Pump casing with adaptive primer and impeller

Patent metadata

Field	Value
Publication number	US-11261870-B2
Application number	US-201916587118-A
Country	US
Kind code	B2
Filing date	Sep 30, 2019
Priority date	Sep 30, 2019
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

Technologies are generally described for pump devices that include an adaptive cutwater and impeller arrangement. The power end of the pump device can be coupled to a motor to drive an impeller. The primer plate and impeller of the pump device are removable from the pump casing such that the primer plate and impeller can be replaced or modified as desired for different applications. In some examples, the pump casing includes a primer plate that is removable from the pump casing, where the primer plate includes a discharge cutwater tongue that is specifically spaced and sized to service an impeller of a desired design. The discharge cutwater tongue and impellers in the pump device may thus be serviced for replacement parts, as well as to modify the pump device for different fluids of different fluids properties or hydraulic requirements as may be needed in different applications.

First claim

What is claimed is:

1. A pump apparatus comprising:
a pump casing having a power end mounting face;
a primer plate with a discharge cutwater tongue, wherein the primer plate is configured to be removably placed in the pump casing about the power end mounting face;
a seal ring positioned between the primer plate and the pump casing; and
an impeller that is configured to be removably placed in cooperative alignment with the primer plate about the discharge cutwater tongue,
wherein the impeller is configured to engage a power end when coupled to the power end mounting face, and wherein the discharge cutwater tongue is paired to the impeller for a priming operation of the pump.

2. The pump apparatus of claim 1 , further comprising:
an inner ridge formed along an interior portion of the pump casing about the power end mounting face, wherein
the seal ring is configured to be placed along the inner ridge of the pump casing to seal contact points between the primer plate and the pump casing.

3. The pump apparatus of claim 1 , further comprising mounting studs configured to affix the primer plate to the pump casing and position the discharge cutwater tongue to a pump casing discharge volute.

4. The pump apparatus of claim 3 , wherein the mounting studs each comprise one or more of a smooth rod, a threaded rod, a partially threaded rod, a screw, or a bolt.

5. The pump apparatus of claim 1 , further comprising mounting studs having a first end and a second end, wherein the first end is affixed to the primer plate and the second end is affixed to the pump casing.

6. The pump apparatus of claim 5 , wherein the mounting studs each comprise one or more of a smooth rod, a threaded rod, a partially threaded rod, a screw, or a bolt.

7. The pump apparatus of claim 3 , further comprising a face gasket that is positioned between the primer plate and the pump casing.

8. The pump apparatus of claim 1 , further comprising:
a second primer plate with a second cutwater tongue, wherein the second primer plate is configured to modularly replace the primer plate.

9. The pump apparatus of claim 1 , further comprising:
a second impeller configured to replace the impeller, wherein the second impeller is further configured to be removably placed in cooperative alignment with the primer plate about the discharge cutwater tongue.

10. The pump apparatus of claim 9 , wherein a material of the second impeller is operable in a corrosive fluid.

11. The pump apparatus of claim 1 , further comprising:
a second primer plate with a second discharge cutwater tongue, wherein the second primer plate is configured to replace the primer plate; and
a second impeller configured to replace the impeller to change one of a hydraulic performance or a wear, wherein the second impeller is further configured to be removably placed in cooperative alignment with the second primer plate about the second discharge cutwater tongue.

12. The pump apparatus of claim 1 , further comprising a power end that is coupled to the power end mounting face, wherein the power end includes a shaft that is operatively configured to engage and rotate the impeller.

13. A pump apparatus comprising:
a pump casing having a power end mounting face;
an inner ridge formed along an interior portion of the pump casing about the power end mounting face;
a primer plate with a discharge cutwater tongue, wherein the primer plate is configured to be removably placed in the pump casing about the power end mounting face;
a seal ring configured to be placed along the inner ridge of the pump casing to seal contact points between the primer plate and the pump casing; and
an impeller that is configured to be removably placed in cooperative alignment with the primer plate about the discharge cutwater tongue,
wherein the impeller is configured to engage a power end when coupled to the power end mounting face, and wherein the discharge cutwater tongue is paired to the impeller for a priming operation of the pump apparatus.

14. The pump apparatus of claim 13 , further comprising mounting studs configured to affix the primer plate to the pump casing.

15. The pump apparatus of claim 14 , wherein the mounting studs each comprise a smooth rod, a threaded rod, a partially threaded rod, a screw, or a bolt.

16. The pump apparatus of claim 13 , further comprising mounting studs having a first end and a second end, wherein the first end is affixed to the primer plate and the second end is affixed to the pump casing.

17. The pump apparatus of claim 16 , wherein the mounting studs each comprise a smooth rod, a threaded rod, a partially threaded rod, a screw, or a bolt.

18. The pump apparatus of claim 13 , further comprising a face gasket that is positioned between the primer plate and the pump casing.

19. A pump apparatus comprising:
a pump casing having a power end mounting face;
an inner ridge formed along an interior portion of the pump casing about the power end mounting face;
a primer plate with a cutwater tongue, wherein the primer plate is configured to be removably placed in the pump casing about the power end mounting face;
a seal ring configured to be placed along the inner ridge of the pump casing to seal contact points between the primer plate and the pump casing;
mounting studs having a first end and a second end, wherein the first end is affixed to the primer plate and the second end is affixed to the pump casing; and
an impeller that is configured to be removably placed in cooperative alignment with the primer plate about the cutwater tongue,
wherein the impeller is configured to engage a power end when coupled to the power end mounting face, and wherein the cutwater tongue is paired to the impeller for a priming operation of the pump apparatus.

Assignees

• Itt Mfg Enterprises Llc

Inventors

• Kupp Edward
• Playford Mark

Classifications

• F04D29/426 Primary

  especially adapted for liquid pumps · CPC title

• F05D2230/61

  using limited numbers of standard modules which can be adapted by machining · CPC title

• F04D9/02 Primary

  Self-priming pumps · CPC title

• F05D2260/95

  Preventing corrosion · CPC title

• F04D29/628

  especially adapted for liquid pumps · CPC title