CN107559208B - A kind of high-temperature resisting liquid chemical pump - Google Patents
A kind of high-temperature resisting liquid chemical pump Download PDFInfo
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- CN107559208B CN107559208B CN201710551616.1A CN201710551616A CN107559208B CN 107559208 B CN107559208 B CN 107559208B CN 201710551616 A CN201710551616 A CN 201710551616A CN 107559208 B CN107559208 B CN 107559208B
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- pump
- motor
- blade
- sharf
- pump housing
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- 239000007788 liquid Substances 0.000 title claims abstract description 34
- 239000000126 substance Substances 0.000 title claims abstract description 19
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims description 35
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 27
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 26
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 26
- 230000004048 modification Effects 0.000 claims description 20
- 238000012986 modification Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 18
- -1 polytetrafluoroethylene Polymers 0.000 claims description 13
- 229920002050 silicone resin Polymers 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 239000008247 solid mixture Substances 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 229920006361 Polyflon Polymers 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000001307 helium Substances 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 4
- 230000007659 motor function Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 6
- 239000004519 grease Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical class O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of high-temperature resisting liquid chemical pumps, it is related to chemical industry pump technical field, including first motor, first shaft coupling, pump housing shield, pump shaft, the first blade, feed liquor port, the first filter screen, outlet tube, the second blade, sharf, the second filter screen, liquid outlet, second shaft coupling, the second motor, the pump housing；A kind of high-temperature resisting liquid chemical pump of the present invention, can work in high-temp liquid, will not generate stability influence to pump parts, component, delay unit service life can be effectively protected.
Description
Technical field
The invention belongs to chemical industry pump technical fields, and in particular to a kind of high-temperature resisting liquid chemical pump.
Background technique
Chemical industry occupies very important position in national economy, chemical pump as crucial corollary equipment also increasingly
It is concerned by people.Since the characteristic of chemical medium is intricate, the requirement of user is continuously improved in addition, to chemical pump performance
It is required that it is higher and higher, but structure is complicated for used chemical pump in the market, is less compliant in high-temp liquid and uses, when in height
When carrying out operation in geothermal liquid, stability influence can be generated to pump parts, cause component life to reduce problem easy to damage and go out
It is existing.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of high-temperature resisting liquid chemical pump is provided.
The present invention is achieved by the following technical solutions:
A kind of high-temperature resisting liquid chemical pump, including first motor, first shaft coupling, pump housing shield, pump shaft, the first blade,
Feed liquor port, the first filter screen, outlet tube, the second blade, sharf, the second filter screen, liquid outlet, second shaft coupling, second
Motor, the pump housing；The pump housing is vertically arranged in pump housing shield, and the pump shaft is vertically arranged in pump body, first leaf
Piece is arranged in pump shaft bottom, and the pump shaft is connected to first shaft coupling, and first shaft coupling is connected to first motor, the liquid feeding end
Mouth is arranged in pump housing bottom, and feed liquor port is connected to pump housing shield and outlet tube, and the outlet tube is arranged on the left of pump housing shield,
First blade is arranged in outlet end mouth, and the outlet tube and feed liquor port junction are provided with the first filter screen, described
It is provided with liquid outlet on the left of outlet tube, sharf is provided on the right side of the liquid outlet, the sharf is arranged in outlet tube, institute
It states sharf bottom and is provided with the second blade, second shaft coupling, the second shaft coupling top are connected to above the sharf
It is connected to the second motor, second motor is arranged in pump housing shield, in the outlet tube among the sharf and liquid outlet
It is provided with the second filter screen.
Further, more than the second strainer mesh number is greater than the first filter screen mesh number.
Further, the first motor power is greater than the second power of motor, and first motor and the second motor share one
Control switch.
Further, first motor main shaft direction of rotation is consistent with the second electric machine main shaft direction of rotation.
Further, the feed liquor port, the first blade, the second blade are by polytetrafluoroethylene (PTFE) by plasma-activated
Collaboration alpha zirconium phosphate modification infusorial earth is made by 100:15-18 mass ratio afterwards.
Further, the polytetrafluoroethylene (PTFE) is by plasma-activated specifically: adds polyflon particle
It is added in low-temperature plasma processing unit and carries out Low Temperature Plasma Treating, processing gas is helium, processing pressure 110-
120Pa, processing time are 1.5-2min.
Further, the pump shaft surface, sharf surface and outlet tube inner wall are applied by silicone resin coating, described
Alpha zirconium phosphate modification infusorial earth containing its quality 2.3-2.5% in silicone resin coating.
Further, the alpha zirconium phosphate modification infusorial earth is the preparation method comprises the following steps: alpha zirconium phosphate is ground, 750 mesh excessively, so
It is evenly dispersed into deionized water afterwards, be made mass fraction be 0.10% alpha zirconium phosphate suspension, by 600 mesh diatomite with
Alpha zirconium phosphate suspension after evenly mixing, is then heated to 98 DEG C by 1:5-6 mass ratio, with 1200r/min revolving speed stirring 2
Hour, it then filters, drying to constant weight, obtains solid mixture, then solid mixture and polyvinyl alcohol are pressed 1:1 mass ratio
Uniformly mixing, then carry out grinding 30min, then be filtered, cleaned using deionized water, drying to constant weight to get.
The present invention is by protecting the pump housing in pump housing shield, in use, need to only insert feed liquor port in high-temp liquid
Enter in high-temp liquid, starting motor, i.e., operable, the cavity with circular hole import that feed liquor port is made of plastics,
Feed liquor port, the first blade, the second blade cooperate with alpha-phosphate by polytetrafluoroethylene (PTFE) after plasma-activated in the present invention
Modified zirconia diatomite is made, and polytetrafluoroethylplastic plastic has excellent ageing-resistant performance, resistance to chemical corrosion and fabulous heat
Stability can be resistant to 327 DEG C of high temperature, and when at 260 DEG C, breaking strength is still able to maintain 0.5MPa or so, anti-Qu Qiang
Degree is able to maintain in 1.4MPa, but polytetrafluoroethylene (PTFE) mechanical performance is poor, and poor processability poor thermal conductivity, easy-cold flow passes through
Low Temperature Plasma Treating is carried out to polytetrafluoroethylgranule granule, enables to its surface etch, and carbon-fluorine bond and carbon-to-carbon occurs
The fracture of key produces a large amount of free radicals, while can introduce active group, and the surface of great increased polytetrafluoroethylene (PTFE) is free
Can, improve its wetability and cementability, it made to generate surface active layer, then acts synergistically with alpha zirconium phosphate modification infusorial earth,
Its heat-resisting quantity can be further improved, mechanical performance and processing performance are improved, increased thermal conductivity energy reduces cold flow,
Its comprehensive performance is significantly improved, so that manufactured feed liquor port, the first blade, the second blade excellent combination property, it can
Steady in a long-term work；By applying in pump shaft surface, sharf surface and outlet tube inner wall by silicone resin coating,
Contain alpha zirconium phosphate modification infusorial earth in the silicone resin coating, by adding alpha-phosphate in silicone resin coating
Modified zirconia diatomite can significantly improve the high temperature resistance of organic siliconresin, and can improve chemically-resistant to a certain extent
Corrosive nature, so that being coated with the pump shaft of silicone resin coating, sharf and outlet tube can be for a long time in high-temperature liquid
It works in body, greatly protects pump shaft, sharf and outlet tube, increase its service life.
The present invention has the advantage that a kind of high-temperature resisting liquid chemical pump of the present invention compared with prior art, can be in high temperature
It works in liquid, stability influence will not be generated to pump parts, component, delay unit service life can be effectively protected.
Detailed description of the invention
Fig. 1 is a kind of high-temperature resisting liquid chemical pump structural schematic diagram.
Specific embodiment
Embodiment 1
A kind of high-temperature resisting liquid chemical pump, including first motor 1, first shaft coupling 2,15 shield 3 of the pump housing, pump shaft 4, first
Blade 5, feed liquor port 6, the first filter screen 7, outlet tube 8, the second blade 9, sharf 10, the second filter screen 11, liquid outlet 12,
Second shaft coupling 13, the second motor 14, the pump housing 15；The pump housing 15 is vertically arranged in 15 shield 3 of the pump housing, and the pump shaft 4 is perpendicular
Straight to be arranged inside the pump housing 15, first blade 5 is arranged in 4 bottom of pump shaft, and the pump shaft 4 is connected to first shaft coupling 2, the
One shaft coupling 2 is connected to first motor 1, and the feed liquor port 6 is arranged in 15 bottom of the pump housing, and feed liquor port 6 is connected to the pump housing 15
Shield 3 and outlet tube 8, the setting of outlet tube 8 are arranged in 15 shield of the pump housing, 3 left side, first blade 5 in outlet end mouth
Interior, the outlet tube 8 is provided with the first filter screen 7 with 6 junction of feed liquor port, is provided with liquid outlet on the left of the outlet tube 8
12, sharf 10 is provided on the right side of the liquid outlet 12, the sharf 10 is arranged in outlet tube 8,10 bottom of sharf
Portion is provided with the second blade 9, and second shaft coupling 13 is connected to above the sharf 10, is connected at the top of the second shaft coupling 13
To the second motor 14, second motor 14 is arranged in 15 shield 3 of the pump housing, the sharf 10 and going out among liquid outlet 12
The second filter screen 11 is provided in liquid pipe 8.
More than the second strainer mesh number is greater than 7 mesh number of the first filter screen.
1 power of first motor is greater than 14 power of the second motor, and first motor 1 and the second motor 14 share a control
Switch.
The 1 main shaft direction of rotation of first motor and 14 main shaft direction of rotation one of the second motor.
The feed liquor port, the first blade, the second blade cooperate with α-by polytetrafluoroethylene (PTFE) after plasma-activated
Basic zirconium phosphate modification infusorial earth is made by 100:15 mass ratio.
The polytetrafluoroethylene (PTFE) is by plasma-activated specifically: polyflon particle is added to low temperature etc.
Carry out Low Temperature Plasma Treating in ion manipulation arrangement, processing gas is helium, processing pressure 110Pa, and the processing time is
1.5min。
The pump shaft surface, sharf surface and outlet tube inner wall are applied by silicone resin coating, the organosilicon tree
Alpha zirconium phosphate modification infusorial earth in grease coating material containing its quality 2.3%.
The preparation method comprises the following steps: alpha zirconium phosphate is ground, then 750 mesh excessively uniformly divide the alpha zirconium phosphate modification infusorial earth
It is dissipated in deionized water, the alpha zirconium phosphate suspension that mass fraction is 0.10% is made, by 600 mesh diatomite and alpha zirconium phosphate
Suspension after evenly mixing, is then heated to 98 DEG C by 1:5 mass ratio, with 1200r/min revolving speed stirring 2 hours, then mistake
Filter, drying to constant weight, obtains solid mixture, then solid mixture is uniformly mixed with polyvinyl alcohol by 1:1 mass ratio, so
After carry out grinding 30min, then be filtered, cleaned using deionized water, drying to constant weight to get.
Embodiment 2: it is that the feed liquor port, the first blade, the second blade are by polytetrafluoroethyl-ne with the difference of embodiment 1
Alkene cooperates with alpha zirconium phosphate modification infusorial earth to be made by 100:18 mass ratio after plasma-activated.
The polytetrafluoroethylene (PTFE) is by plasma-activated specifically: polyflon particle is added to low temperature etc.
Carry out Low Temperature Plasma Treating in ion manipulation arrangement, processing gas is helium, processing pressure 120Pa, and the processing time is
2min。
The pump shaft surface, sharf surface and outlet tube inner wall are applied by silicone resin coating, the organosilicon tree
Alpha zirconium phosphate modification infusorial earth in grease coating material containing its quality 2.5%.
The preparation method comprises the following steps: alpha zirconium phosphate is ground, then 750 mesh excessively uniformly divide the alpha zirconium phosphate modification infusorial earth
It is dissipated in deionized water, the alpha zirconium phosphate suspension that mass fraction is 0.10% is made, by 600 mesh diatomite and alpha zirconium phosphate
Suspension after evenly mixing, is then heated to 98 DEG C by 1:6 mass ratio, with 1200r/min revolving speed stirring 2 hours, then mistake
Filter, drying to constant weight, obtains solid mixture, then solid mixture is uniformly mixed with polyvinyl alcohol by 1:1 mass ratio, so
After carry out grinding 30min, then be filtered, cleaned using deionized water, drying to constant weight to get.
Embodiment 3 is that the feed liquor port, the first blade, the second blade are by polytetrafluoroethyl-ne with the difference of embodiment 1
Alkene cooperates with alpha zirconium phosphate modification infusorial earth to be made by 100:16 mass ratio after plasma-activated.
The polytetrafluoroethylene (PTFE) is by plasma-activated specifically: polyflon particle is added to low temperature etc.
Carry out Low Temperature Plasma Treating in ion manipulation arrangement, processing gas is helium, processing pressure 111Pa, and the processing time is
1.8min。
The pump shaft surface, sharf surface and outlet tube inner wall are applied by silicone resin coating, the organosilicon tree
Alpha zirconium phosphate modification infusorial earth in grease coating material containing its quality 2.4%.
The preparation method comprises the following steps: alpha zirconium phosphate is ground, then 750 mesh excessively uniformly divide the alpha zirconium phosphate modification infusorial earth
It is dissipated in deionized water, the alpha zirconium phosphate suspension that mass fraction is 0.10% is made, by 600 mesh diatomite and alpha zirconium phosphate
Suspension after evenly mixing, is then heated to 98 DEG C by 1:5.5 mass ratio, with 1200r/min revolving speed stirring 2 hours, then
Filtering, drying to constant weight, obtains solid mixture, then solid mixture is uniformly mixed with polyvinyl alcohol by 1:1 mass ratio,
Then carry out grinding 30min, then be filtered, cleaned using deionized water, drying to constant weight to get.
Comparative example 1: it is only that feed liquor port, the first blade, the second blade only by polytetrafluoroethylene (PTFE) with the difference of embodiment 1
Resin is made.
Comparative example 2: it is only that pump shaft surface, sharf surface and outlet tube inner wall are applied by organic with the difference of embodiment 1
Silicon resin coating does not add alpha zirconium phosphate modification infusorial earth.
Test:
First blade of same specification made of embodiment and comparative example 1 is subjected to high temperature resistant test, detects it in not equality of temperature
Spend lower breaking strength (GB/T 1039-1992):
1 breaking strength of table/MPa
| 260℃ | 320 | 340 | 380 | |
| Embodiment 1 | 8.6 | 5.5 | 3.7 | 1.8 |
| Embodiment 2 | 8.2 | 5.1 | 3.4 | 1.3 |
| Embodiment 3 | 8.3 | 5.2 | 3.6 | 1.5 |
| Comparative example 1 | 5.0 | 0.8 | / | / |
As can be seen from Table 1, polytetrafluoroethylene (PTFE) can be significantly improved by adding a certain amount of alpha zirconium phosphate modification infusorial earth
The high-temperature resistant result of plastics.
Test test under same test conditions with coating in comparative example 2 to embodiment:
Table 2
| High temperature resistant (280 DEG C)/h | Adhesive force/MPa | |
| Embodiment 1 | 412 | 6.24 |
| Embodiment 2 | 408 | 6.22 |
| Embodiment 3 | 410 | 6.21 |
| Comparative example 2 | 125 | 3.32 |
As can be seen from Table 2, by adding a certain amount of alpha zirconium phosphate modification infusorial earth energy in silicone resin coating
Enough effective heat resistances and adhesive force for improving coating.
Claims (1)
1. a kind of high-temperature resisting liquid chemical pump, which is characterized in that including first motor, first shaft coupling, pump housing shield, pump shaft,
First blade, feed liquor port, the first filter screen, outlet tube, the second blade, sharf, the second filter screen, liquid outlet, second
Axis device, the second motor, the pump housing；The pump housing is vertically arranged in pump housing shield, and the pump shaft is vertically arranged in pump body, institute
It states the first blade to be arranged in pump shaft bottom, the pump shaft is connected to first shaft coupling, and first shaft coupling is connected to first motor, institute
It states feed liquor port to be arranged in pump housing bottom, feed liquor port is connected to pump housing shield and outlet tube, and the outlet tube is arranged in the pump housing
On the left of shield, first blade is arranged in outlet end mouth, and the outlet tube and feed liquor port junction are provided with the first mistake
Strainer, the outlet tube left side are provided with liquid outlet, and sharf is provided on the right side of the liquid outlet, and the sharf setting is going out
In liquid pipe, the sharf bottom is provided with the second blade, is connected to second shaft coupling above the sharf, and described second
The second motor is connected at the top of axis device, second motor is arranged in pump housing shield, among the sharf and liquid outlet
The second filter screen is provided in outlet tube；The second filter screen mesh number is greater than the first filter screen mesh number；The first motor function
Rate is greater than the second power of motor, and first motor and the second motor share a control switch；First motor main shaft rotation side
To consistent with the second electric machine main shaft direction of rotation；The feed liquor port, the first blade, the second blade are passed through by polytetrafluoroethylene (PTFE)
Collaboration alpha zirconium phosphate modification infusorial earth is made by 100:15-18 mass ratio after plasma-activated；The polytetrafluoroethylene (PTFE) warp
It crosses plasma-activated specifically: polyflon particle is added in low-temperature plasma processing unit and carries out low temperature etc.
Gas ions processing, processing gas are helium, and processing pressure 110-120Pa, the processing time is 1.5-2min；The pump shaft table
Face, sharf surface and outlet tube inner wall are coated with silicone resin coating, contain its quality in the silicone resin coating
The alpha zirconium phosphate modification infusorial earth of 2.3-2.5%；The alpha zirconium phosphate modification infusorial earth is the preparation method comprises the following steps: alpha zirconium phosphate is ground
Mill crosses 750 mesh, then evenly dispersed into deionized water, and the alpha zirconium phosphate suspension that mass fraction is 0.10% is made, will
600 mesh diatomite and alpha zirconium phosphate suspension press 1:5-6 mass ratio after evenly mixing, 98 DEG C are then heated to, with 1200r/
Min revolving speed stirs 2 hours, then filters, and drying to constant weight, obtains solid mixture, then by solid mixture and polyvinyl alcohol
It is uniformly mixed by 1:1 mass ratio, then carries out grinding 30min, then be filtered, cleaned using deionized water, dried
To constant weight to get.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710551616.1A CN107559208B (en) | 2017-07-07 | 2017-07-07 | A kind of high-temperature resisting liquid chemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710551616.1A CN107559208B (en) | 2017-07-07 | 2017-07-07 | A kind of high-temperature resisting liquid chemical pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107559208A CN107559208A (en) | 2018-01-09 |
| CN107559208B true CN107559208B (en) | 2019-04-23 |
Family
ID=60973068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710551616.1A Active CN107559208B (en) | 2017-07-07 | 2017-07-07 | A kind of high-temperature resisting liquid chemical pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN107559208B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128115A (en) * | 2020-09-27 | 2020-12-25 | 安徽埃斯克制泵有限公司 | Corrosion-resistant chemical pump with good sealing performance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4596510A (en) * | 1981-04-04 | 1986-06-24 | Klein, Schanzlin & Becker Aktiengesellschaft | Centrifugal pump for handling of liquid chlorine |
| CN2054096U (en) * | 1988-12-21 | 1990-03-07 | 于义根 | Submerged pump made of corrosion-proof plastics |
| CN2178291Y (en) * | 1993-05-25 | 1994-09-28 | 上海贵盈密封材料制造有限公司 | Pump adapted for handling corrosive fluid |
| CN205559304U (en) * | 2016-01-09 | 2016-09-07 | 志远科技有限公司 | Pump under dense sulfuric acid liquid of high temperature |
| CN206257082U (en) * | 2016-12-07 | 2017-06-16 | 大河泵业集团有限公司 | Chemical pump under a kind of fire-resistant fluid |
-
2017
- 2017-07-07 CN CN201710551616.1A patent/CN107559208B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4596510A (en) * | 1981-04-04 | 1986-06-24 | Klein, Schanzlin & Becker Aktiengesellschaft | Centrifugal pump for handling of liquid chlorine |
| CN2054096U (en) * | 1988-12-21 | 1990-03-07 | 于义根 | Submerged pump made of corrosion-proof plastics |
| CN2178291Y (en) * | 1993-05-25 | 1994-09-28 | 上海贵盈密封材料制造有限公司 | Pump adapted for handling corrosive fluid |
| CN205559304U (en) * | 2016-01-09 | 2016-09-07 | 志远科技有限公司 | Pump under dense sulfuric acid liquid of high temperature |
| CN206257082U (en) * | 2016-12-07 | 2017-06-16 | 大河泵业集团有限公司 | Chemical pump under a kind of fire-resistant fluid |
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| Publication number | Publication date |
|---|---|
| CN107559208A (en) | 2018-01-09 |
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Denomination of invention: A high temperature resistant liquid chemical pump Effective date of registration: 20200811 Granted publication date: 20190423 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI WOLONG PUMP & VALVE Co.,Ltd. Registration number: Y2020990000930 |
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Denomination of invention: A high temperature resistant liquid chemical pump Effective date of registration: 20220907 Granted publication date: 20190423 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI WOLONG PUMP & VALVE Co.,Ltd. Registration number: Y2022990000606 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231012 Granted publication date: 20190423 Pledgee: Jingxian SME Financing Guarantee Co.,Ltd. Pledgor: ANHUI WOLONG PUMP & VALVE Co.,Ltd. Registration number: Y2022990000606 |