CN211116769U - Dredge pump of dry-type installation - Google Patents
Dredge pump of dry-type installation Download PDFInfo
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- CN211116769U CN211116769U CN201922179912.0U CN201922179912U CN211116769U CN 211116769 U CN211116769 U CN 211116769U CN 201922179912 U CN201922179912 U CN 201922179912U CN 211116769 U CN211116769 U CN 211116769U
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Abstract
The utility model discloses a dredge pump of dry-type installation belongs to drainage equipment technical field, and its technical scheme main points are including pump, motor and base, and the pump includes the impeller, has the pump body of pump chamber, single-end-face mechanical seal spare and sealed lid, and the output shaft of motor passes sealed lid, single-end-face mechanical seal spare and impeller in proper order, and the dredge pump still locates the double mechanical seal spare that seals up the protection with the motor on the output shaft of motor including the cover. The double-end-face mechanical sealing element can play double protection, has good sealing effect, and can detect whether the sealing is normal or not; an independent base is arranged, so that the problem of pipeline arrangement space does not need to be considered when a user installs the pipeline; the movable flange is arranged on the water inlet pipeline, so that a user can freely adjust the arrangement direction and the arrangement angle of the water inlet pipeline according to the site space.
Description
Technical Field
The utility model belongs to the technical field of drainage equipment, especially, relate to a dredge pump of dry-type installation.
Background
The sewage pump has the characteristics of convenient installation and wide application, can be used as a general pipeline pump for pressurizing and supplying water for high-rise buildings, can also be used as a drain pump, a filtering, washing and condensing circulating pump, and is widely applied to wastewater discharge of unit enterprises, discharge systems of municipal sewage treatment plants, municipal works, water supply devices of water plants and the like.
However, some existing sewage pumps are weak in sealing effect, generally only one mechanical sealing element is arranged, and after long-time work, faults are easy to occur, and the faults cannot be found in time and cannot be controlled in time, so that the sealing effect of the sewage pump needs to be optimized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the technical problem who exists to the aforesaid, provide a dredge pump with high leakproofness ability.
The purpose of the utility model is realized like this: a dry-mounted sewage pump comprises a pump and a motor, wherein the pump comprises an impeller, a pump body with a pump cavity, a single-end-face mechanical sealing element and a sealing cover, an output shaft of the motor sequentially penetrates through the sealing cover, the single-end-face mechanical sealing element and the impeller, the end part of the single-end-face mechanical sealing element is clamped on the inner wall of the sealing cover, an opening, a water inlet and a water outlet which are communicated with the pump cavity of the pump body are arranged on the pump body, the output shaft of the motor is embedded into the pump cavity through the opening, the impeller is also positioned in the pump cavity, and the sealing cover is arranged on the pump body and covers the opening; the dredge pump is still located including the cover in order right on the output shaft of motor the motor carries out the double mechanical seal spare of sealed protection, double mechanical seal spare is located the motor end cover with between the sealed lid, the dredge pump still include one end set up in on the motor end cover, and the other end set up in sealed connecting piece on covering, the connecting piece is kept away from the installation cavity has been seted up to the one end of motor, double mechanical seal spare is located just one end joint is in the installation cavity the bottom of installation cavity, the other end joint is in on the outer terminal surface of sealed lid, still be provided with the oil filler point that accesss to its installation cavity on the outer wall of connecting piece, be provided with the cylinder head screw of opening and close this oil filler point on the oil filler point.
Through adopting above-mentioned technical scheme, the during operation motor operation, and then the impeller that drives in the pump body rotates, under the negative pressure, water flows into the pump chamber from the water inlet of the pump body, discharges from the delivery port again, wherein, in can't permeate the motor for the output shaft of guarantee water follow motor, prior art scheme sets up mechanical seal between the pump body and sealed lid, if the utility model provides a single-ended mechanical seal spare, nevertheless should sealed effect still more weakly, to this the utility model discloses set up the second sealing member again, double-ended mechanical seal spare can play dual protection through double-ended mechanical seal spare, and because double-ended mechanical seal spare's both ends are sealed, has triple protection for the motor to this, double-ended mechanical seal spare not only has the effect of sealed protection, but also can detect its sealed whether normal. Screw-off cylinder head screw before using, add sealed liquid through the oil filler hole to the installation intracavity in the connecting piece, use the in-process of dredge pump, can know double mechanical seal spare problem appearing if the condition of oil leak appears on the connecting piece, but in time shut down to avoid the dredge pump to cause bigger damage. Under the condition that the sealing liquid is insufficient, the sealing liquid can be added into the mounting cavity of the connecting piece after the cylindrical head screw is unscrewed, and the sealing liquid adding device is very convenient.
The utility model discloses further set up to: the sealing cover is further provided with an air release hole communicated with the opening and the pump cavity, and the air release hole is provided with an air release valve.
Through adopting above-mentioned technical scheme, set up bleed hole and bleed valve on the sealed lid, can make remaining gas in the pump body outwards discharge through opening the bleed valve, and then improve the lift of dredge pump.
The utility model discloses further set up to: the end part of the connecting piece is fixed on the end cover of the motor through a first bolt, a first straight hole embedded into the mounting cavity of the connecting piece is arranged on the sealing cover, the outer wall of the first straight hole is tightly abutted to the inner wall of the mounting cavity, a first groove formed in the circumferential direction of the outer wall of the first straight hole is formed in the outer wall of the first straight hole, a first rubber sealing ring is arranged in the first groove, a threaded hole is formed in the outer edge of one end, away from the motor, of the connecting piece, a bolt groove opposite to the threaded hole is formed in the sealing cover, and a second bolt penetrates through the bolt groove and then is in threaded connection with the threaded hole.
By adopting the technical scheme, the connecting pieces are fixed on the motor end cover and the sealing cover through the first bolt and the second bolt, so that the motor end cover sealing structure is very firm and is very convenient to mount and dismount; in order to improve the sealing performance between the connecting piece and the sealing cover, the sealing cover is provided with a first straight hole, and after the sealing cover covers the connecting piece, the first straight hole is embedded into the mounting cavity of the connecting piece and clings to the inner wall of the mounting cavity, so that the sealing effect is achieved, and the first rubber sealing ring is arranged on the sealing cover for further improving the sealing effect.
The utility model discloses further set up to: the sealing cover is provided with a second straight hole embedded into the opening of the pump body, the outer wall of the second straight hole is abutted against the inner wall of the opening, a second groove formed in the circumferential direction of the outer wall of the second straight hole is formed in the outer wall of the second straight hole, a second rubber sealing ring is arranged in the second groove, and the sealing cover is covered on the pump body and then fixed through a third bolt.
Through adopting above-mentioned technical scheme, for improving the sealing performance between the sealed lid and the pump body, to this be provided with the straight hole of second on the sealed lid, after sealed lid approximately fits on the pump body, the straight hole of second imbeds in the opening of the pump body to hug closely in the opening inner wall, thereby reach sealed effect, for further improvement sealed effect, be provided with second rubber seal to this, rethread third bolt is fixed after that.
The utility model discloses further set up to: the dredge pump is still right the pump body carries out the base that supports, the base includes upper supporting plate, lower plate of upper and lower parallel arrangement, the area of upper supporting plate along the cross-section of horizontal direction is less than the area of lower plate along the cross-section of horizontal direction, the base still include both ends connect respectively in the support column of upper supporting plate periphery and lower plate periphery, the support column has a plurality ofly and circumference evenly distributed.
Through adopting above-mentioned technical scheme, set up independent base to need not to consider the problem that the pipeline arranged the space when making the user install.
The utility model discloses further set up to: still be provided with the inlet channel on the water inlet of the pump body, the pump body place in go up the backup pad after fix through the fourth bolt, go up and still seted up the confession on the backup pad the inlet channel passes along vertical direction's installing port, but be provided with the movable flange of circumference rotation on the inlet channel port, the dredge pump still includes 90 return bends that both ends all were provided with the flange, on 90 return bends one of them flange coupling in on the movable flange, another flange is used for external inlet channel.
By adopting the technical scheme, the 90-degree bent pipe is arranged on the water inlet pipeline, wherein one end of the 90-degree bent pipe is connected with the movable flange, and the other end of the 90-degree bent pipe is connected with the water inlet pipeline, so that the water inlet pipeline is horizontally arranged, the installation is more convenient, and the falling is not easy to cause; the movable flange is arranged on the water inlet pipeline, so that a user can freely adjust the arrangement direction and the arrangement angle of the water inlet pipeline according to the site space.
The utility model has the advantages that: 1. the double-end-face mechanical sealing element can play a role in double protection, has a good sealing effect and can detect whether the sealing is normal or not; 2. the sealing cover is provided with an air vent hole and an air release valve, and residual air in the pump body can be discharged outwards by opening the air release valve, so that the lift of the sewage pump is improved; 3. an independent base is arranged, so that the problem of pipeline arrangement space does not need to be considered when a user installs the pipeline; 4. the movable flange is arranged on the water inlet pipeline, so that a user can freely adjust the arrangement direction and the arrangement angle of the water inlet pipeline according to the site space.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the connecting member and the sealing cover of the present invention;
the reference numbers in the figures are: 1. a pump; 11. a motor; 12. an impeller; 13. a pump body; 131. a pump chamber; 132. an opening; 133. a water inlet; 134. a water outlet; 135. a water inlet pipe; 136. a movable flange; 137. a 90-degree bent pipe; 14. a single-ended mechanical seal; 15. a sealing cover; 151. air bleeding holes; 152. a deflation valve; 153. a first straight hole; 154. a first rubber seal ring; 155. a second bolt; 156. a second straight hole; 157. a second rubber seal ring; 158. a third bolt; 16. a double mechanical seal; 17. a connecting member; 171. a mounting cavity; 172. an oil filler hole; 173. a cylindrical head screw; 174. a first bolt; 2. a base; 21. an upper support plate; 22. a lower base plate; 23. a support pillar; 24. and a fourth bolt.
Detailed Description
In order to make the technical solutions in the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings:
a dry-mounted sewage pump is shown in figures 1 and 2, and comprises a pump 1, a motor 11 and a base 2, wherein the pump 1 comprises an impeller 12, a pump body 13 with a pump cavity 131, a single-end-face mechanical sealing element 14 and a sealing cover 15, an output shaft of the motor 11 sequentially passes through the sealing cover 15, the single-end-face mechanical sealing element 14 and the impeller 12, the end part of the single-end-face mechanical sealing element 14 is clamped on the inner wall of the sealing cover 15, the pump body 13 is provided with an opening 132 communicated with the pump cavity 131, a water inlet 133 and a water outlet 134, the output shaft of the motor 11 is embedded into the pump cavity 131 through the opening 132, the impeller 12 is also positioned in the pump cavity 131, and the sealing cover 15 is arranged on the pump;
the dredge pump is still including the double mechanical seal 16 of cover in order to carry out sealed protection to motor 11 on locating motor 11's the output shaft, double mechanical seal 16 is located between motor 11 end cover and the sealed lid 15, the dredge pump still includes that one end sets up on motor 11 end cover, and the other end sets up the connecting piece 17 on sealed lid 15, the installation cavity 171 has been seted up to the one end that motor 11 was kept away from to connecting piece 17, double mechanical seal 16 is located the bottom of installation cavity 171 and one end joint at installation cavity 171, the other end joint is on sealed outer terminal surface of lid 15, still be provided with the oil filler point 172 that accesss to its installation cavity 171 on the outer wall of connecting piece 17, be provided with the roller screw 173 of opening and close this oil filler point 172 on the oil.
When the pump works, the motor 11 runs to drive the impeller 12 in the pump body 13 to rotate, under the negative pressure, water flows into the pump cavity 131 from the water inlet 133 of the pump body 13 and is discharged from the water outlet 134, wherein, in order to ensure that water can not permeate into the motor 11 from the output shaft of the motor 11, the prior technical proposal is that a mechanical sealing element is arranged between the pump body 13 and the sealing cover 15, such as the single-ended mechanical seal 14 of the present invention, the sealing effect is still weak, the second sealing element and the double-end-face mechanical sealing element 16 are arranged, double protection can be achieved through the double-end-face mechanical sealing element 16, and because both ends of the double-end-face mechanical sealing element 16 are sealed, in this regard, with triple protection with respect to the electric machine 11, the double mechanical seal 16 not only has a sealing protection effect, but also can detect whether its sealing is normal. Screw 173 is screwed off before using, through sealed liquid of oil filler point 172 interpolation in to the installation cavity 171 in the connecting piece 17, uses the in-process of dredge pump, can know double-ended face mechanical seal 16 problem if the condition that appears the oil leak on the connecting piece 17, but in time shuts down to avoid the dredge pump to cause bigger damage. When the sealing liquid is insufficient, the sealing liquid can be added into the mounting cavity 171 of the connecting piece 17 after the cap screw 173 is unscrewed, which is very convenient.
In order to discharge the residual gas in the pump body 13 to the outside to increase the lift of the dredge pump, a gas release hole 151 leading to the opening 132 and communicating with the pump chamber 131 is further provided on the sealing cover 15, and a gas release valve 152 is provided on the gas release hole 151.
The end of the connecting piece 17 is fixed on the end cover of the motor 11 through the first bolt 174, the sealing cover 15 is provided with a first straight hole 153 embedded into the mounting cavity 171 of the connecting piece 17, the outer wall of the first straight hole 153 abuts against the inner wall of the mounting cavity 171, the outer wall of the first straight hole 153 is provided with a first groove formed along the circumferential direction, the first groove is internally provided with a first rubber sealing ring 154, the outer edge of one end of the connecting piece 17 far away from the motor 11 is provided with a threaded hole, the sealing cover 15 is provided with a bolt groove opposite to the threaded hole, and the second bolt 155 penetrates through the bolt groove and then is in threaded connection with the threaded hole.
The connecting piece 17 is fixed on the end cover of the motor 11 and the sealing cover 15 through the first bolt 174 and the second bolt 155, so that the fixing structure is very firm and is very convenient to mount and dismount; in order to improve the sealing performance between the connecting member 17 and the sealing cover 15, the sealing cover 15 is provided with a first straight hole 153, and after the sealing cover 15 is covered on the connecting member 17, the first straight hole 153 is embedded into the mounting cavity 171 of the connecting member 17 and tightly attached to the inner wall of the mounting cavity 171, so that the sealing effect is achieved, and in order to further improve the sealing effect, the first rubber sealing ring 154 is arranged.
The sealing cover 15 is provided with a second straight hole 156 embedded into the opening 132 of the pump body 13, the outer wall of the second straight hole 156 abuts against the inner wall of the opening 132, a second groove formed along the circumferential direction of the outer wall of the second straight hole 156 is formed in the outer wall of the second straight hole 156, a second rubber sealing ring 157 is arranged in the second groove, and the sealing cover 15 is fixed through a third bolt 158 after covering the outer shell of the pump 1.
In order to improve the sealing performance between the sealing cover 15 and the pump body 13, the sealing cover 15 is provided with a second straight hole 156, and after the sealing cover 15 is covered on the casing of the pump 1, the second straight hole is embedded into the opening 132 of the pump body 13 and is tightly attached to the inner wall of the opening 132, so that the sealing effect is achieved, and in order to further improve the sealing effect, a second rubber sealing ring 157 is arranged and then fixed through a third bolt 158.
Still be provided with inlet channel 135 on the water inlet 133 of the pump body 13, the pump body 13 is fixed through fourth bolt 24 after placing on last backup pad 21, still set up the installing port that supplies inlet channel 135 to pass along vertical direction on going up backup pad 21, but be provided with movable flange 136 of circumference rotation on the inlet channel 135 port, the dredge pump still includes 90 return bends 137 that both ends all were provided with the flange, one of them flange joint is on movable flange 136 on 90 return bends 137, another flange is used for external inlet channel.
A set of 90-degree bent pipes 137 is arranged on the water inlet pipeline 135, wherein one end of each 90-degree bent pipe 137 is connected with the movable flange 136, and the other end of each 90-degree bent pipe 137 is connected with the water inlet pipeline, so that the water inlet pipeline is horizontally arranged, the installation is more convenient, and the falling is not easy to occur; a movable flange 136 is provided on the inlet pipe 135 so that a user can freely adjust the arrangement direction and angle of the inlet pipe according to the space on the site.
The above embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained based on the above embodiments by those skilled in the art without any creative work shall fall within the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. A dredge pump of dry type installation, includes pump (1) and motor (11), its characterized in that: the pump (1) comprises an impeller (12), a pump body (13) with a pump cavity (131), a single-end-face mechanical sealing element (14) and a sealing cover (15), an output shaft of the motor (11) sequentially penetrates through the sealing cover (15), the single-end-face mechanical sealing element (14) and the impeller (12), the end part of the single-end-face mechanical sealing element (14) is clamped on the inner wall of the sealing cover (15), an opening (132) communicated with the pump cavity (131) of the pump body, a water inlet (133) and a water outlet (134) are formed in the pump body (13), the output shaft of the motor (11) is embedded into the pump cavity (131) through the opening (132), the impeller (12) is also located in the pump cavity (131), and the sealing cover (15) is arranged on the pump body (13) and covers the opening (132) of the pump body; the sewage pump further comprises a double-end-face mechanical sealing element (16) which is sleeved on an output shaft of the motor (11) and used for sealing and protecting the motor (11), the double-end-face mechanical sealing element (16) is located between an end cover of the motor (11) and the sealing cover (15), one end of the sewage pump is arranged on the end cover of the motor (11), the other end of the sewage pump is arranged on a connecting piece (17) on the sealing cover (15), one end, far away from the motor (11), of the connecting piece (17) is provided with a mounting cavity (171), the double-end-face mechanical sealing element (16) is located in the mounting cavity (171), one end of the double-end-face mechanical sealing element is clamped at the bottom of the mounting cavity (171), the other end of the double-end-face mechanical sealing element is clamped on the outer end face of the sealing cover (15), and an oil filling hole (172, and a cylindrical head screw (173) for opening and closing the oil filling hole (172) is arranged on the oil filling hole (172).
2. A dry-mounted dredge pump of claim 1, wherein: the sealing cover (15) is further provided with an air release hole (151) communicated with the opening (132) and the pump cavity (131), and the air release hole (151) is provided with an air release valve (152).
3. A dry-mounted dredge pump of claim 1, wherein: the end part of the connecting piece (17) is fixed on the end cover of the motor (11) through a first bolt (174), a first straight hole (153) embedded into a mounting cavity (171) of the connecting piece (17) is arranged on the sealing cover (15), the outer wall of the first straight hole (153) is tightly abutted to the inner wall of the mounting cavity (171), a first groove formed in the outer wall of the first straight hole (153) along the circumferential direction of the first straight hole is provided, a first rubber sealing ring (154) is arranged in the first groove, a threaded hole is formed in the outer edge of one end, away from the motor (11), of the connecting piece (17), a bolt groove opposite to the threaded hole is formed in the sealing cover (15), and a second bolt (155) penetrates through the bolt groove and then is in threaded connection with the threaded hole.
4. A dry-mounted dredge pump of claim 1, wherein: the sealing cover (15) is provided with a second straight hole (156) embedded into the opening (132) of the pump body (13), the outer wall of the second straight hole (156) abuts against the inner wall of the opening (132), a second groove formed in the circumferential direction of the outer wall of the second straight hole (156) is provided, a second rubber sealing ring (157) is arranged in the second groove, and the sealing cover (15) is fixed on the pump body (13) through a third bolt (158) after covering.
5. A dry-mounted dredge pump of claim 1, wherein: the dredge pump is still right base (2) that the pump body (13) supported, base (2) are including upper supporting plate (21), lower plate (22) of upper and lower parallel arrangement, the area of upper supporting plate (21) along the cross-section of horizontal direction is less than the area of lower plate (22) along the cross-section of horizontal direction, base (2) still include both ends connect respectively in support column (23) at upper supporting plate (21) periphery and lower plate (22) periphery, support column (23) have a plurality ofly and circumference evenly distributed.
6. A dry-mounted dredge pump of claim 5, characterized in that: still be provided with inlet channel (135) on water inlet (133) of the pump body (13), the pump body (13) place in go up backup pad (21) and go up the back and fix through fourth bolt (24), go up and still seted up the confession on backup pad (21) inlet channel (135) are along the installing port that vertical direction passed, but be provided with circumference rotatory movable flange (136) on inlet channel (135) port, the dredge pump still includes 90 return bends (137) that both ends all were provided with the flange, on 90 return bends (137) one of them flange connection in on movable flange (136), another flange is used for external inlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922179912.0U CN211116769U (en) | 2019-12-06 | 2019-12-06 | Dredge pump of dry-type installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922179912.0U CN211116769U (en) | 2019-12-06 | 2019-12-06 | Dredge pump of dry-type installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116769U true CN211116769U (en) | 2020-07-28 |
Family
ID=71692697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922179912.0U Active CN211116769U (en) | 2019-12-06 | 2019-12-06 | Dredge pump of dry-type installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116769U (en) |
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2019
- 2019-12-06 CN CN201922179912.0U patent/CN211116769U/en active Active
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