CN1281400C - Phenolic fibre reinforced plastics die-produced anti-corrosive water ring type vacuum pump - Google Patents
Phenolic fibre reinforced plastics die-produced anti-corrosive water ring type vacuum pump Download PDFInfo
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- CN1281400C CN1281400C CN 03112595 CN03112595A CN1281400C CN 1281400 C CN1281400 C CN 1281400C CN 03112595 CN03112595 CN 03112595 CN 03112595 A CN03112595 A CN 03112595A CN 1281400 C CN1281400 C CN 1281400C
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- pump
- water ring
- vacuum pump
- ring type
- type vacuum
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Abstract
The present invention relates to an anti-corrosive water ring type vacuum pump made of phenolic fiber reinforced plastics in a die production mode, which belongs to the field of a liquid capacity variable type machine. The anti-corrosive water ring type vacuum pump comprises at least one set of front pump covers provided with interface flanges, a gas distribution disk, a pump shell, a back pump cover connected with the pump shell into a whole, and an impeller positioned in a pump cavity. The anti-corrosive water ring type vacuum pump is characterized in that all over-current components are produced by phenolic fiber reinforced plastics shaped by the pressing of a die. The present invention also provides a manufacturing procedure and a structural form of the anti-corrosive water ring type vacuum pump. The over-current components of the water ring type vacuum pump are made of phendic glass fiber reinforced plastics in a die pressing mode, and meantime, the pump shell at the front section is integrated with the gas distribution disk. Without a composite layer, the anti-corrosive water ring type vacuum pump has the advantages of favorable anti-corrosive properties, simple manufacturing technology, high productive efficiency and small work amount of operational maintenance. The anti-corrosive water ring type vacuum pump suitable for pumping various kinds of organic and inorganic acid liquid and slag water which does not contain suspended particles or crystals can be widely applied to industries of chemical industry, pharmacy, papermaking, light textile, food, metallurgy, electron, etc.
Description
Technical field
The invention belongs to the fluid varactor machine field, relate in particular to a kind of water-ring vacuum pump.
Background technology
Water-ring vacuum pump (Water-Ring Vacuum Pump) is realized air-breathing, compression and exhaust by the variation of pump chamber, belongs to wet vacuum pump, is used for extracting or carrying gas more.Along with developing rapidly of industrial and agricultural production and scientific research cause, all trades and professions are growing to the demand of water-ring vacuum pump.But, the gas that contains various acid mediums in oil, the chemical industry production process is extremely strong to the corrosivity of equipment, existing cast iron or steel water-ring vacuum pump are not corrosion-resistant, can't for a long time, stably guarantee the vacuum of equipment, service life is short, the integrated operation cost height that the user bears, owing to often vavuum pump is keeped in repair and changes, production brings very big inconvenience to serialization.
In order to solve the corrosion-resistant problem of water-ring vacuum pump, successively develop stainless steel pump, ceramic pump and composite anticorrosive layer pump, these new pump kinds have some improvement than conventional vacuum pump aspect corrosion-resistant, but still have various deficiencies.The corrosion-resistant scope of stainless steel pump is little, the cost height; The ceramic pump poor toughness, fragile, change trouble; Composite anticorrosive layer pump be owing to adopt the composite construction of unlike material material, and the coefficient of expansion difference of its material is prone to composite anticorrosive slabbing problem such as stitch, swell, come off, both influenced its seal clearance, influence its service life again, the maintenance work amount is big, integrated operation cost height.
June 28 nineteen ninety-five bulletin, notification number is to disclose a kind of acid-resistant ceramic liquid-piston rotary vacuum pump in the Chinese patent of CN 2202205Y, its side cover and the pump housing by ceramic member make lining, outward cylinder iron or steel-casting armouring, centre fill with filler and be composited.Have all corrosion resistant characteristics of the side cover and the pump housing.But it exists lamination layer structure complexity, deficiency that manufacture process is loaded down with trivial details.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of rational in infrastructure, manufacturing process is simple, corrosion resistance and good, long service life, the operation maintenance workload is little, the integrated operation cost is low phenolic fibre reinforced plastics mold are produced corrosion resistant water ring formula vavuum pump.
Technical scheme of the present invention is: a kind of corrosion resistant water ring formula vavuum pump is provided, comprise at least one group of front pump cover that has a flange, gas distribution plate, pump case, with the rear pump cover of pump case one be positioned at the impeller of pump chamber, it is characterized in that: front pump cover, gas distribution plate, pump case and rear pump cover in the above-mentioned overcurrent member, all adopt the phenolic fibre reinforced plastic material to make through mould compression moulding.
The present invention also provides a kind of manufacture method of above-mentioned corrosion resistant water ring formula vavuum pump, it is characterized in that front pump cover, gas distribution plate, pump case and rear pump cover in the described overcurrent member, all adopts following operation to make:
(1) with element mold heat temperature raising to 155 ± 10 ℃;
(2) phenolic fibre reinforced plastics is added in the mould;
(3) mould is forced into 20～80MPa/cm
2
(4) constant temperature pressurize under 155 ± 10 ℃ of temperature, the time of constant temperature pressurize is determined by 0.5～2min/mm member thickness;
(5) mold decompression, cooling, die sinking makes the member semi-finished product;
(6) half-finished each sealing of member is refined to the design accuracy requirement in conjunction with end face, promptly makes the member finished product.
Compared with the prior art, advantage of the present invention is:
1. adopt leading portion pump case and the incorporate structure of gas distribution plate, the mechanical strength height, overall sealing performance is good.
2. each member of pump adopts the material with a kind of material, and there is not the different problem of the coefficient of expansion in no composite bed, corrosion resistance and good, long service life.
3. each member adopts mould compression moulding, does not have thick amount of machining, and smart amount of machining is few, and manufacturing process is simple, the production efficiency height.
4. adopt the phenolic fiberglass reinforced plastics material to make each member of pump, can guarantee the mechanical strength of each member, saved manufactured materials again, reduced manufacturing cost through die pressing.
5. owing to the flow passage components corrosion resistance and good, the operation maintenance workload is little, has reduced user's integrated operation cost.
6. the vavuum pump working solution can be recycled, and has reduced pollution, has reduced operating cost.
Description of drawings
Fig. 1 is a manufacturing process of the present invention flow chart; Fig. 2 is the structural representation of water-ring vacuum pump of the present invention; Fig. 3 is that the A of Fig. 2 is to view; Fig. 4 is the structural representation of one embodiment of the invention; Fig. 5 is the structural representation of another embodiment.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further elaborated.
Among Fig. 1, the flow passage components of corrosion resistant water ring formula vavuum pump provided by the present invention (comprising front pump cover, gas distribution plate, pump case and rear pump cover), all adopt following operation to make:
(1) with element mold heat temperature raising to 155 ± 10 ℃;
(2) phenolic fibre being strengthened compression molding material adds in the mould;
(3) mould is forced into 20～80MPa/cm
2
(4) constant temperature pressurize under 155 ± 10 ℃ of temperature;
(5) mold decompression, cooling, die sinking makes the member semi-finished product;
(6) half-finished each sealing of member is refined to the design accuracy requirement in conjunction with end face, promptly makes the member finished product.
Wherein the length of constant temperature dwell time is selected according to the thickness of member, needs 0.5～2 minute constant temperature dwell time to determine by every millimeter member thickness usually.
Phenolic fibre reinforced plastics, be commonly called as " fiberglass ", a kind of is the fibre reinforced plastics of matrix with the thermosetting resin, system is a filler with glass fibre or various fiber or flaky material (as cotton, glass cloth, paper or asbestos cloth etc.), with phenolic resins (phenol-formaldehyde resin, Phenol-Formaldehyde) be adhesive, the product that makes through the impregnation oven dry.Its light weight and intensity height, relative density is at 1.8g/cm
3About, have only 1/4～1/5 of carbon steel, but hot strength is approaching with carbon steel, even surpasses carbon steel, and its specific strength (intensity is divided by density) can reach 1600, can compare with high-grade alloy steel; Has excellent corrosion resisting performance, atmosphere, water and various non-oxidizing acid Korrosionsmediums such as (hydrochloric acid, dilute sulfuric acid, formic acid, acetic acid, butyric acid) and multiple oils and solvent all there is resistivity preferably, alternative molybdenum stainless steel, the precious metals such as titanium or titanium alloy of containing aspect anticorrosion; Have good designability, can design various infrastructure products neatly as required, can make product that good globality is arranged; Can make shell structure, sandwich, also can or do forms such as reinforcement and improve its rigidity by high modulus fibre.
Select mould compacting phenolic fibre reinforced plastics moulding process, its moulding process is simple, and element of installation can one-shot forming, and the manufacturing cycle is short, the production efficiency height; The goods slitter edge is few, can reduce the back processing capacity; Can have the goods of meticulous or frangible inserts and perforation by molding, and can keep the correct of inserts and eyelet position; Product properties is even, and size is accurate, the quality height; Be particularly useful for making to member processing, the higher water-ring vacuum pump of installation dimension required precision.
The pump housing is taked structure as shown in Figure 2, pump case is divided into forward and backward two sections, the pump housing 6 before wherein leading portion pump case and gas distribution plate one constitute, back segment pump case and rear pump cover one constitute the back pump housing 9, having the front pump cover 5 of flange 7, the preceding pump housing, the back pump housing and connecting section 11 becomes one through securing member 8 connections, be fixed on the support 1, the front end end cap of connecting section and the motor 15 that is positioned at the outer drives impeller of the pump housing 12 connects through securing member and becomes one.
For sealing, the convex-concave step contacts between front pump cover and the preceding pump housing and between the preceding pump housing and the back pump housing.
Among Fig. 3, make each member of pump through die pressing owing to adopt the phenolic fibre reinforced plastic material, under the prerequisite that guarantees mechanical strength, the extraction medium import and export flange 7-1 of front pump cover and 7-2 adopt the version of square flange, both guarantee the mechanical strength of connecting flange, saved manufactured materials again.
The pump housing is taked the version of twin shaft bolster as shown in Figure 4, two front pump cover, two preceding pump housing and single impeller, wherein front axle bolster 21-1 and rear axle bolster 21-2 are divided into pump housing two ends, and the flow passage components of entire pump are made of as symmetrically arranged front pump cover, the preceding pump housing and an impeller two arrangements of mirrors; A side of pump housing 24-1 and impeller 26 constitutes the first work pump chamber before the first front pump cover 22-1, first, the opposite side of pump housing 24-2 and impeller 26 constitutes the second work pump chamber before the second front pump cover 22-2, second, impeller set is contained on the pump shaft 27, and pump shaft connects with drive motors through shaft coupling 25.The suction of first, second pump cover, exhaust outlet 23-1,23-2 connect with equipment installation respectively, and remainder is with embodiment 1.
The pump housing pump housing is taked employing double pump chamber as shown in Figure 5, the version of bilobed wheel, front axle bolster 31-1 and rear axle bolster 31-2 are divided into pump housing two ends, and the flow passage components of entire pump are made of as symmetrically arranged front pump cover, the preceding pump housing, the back pump housing and impeller two arrangements of mirrors; Wherein pump housing 34-1, the first back pump housing 35-1 and the first impeller 33-1 constitute first pump chamber before the first front pump cover 32-1, first, pump housing 34-2, the second back pump housing 35-2 and the second impeller 33-2 constitute second pump chamber before the second front pump cover 32-2, second, two impeller concentric locking collars are contained on the pump shaft 36, and pump shaft connects with drive motors through shaft coupling 37.The exhaust outlet of first pump cover connects through the air inlet of connecting tube 38 with second pump cover, constitutes two-stage tandem pump structure form, and the exhaust outlet of the air inlet of first pump cover and second pump cover connects with equipment installation respectively, and remainder is with embodiment 1.
Each flow passage components of water-ring vacuum pump adopt the phenolic fiberglass reinforced plastics material to make through die pressing among the present invention, adopt the incorporate version of leading portion pump case and gas distribution plate simultaneously, no composite bed, corrosion resistance and good, manufacturing process is simple, the production efficiency height, and the operation maintenance workload is little.Be applicable to the medium of pumping various corrosive gas and in pump, forming pendular ring, can be used for pumping the pulp water that does not contain suspended particulate or crystallization, organic and inorganic sour acid solution.Can be widely used in industries such as chemical industry, pharmacy, papermaking, light textile, food, metallurgy, electronics.
Claims (2)
1. corrosion resistant water ring formula vavuum pump, comprise at least one group of front pump cover that has a flange, gas distribution plate, pump case, with the rear pump cover of pump case one be positioned at the impeller of pump chamber, it is characterized in that: front pump cover, gas distribution plate, pump case and rear pump cover in the above-mentioned overcurrent member, all adopt the phenolic fibre reinforced plastic material to make through mould compression moulding.
2. the manufacture method of a corrosion resistant water ring formula vavuum pump according to claim 1 is characterized in that front pump cover, gas distribution plate, pump case and rear pump cover in the described overcurrent member, all adopts following operation to make:
(1) with element mold heat temperature raising to 155 ± 10 ℃;
(2) phenolic fibre reinforced plastics is added in the mould;
(3) mould is forced into 20～80MPa/cm
2
(4) constant temperature pressurize under 155 ± 10 ℃ of temperature, the time of constant temperature pressurize is determined by 0.5～2min/mm member thickness;
(5) mold decompression, cooling, die sinking makes the member semi-finished product;
(6) half-finished each sealing of member is refined to the design accuracy requirement in conjunction with end face, promptly makes the member finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03112595 CN1281400C (en) | 2003-06-20 | 2003-06-20 | Phenolic fibre reinforced plastics die-produced anti-corrosive water ring type vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03112595 CN1281400C (en) | 2003-06-20 | 2003-06-20 | Phenolic fibre reinforced plastics die-produced anti-corrosive water ring type vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1477312A CN1477312A (en) | 2004-02-25 |
| CN1281400C true CN1281400C (en) | 2006-10-25 |
Family
ID=34152507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03112595 Expired - Lifetime CN1281400C (en) | 2003-06-20 | 2003-06-20 | Phenolic fibre reinforced plastics die-produced anti-corrosive water ring type vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1281400C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128974A (en) * | 2011-11-30 | 2013-06-05 | 黄晓鹏 | Plastic enclosed impeller manufacturing technique |
| CN105422447B (en) * | 2015-12-16 | 2017-09-22 | 淄博华舜耐腐蚀真空泵有限公司 | A kind of corrosion-resistant wet type Roots vaccum pump |
| CN108412763A (en) * | 2018-05-09 | 2018-08-17 | 淄博联帮泵业有限公司 | Anticorrosive anti-wear water-ring vacuum pump |
| RU201690U1 (en) * | 2020-09-25 | 2020-12-28 | Общество с ограниченной ответственностью «УралАктив» | Fan |
| CN113088031A (en) * | 2021-04-09 | 2021-07-09 | 淄博华舜耐腐蚀真空泵有限公司 | Phenolic aldehyde carbon fiber material corrosion-resistant liquid ring vacuum pump |
-
2003
- 2003-06-20 CN CN 03112595 patent/CN1281400C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1477312A (en) | 2004-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZIBO HUASHUN CORROSION PREVENTION VACUUM PUMP CO., Free format text: FORMER OWNER: BOSHAN HUAXIN ANTICORROSIVE PUMP INST. Effective date: 20140618 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140618 Address after: 255200 Electronic Industry Park, Boshan Economic Development Zone, Zibo, Shandong Patentee after: ZIBO HUASHUN ANTICORROSIVE VACUUM PUMP CO.,LTD. Address before: 255200, Shandong City, Boshan province Zibo District West City Village Patentee before: Boshan Huaxin Anticorrosive Pump Inst. |
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| CX01 | Expiry of patent term |
Granted publication date: 20061025 |
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| CX01 | Expiry of patent term |