Borehole Pump, Installation Procedure And Replacement Procedure

Abstract

A borehole pump including an eccentric screw pump with at least one stator and at least one rotor. The eccentric screw pump has, in its upper end region, in each case an upper sealing arrangement and, in its lower end region, in each case a lower sealing arrangement. The borehole pump includes a receiving housing having a lower sealing region and at least two upper sealing regions, wherein the eccentric screw pump is arranged in the receiving housing such that the lower sealing arrangement of the eccentric screw pump is assigned in a form- and/or force-fitting manner to the lower sealing region of the receiving housing and such that the upper sealing arrangement of the eccentric screw pump is assigned in a form- and/or force-fitting manner to one of the at least two upper sealing regions of the receiving housing. An installation procedure for installation at a lower end of a riser pipe and a replacement procedure for replacing a borehole pump arranged at a lower end of a rise pipe are also disclosed.

1 . A borehole pump comprising,
 an eccentric screw pump having at least one stator and at least one rotor;   wherein the eccentric screw pump has, in its upper end region, in each case an upper sealing arrangement;   wherein the eccentric screw pump has, in its lower end region, in each case a lower sealing arrangement;   a receiving housings having a lower sealing region and at least two upper sealing regions;   wherein the eccentric screw pump is arranged in the receiving housing such that the lower sealing arrangement of the eccentric screw pump is assigned in a form- and/or force-fitting manner to the lower sealing region of the receiving housing and such that the upper sealing arrangement of the eccentric screw pump is assigned in a form- and/or force-fitting manner to one of the at least two upper sealing regions of the receiving housing.   
     
     
         2 . The borehole pump according to  claim 1 , wherein the at least two upper sealing regions of the receiving housing are in each case at a defined distance from the lower sealing region, which is distinguished from one another. 
     
     
         3 . The borehole pump according to  claim 1 , wherein the at least two upper sealing regions of the receiving housing are configured identically at least in part and in each case include a contact surface for an upper sealing arrangement that is arranged in the upper end region of the eccentric screw pump. 
     
     
         4 . The borehole pump according to  claim 3 , wherein the upper sealing arrangement of the eccentric screw pump is a lamellar elastomer sealing, such that a form- and/or force-fitting operative connection exists between the lamellar elastomer sealing and one of the at least two upper sealing regions of the receiving housing. 
     
     
         5 . The borehole pump according to  claim 1 , wherein the receiving housing is arranged and fastened at a lower end of the riser pipe. 
     
     
         6 . The borehole pump according to  claim 1 , wherein the stator of the eccentric screw pump toward the top includes an extension, in particular an extension through a pipe, such that the upper sealing arrangement of the eccentric screw pump is arranged at an upper end region of the extension. 
     
     
         7 . The borehole pump according to  claim 1 , wherein the lower sealing arrangement of the eccentric screw pump includes at least one sealing elements and first anchoring elements and such that the lower sealing region of the receiving housing includes a contact surface for the at least one sealing element arranged in the lower end region of the eccentric screw pump, as well as second anchoring elements, such that a form- and force-fitting operative connection is established between the first anchoring elements and the second anchoring elements. 
     
     
         8 . The borehole pump according to  claim 7 , wherein the sealing element of the lower sealing arrangement of the eccentric screw pump is a lamellar elastomer sealing and such that the first anchoring elements are protruding hooks and such that the second anchoring elements are recesses, into which the first anchoring elements engage. 
     
     
         9 . The borehole pump according to  claim 1 , wherein the eccentric screw pump is replaceable. 
     
     
         10 . The borehole pump according to  claim 1 , wherein the borehole pump can be equipped and operated with various eccentric screw pumps of various stator lengths. 
     
     
         11 . A procedure for installing a borehole pump at a lower end of a riser pipe,
 said borehole pump comprising an eccentric screw pump with an upper sealing arrangement at an upper end region and a lower sealing arrangement at a lower end region, and a receiving housings having a lower sealing region and at least two upper sealing regions;   such that the eccentric screw pump is arranged between the lower sealing region of the receiving housing and one of the at least two upper sealing regions of the receiving housing;   said installation including the following procedural steps:   installation of the receiving housing at the upper end of the riser pipe;   insertion of the eccentric screw pump with an upper sealing arrangement and a lower sealing arrangement through the riser pipe; and   sealing arrangement of the eccentric screw pump inside the receiving housing between the lower sealing region and one of the at least two upper sealing regions.   
     
     
         12 . A procedure for replacing a borehole pump arranged at a lower end of a riser pipe,
 said borehole pump comprising an eccentric screw pump with an upper sealing arrangement at an upper end region and a lower sealing arrangement at a lower end region, and a receiving housing having a lower sealing region and at least two upper sealing regions;   such that the eccentric screw pump is arranged between the lower sealing region of the receiving housing and one of the at least two upper sealing regions of the receiving housing;   the replacement including the following procedural steps:   de-installation of the eccentric screw pump from the receiving housing of the borehole pump;   removal of the eccentric screw pump through the riser pipe;   insertion of a new eccentric screw pump with an upper sealing arrangement and a lower sealing arrangement through the riser pipe; and   sealing arrangement of the new eccentric screw pump inside the receiving housing between the lower sealing region and one of the at least two upper sealing regions.   
     
     
         13 . The borehole pump according to  claim 2 , wherein the at least two upper sealing regions of the receiving housing are configured identically at least in part and in each case include a contact surface for an upper sealing arrangement that is arranged in the upper end region of the eccentric screw pump.