External cooling water device of mechanical seal for pump

Abstract

The invention discloses a mechanical seal external cooling water device for a pump, and relates to the technical field of pump cooling. Before cooling liquid is fed into the cooling cavity, impurities in the cooling liquid need to be filtered, the situation that the impurities enter the cooling cavity, so that a pump is abraded in the running process is avoided, but the filtering position is prone to blockage due to the fact that the filtered impurities are continuously accumulated, and when the cooling liquid guided into the cooling cavity is filtered, the conical cover is matched with the flow guide cover. And the filtered impurities are guided by the conical cover under the matching of the conical cover and the flow guide cover, are dispersed all around and penetrate through the arc through groove of the filter pipe after being separated from the flow guide limitation of the flow guide cover along with part of the cooling liquid, and are far away from the residue filtering net, so that the phenomenon that the impurities are accumulated due to the fact that the cooling liquid is continuously filtered by the filtering area in the working process is avoided, and the service life of the cooling liquid is prolonged. And when blockage occurs, the liquid pump cannot drive the cooling liquid to be guided into the cooling cavity, so that the mechanical seal of the pump has a problem.

Description

Technical Field

[0001] The invention relates to the technical field of pump cooling, in particular to an external cooling water device for a mechanical seal of a pump. Background Art

[0002] The external cooling water device for pump mechanical seals is an auxiliary system that introduces cooling medium from the outside to cool, lubricate and flush the mechanical seal. It is mainly used in working conditions with high temperature, high pressure, easy-to-crystallize or high-viscosity media to extend the life of the mechanical seal and ensure stable operation of the pump. The cooling water enters the cooling cavity or flushing hole of the mechanical seal through the water inlet pipe and flows near the friction surface of the dynamic and static rings, taking away the heat generated by friction and the heat conducted by the medium, reducing the temperature of the sealing surface. At the same time, the clean cooling water can flush solid particles or crystals near the sealing surface to prevent impurities from entering the friction and causing wear.

[0003] In the process of guiding the coolant by the external cooling water device, the impurities in the coolant need to be filtered before the coolant is sent into the cooling cavity to prevent the impurities from entering the cooling cavity and causing wear of the pump during operation. However, the filter position is prone to blockage due to the continuous accumulation of filtered impurities, which affects the flow and guidance of the coolant. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A pump mechanical seal external cooling water device, comprising:

[0006] A frame, a liquid pump and a liquid tank are fixedly installed on the top of the frame, a heat exchanger is fixedly installed on the top of the frame, a return pipe is fixedly installed at the liquid outlet of the heat exchanger, and a liquid outlet pipe is fixedly installed between the liquid inlet of the liquid pump and the liquid tank;

[0007] A slag collecting mechanism, the slag collecting mechanism is fixedly mounted on the top of the frame;

[0008] A connecting pipe is fixedly installed at the liquid outlet of the liquid pump, a filter tube is fixedly installed at one end of the connecting pipe away from the liquid pump, a threaded pipe is fixedly installed at one end of the filter tube away from the connecting pipe, and a return pipe is fixedly installed at the liquid inlet of the heat exchanger;

[0009] A liquid inlet mechanism, the liquid inlet mechanism being installed at one end of the threaded tube away from the filter tube;

[0010] The outer side of the filter tube is evenly provided with arc grooves at one end away from the connecting tube, and a slag collecting cover is fixedly installed at the arc groove of the filter tube, and a sealing gasket is fixedly installed on the inner wall of the slag collecting cover, and a flow guide cover is fixedly installed on the end of the inner wall of the filter tube close to the connecting tube, and the inner diameter of the flow guide cover gradually decreases in the process of moving away from the connecting tube, and a conical cover is fixedly installed on the end of the inner wall of the filter tube close to the threaded tube, and the outer diameter of the conical cover gradually increases in the process of moving away from the connecting tube, and the outer side of the conical cover is evenly provided with through grooves, and a filter residue net is fixedly installed on the outer side of the conical cover, and the conical cover is positioned On the inner side of the air guide cover, the conical cover cooperates with the air guide cover. When filtering the coolant introduced into the cooling cavity, the filtered impurities are guided by the conical cover under the cooperation of the conical cover and the air guide cover, so that the impurities are diffused to the surroundings after escaping the diversion restriction of the air guide cover along with part of the coolant, and pass through the arc groove of the filter tube, so that the filtered impurities are kept away from the filter residue net, avoiding the accumulation of impurities and blockage due to continuous filtering of the coolant in the filter area during operation, so that the liquid pump cannot drive the coolant to be guided into the cooling cavity, causing problems with the mechanical seal of the pump. An inner gasket is fixedly installed between the air guide cover and the filter tube.

[0011] Preferably, the liquid inlet mechanism includes a fixed tube, one end of the inner wall of the fixed tube is threadedly connected to the outer side of the threaded tube, and the other end of the fixed tube is fixedly installed with a liquid inlet tube, and the end of the liquid inlet tube away from the fixed tube is used to connect the liquid inlet of the pump to be cooled, and the inner wall of the fixed tube close to the liquid inlet tube is fixedly installed with an inner groove disk, the inner wall of the inner groove disk is fixedly installed with a connecting rod, and the inner wall of the fixed tube is fixedly installed with a magnetic ring cover, and the outer side of the connecting rod is fixedly installed with a cone block, which cooperates with the cone block and the ball block. When the coolant flows in the fixed tube, it first impacts the ball block and diffuses around, and then cooperates with the change of the outer diameter of the cone block to guide the flowing coolant to impact the magnetic ring cover, and is magnetically adsorbed by the magnetic ring cover to remove fine metal particles in the coolant, so as to prevent metal particles from entering the pump to be cooled, causing the pump to rub against the metal particles and cause wear during operation.

[0012] Preferably, the cone block is located on the inner side of the magnetic ring cover, and the outer diameter of the cone block gradually increases in the process of approaching the liquid inlet pipe, and the distance between the cone block and the magnetic ring cover gradually decreases in the process of approaching the liquid inlet pipe, and the end of the connecting rod away from the inner groove disk is fixedly installed with a ball block, and the inner wall of the fixed tube is fixedly installed with a slag stop ring, and the slag stop ring is located between the cone block and the inner groove disk, and an annular groove is provided on the side of the slag stop ring close to the cone block, and protrusions are evenly installed at the center position of the slag stop ring close to the cone block. The annular groove and the protrusion of the slag stop ring cooperate to provide a buffer space for the metal residue when removing the metal residue in the coolant to avoid residue accumulation. Without buffer space, small metal particles will block the flow gap and affect the flow of coolant. The protrusion of the slag stop ring fits tightly with the side of the cone block close to the inner groove disk.

[0013] Preferably, the slag collecting mechanism includes a slag collecting barrel, a conducting pipe is fixedly installed on the top of the outer side of the slag collecting barrel, and a return liquid pipe is fixedly installed on the bottom of the outer side of the slag collecting barrel, an inner hole cover is fixedly installed on the inner wall of the slag collecting barrel, one end of the conducting pipe away from the slag collecting barrel is fixedly connected to the inner wall of the slag collecting cover, and one end of the return liquid pipe away from the slag collecting barrel is fixedly connected to the inner wall of the liquid bin, and through holes are evenly opened on the bottom of the inner hole cover, which cooperates with the filter cover through the inner hole cover. After part of the coolant drives the impurities in, the coolant passes through the filter cover through the guiding pressure of the liquid pump and the gravity of the coolant itself, and the impurities are retained in the inner hole cover for collection, so as to avoid impurities clogging the pipeline and perform fixed-point collection, which is convenient for maintenance and cleaning.

[0014] Preferably, the filter cover is fixedly installed on the inner wall of the inner hole cover, and a cylinder cover is fixedly installed on the top of the inner hole cover, and the cylinder cover is tightly fitted with the top of the inner wall of the slag collecting barrel, and a cone cover is fixedly installed on the bottom of the inner wall of the slag collecting barrel, and the cone cover is a cone-shaped cover with a downward depression at the center position, and cooperates with the through-groove barrel through the cone cover to guide the coolant to flow inside the through-groove barrel and gradually accumulate in the through-groove barrel, and cooperates with the filtration of the filter cover to make fine impurities precipitate and accumulate in the through-groove barrel, thereby improving the filtering effect, making the coolant overflow from the through-groove, and being guided back to the liquid tank through the return pipe, and the cone cover is located at the bottom of the slag collecting barrel, and the bottom of the cone cover is fixedly installed with the through-groove barrel, and the bottom of the through-groove barrel is fixedly connected to the bottom of the inner wall of the slag collecting barrel, and through-grooves are evenly opened on the top of the outer side of the through-groove barrel.

[0015] The present invention provides a device for connecting an external cooling water supply to a mechanical seal for a pump. It has the following beneficial effects:

[0016] 1. The pump uses a mechanical seal to connect to an external cooling water device. The cone cover cooperates with the guide cover. When filtering the coolant introduced into the cooling cavity, the filtered impurities are guided by the cone cover under the cooperation of the cone cover and the guide cover. After the impurities escape the diversion restriction of the guide cover along with part of the coolant, they spread to the surroundings and pass through the arc groove of the filter tube, so that the filtered impurities are kept away from the filter residue net, avoiding the accumulation of impurities and blockage caused by continuous filtering of the coolant in the filter area during operation, which makes it impossible for the liquid pump to drive the coolant into the cooling cavity and cause problems with the mechanical seal of the pump.

[0017] Second, the pump uses a mechanical seal to connect to an external cooling water device. The cone block and the ball block cooperate. When the coolant flows in the fixed pipe, it first impacts the ball block and spreads to the surroundings. Then, with the change in the outer diameter of the cone block, the flowing coolant is guided to impact the magnetic ring cover. The magnetic ring cover is used for magnetic adsorption to remove fine metal particles in the coolant, preventing the metal particles from entering the pump that needs to be cooled, causing the pump to rub against the metal particles and cause wear during operation.

[0018] 3. The pump uses a mechanical seal to connect to the external cooling water device. The groove and protrusion of the slag retaining ring cooperate to provide a buffer space for the metal residue when removing the metal residue from the coolant, thus avoiding the accumulation of residue. Without the buffer space, the flow gap will be blocked by fine metal particles, affecting the flow of the coolant.

[0019] 4. The pump uses a mechanical seal to connect to the external cooling water device, which cooperates with the filter cover through the inner hole cover. After part of the coolant brings in impurities, the coolant passes through the filter cover through the guide pressure of the liquid pump and the gravity of the coolant itself, leaving the impurities in the inner hole cover for collection. This prevents impurities from clogging the pipeline and performs fixed-point collection for easy maintenance and cleaning.

[0020] 5. The pump uses a mechanical seal to connect to the cooling water device externally. The cone cover cooperates with the groove barrel to guide the coolant so that it flows inside the groove barrel and gradually accumulates inside the groove barrel. With the filtration of the filter cover, fine impurities are precipitated and accumulated in the groove barrel, which improves the filtration effect and allows the coolant to overflow from the groove and be returned to the liquid tank through the return pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of an external cooling water device for a pump mechanical seal according to the present invention;

[0022] Figure 2 This is a structural side view of an external cooling water device for a pump mechanical seal according to the present invention;

[0023] Figure 3 This is a partial structural diagram of an external cooling water device for a mechanical seal for a pump according to the present invention;

[0024] Figure 4 This is a partial structural side view of an external cooling water device for a mechanical seal for a pump according to the present invention;

[0025] Figure 5 This is a partial structural top view of an external cooling water device for a pump mechanical seal according to the present invention;

[0026] Figure 6 This is a partial structural sectional view of an external cooling water device for a pump mechanical seal according to the present invention;

[0027] Figure 7 Schematic diagram of the structure of the liquid inlet mechanism of the present invention;

[0028] Figure 8 It is a partial structural anatomical diagram of the liquid inlet mechanism of the present invention;

[0029] Figure 9 It is a partial structural dissected side view of the liquid inlet mechanism of the present invention;

[0030] Figure 10 It is a structural schematic diagram of the slag collecting mechanism of the present invention;

[0031] Figure 11 It is a partial structural dissection diagram of the slag collecting mechanism of the present invention.

[0032] In the figure: 1. frame; 2. liquid inlet mechanism; 3. connecting pipe; 4. slag collecting mechanism; 5. liquid pump; 6. liquid tank; 7. return pipe; 8. heat exchanger; 9. return pipe; 10. liquid outlet pipe; 11. filter pipe; 12. slag collecting cover; 13. threaded pipe; 14. inner gasket; 15. flow guide cover; 16. sealing gasket; 17. cone cover; 18. filter residue net; 21. liquid inlet pipe; 22. fixed pipe; 23. magnetic ring cover; 24. inner groove plate; 25. cone block; 26. connecting rod; 27. ball block; 28. slag retaining ring; 41. guide pipe; 42. slag collecting cylinder; 43. liquid return pipe; 44. cylinder cover; 45. inner hole cover; 46. cone cover; 47. through-groove cylinder; 48. filter cover. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] The first embodiment, as Figures 1 to 6 As shown, the present invention provides a technical solution:

[0035] A pump mechanical seal external cooling water device, comprising:

[0036] The frame 1 has a liquid pump 5 and a liquid tank 6 fixedly mounted on the top of the frame 1, and a heat exchanger 8 fixedly mounted on the top of the frame 1. A return pipe 7 is fixedly mounted at the liquid outlet of the heat exchanger 8, and a liquid outlet pipe 10 is fixedly mounted between the liquid inlet of the liquid pump 5 and the liquid tank 6;

[0037] The slag collecting mechanism 4 is fixedly installed on the top of the frame 1;

[0038] A connecting pipe 3 is fixedly installed at the liquid outlet of the liquid pump 5, a filter tube 11 is fixedly installed at one end of the connecting pipe 3 away from the liquid pump 5, a threaded pipe 13 is fixedly installed at one end of the filter tube 11 away from the connecting pipe 3, and a return pipe 9 is fixedly installed at the liquid inlet of the heat exchanger 8;

[0039] The liquid inlet mechanism 2 is installed at one end of the threaded tube 13 away from the filter tube 11;

[0040] Arc grooves are evenly opened on the outer side of the filter tube 11 at one end away from the connecting pipe 3, and a slag collecting cover 12 is fixedly installed at the arc groove of the filter tube 11, and a sealing gasket 16 is fixedly installed on the inner wall of the slag collecting cover 12. A flow guide cover 15 is fixedly installed on the end of the inner wall of the filter tube 11 close to the connecting pipe 3. The inner diameter of the flow guide cover 15 gradually decreases in the process of moving away from the connecting pipe 3. After the coolant is discharged from the liquid outlet of the liquid pump 5, it first enters the connecting pipe 3 and is introduced into the filter tube 11 through the connecting pipe 3. After being introduced into the filter tube 11, the flow guide cover 15 cooperates with the conical cover 17, and utilizes the change in the outer diameter of the conical cover 17 and the change in the inner diameter of the flow guide cover 15 to make the coolant flow to the surface of the conical cover 17 through the guidance of the flow guide cover 15 during the flow process, impact the surface of the conical cover 17, and pass through the fixed outside of the conical cover 17 The installed filter net 18 filters out impurities in the coolant, so that most of the coolant passes through the filter net 18 and the conical cover 17 and is introduced into the liquid inlet mechanism 2 through the threaded pipe 13. A conical cover 17 is fixedly installed on the inner wall of the filter tube 11 near one end of the threaded pipe 13. The outer diameter of the conical cover 17 gradually increases in the process of moving away from the connecting pipe 3, and the outer side of the conical cover 17 is evenly provided with through grooves. The outer side of the conical cover 17 is fixedly installed with a filter net 18, and the conical cover 17 is located on the inner side of the guide cover 15. The impurities filtered out by the filter net 18 and a small part of the coolant flow around along the surface of the conical cover 17 under the drive of the liquid pump 5, and then pass through the arc groove into the slag collecting cover 12, and are connected with the slag collecting mechanism 4 through the slag collecting cover 12 and are introduced into the slag collecting mechanism 4. An inner gasket 14 is fixedly installed between the guide cover 15 and the filter tube 11.

[0041] The second embodiment, based on the first embodiment, see Figures 7 to 9As shown, the liquid inlet mechanism 2 includes a fixed tube 22, one end of the inner wall of the fixed tube 22 is threadedly connected to the outer side of the threaded tube 13, and the other end of the fixed tube 22 is fixedly installed with a liquid inlet pipe 21. The end of the liquid inlet pipe 21 away from the fixed tube 22 is used to connect the liquid inlet of the pump required for cooling. The coolant after filtering out impurities enters the fixed tube 22 through the connection between the threaded tube 13 and the fixed tube 22. After entering the fixed tube 22, the coolant first impacts the ball block 27, and then passes through the ball block 27 and the cone. The block 25 cooperates to guide the coolant flowing in the fixed pipe 22, so that the coolant impacts the magnetic ring cover 23 fixedly connected to the inner wall of the fixed pipe 22, and the small metal debris in the coolant is adsorbed by the magnetic force of the magnetic ring cover 23. An inner groove disk 24 is fixedly installed on the end of the inner wall of the fixed pipe 22 close to the liquid inlet pipe 21, and a connecting rod 26 is fixedly installed on the inner wall of the inner groove disk 24. The magnetic ring cover 23 is fixedly installed on the inner wall of the fixed pipe 22, and the cone block 25 is fixedly installed on the outer side of the connecting rod 26.

[0042] The cone block 25 is located on the inner side of the magnetic ring cover 23, and the outer diameter of the cone block 25 gradually increases in the process of approaching the liquid inlet pipe 21, and the distance between the cone block 25 and the magnetic ring cover 23 gradually decreases in the process of approaching the liquid inlet pipe 21. The connecting rod 26 is fixedly installed with a ball block 27 on the end away from the inner groove disk 24, and a slag stop ring 28 is fixedly installed on the inner wall of the fixed tube 22. The magnetic ring cover 23 cooperates with the slag stop ring 28, and the annular groove of the slag stop ring 28 provides a retention space for metal debris, so that the coolant is discharged through the gap between the protrusions of the slag stop ring 28, passes through the inner groove disk 24 and is introduced into the liquid inlet pipe 21, and is introduced into the cooling cavity through the liquid inlet pipe 21. The slag stop ring 28 is located between the cone block 25 and the inner groove disk 24. The slag stop ring 28 is provided with an annular groove on the side close to the cone block 25, and the slag stop ring 28 is evenly installed with protrusions at the center position of the side close to the cone block 25. The protrusion of the slag stop ring 28 fits tightly with the side of the cone block 25 close to the inner groove disk 24.

[0043] The third embodiment, based on the first and second embodiments, see Figures 10 and 11 As shown, the slag collecting mechanism 4 includes a slag collecting barrel 42, a conducting pipe 41 is fixedly installed on the top of the outer side of the slag collecting barrel 42, and a return liquid pipe 43 is fixedly installed on the bottom of the outer side of the slag collecting barrel 42. The filtered impurities and part of the coolant are driven by the liquid pump 5 to connect the slag collecting barrel 42 and the slag collecting cover 12 through the conducting pipe 41, so that the impurities in the slag collecting cover 12 are introduced into the slag collecting barrel 42 along with the coolant. An inner hole cover 45 is fixedly installed on the inner wall of the slag collecting barrel 42, and the end of the conducting pipe 41 away from the slag collecting barrel 42 is fixedly connected to the inner wall of the slag collecting cover 12, and the end of the return liquid pipe 43 away from the slag collecting barrel 42 is fixedly connected to the inner wall of the liquid bin 6, and through holes are evenly opened on the bottom of the inner hole cover 45.

[0044] The inner wall of the inner hole cover 45 is fixedly installed with a filter cover 48, and the top of the inner hole cover 45 is fixedly installed with a cylinder cover 44, which is tightly fitted with the top of the inner wall of the slag collecting cylinder 42. The bottom of the inner wall of the slag collecting cylinder 42 is fixedly installed with a cone cover 46. The cone cover 46 is a cone-shaped cover with a downward depression in the center. When the pressure of the liquid pump 5 is combined with the gravity of the coolant itself, the impurities and coolant entering the slag collecting cylinder 42 and concentrated in the inner hole cover 45 flow downward, and the coolant passes through the filter cover 48 and the inner hole. The cover 45 reaches the top of the conical cover 46, and the coolant enters the interior of the through-groove cylinder 47 through the guidance of the conical cover 46, and is discharged through the through-groove at the top outside the through-groove cylinder 47, and is returned to the liquid bin 6 again through the return pipe 43. The conical cover 46 is located at the bottom of the slag collecting cylinder 42, and the through-groove cylinder 47 is fixedly installed at the bottom of the conical cover 46. The bottom of the through-groove cylinder 47 is fixedly connected to the bottom of the inner wall of the slag collecting cylinder 42, and the top outside the through-groove cylinder 47 is evenly provided with through-grooves.

[0045] When in use, the liquid inlet mechanism 2 and the return pipe 9 are respectively connected to the liquid inlet and liquid outlet of the cooling cavity of the pump that needs to be cooled. During operation, by starting the liquid pump 5, the liquid pump 5 drives the coolant in the liquid tank 6 into the liquid pump 5 through the liquid outlet pipe 10, and the coolant is introduced into the liquid inlet mechanism 2 through the connecting pipe 3 and the filter pipe 11. When the coolant passes through the filter pipe 11, the impurities in the coolant are filtered. Through the power of the liquid pump 5, the filtered impurities and part of the coolant are introduced into the slag collecting mechanism 4 through the slag collecting cover 12 for collection, and the coolant is introduced into the cooling cavity through the liquid inlet mechanism 2, and the coolant in the flow cavity is pushed out from the liquid outlet and enters the return pipe 9. The coolant is introduced into the heat exchanger 8 through the return pipe 9, and the coolant that absorbs heat is cooled by the heat exchanger 8, and then the coolant is returned to the liquid tank 6 through the return pipe 7.

[0046] After the coolant is discharged from the liquid outlet of the liquid pump 5, it first enters the connecting pipe 3 and is introduced into the filter tube 11 through the connecting pipe 3. After being introduced into the filter tube 11, the coolant is guided by the guide cover 15 and the conical cover 17. The outer diameter change of the conical cover 17 and the inner diameter change of the guide cover 15 are used to make the coolant flow to the surface of the conical cover 17 through the guidance of the guide cover 15 during the flow process, impact the surface of the conical cover 17, and filter out impurities in the coolant through the filter residue net 18 fixedly installed on the outside of the conical cover 17. Most of the coolant passes through the filter residue net 18 and the conical cover 17 and is introduced into the liquid inlet mechanism 2 through the threaded pipe 13. The impurities filtered out by the filter residue net 18 and a small part of the coolant flow around along the surface of the conical cover 17 under the drive of the liquid pump 5, and then pass through the arc groove into the slag collecting cover 12, and are connected with the slag collecting mechanism 4 through the slag collecting cover 12 and introduced into the slag collecting mechanism 4.

[0047] In the liquid inlet mechanism 2, the coolant after filtering out impurities enters the fixed tube 22 through the connection between the threaded tube 13 and the fixed tube 22. After entering the fixed tube 22, the coolant first impacts the ball block 27, and the ball block 27 cooperates with the cone block 25 to guide the coolant flowing in the fixed tube 22, so that the coolant impacts the magnetic ring cover 23 fixedly connected to the inner wall of the fixed tube 22. The magnetic force of the magnetic ring cover 23 adsorbs the fine metal debris in the coolant. At the same time, the magnetic ring cover 23 cooperates with the slag stop ring 28, and the annular groove of the slag stop ring 28 provides a retention space for the metal debris, so that the coolant is discharged through the gap between the protrusions of the slag stop ring 28, passes through the inner groove plate 24, and is introduced into the liquid inlet pipe 21, and is introduced into the cooling cavity through the liquid inlet pipe 21.

[0048] In the slag collecting mechanism 4, the filtered impurities and part of the coolant are driven by the liquid pump 5 and connected to the slag collecting barrel 42 and the slag collecting cover 12 through the conducting pipe 41, so that the impurities in the slag collecting cover 12 are introduced into the slag collecting barrel 42 along with the coolant. The pressure delivered by the liquid pump 5 cooperates with the gravity of the coolant itself, so that the impurities and coolant entering the slag collecting barrel 42 and concentrated in the inner hole cover 45 flow downward, and the coolant passes through the filter cover 48 and the inner hole cover 45 to reach the top of the cone cover 46. The coolant is guided by the cone cover 46 to enter the interior of the through-groove barrel 47, and is discharged through the through-groove at the top outer side of the through-groove barrel 47. The coolant is returned to the liquid tank 6 again through the return pipe 43.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pump mechanical seal external cooling water device, characterized in that: include: A frame (1), a liquid pump (5) and a liquid tank (6) are fixedly installed on the top of the frame (1), a heat exchanger (8) is fixedly installed on the top of the frame (1), a return pipe (7) is fixedly installed at the liquid outlet of the heat exchanger (8), and a liquid outlet pipe (10) is fixedly installed between the liquid inlet of the liquid pump (5) and the liquid tank (6); A slag collecting mechanism (4), wherein the slag collecting mechanism (4) is fixedly mounted on the top of the frame (1); A connecting pipe (3) is fixedly mounted at the liquid outlet of the liquid pump (5); a filter pipe (11) is fixedly mounted at one end of the connecting pipe (3) away from the liquid pump (5); a threaded pipe (13) is fixedly mounted at one end of the filter pipe (11) away from the connecting pipe (3); and a return pipe (9) is fixedly mounted at the liquid inlet of the heat exchanger (8); A liquid inlet mechanism (2), the liquid inlet mechanism (2) being mounted on an end of the threaded tube (13) away from the filter tube (11); The end of the outer side of the filter tube (11) away from the connecting tube (3) is uniformly provided with arc grooves, and a slag collecting cover (12) is fixedly installed at the arc groove of the filter tube (11), and a sealing gasket (16) is fixedly installed on the inner wall of the slag collecting cover (12). A flow guide cover (15) is fixedly installed on the end of the inner wall of the filter tube (11) close to the connecting tube (3), and the inner diameter of the flow guide cover (15) gradually decreases in the process of moving away from the connecting tube (3). ) A conical cover (17) is fixedly installed on one end of the inner wall close to the threaded tube (13), the outer diameter of the conical cover (17) gradually increases in the process of moving away from the connecting pipe (3), and through grooves are evenly opened on the outer side of the conical cover (17), a filter residue net (18) is fixedly installed on the outer side of the conical cover (17), and the conical cover (17) is located on the inner side of the guide cover (15), and an inner gasket (14) is fixedly installed between the guide cover (15) and the filter tube (11).

2. The external cooling water device for a pump mechanical seal according to claim 1, characterized in that: The liquid inlet mechanism (2) comprises a fixed tube (22), one end of the inner wall of the fixed tube (22) is threadedly connected to the outer side of the threaded tube (13), and the other end of the fixed tube (22) is fixedly mounted with a liquid inlet tube (21), and the end of the liquid inlet tube (21) away from the fixed tube (22) is used to connect to the liquid inlet of a pump to be cooled.

3. The external cooling water device for a pump mechanical seal according to claim 2, characterized in that: An inner groove disc (24) is fixedly mounted on one end of the inner wall of the fixed tube (22) close to the liquid inlet tube (21), a connecting rod (26) is fixedly mounted on the inner wall of the inner groove disc (24), a magnetic ring cover (23) is fixedly mounted on the inner wall of the fixed tube (22), and a cone block (25) is fixedly mounted on the outer side of the connecting rod (26).

4. The external cooling water device for a pump mechanical seal according to claim 3, characterized in that: The conical block (25) is located on the inner side of the magnetic ring cover (23), and the outer diameter of the conical block (25) gradually increases in the process of approaching the liquid inlet pipe (21), and the distance between the conical block (25) and the magnetic ring cover (23) gradually decreases in the process of approaching the liquid inlet pipe (21).

5. The external cooling water device for a pump mechanical seal according to claim 3, characterized in that: A ball block (27) is fixedly mounted on one end of the connecting rod (26) away from the inner groove disc (24), and a slag stop ring (28) is fixedly mounted on the inner wall of the fixed tube (22). The slag stop ring (28) is located between the cone block (25) and the inner groove disc (24).

6. The external cooling water device for a pump mechanical seal according to claim 5, characterized in that: A ring groove is provided on the side of the slag stop ring (28) close to the cone block (25), and protrusions are evenly installed at the center position of the side of the slag stop ring (28) close to the cone block (25), and the protrusions of the slag stop ring (28) are tightly fitted with the side of the cone block (25) close to the inner groove plate (24).

7. The external cooling water device for a pump mechanical seal according to claim 1, characterized in that: The slag collecting mechanism (4) comprises a slag collecting barrel (42), a conducting pipe (41) is fixedly mounted on the top of the outer side of the slag collecting barrel (42), a liquid return pipe (43) is fixedly mounted on the bottom of the outer side of the slag collecting barrel (42), and an inner hole cover (45) is fixedly mounted on the inner wall of the slag collecting barrel (42).

8. The external cooling water device for a pump mechanical seal according to claim 7, characterized in that: One end of the conducting pipe (41) away from the slag collecting barrel (42) is fixedly connected to the inner wall of the slag collecting cover (12), one end of the liquid return pipe (43) away from the slag collecting barrel (42) is fixedly connected to the inner wall of the liquid bin (6), and the bottom of the inner hole cover (45) is evenly provided with through holes.

9. The external cooling water device for a pump mechanical seal according to claim 7, characterized in that: A filter cover (48) is fixedly mounted on the inner wall of the inner hole cover (45), and a cylinder cover (44) is fixedly mounted on the top of the inner hole cover (45). The cylinder cover (44) is tightly fitted with the top of the inner wall of the slag collecting cylinder (42), and a cone cover (46) is fixedly mounted on the bottom of the inner wall of the slag collecting cylinder (42).

10. The external cooling water device for a pump mechanical seal according to claim 9, characterized in that: The cone cover (46) is a cone cover with a downward depression at the center, and the cone cover (46) is located at the bottom of the slag collecting barrel (42). A through groove barrel (47) is fixedly installed at the bottom of the cone cover (46), and the bottom of the through groove barrel (47) is fixedly connected to the bottom of the inner wall of the slag collecting barrel (42), and through grooves are evenly opened on the top of the outer side of the through groove barrel (47).

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