CN219993919U

CN219993919U - Blending tank motor gear pump with iron filter arranged in front of pump

Info

Publication number: CN219993919U
Application number: CN202321337888.9U
Authority: CN
Inventors: 赵飞; 赵小军
Original assignee: Zhejiang Model Technology Co ltd
Current assignee: Zhejiang Model Technology Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-11-10
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses a blending tank motor gear pump with an iron filter arranged in front of a pump, which comprises a motor gear pump, wherein the oil inlet end of the motor gear pump is connected with an oil inlet pipe II; according to the utility model, the effect of continuously filtering impurities in the liquid for the motor gear pump by the first filter can be effectively utilized, the phenomenon that impurities and particulate matters in the liquid enter the motor gear pump to cause blocking or damage of parts is avoided, when the first filter needs to be cleaned and maintained after long-time operation, the second filter can be timely switched to continuously filter the impurities in the liquid, and after the first filter is removed, the normal operation of the motor gear pump is not influenced, so that the work of subsequent equipment is not influenced.

Description

Blending tank motor gear pump with iron filter arranged in front of pump

Technical Field

The utility model relates to the technical field of motor gear pump filters, in particular to a blending tank motor gear pump with an iron filter arranged in front of the pump.

Background

Gear pumps are rotary pumps that rely on the change and movement of working volume created between a pump cylinder and an intermeshing gear to deliver or pressurize a liquid.

When the blending tank is used, the motor gear pump is required to convey liquid into the blending tank, and in order to avoid the influence of impurities in the liquid on internal components in the gear pump, a filter is required to be additionally arranged on a liquid inlet front pipeline of the gear pump, so that the effect of filtering impurities in the liquid is achieved.

The Chinese published patent CN218913151U mentions a gear pump capable of filtering liquid, and the design scheme is as follows: the filter screen is installed in the installation pipe through the slide pipe, liquid to be transported is filtered, large-particle impurities are taken out, gear jamming is avoided, abrasion of gears is reduced, the frequency of equipment maintenance and the probability of repairing or replacing equipment parts are reduced, the service life of the equipment parts is prolonged, and the locating strip is convenient for installing the filter screen. According to the design scheme, the filtering structure is arranged in front of the gear pump, the effect of filtering liquid before entering the gear pump is achieved, the mode achieves the claimed technical effect, but when specific simulation is used, the scheme is found to have a certain technical problem, because the filtering structure and the gear pump are directly connected, when the filtering structure needs to be cleaned after long-time use, the operation of the gear pump is required to be stopped to detach the filtering structure for cleaning, the normal operation efficiency of the gear pump is affected by the mode, after the gear pump stops operating, the equipment connected with the liquid outlet end of the gear pump is required to be stopped, and the operation efficiency of the whole flow is affected.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a technical scheme for solving the problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the motor gear pump comprises a motor gear pump, wherein an oil inlet end of the motor gear pump is connected with an oil inlet pipe II, an oil inlet end of the oil inlet pipe II is connected with a filter I in a sealing way through a sealing sleeve I, an oil inlet end of the filter I is connected with the oil inlet pipe I in a sealing way through the sealing sleeve I, the filter I comprises a butt joint barrel and a butt joint cover, and a primary filter screen and a secondary filter screen are arranged in the butt joint barrel; the bottom of the body of the oil inlet pipe II is also connected with a flow guide pipe, two ends of the flow guide pipe are respectively connected with two ends of the oil inlet pipe II, and the middle section of the body of the flow guide pipe is connected with a filter II in a sealing way through a sealing sleeve II.

As a further scheme of the utility model: the sealing device is characterized in that a sealing groove I is formed in one side, close to the oil inlet pipe II, of the oil inlet pipe I, one end, close to the oil inlet pipe II, of the oil inlet pipe I is connected with a sealing sleeve I in a threaded mode, and a sealing ring II is integrally formed in one side, close to the filter I, of the sealing sleeve I.

As a further scheme of the utility model: the valve I is arranged on the pipe body of the oil inlet pipe I, the valve II is arranged on the pipe body of the oil inlet pipe II, and the valve III and the valve IV are respectively arranged at the positions, close to the two ends of the filter II, on the pipe body of the flow guide pipe.

As a further scheme of the utility model: the inner wall of the butt joint barrel is provided with a thread groove, a primary filter screen and a secondary filter screen are arranged in the thread groove, and the mesh aperture of the primary filter screen is larger than that of the secondary filter screen.

As a further scheme of the utility model: the oil outlet end of the butt joint barrel and the oil inlet end of the butt joint cover are uniformly and integrally formed with a butt joint head, an annular sealing groove II is formed in one side of the top of the butt joint head, and an arc-shaped sealing ring I is integrally formed in the other side of the top of the butt joint head.

As a further scheme of the utility model: the butt joint section of thick bamboo is the annular and has offered seal groove three near one side of butt joint cover, one side of butt joint cover near the butt joint section of thick bamboo is annular integrated into one piece and has seal ring three, the butt joint section of thick bamboo with the butt joint cover is in the same place through seal ring three and seal groove three seal butt joint and is fixed through fastening bolt.

As a further scheme of the utility model: the inner walls of the first sealing groove, the second sealing groove and the third sealing groove are respectively provided with a layer of sealing rubber sheet, the first sealing groove is matched with the first sealing ring and is in tight butt joint, the second sealing groove is matched with the second sealing ring and is in tight butt joint, and the third sealing groove is matched with the third sealing ring and is in tight butt joint.

As a further scheme of the utility model: the structure of the second filter is the same as that of the first filter, two ends of the second filter are in sealing connection with the flow guide pipe through the second sealing sleeve, the flow guide pipe is provided with two sections, one section is connected with one end of the second filter, and the other section is connected with the other end of the second filter.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the designed structures of the first oil inlet end, the second oil inlet pipe, the flow guide pipe, the first filter, the filter and the like, the filter first can be effectively utilized to continuously provide the impurity filtering effect in the liquid for the motor gear pump, the phenomenon that impurities and particulate matters in the liquid enter the inside of the motor gear pump to cause the blocking or damage of parts is avoided, the filter first can be timely switched to the filter second to continuously filter the impurities when the filter first needs to be cleaned and maintained after long-time operation, the normal operation of the motor gear pump is not influenced after the filter first is removed, so that the operation of subsequent equipment is not influenced, the operation of the motor gear pump is not stopped when the filter first needs to be cleaned and maintained is realized, the operation efficiency of the motor gear pump is ensured, and the operation method is simple and the replacement is convenient and quick when the filter first or the filter second needs to be cleaned and maintained.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional front view of a first filter of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2 according to the present utility model;

FIG. 4 is a schematic view of a front split structure of a first filter of the present utility model;

figure 5 is a schematic perspective view of a first sealing sleeve according to the utility model.

Reference numerals and names in the drawings are as follows:

1. a motor gear pump; 2. an oil inlet pipe II; 201. an oil inlet pipe I; 202. a first seal groove; 3. a first filter; 301. a butt joint barrel; 3011. sealing grooves III; 302. a butt joint cover; 3021. a third sealing ring; 4. a second valve; 5. a valve I; 6. a first sealing sleeve; 601. a second sealing ring; 7. a flow guiding pipe; 8. a third valve; 9. a valve IV; 10. a second filter; 11. a second sealing sleeve; 12. butt joint; 1201. a first sealing ring; 13. sealing grooves II; 14. a secondary filter screen; 15. a primary filter screen; 16. a thread groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a blending tank motor gear pump with an iron filter is additionally arranged in front of a pump, the blending tank motor gear pump comprises a motor gear pump 1, an oil inlet pipe 2 is connected to an oil inlet end of the motor gear pump 1, a filter 3 is connected to an oil inlet end of the oil inlet pipe 2 through a sealing sleeve 6 in a sealing manner, an oil inlet pipe 201 is connected to an oil inlet end of the filter 3 through a sealing sleeve 6 in a sealing manner, the filter 3 comprises a butting cylinder 301 and a butting cover 302, a primary filter screen 15 and a secondary filter screen 14 are arranged in the butting cylinder 301, a thread groove 16 is formed in the inner wall of the butting cylinder 301, the primary filter screen 15 and the secondary filter screen 14 are arranged in the thread groove 16, the mesh aperture of the primary filter screen 15 is larger than the mesh aperture of the secondary filter screen 14, and through arranging two filter screens in the butting cylinder 301, the aperture of the primary filter screen 15 which is firstly contacted with liquid is larger than the secondary filter screen 14 which is contacted with liquid, thus the effects of filtering large-particle substances by the primary filter screen 15 firstly and filtering small impurities by the secondary filter screen 14 are filtered, the effect of the two filter screens is realized, more thorough filtering effects are realized, and the two filter effect of filtering mode is convenient to detach and the two filter screens 301 are connected with the filter screens through threads; the bottom of the body of the oil inlet pipe II 2 is also connected with a flow guide pipe 7, two ends of the flow guide pipe 7 are respectively connected with two ends of the oil inlet pipe II 2, and the middle section of the body of the flow guide pipe 7 is connected with a filter II 10 in a sealing way through a sealing sleeve II 11.

In the embodiment, a sealing groove I202 is formed on one side, close to each other, of the oil inlet pipe I201 and the oil inlet pipe II 2, one end, close to each other, of the oil inlet pipe I201 and the oil inlet pipe II 2 is connected with a sealing sleeve I6 through threads, and a sealing ring II 601 is integrally formed on one side, close to the filter I3, of the sealing sleeve I6; the oil outlet end of the butt joint cylinder 301 and the oil inlet end of the butt joint cover 302 are integrally formed with a butt joint 12, one side of the top of the butt joint 12 is provided with an annular second sealing groove 13, the other side of the top of the butt joint 12 is integrally formed with an arc-shaped first sealing ring 1201, the first sealing groove 202 is matched with the first sealing ring 1201 and is tightly abutted, the second sealing groove 13 is matched with the second sealing ring 601 and is tightly abutted, and the inner walls of the first sealing groove 202 and the second sealing groove 13 are respectively provided with a layer of sealing rubber sheet.

Specifically, through the butt joint 12 on the butt joint section of thick bamboo 301 and the butt joint of advance oil pipe two 2, the butt joint 12 on the butt joint cover 302 and advance oil pipe one 201's butt joint, the inseparable butt joint of cooperation seal groove one 202 and sealing ring one 1201, the inseparable butt joint of seal groove two 13 and sealing ring two 601, and then can realize the good leakproofness of whole filter one 3, and guaranteed the process convenience of butt joint dismantlement, made things convenient for the use.

In this embodiment, the first valve 5 is installed on the first pipe body of the first oil inlet pipe 201, the second valve 4 is installed on the second pipe body of the second oil inlet pipe 2, and the third valve 8 and the fourth valve 9 are installed on the second pipe body of the flow guide pipe 7 and near the two ends of the second filter 10 respectively.

Specifically, the first valve 5 is matched with the second valve 4, so that liquid entering the first filter 3 can be blocked, and the third valve 8 and the fourth valve 9 can be used for blocking liquid entering the second filter 10.

In the embodiment, a third sealing groove 3011 is formed in an annular shape on one side of the docking cylinder 301 close to the docking cover 302, a third sealing ring 3021 is formed in an annular shape on one side of the docking cover 302 close to the docking cylinder 301, and the docking cylinder 301 and the docking cover 302 are in sealing butt joint with the third sealing groove 3011 through the third sealing ring 3021 and are fixed through fastening bolts; the inner wall of seal groove three 3011 is provided with one deck sealing rubber piece, and seal groove three 3011 and seal ring three 3021 adaptation and sealed butt joint.

Specifically, the first filter 3 is split into the docking cylinder 301 and the docking cover 302, and the docking cylinder 301 and the docking cover 302 are in sealing docking with the third sealing ring 3021 through the third sealing groove 3011, so that the effect of conveniently taking out and maintaining the internal components of the docking cylinder 301 is achieved, and the docking cylinder 301 and the docking cover 302 are fixed through bolts, so that the disassembly and the fastening are facilitated, and the tightness is guaranteed.

In this embodiment, the structure of the second filter 10 is the same as that of the first filter 3, and two ends of the second filter 10 are respectively connected with the flow guiding tube 7 in a sealing manner through the second sealing sleeve 11, the flow guiding tube 7 has two sections, one section is connected with one end of the second filter 10, and the other section is connected with the other end of the second filter 10.

Specifically, through designing filter two 10, played the effect of temporarily carrying out the filtration to impurity in the liquid, and filter two 10's structure and mounting means are the same with filter one 3, can adopt filter one 3's installation, dismantlement and maintenance mode to be applicable to in filter two 10 to promoted the suitability of whole device.

When the filter I3 is used for filtering impurities for a long time and cleaning and maintenance are needed, a worker firstly opens the valve III 8 and the valve IV 9, then closes the valve I4 and the valve II 5, and then the flow direction of the liquid changes, so that the liquid enters the guide pipe 7 from the oil inlet pipe I201 and continuously passes through the filter II 10 to filter the impurities in the liquid, at the moment, the filter I3 has no liquid flow, namely the sealing sleeve I6 connected at the two ends of the filter I3 can be rotated firstly, so that the sealing ring II 601 is separated from the sealing groove II 13, the sealing ring II 601 is not connected with the filter I3 in a threaded manner, then the whole filter I3 is pulled to one side, one end of the filter I3 is separated from the oil inlet pipe II 2 (or the oil inlet pipe I201), even if the butt joint 12 is separated from the oil inlet pipe II 2 (or the oil inlet pipe I201), the sealing ring I1201 is separated from the sealing groove I202, then the first filter 3 is removed from the space between the oil inlet pipe II 2 and the oil inlet pipe I201, at the moment, the first filter 3 can be disassembled by using a tool to separate the first filter 3 into the butt joint cylinder 301 and the butt joint cover 302, finally the first filter screen 15 and the second filter screen 14 can be taken out from the butt joint cylinder 301 and cleaned, the whole first filter 3 can be reloaded between the oil inlet pipe II 2 and the oil inlet pipe I201 after being cleaned and maintained, then the valve I5 and the valve II 4 are opened, the valve III 8 and the valve IV 9 are closed, so that liquid flows through the first filter 3 again and enters the oil inlet pipe II 2, and finally is conveyed to the motor gear pump 1;

when the first filter 3 is cleaned and maintained, the second filter 10 can filter liquid, so that the continuous operation of the motor gear pump 1 is ensured, the whole motor gear pump 1 can not be stopped because the first filter 3 is cleaned, and when the first filter 3 filters the liquid, a worker can clean and maintain the second filter 10, so that the next time the first filter 3 is cleaned, the second filter 10 can be conveniently used for a place, the structure of the second filter 10 is the same as that of the first filter 3, and the disassembly and installation modes of the second filter 10 are the same as those of the first filter 3, so that repeated description is omitted.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The motor gear pump of the blending tank with the iron filter is additionally arranged in front of the pump and comprises a motor gear pump (1), and is characterized in that an oil inlet pipe II (2) is connected to an oil inlet end of the motor gear pump (1), a filter I (3) is connected to an oil inlet end of the oil inlet pipe II (2) in a sealing manner through a sealing sleeve I (6), an oil inlet pipe I (201) is connected to an oil inlet end of the filter I (3) in a sealing manner through the sealing sleeve I (6), the filter I (3) comprises a butt joint barrel (301) and a butt joint cover (302), and a primary filter screen (15) and a secondary filter screen (14) are arranged in the butt joint barrel (301);

the bottom of the pipe body of the oil inlet pipe II (2) is also connected with a flow guide pipe (7), two ends of the flow guide pipe (7) are respectively connected with two ends of the oil inlet pipe II (2), and the middle section of the pipe body of the flow guide pipe (7) is hermetically connected with a filter II (10) through a sealing sleeve II (11);

one side of the first oil inlet pipe (201) and one side of the second oil inlet pipe (2) close to each other are respectively provided with a first sealing groove (202), one end of the first oil inlet pipe (201) and one end of the second oil inlet pipe (2) close to each other are respectively connected with a first sealing sleeve (6) through threads, and one side of the first sealing sleeve (6) close to the first filter (3) is integrally provided with a second sealing ring (601);

the oil inlet pipe is characterized in that a valve I (5) is arranged on the pipe body of the oil inlet pipe I (201), a valve II (4) is arranged on the pipe body of the oil inlet pipe II (2), and a valve III (8) and a valve IV (9) are respectively arranged on the pipe body of the guide pipe (7) and close to the two ends of the filter II (10).

2. The blending tank motor gear pump with the iron filter added in front of the pump according to claim 1, characterized in that a thread groove (16) is formed on the inner wall of the butt joint barrel (301), a primary filter screen (15) and a secondary filter screen (14) are installed in the thread groove (16), and the mesh aperture of the primary filter screen (15) is larger than that of the secondary filter screen (14).

3. The blending tank motor gear pump with the iron filter additionally arranged in front of the pump according to claim 1, wherein an oil outlet end of the butt joint barrel (301) and an oil inlet end of the butt joint cover (302) are integrally formed with a butt joint (12), one side of the top of the butt joint (12) is provided with a second annular sealing groove (13), and the other side of the top of the butt joint (12) is integrally formed with a first arc sealing ring (1201).

4. The blending tank motor gear pump with the iron filter additionally arranged in front of the pump according to claim 1, wherein a sealing groove III (3011) is formed on one side of the butt joint barrel (301) close to the butt joint cover (302) in an annular mode, a sealing ring III (3021) is formed on one side of the butt joint cover (302) close to the butt joint barrel (301) in an annular mode, and the butt joint barrel (301) and the butt joint cover (302) are in sealing butt joint with the sealing groove III (3011) through the sealing ring III (3021) and are fixed through fastening bolts.

5. The blending tank motor gear pump with the iron filter additionally arranged in front of the pump according to claim 1, wherein a layer of sealing rubber sheet is arranged on the inner walls of a first sealing groove (202), a second sealing groove (13) and a third sealing groove (3011), the first sealing groove (202) is matched and tightly butted with a first sealing ring (1201), the second sealing groove (13) is matched and tightly butted with a second sealing ring (601), and the third sealing groove (3011) is matched and tightly butted with a third sealing ring (3021).

6. The motor gear pump with the blending tank, which is additionally provided with the iron filter before the pump, according to claim 1, wherein the structure of the second filter (10) is the same as that of the first filter (3), two ends of the second filter (10) are respectively connected with the flow guide pipe (7) in a sealing way through the second sealing sleeve (11), the flow guide pipe (7) is provided with two sections, one section is connected with one end of the second filter (10), and the other section is connected with the other end of the second filter (10).