Specifically, the optimized design and manufacturing process are adopted, so that the runner form of the silicon carbide ceramic pump is improved, the hydrodynamic efficiency and the operation stability are improved, and the noise and vibration are reduced.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. An anti-drop, wear resistant and corrosion resistant silicon carbide ceramic pump comprising:
the pump body (1), the inner surface of the pump body (1) is provided with a pump body silicon carbide ceramic material (1.1), and the outer surface of the pump body silicon carbide ceramic material (1.1) is provided with a pump body coating (1.2);
the impeller (2), the impeller silicon carbide ceramic material (2.1) is arranged on the outer surface of the impeller (2);
the pump cover (3), the inner surface of the pump cover (3) is provided with a pump cover silicon carbide ceramic material (3.1), and the outer surface of the pump cover silicon carbide ceramic material (3.1) is provided with a pump cover coating (3.2);
the pump body silicon carbide ceramic material (1.1), the impeller silicon carbide ceramic material (2.1) and the pump cover silicon carbide ceramic material (3.1) adopt any one of reaction sintering silicon carbide and self-propagating high-temperature synthetic silicon carbide;
the pump body coating (1.2) and the pump cover coating (3.2) adopt any one of reaction bonding silicon carbide or oxide bonding silicon carbide;
the center of the pump cover silicon carbide ceramic material (3.1) is contracted inwards to form an open flat bottom structure, and the contracted section and the flat bottom structure are in arc transition.
2. The anti-drop, wear-resistant and corrosion-resistant silicon carbide ceramic pump of claim 1, wherein: the impeller (2) is fixed at the left end of the pump shaft through an impeller gland;
the right end of the pump body (1) is connected with a connecting lining plate (4);
the right end of the pump cover (3) is connected with a mechanical seal (5).
3. The anti-drop, wear-resistant and corrosion-resistant silicon carbide ceramic pump of claim 1, wherein: the right end of the pump body silicon carbide ceramic material (1.1) is provided with a pump body sealing ring (1.4).
4. The anti-drop, wear-resistant and corrosion-resistant silicon carbide ceramic pump of claim 1, wherein: the pump cover silicon carbide ceramic material (3.1) is provided with a pump cover sealing ring (3.4) in an annular groove positioned on the left side of the pump cover (3).
5. A drop-resistant, wear-resistant and corrosion-resistant silicon carbide ceramic pump according to claim 3, wherein: the pump body sealing ring (1.4) is tightly contacted with the pump cover sealing ring (3.4).
6. The anti-drop, wear-resistant and corrosion-resistant silicon carbide ceramic pump of claim 1, wherein: a gap is reserved between an inner ring (1.3) of the pump body silicon carbide ceramic material (1.1) and an outer ring (3.5) of the pump cover silicon carbide ceramic material (3.1).
7. The anti-drop, wear-resistant and corrosion-resistant silicon carbide ceramic pump of claim 1, wherein: the thicknesses of the pump body coating (1.2) and the pump cover coating (3.2) are 0.1-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320919889.8U CN220337119U (en) | 2023-04-23 | 2023-04-23 | Anti-drop wear-resisting corrosion-resisting carborundum ceramic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320919889.8U CN220337119U (en) | 2023-04-23 | 2023-04-23 | Anti-drop wear-resisting corrosion-resisting carborundum ceramic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220337119U true CN220337119U (en) | 2024-01-12 |
Family
ID=89442482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320919889.8U Active CN220337119U (en) | 2023-04-23 | 2023-04-23 | Anti-drop wear-resisting corrosion-resisting carborundum ceramic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220337119U (en) |
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2023
- 2023-04-23 CN CN202320919889.8U patent/CN220337119U/en active Active
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