Rotary pump shaft blocking seal

Abstract

One or more techniques and / or systems are disclosed for improving a barrier seal on a rotating shaft of a pump to mitigate fluid leakage along the shaft. The body of the barrier seal may include a one-piece combination sleeve and seal, which may be selectively secured to a pump bracket. Inner and outer slots in the body may be operable to retain a gasket within a packing box of the pump bracket in an internally dynamic sealed and externally static sealed manner. A lubricant port may be provided on the flange of the seal to provide lubricant to the interior of the barrier seal. The interior of the seal may be in fluid communication with the exterior of the seal. Pressurized lubricating fluid may also help mitigate leakage of pumped fluid by pressurizing between the outer static washers, and may provide lubrication to the rotating shaft inside the seal.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This non-provisional patent application claims priority to provisional patent application No. 63 / 410,736, filed on September 28, 2022, which is incorporated herein by reference. Background Art

[0003] Fluid pumps are used to pump fluids in numerous applications, typically using a pumping chamber that transfers fluid between an inlet and an outlet of the pump. A rotary pump has a rotating shaft that powers a rotor to pump fluid from a pumping chamber. The location in the pump where the rotating shaft meets the rotor in the pumping chamber is a source of leakage of the pumped fluid. Various types of sealing devices have been used to mitigate leakage of the pumped fluid along the rotating shaft while allowing the shaft to rotate properly during operation. Summary of the invention

[0004] This Summary is provided to introduce some concepts in a simplified form that are further described in the Detailed Description below. This Summary is not intended to identify key factors or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

[0005] One or more techniques and systems for an improved barrier seal are described herein. The barrier seal may be disposed on a rotating shaft during operation to mitigate leakage of fluid along the shaft. The barrier seal described herein may be a one-piece combination sleeve and seal that may be selectively secured to a pump support. Additionally, one or more internal and external grooves may operably accommodate a gasket, dynamically or statically placed on the shaft, or within a packing or seal box of a pump support. A lubricant port may be disposed on a flange of the gland portion to provide lubricant to the interior of the barrier seal, which may also be fluidly connected to the exterior of the seal. In this manner, for example, a pressurized lubricating fluid may also help mitigate leakage of the pumped fluid by pressurizing between the static gaskets on the outside, and provide lubrication to the rotating shaft on the inside of the seal.

[0006] In an embodiment in which a blocking seal can be used for a stuffing box of a rotating shaft pump to reduce leakage of pumped fluid outside a pumping chamber, a one-piece body may include a proximal end and a distal end. The body may include a sleeve portion disposed at the distal end of the body and a sealing portion disposed at the proximal end of the body. The sleeve portion may include a substantially constant outer diameter configured to be operably fitted in a stuffing box of a target pump. In addition, the sleeve portion may include a consistent inner diameter configured to be operably fitted around the rotating shaft of the pump. In this embodiment, an internal fluid port connects the interior of the sleeve portion to the external fluid of the sleeve portion. In the sleeve portion, an internal groove is disposed around the inner wall at the distal end, and the internal groove is configured to hold a dynamic gasket against the rotating shaft. In addition, an external groove is disposed around the outer wall at the distal end, and the external groove is configured to hold a static gasket against the inner side of the stuffing box. Alternatively, the groove may be disposed on the inner wall of the stuffing box to hold the static gasket on the outer wall of the sleeve portion.

[0007] In this embodiment, the sealing portion may include a flange protruding radially outward from the central longitudinal axis of the body. The sealing portion also includes a seal shoulder disposed distally of the flange. The seal shoulder may include an outer diameter larger than the outer diameter of the sleeve portion, and may include an external groove configured to hold a static gasket against the interior of the stuffing box. Alternatively, the groove may be disposed around the inner wall at the lip opening of the stuffing box to hold a static flat gasket or a lip seal against the outer wall of the seal shoulder, such as at the flange. Additionally, the sealing portion may include an annular sealing lip comprising an outer diameter substantially the same as the seal shoulder. The sealing lip may also include an internal groove configured to hold a dynamic gasket against a rotating shaft.

[0008] To achieve the aforementioned and related purposes, the following description and accompanying drawings set forth certain illustrative aspects and embodiments. These are merely indicative of a few of the various ways in which one or more aspects may be employed. Other aspects, advantages, and novel features of the present disclosure will become apparent from the following detailed description when considered in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1A and Figure 1B An assembly diagram of one embodiment of an example barrier seal is shown.

[0010] Figure 2A and Figure 2B An assembly diagram of one embodiment of an example barrier seal installed in a portion of an example pump is shown.

[0011] Figure 3A and Figure 3B A component diagram illustrating one example implementation in which one or more portions of one or more of the systems and devices described herein may be utilized.

[0012] Figure 4A and Figure 4B A component diagram illustrating one example implementation in which one or more portions of one or more of the systems and devices described herein may be utilized.

[0013] Figure 5A and Figure 5B A component diagram illustrating one example implementation in which one or more portions of one or more of the systems and devices described herein may be utilized.

[0014] Figure 6 A component diagram illustrating an example implementation of a system that utilizes one or more portions of one or more of the systems described herein. DETAILED DESCRIPTION

[0015] The claimed subject matter is now described with reference to the accompanying drawings. Wherein, throughout the text, the same reference numerals are generally used to indicate the same elements. In the following description, for the purpose of explanation, a number of specific details are shown to provide a thorough understanding of the claimed subject matter. However, it may be obvious that the claimed subject matter can also be implemented without these details. In other examples, for the convenience of describing the claimed subject matter, the structure and device are shown in the form of a block diagram.

[0016] On the one hand, a barrier seal can be designed, which includes an integral combination seal and sleeve for a rotary shaft pump, which is installed in a sealing box or stuffing box of the rotary shaft pump to provide a dynamic sleeve and a fluid seal along the shaft. The combination seal and sleeve barrier seal can include a tubular portion. The tubular portion is installed in the stuffing box and has a dynamic seal arranged inside the tubular portion and a static seal arranged outside the tubular portion to provide a fluid seal. The flange portion fixes the barrier seal to the pump support to keep it stationary during operation. The annular lip is located outside the flange portion to provide another position for arranging a dynamic seal along the rotating pump shaft. Alternatively, the dynamic seal at this position can be arranged within the boundaries of the flange, but close to the lubricant inlet. The external lubricant port on the barrier seal allows lubricant to be injected into the interior of the seal, and the internal lubricant port allows lubricant to move from the inside of the barrier seal to the outside. Thereby, the sleeve portion may be provided with lubricant internally and lubricant externally to reduce leakage of the pumped fluid between the barrier seal and the stuffing box wall.

[0017] Figure 1A A component diagram showing an example implementation of an exemplary barrier seal 100 as described herein, Figure 1Bis an alternative embodiment of a barrier seal 200. The example barrier seals 100, 200 include proximal ends 102, 202, respectively. The proximal ends 102, 202 are operably disposed proximate to an engine. The barrier seals 100, 200 are disposed on a pump shaft to which the engine is connected. The barrier seals 100, 200 also include distal ends 104, 204. The distal ends 104, 204 are operably disposed away from the engine (e.g., at a pumping end of the pump, proximate to a pumping chamber). A tubular sleeve portion 106, 206 is disposed at the distal ends 104, 204 and includes an outer diameter that is substantially constant from the proximal ends 102, 202 to the distal ends 104, 204 of the sleeve portions 106, 206. In alternative embodiments, as Figure 1B As shown, the sleeve portion 206 may include a cutout, shown as a step down, flat, and then step up. In some embodiments, the cutout 228 may be implemented as a lubricant reservoir.

[0018] The sleeve portion 106, 206 also includes an internal lubricant port 110, 210 that fluidly connects an interior 116, 216 of the barrier seal 100, 200 with an exterior 118, 218 of the barrier seal 100, 200. Additionally, in the seal 100, a first external gasket groove 112 is disposed around the exterior 118 of the sleeve portion 106. The first external gasket groove 112 is configured to operably hold a static gasket (e.g., an O-ring) in place and abut an inner wall of a stuffing box of a pump bracket in which the first external gasket groove 112 is mounted. As an example, a gasket disposed in the first external gasket groove 112 can be used to reduce leakage of the pumped fluid along the interior of the stuffing box wall. A gasket disposed in the first outer gasket groove 112 may also help keep lubricant in place (eg, under pressure) about the exterior 118 of the sleeve portion 106 , which may also reduce leakage of the pumped fluid along the interior of the stuffing box wall.

[0019] exist Figure 1A and Figure 1B In, and Figure 2A and Figure 2BIn the embodiment of the present invention, a sealing portion 114, 214 is disposed at the proximal end 102, 202 of the barrier seal 100, 200. The sealing portion 114, 214 includes a flange 120, 220 that projects radially outward from the center (e.g., the central longitudinal axis) of the barrier seal 100, 200. In the seal 100, a sealing shoulder 122, 222 is disposed distally of the flange 120, 220. The sealing shoulder 122, 222 has a diameter that is different (e.g., larger) than the diameter 108, 208 of the tubular portion 106, 206. Further, in the seal 100, 200, an annular flange lip 124, 224 is disposed proximal to the flange 120, 220. The annular flange lip 124, 224 includes a diameter that is substantially the same as the sealing shoulder 122, 222.

[0020] like Figure 2A and Figure 2B , an alternative embodiment of an oblique cutaway view of a portion of a pump 288, 290 with a barrier seal 100, 200 installed, respectively. Figure 2A , a second external gasket groove 212 is disposed around the outer portion 118 of the seal shoulder 122 of the sealing portion 114. The second external gasket groove 212 is configured to operably secure a second static gasket 250 (e.g., an O-ring) in place and abut an inner wall 252 of a stuffing box 254 of a pump bracket 256. The second external gasket groove 212 is installed within the inner wall 252. As an example, the second static gasket 250 disposed in the second external gasket groove 212 can be used to reduce leakage of the pumped fluid along the inner wall 252 of the stuffing box. The second static gasket 250 disposed in the second external gasket groove 212 can also help to keep the lubricant in a proper position (e.g., under pressure) on the outer portion 118 of the sleeve portion 106 together with the first static gasket 258 disposed in the first external gasket groove 260. Further, in Figure 2B In the illustrated embodiment, a retaining ring groove 230 may be disposed around the inner wall of the stuffing box 284. The retaining ring groove 230 may be configured to secure in place a retaining ring that may be used to retain another component in the stuffing box.

[0021] In an alternative embodiment, Figure 2A and Figure 2B, a pump 290 includes a bracket 286 having a stuffing box 284 in which an example barrier seal 200 is disposed. In this example embodiment, the bracket 286 includes a gasket groove 282 positioned at a proximal end of the stuffing box 284. The bracket groove 282 is configured to operably receive another seal in the stuffing box, and the configuration enables a gasket 292 (e.g., a flat gasket) to reduce fluid leakage along the stuffing box inner wall 252. The gasket 292 located between the bracket 286 and the flange 220 can also help contain lubricant in place (e.g., under pressure) around the outer portion 118 of the sleeve portion 106.

[0022] like Figure 1A , Figure 1B , Figure 2A and Figure 2B As shown, a first internal gasket groove 126 is disposed around the inner wall 116 of the flange lip 124. The first internal gasket groove 126 is configured to operably retain a first dynamic gasket 262 against a rotating shaft 270 of the pump. Further, the sleeve portion 106, 206 of the barrier seal 100, 200 includes a second internal gasket groove 226. The second internal gasket groove 226 is disposed around the inner wall of the sleeve portion 106, 206 at the distal end 104, 204. The second internal gasket groove 226 is configured to operably retain a second dynamic gasket 268 (e.g., an O-ring) against a rotating shaft 270 of the pump. In this example, the dynamic gaskets 262, 268 are configured to undergo rotation of the pump while remaining in place in their respective internal grooves 126, 226. Further, respective dynamic washers 262 , 268 disposed in interior grooves 126 , 226 can help retain lubricant 272 between inner wall 116 of barrier seal 100 and rotating shaft 270 of the pump while reducing leakage of pumped fluid along shaft 270 , as will be described in greater detail below.

[0023] Additionally, if Figure 1A , Figure 1B , Figure 2A and Figure 2BAs shown, the barrier seal 100, 200 may include a lubricant inlet 240 (e.g., 240a, 240b) disposed in the flange 120, 220 of the sealing portion 114, 214. The lubricant inlet 240 may be configured to selectively receive a fluid pressure fitting 242 (e.g., a grease fitting or connector or a lubricant fitting or connector), such as using a threaded engagement. That is, for example, the lubricant fitting 242 may include external threads, and the lubricant inlet 240 may include internal threads 280, and the lubricant fitting 242 may be selectively threaded into the lubricant inlet 240 so that a lubricant 272 may be injected into the lubricant inlet 240 under pressure (e.g., a grease gun, etc.). In some embodiments, the lubricant inlet 240 may be fluidly connected to an internal lubricant passage 244 disposed in the inner wall 116 , 216 of the barrier seal 100 , 200 between the corresponding internal groove 126 , 226 (eg, and the dynamic gasket 262 , 268 ).

[0024] In this embodiment, the internal lubricant port 110, 210 fluidly connects the internal lubricant passage 244 in the interior 116, 216 of the barrier seal 100, 200 with the external lubricant passage 246 at the exterior of the barrier seal 100, 200. Figure 2A As shown, the external lubricant passage 246 can be formed by the shoulder 122 of the seal portion 114 and a bracket shoulder 282 formed in the packaging box / stuffing box 254 of the pump bracket 256. As another example, in Figure 2B 2, the external lubricant passage 246 may be formed by the cut-outs 128, 228 in the outer walls 118, 218 of the sealing portions 114, 214 and may extend from the shoulder 220 to at least half of the length of the distal end 204 of the sleeve portion 206. As an illustrative example, the lubricant 272 may be injected into the lubricant inlet 240 by connecting a lubricant syringe to the lubricant fitting 242.

[0025] In this example, the injected lubricant 272 can flow into the internal lubricant passage 244 to operably provide lubrication between the rotating pump shaft 270 and the inner wall 116 of the barrier seal 100, 200. Further, in this example, the lubricant 272 can flow through the internal lubricant port 110, 210 to the external lubricant passage 246 to provide lubrication to the outer portion 118 of the barrier seal and the inner wall 252 of the stuffing box 254, 284, and reduce lubricant leakage between the outer portion 118 of the barrier seal and the inner wall 252 of the stuffing box 254, 284. As an example, the lubricant can be operably held in place under pressure, wherein a pressure fitting (as described below) Figure 3A and Figure 3BA fitting 364 is shown) may be installed at the lubricant outlet 248. For example, pressurized lubricant retained between the respective static washers 212, 258 can help reduce leakage of pressurized fluid along the shaft 270.

[0026] In an alternative embodiment, if Figure 3B and Figure 4B As shown, an alternative lubricant inlet 372 may be provided away from the flange 220, in the body of the bracket 286, and fluidly connected to the external lubricant passage 246. The lubricant outlet 248 may also be fluidly connected to the external lubricant passage 246. The inlet 372 may have a plug or a filler plug 374 that selectively fits in the opening, and the outlet may have a valved dispenser plug 264 (e.g., with an indicator) to enable the lubricant to be drained, and / or provide an indication of a pressure loss.

[0027] like Figure 1A and Figure 1B As shown, in some embodiments, the flange 120, 220 may include one or more chamfers 130a, 230a, 130b, 230b. (One or more) chamfers 130a, 230a, 130b, 230b may include a cut-out portion cut from the annular shape of the flange 120, 220 (e.g., cutting off the arc portion of the flange 120, 220), and may include an optional position for the lubricant inlet 240a, 240b, respectively. That is, for example, depending on the way the pump and / or pump bracket is set up, depending on the passability of the port, the user can choose to position the fluid inlet at position 240a or 240b. As an example, a pressure fitting (e.g., 242) can be assembled to one of the port positions 240a, 240b, and a sealing cap can be assembled to another position in the position 240a, 240b. In this way, in this example, a pressurized fluid can be injected into the port 240, and the seal at the other position can reduce leakage at that position. Additionally, as further described below, when mounted to a pump, the chamfers 130a, 230a, 130b, 230b may provide access to the port 240 and may allow for installation of a barrier seal while simultaneously installing a pressurized fitting.

[0028] Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 5A , Figure 5B as well as Figure 6 Component schematics of alternative embodiments of exemplary one-piece combination seals and sleeves are shown. The barrier seals 100 , 200 may be employed in exemplary pumps 300 , 400 . Figure 3A and Figure 3BShown are perspective views of pumps 300 , 400 having barrier seals 100 , 200 , respectively; Figure 4A and Figure 4B sectional views of the pumps 300 , 400 along a diagonal plane (e.g., approximately 45 degrees, along the axis of the lubricant port) are shown, respectively, wherein the barrier seals 100 , 200 are provided; Figure 5A and Figure 5B 3 and 4 respectively show a cross-sectional view of a pump 300, 400 taken along a vertical plane, wherein a barrier seal 100, 200 is provided. Figure 6 As shown, in one embodiment, a flat gasket may be disposed between the bracket 256 of the pump and the flange 120 of the barrier seal 200 .

[0029] like Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 5A , Figure 5B As shown, and continue to refer to Figure 1A , Figure 1B , Figure 2A and Figure 2B , the pump 300, 400 includes a pump bracket 302, 350, 450. The pump bracket 302, 350, 450 accommodates a pump shaft 370, 470, which can be flat or curved, or other geometric configurations selected using sound engineering judgment. The pump 300, 400 may also include a pump bearing assembly 354, 454, a pumping chamber 356, 456, and a pump inlet 360 and a pump outlet 362. Among them, the pump bearing assembly 354, 454 is used to support the rotating shaft 370, 470, and the pumping chamber 356, 456 accommodates a pump wheel 358, 458 for pumping fluid, and the fluid can be pumped into and out of the pump inlet 360 and the pump outlet 362. The grease fitting 242 can be disposed in the lubricant inlet 240, located at the first port location 240a. As described above, for example, alternatively, the grease fitting 242 can be disposed at the second port location 240b. The pressurized cap 364 is disposed on the lubricant outlet 248 and may include an indicator. The indicator displays when the lubricant pressure is in a normal operating state and when the lubricant pressure exceeds a pressure threshold (e.g., below the operating pressure). For example, when the pressure cap indicator indicates that the pressure is below the normal operating pressure, this may indicate that one of the gaskets (e.g., 126, 226, 250, 258, 292) has failed (e.g., cracked, displaced, etc.), and / or indicates that there is not enough lubricant 272 in the barrier seal 100, 200 for the desired operation. Additionally, the pressurized cap 364 may also provide pressure relief when the lubricant in the barrier seal 100, 200 is over-pressurized.

[0030] As shown, the chamfer 130a is provided with a grease fitting 242, which may allow the barrier seal 100 to be installed through the proximal end 102 of the pump bracket 302, such as through the opening of the bearing assembly 354, 454. That is, for example, the cutout defining the chamfer 130a has sufficient clearance from the surface of the flange 120, 220 to allow the grease fitting 242 to pass through the opening of the bearing assembly 354, 454. Additionally, the barrier seal 100, 200 may be selectively fastened to the pump bracket 302 using one or more seal fasteners 264. The one or more seal fasteners 264 pass through a fastener receptacle 266 provided in the flange 120, 220. As an example, the seal fastener 264 may include a bolt that is threaded into a complementary threaded hole in the bracket 302, or may include a bolt that extends from the bracket 302 and is fastened to the surface of the flange 120, 220 using a nut. It is contemplated that other fastening means may be used to provide a compressive force to the distal end 104 of the stuffing box 254, provided they are designed using sound engineering principles.

[0031] As shown, the proximal side 102 of the flange 120, 220 includes a disassembly tool accessory container 168a, b. In some embodiments, the disassembly tool accessory container 168 may include an opening in the surface of the flange 120, 220, the opening being configured to receive a tool (not shown) that assists in removing the barrier seal 100, 200 from the stuffing box 254 of the pump bracket 302. As an example, the disassembly tool accessory container 168 may include one or more threaded holes into which the threaded end of the tool may be threadedly engaged. In this example, when the disassembly tool is engaged with the flange 120, 220, the barrier seal 100, 200 may be pulled out of the stuffing box 254, or otherwise disassembled, such as replacing the barrier seal from a gasket, repairing, or otherwise replacing the barrier seal.

[0032] The word "exemplary" is used herein to mean as an example, instance or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be understood as superior to other aspects or designs. On the contrary, the use of the word exemplary is intended to present concepts in a concrete way. As used in this application, the term "or" is intended to refer to an inclusive "or" rather than an exclusive "or". That is, unless otherwise specified or clearly indicated from the context, "X applies A or B" is intended to refer to any natural inclusive arrangement. That is, if X applies A; X applies B; or A applies A and B at the same time, then "X applies A or B" is satisfied under any of the aforementioned examples. Further, at least one of A and B, etc. generally means A or B or both A and B. In addition, unless otherwise specified or clearly indicated from the context to refer to the singular form, the articles "one" and "an" used in this application and the appended claims can generally be understood to mean "one or more".

[0033] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

[0034] In addition, although the present disclosure has been shown and described for one or more embodiments, other technical personnel in the art will think of equivalent changes and modifications based on reading and understanding this specification and drawings. The present disclosure includes all such modifications and changes and is limited only by the scope of the appended claims. In particular, with respect to the various functions performed by the above-mentioned components (e.g., elements, resources, etc.), unless otherwise specified, the terms used to describe these components are intended to correspond to any component (e.g., functionally equivalent) that performs the specified functions of the components, even if the structure is not equivalent to the disclosed structure that performs the functions in the exemplary embodiments shown herein of the present disclosure. In addition, although the specific features of the present disclosure may be disclosed only for one of several embodiments, such features may be combined with one or more other features of other embodiments, which may be desirable and advantageous for any given or specific application. In addition, with respect to the terms "including", "having", "containing", "with" or their variants used in the specific embodiments or claims, these terms are intended to be included in a manner similar to the term "including".

[0035] Embodiments have been described above. It will be apparent to those skilled in the art that variations and modifications may be introduced into the above methods and apparatus without departing from the overall scope of the present invention. It is intended to include all such modifications and variations as long as they are within the scope of the appended claims or their equivalents.

Claims

1. A barrier seal operably mounted in a stuffing box with a rotating shaft of a rotary shaft pump to mitigate migration of fluid along the shaft, the barrier seal comprising: A one-piece body comprising a proximal end and a distal end and comprising: A sleeve portion, the sleeve portion including the distal end of the body, the sleeve portion comprising: a generally uniform outer diameter configured to operably fit within a stuffing box of a rotary shaft pump; a uniform inner diameter configured to operably fit about an axis of rotation of the pump; an internal fluid port that fluidly connects an interior of the sleeve portion to an exterior of the sleeve portion; an annular internal groove disposed about the inner wall at the distal end, the internal groove being configured to retain a dynamic washer against the rotating shaft; and A sealing portion, the sealing portion including a proximal end of the body, the sealing portion comprising: a flange projecting radially outwardly from a central longitudinal axis of the body, the flange including an outer wall and an inner wall adjacent the rotation axis; a flange port fluidly connecting the outer wall to the inner wall; and An internal lubrication passage is in fluid communication with the flange port. 2 . The seal of claim 1 , the seal portion comprising a seal shoulder disposed on a distal side of the flange, the seal shoulder comprising an outer diameter greater than an outer diameter of the sleeve portion.

3. The seal of claim 2, the sealing portion comprising an annular sealing lip comprising an outer diameter substantially the same as the seal shoulder and an internal groove configured to retain a dynamic gasket against the rotating shaft.

4. The seal of claim 2, said seal shoulder comprising an annular outer groove disposed about said outer wall, said outer groove being configured to retain a static gasket against an interior of said stuffing box.

5. The seal of claim 1, said seal portion comprising an external lubrication passage in fluid communication with said internal fluid port.

6. The seal of claim 1, the sealing portion comprising an annular internal groove disposed about an inner wall proximate the flange at the proximal end, the internal groove configured to retain a dynamic gasket against the rotating shaft.

7. The seal of claim 1, said sleeve portion comprising an annular outer groove disposed about said outer wall at said distal end, said outer groove being configured to retain a static gasket against an interior of said stuffing box.

8. The seal of claim 1, said flange port comprising an inlet and an outlet, each in fluid communication with said internal lubrication passage.

9. A seal according to claim 8, said inlet comprising a one-way lubricated inlet valve and said outlet comprising a pressure cap to indicate a loss of pressure and / or provide pressure relief.

10. The seal according to claim 1, wherein: The flange is configured to be selectively fastened to a pump bracket of the rotary pump.

11. The seal according to claim 1, wherein: The proximal face of the flange includes a removal tool accessory receptacle configured to receive a seal removal tool.

12. A barrier seal device that mitigates fluid migration along a rotating axis of a rotating axis pump, comprising: a one-piece body including a sealing portion at a proximal end, a sleeve portion at a distal end, and an internal fluid port fluidly connecting an interior of the body to an exterior of the body; wherein the sleeve portion includes a generally uniform outer diameter to fit within a stuffing box of the rotating shaft pump, and a uniform inner diameter to permit dynamic rotation of the shaft, the sleeve portion including an annular internal groove disposed about an inner wall at the distal end operable to retain a dynamic gasket against the rotating shaft; and The sealing portion includes a flange protruding radially outward from a central longitudinal axis of the main body, the flange includes an outer surface and an inner wall adjacent to the rotating shaft, and a flange port connecting the outer surface with the inner wall fluid.

13. The device according to claim 12, wherein: The seal includes an internal lubrication passage in fluid communication with the flange port and an inner wall.

14. The seal according to claim 12, wherein: The sealing portion includes a seal shoulder disposed distally of the flange, the seal shoulder including an outer diameter greater than an outer diameter of the sleeve portion and including an outer groove configured to retain a static gasket against an interior of the stuffing box.

15. The seal according to claim 14, wherein: The seal portion includes an annular sealing lip including an outer diameter substantially the same as the seal shoulder and an internal groove configured to retain a dynamic gasket against the rotating shaft.

16. The seal of claim 12, wherein: The seal includes an external lubrication passage in fluid communication with the internal fluid port.

17. The seal of claim 12, wherein: The sealing portion includes an annular internal groove disposed around an inner wall near the flange at the proximal end, the internal groove being configured to retain a dynamic gasket against the rotating shaft.

18. The seal of claim 1, wherein: The sleeve portion includes an annular outer groove disposed around the outer wall at the distal end, the outer groove being configured to retain a static gasket against an interior of the stuffing box.

19. The seal of claim 12, wherein: The flange port includes an inlet and an outlet, each in fluid communication with the internal lubrication passage.

20. A barrier seal operably mounted in a stuffing box through a rotating shaft of a rotary shaft pump to mitigate migration of fluid along the shaft, the barrier seal comprising: A one-piece body, including a proximal end and a distal end, and comprising: A sleeve portion, the sleeve portion including the distal end of the body, the sleeve portion comprising: a generally uniform outer diameter configured to operably fit within a stuffing box of the rotary shaft pump; a uniform inner diameter configured to operably fit about an axis of rotation of the pump; an internal fluid port to fluidly connect the interior of the sleeve portion to the exterior of the sleeve portion; an annular internal groove disposed about the inner wall at the distal end, the internal groove being configured to retain a dynamic washer against the rotating shaft; and A sealing portion, including a proximal end of the body, the sealing portion comprising: a flange projecting radially outwardly from a central longitudinal axis of the body, the flange including an outer wall and an inner wall adjacent the rotation axis; a seal shoulder disposed on a distal side of the flange, the seal shoulder comprising an outer diameter greater than an outer diameter of the sleeve portion; a flange port fluidly connecting the outer wall to the inner wall, the flange port including an inlet and an outlet respectively in fluid communication with the internal lubrication passage; an external lubrication passage in fluid communication with the internal fluid port; and An annular internal groove is disposed about the inner wall proximate the flange at the proximal end, the internal groove being configured to retain a dynamic gasket against the rotating shaft.

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