Title:
Blade structure for acid and base resistant vertical-pump blade structure
Kind Code:
A1


Abstract:
A blade structure for an acid and base resistant vertical-pump is disclosed. The vertical-pump blade structure comprises a motor module with a front cover seat and a top cover seat, a water-output seat, characterized in that the body of the pump is provided with an isolation ring having a bottom end mounted with a turbulent pump blade and the pump blade is secured to the axle, a hollow bottom ring is provided at the hollow space of the body and the bottom end of the turbulent pump blade, and the turbulent pump blade is mounted to the water output seat.



Inventors:
Wu, Huang-chang (Taipei, TW)
Application Number:
10/392858
Publication Date:
09/23/2004
Filing Date:
03/21/2003
Assignee:
WU HUANG-CHANG
Primary Class:
International Classes:
F04D7/06; F04D29/22; (IPC1-7): F01D1/02
View Patent Images:



Primary Examiner:
KERSHTEYN, IGOR
Attorney, Agent or Firm:
Huang-Chang Wu (Taipei, TW)
Claims:

I claim:



1. A blade structure for an acid and base resistant vertical-pump having a motor module with a front cover seat and a top cover seat, a water-output seat, characterized in that the body of the pump is provided with an isolation ring having a bottom end mounted with a turbulent pump blade and the pump blade is secured to the axle, a hollow bottom ring is provided at the hollow space of the body and the bottom end of the turbulent pump blade, and the turbulent pump blade is mounted to the water output seat.

Description:

BACKGROUND OF THE INVENTION

[0001] (a) Technical Field of the Invention

[0002] The present invention relates to an improved structure of blade for vertical-pump, and in particular, blade for a vertical-pump which can prevent air from mixing with chemical solution.

[0003] (b) Description of the Prior Art

[0004] FIGS. 1 to 4 show a conventional vertical-pump and its application. FIGS. 5 to 9 show blade structure of another conventional pump blade where the blades are turbulent plates.

[0005] Chemical pumps are commonly used in chemical plants and a well known art. In some chemical processes, such as high precision electro-plating, the chemical solution must not contain air bubbles. In addition some pumps utilize O-rings elements for certain sealing and these rings fail to function at high temperature. Thus, there is a need for an improved seal and/or the pump blade for use in the vertical-pump which is capable of preventing air from contacting with chemical solutions.

[0006] The drawbacks of the conventional vertical pump are explained as follows:

[0007] Referring to FIGS. 1 to 4, there is shown the state of application of the vertical pump. As shown in FIG. 1, the conventional vertical pump 10 is used is chemical pond AO (electroplating and acid-rinse pond) and the pump 10 is used to suck the used chemical solution AO1 from the chemical pond AO to the filter B and then recycling to the chemical pond AO.

[0008] Referring to FIGS. 2 and 3, the components of the vertical pump 10 comprises a motor module 101 having a body 102 below the motor module 101, a blade 103 and a water-output seat 104. The lower end of the motor module 101 is provided with a motor front cover seat 1010 and a shaft 1011, a body 102 having a hollow space 1020 having a hollow bottom ring 1021 at the end the hollow space 1020. The motor module 101 and the upper end of the body 102 are firmly sealed and the shaft 1011 of the motor 101 passes through the hollow space 1021 and the bottom ring 1021. The end of the shaft 1011 protrudes from the bottom ring 1021 and the end of the shaft 1011 is then connected to a blade 103. The blade 103 is then mounted to the water-output seat 104 and the upper side of the water-output seat 104 is firmly sealed with the bottom end of the body 102 and the water output seat 104 is provided with an output pipe 1041.

[0009] Referring to FIGS. 3 and 4, when the pump 10 triggers the motor module 101 and the shaft 1011 and the blade 103 is driven to rotate, the thus produced centrifugal force forces the chemical solution AO1 via the water output pipe 1041, as shown in FIG. 1, the discharged chemical solution A01 is forced to the filter B and then recycled to the chemical solution AO.

[0010] Referring to FIG. 4, the centrifugal force generated by the blade 103 the chemical solution AO1 flows along the bottom ring 1021 and the hollow space 10 to increase the water level, the increased water level damages the motor module 101.

[0011] As shown in FIGS. 5-9, the blade 103 is provided with turbulent blade 1031, and the external surrounding of the turbulent plate 1031 is radially mounted with an upright ring 1032 and the turbulent plate 1031 and the blade 103 are located beneath the bottom ring 1021.

[0012] The function of the turbulent plate 1031 and the upright ring 1032 adhered to the bottom ring 1021 is shown in FIG. 7 and FIG. 6, the blade 103 is rotated when the motor module 101 and the shaft 1011 are triggered and the centrifugal force generated by the blade 103 forces the chemical solution AO1 via the water output pipe 1041 to discharge and the rotated turbulent plate 1031 and the upright ring 1032 are adhered below the bottom ring 1021, and the generated air pressure isolates the chemical solution AO1 outside the upright ring 1032 and prevents the chemical solution AO1 to rise to the hollow space of the body 102.

[0013] The drawbacks of the turbulent plates 1031 and the blade 103 of the upright ring 1032 are shown in FIGS. 6, 8 &9. Due to the fact that the rotation of the motor module 101 and that of the shaft 1011 are different, and the turbulent plate 1031 and the upright ring 1032 isolate the water solution AO1 to the body.

[0014] When the rotation of the shaft 1011 is low, the turbulent gas pressure is not sufficient and the chemical solution AO1 rises to the body 102 and if the rotation of the shaft 1011 is too high, and the turbulent gas pressure is too high, and the gas pressure enters the chemical solution AO1 to produce bubble E which is the problem caused to high precision eletroplating or acid pond. As shown in FIG. 1, the bubble E and the chemical solution AO1 flow together to the chemical solution, and the bubble will seriously affect the quality of high precison electroplating and acid pond of the chemical solution AO1.

[0015] Referring to FIG. 10, when the rotation of the shaft 1011 is at normal rotation, the turbulent plate 1031 is made into height A of FIG. 10 so as to generate suitable turbulent gas pressure. When the rotation is high, the height of the turbulent plate 1031 is made into height B as shown in the figure so as to reduce turbulent gas pressure to avoid gas pressure entering the chemical solution AO1 to produce bubble E. When the rotation is low, the turbulent plate 1031 is made to height B as shown in the figure so as to increase the turbulent gas pressure and to avoid the chemical solution AO1 rising to the body. It is not easy to fully control the rotation of the shaft 1011 and the height of the turbulent plate 1031.

SUMMARY OF THE INVENTION

[0016] Accordingly, it is an object of the present invention to provide a blade structure for an acid and base resistant vertical-pump having a motor module with a front cover seat and a top cover seat, a water-output seat, characterized in that the body of the pump is provided with an isolation ring having a bottom end mounted with a turbulent pump blade and the pump blade is secured to the axle, and a hollow bottom ring is provided at the hollow space of the body and the bottom end of the turbulent pump blade, and the turbulent pump blade is mounted to the water output seat.

[0017] Yet a further object of the present invention is to provide a blade structure for an acid and base resistant vertical-pump, wherein air is prevented from contacting with the pump blade and therefore chemical solution will not produce air bubbles.

[0018] The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.

[0019] Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 shows schematically a conventional vertical-pump.

[0021] FIG. 2 shows schematically a conventional vertical-pump system.

[0022] FIG. 3 shows schematically the installation of a conventional vertical-pump.

[0023] FIG. 4 shows a conventional vertical-pump blade and the re-cycle diagram.

[0024] FIG. 5 illustrates a conventional turbulent pump blade.

[0025] FIG. 6 is a conventional vertical-pump blade with turbulent pump blades.

[0026] FIG. 7 is a schematic view of a conventional vertical-pump generating bubbles.

[0027] FIG. 8 is a conventional vertical-pump showing the re-cycle of fluid.

[0028] FIG. 9 is a schematic view showing the different in height of the turbulent plate in a conventional pump.

[0029] FIG. 10 is a vertical-pump in accordance with the present invention.

[0030] FIG. 11 is a schematic view of the vertical-pump.

[0031] FIG. 12 is a schematic view showing the pump blades in application of the present invention.

[0032] FIG. 13 is another preferred embodiment in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.

[0034] Referring to FIGS. 10, 11, 12 and 13, there is shown an enlarged view of a vertical-pump having turbulent pump blade. The pump 1 is an acid and base resistant pump having a motor module 11, a motor front cover seat 110 positioned at the bottom end of the motor module 11 and an axle 111. The front cover seat 110 is connected to the top cover seat 121 of the body 12 of the pump 1. The bottom end of the body 12 is then connected to a water-output seat 14. The axle 111 passes through a hollow space 122 of the body 12, and the hollow space 122 is provided with an isolation ring 1220. The bottom end of the isolation ring 1220 is positioned with a turbulent pump blade 1221 which is mounted to the axle 111. The turbulent pump blade 1221 is provided with turbulent impeller 1222, and the impellers 1222 are arranged radially and are in the number of two or eight. The bottom end of the pump blade 1221 and the hollow space 122 is mounted with a hollow bottom ring 1223. The bottom face of the hollow bottom ring 1223 is a pump blade 13 which is connected to the axle 111. The pump blade 13 is then mounted with the water-output 14 which is disposed onto the bottom end of the body 12. When the vertical-pump 1 is in operation, the axle 111 rotates the turbulent pump blade 1221 and the pump blade 13. The pump blade 13 centrifugally expels chemical solution through the outlet 141 of the water-outlet seat 14. Next, when the pump blade 13 is activated, chemical solution A01 is prevented from going upward. This is achieved by using the axle 111 to synchronize the pump blade 1221 to produce a pressure. The air current controls the liquid level of the chemical solution A01 below the turbulent pump blade 1221. Thus the liquid surface of the chemical solution A01 and the pump blade 13 are kept a distance. Thus, air is fully prevented from contacting the pump blade 13, and the chemical solution A01 will not produce air bubbles E. The turbulent impeller 1222, regardless of its speed, can be increased in height. Thus, this can prevent the level of chemical solution A01 to rise beyond the isolation ring 1220.

[0035] In order to increase the efficiency of the impeller 1222, referring to FIG. 13, the external of the impeller 1222 is disposed with an upright ring 12221. This increases its efficiency.

[0036] It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.

[0037] While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.