CN214577570U

CN214577570U - Ceramic plunger slurry pump

Info

Publication number: CN214577570U
Application number: CN202120602017.XU
Authority: CN
Inventors: 李丁山
Original assignee: Fujian Dehua Modern Machinery Factory
Current assignee: Fujian Dehua Modern Machinery Factory
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-11-02
Anticipated expiration: 2031-03-25

Abstract

The utility model relates to a plunger slush pump technical field, concretely relates to ceramic plunger slush pump, its characterized in that: including hydraulic drive system and ceramic plunger pump system, hydraulic drive system includes driving motor and oil pump, ceramic plunger pump system includes the pump body, the material chamber of taking out of the pump body all is equipped with valve mechanism with ejection of compact chamber department, the oil pump is the variable pump, valve mechanism includes the end cover, the valve body, outer toper valve block and compression spring, the end cover lower extreme is equipped with the guide bar, the valve body upper end is equipped with the fixed column, be equipped with the guiding hole in the fixed column, it all is equipped with interior conical surface with ejection of compact intracavity to take out the material intracavity, the end cover lower extreme is equipped with the safety cover, compression spring locates between end cover and the valve body and is located the safety cover, the fixed column is located in the safety cover and with the sealed sliding fit of safety cover. The utility model has the advantages of simple overall structure, it is practical reliable, have fine energy-conserving effect, ensure opening and shutting smoothly of valve mechanism when long-time the use simultaneously to guarantee the smooth extraction to the thick liquid.

Description

Ceramic plunger slurry pump

Technical Field

The utility model relates to a plunger slush pump technical field, specificly relate to a ceramic plunger slush pump.

Background

The hydraulic ceramic plunger slurry pump in the market at present is a hydraulic drive double-cylinder double-acting ceramic plunger slurry pump, is well known because the plunger is made of wear-resistant and corrosion-resistant alumina ceramic through high-temperature firing, and is mainly applied to matching of a drying spray tower, a filter press and the like or long-distance conveying of suspensions such as slurry, sewage, coal slurry and the like.

However, the existing ceramic plunger slurry pump usually supplies oil to the oil cylinder on the ceramic plunger pump system through the driving motor and the gear pump, because the gear pump is a fixed displacement pump, which has only one oil inlet and one oil outlet, and the oil supply amount and the oil supply pressure are not changed all the time, in the actual work of the ceramic plunger slurry pump, when the oil cylinder on the ceramic plunger pump system does not need too much oil supply amount, the gear pump still keeps supplying the corresponding oil supply amount into the oil cylinder, which results in a larger load of the driving motor, and needs to use a larger-power driving motor to drive the gear pump to work, which cannot achieve the energy-saving effect well, in addition, because the compression spring and the guide rod on the valve mechanism of the existing ceramic plunger slurry pump are directly soaked in the slurry in the pump body when the existing ceramic plunger slurry pump works, after a period of operation, the normal opening and closing of the valve mechanism can be affected, and therefore the normal extraction of the slurry is affected.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an overall structure is simple, practical reliable, has fine energy-conserving effect, ensures opening and shutting smoothly of valve mechanism when long-time the use simultaneously to guarantee a ceramic plunger slush pump to the smooth extraction of thick liquid.

In order to solve the technical problem, the utility model discloses a technical scheme as follows: a ceramic plunger mud pump comprises a hydraulic drive system and a ceramic plunger pump system, wherein the hydraulic drive system is used for driving the ceramic plunger pump system to extract slurry, the hydraulic drive system comprises a drive motor and an oil pump, the drive motor is in transmission connection with the oil pump, the ceramic plunger pump system comprises a pump body, a pumping cavity and a discharging cavity of the pump body are respectively provided with a valve mechanism, the oil pump is a variable pump, the valve mechanism comprises an end cover, a valve body, an outer conical valve plate and a compression spring, the end cover is arranged on the pump body, the lower end of the end cover is fixedly provided with a guide rod, the upper end of the valve body is fixedly provided with a fixed column, the fixed column is internally provided with a guide hole matched with the guide rod, the outer conical valve plate is fixedly connected to the lower end of the valve body, the inner conical surface matched with the outer conical valve plate is respectively arranged in the pumping cavity and the discharging cavity, the lower end of the end cover is fixedly provided with a protective cover, and the compression spring is arranged between the end cover and the valve body and positioned in the protective cover, the internal diameter of safety cover and the external diameter looks adaptation of fixed column, the separable inserting of fixed column is located in the safety cover and with the sealed sliding fit of safety cover.

Furthermore, a driving motor is fixedly installed at the upper end of the hydraulic oil tank, a variable pump is fixedly installed in the inner cavity of the hydraulic oil tank through a connecting seat, the driving motor is in transmission connection with the variable pump through a coupler, an oil drainage port of the variable pump is communicated with the inner cavity of the hydraulic oil tank, an oil outlet of the variable pump is connected with a reversing valve through an oil outlet pipe, and an oil inlet of the variable pump is connected with a filter.

Furthermore, the variable pump is an axial plunger pump, and the driving motor is a three-phase asynchronous motor.

Furthermore, the upper end of the fixing column is inwards sunken and is provided with an annular placing groove, the compression spring is sleeved in the annular placing groove, and the upper end of the compression spring is abutted to the end cover and the lower end of the compression spring is abutted to the fixing column.

Furthermore, the outer conical valve plate is made of polyurethane.

Furthermore, the lower end surface of the outer conical valve plate protrudes outwards and is arc-shaped.

Furthermore, a plurality of annular seal grooves are formed in the outer surface of the fixing column at intervals along the height direction of the fixing column, annular seal rings are arranged in the annular seal grooves, and the annular seal rings are made of polyurethane materials.

Furthermore, the number of the annular sealing grooves is 2-4.

Further, the junction between the end cover and the pump body is equipped with annular sealing pad, and terminal surface border department is downward protrusion and is formed with annular lug under the end cover, takes out material chamber and ejection of compact intracavity in being close to the upper end opening part and all fixedly be equipped with annular sealing block, be equipped with on the annular sealing block with the annular groove of annular lug looks adaptation, the separable card of annular lug is located in the annular groove, annular sealing pad all adopts the polyurethane material preparation with annular sealing block to form.

Furthermore, the section of the annular bump is in a right-angled triangle shape.

According to the above description, the utility model provides a ceramic plunger mud pump overall structure is simple, practical reliable, through the setting of variable pump, when the hydro-cylinder on the ceramic plunger pump system does not need too much oil supply volume can make the ceramic plunger pump system normally work, the unnecessary oil mass on the variable pump at this moment will directly leak from the drain opening and get back to in the hydraulic tank again, can greatly reduce the load of driving motor from this to reduce the power of driving motor; by using the outer conical valve plate and the inner conical surface in a matched manner, the sealing effect between the valve body and the pump body can be greatly improved, and the problem of volume efficiency reduction caused by untight sealing is effectively solved; through the arrangement of the protective cover, the compression spring and the guide rod can be separated from the slurry extracted from the pump body, so that the compression spring is prevented from being soaked in the slurry for a long time, the normal use of the compression spring is effectively ensured, and meanwhile, the influence on the normal sliding of the guide rod in the guide hole due to the fact that granular materials in the slurry seep into the guide rod and the guide hole is avoided, the smoothness of the valve body during up-and-down movement can be greatly ensured, the smooth opening and closing of a valve mechanism during long-time use is ensured, and the smooth extraction of the slurry is ensured; through the setting of the sealed piece of annular packing pad and annular, the sealed piece of annular can form first sealed between the end cover and the pump body, when the ceramic plunger in the pump body pushes down, the sealed piece of annular of can forcing the sealed piece of annular closely laminating annular lug of its high pressure that produces, the sealed piece of annular can play fine shutoff effect to the gap when being connected between the end cover and the pump body, make thick liquid directly extruded away from this gap very hardly, furthermore, the sealed piece of annular packing pad can form the second between the end cover and the pump body and say sealedly, thereby further guarantee the sealed effect when being connected between end cover and the pump body, the seepage of thick liquid at this plunger mud pump during operation has been avoided greatly, thereby ensure clean and tidy and operational environment's of this plunger mud pump outward appearance clean and tidy.

Drawings

Fig. 1 is a schematic perspective view of the energy-saving ceramic plunger mud pump of the present invention.

Fig. 2 is an exploded perspective view of the hydraulic drive system.

Fig. 3 is a schematic view of the valve mechanism when mounted on the pump body.

Fig. 4 is a partially enlarged schematic view of a portion a of fig. 3.

Fig. 5 is a partially enlarged schematic view of a portion B in fig. 4.

Fig. 6 is a partially enlarged schematic view of C in fig. 4.

Fig. 7 is an exploded perspective view of the valve mechanism.

In the figure: 1-a hydraulic drive system; 11-a drive motor; 12-an oil pump; 13-a hydraulic oil tank; 131-a box body; 132-a box cover; 14-a connecting seat; 15-a coupler; 16-an oil outlet pipe; 17-a reversing valve; 18-a filter; 2-ceramic plunger pump system; 21-a pump body; 211-a pumping chamber; 212-a discharge chamber; 213-inner conical surface; 3-a valve mechanism; 31-end cap; 311-a guide bar; 312-a protective cover; 313-annular projection; 32-a valve body; 321-fixed columns; 322-a pilot hole; 323-annular placing groove; 324-an annular seal groove; 325-ring seal; 33-outer conical valve plate; 34-a compression spring; 35-annular sealing gasket; 36-annular sealing block.

Detailed Description

The present invention will be further described with reference to the following detailed description.

As shown in fig. 1 to 7, the ceramic plunger slurry pump of the present invention includes a hydraulic drive system 1 and a ceramic plunger pump system 2, wherein the hydraulic drive system 1 is used for driving the ceramic plunger pump system 2 to extract slurry, the hydraulic drive system 1 includes a drive motor 11 and an oil pump 12, the drive motor 11 is in transmission connection with the oil pump 12, the ceramic plunger pump system 2 includes a pump body 21, valve mechanisms 3 are respectively disposed at a material pumping cavity 211 and a material discharging cavity 212 of the pump body 21, the oil pump 12 is a variable displacement pump, the valve mechanism 3 includes an end cover 31, a valve body 32, an outer conical valve sheet 33 and a compression spring 34, the end cover 31 is mounted on the pump body 21, a guide rod 311 is fixedly disposed at a lower end of the end cover 31, a fixed column 321 is fixedly disposed at an upper end of the valve body 32, a guide hole 322 is disposed in the fixed column 321 and matched with the guide rod 311, the outer conical valve plate 33 is fixedly connected to the lower end of the valve body 32, an inner conical surface 213 matched with the outer conical valve plate 33 is arranged in the material pumping cavity 211 and the material discharging cavity 212, a protective cover 312 is fixedly arranged at the lower end of the end cover 31, the compression spring 34 is arranged between the end cover 31 and the valve body 32 and located in the protective cover 312, the inner diameter of the protective cover 312 is matched with the outer diameter of the fixing column 321, and the fixing column 321 is detachably inserted into the protective cover 312 and is in sealing sliding fit with the protective cover 312.

By matching the outer conical valve plate 33 with the inner conical surface 213, the sealing effect between the valve body 32 and the pump body 21 can be greatly improved, and the problem of volume efficiency reduction caused by untight sealing is effectively solved; through the arrangement of the protective cover 312, the compression spring 34 and the guide rod 311 can be separated from the slurry extracted from the pump body 21, so that the compression spring 34 is prevented from being soaked in the slurry for a long time, the normal use of the compression spring 34 is effectively ensured, and meanwhile, the influence of the normal sliding of the guide rod 311 in the guide hole 322 caused by the penetration of the granular materials in the slurry into the guide rod 311 and the guide hole 322 can also be avoided, so that the smoothness of the valve body 32 during up-and-down movement can be greatly ensured, the smooth opening and closing of the valve mechanism 3 during long-time use is ensured, and the smooth extraction of the slurry is ensured.

As shown in fig. 2, the driving motor 11 is fixedly installed at the upper end of a hydraulic oil tank 13, the variable pump is fixedly installed in the inner cavity of the hydraulic oil tank 13 through a connecting seat 14, the driving motor 11 is in transmission connection with the variable pump through a coupling 15, an oil discharge port of the variable pump is communicated with the inner cavity of the hydraulic oil tank 13, an oil outlet of the variable pump is connected with a reversing valve 17 through an oil outlet pipe 16, an oil inlet of the variable pump is connected with a filter 18, when an oil cylinder on the ceramic plunger pump system 2 does not need too much oil supply to enable the ceramic plunger pump system 2 to normally work, the excessive oil on the variable pump is directly discharged from the oil discharge port and returns to the hydraulic oil tank 13 again, so that the load of the driving motor 11 can be greatly reduced, and the power of the driving motor 11 is reduced, in actual production, when the ceramic plunger slurry pump needs to reach a rated flow of 19 cubic/hour, if the oil pump 12 is a gear pump, then correspondingly, the motor power of its driving motor 11 is 18.5kw, and if the oil pump 12 is a variable displacement pump, at this time, the power of the corresponding driving motor 11 is 9.2 kilowatts, compared with the gear pump which is driven by the driving motor 11 with the power of 18.5 kilowatts, which can save nearly 50% of electricity when the ceramic plug slurry pump needs to reach a rated flow of 13 cubic/hour, if the oil pump 12 is a gear pump, accordingly, the motor power of which drives the motor 11 is 11kw, if the oil pump 12 is a variable displacement pump, at this time, the power of the corresponding driving motor 11 is 5.5 kilowatts, and compared with the gear pump which is driven by the driving motor 11 with the power of 11 kilowatts, the electric quantity can be saved by about 50 percent.

As shown in fig. 2, in addition, specifically, the hydraulic oil tank 13 includes a tank body 131 and a tank cover 132, the tank cover 132 is fixedly installed at an opening at an upper end of the tank body 131, an oil filling port is arranged on the tank cover 132, a sealing cover is detachably connected to the oil filling port, an oil discharge port is arranged at a lower portion of the tank body 131, and a plug is detachably connected to the oil discharge port.

Preferably, the variable displacement pump is an axial plunger pump, which has the advantages of high volumetric efficiency, stable operation, good flow uniformity, low noise, high working pressure and the like, and in addition, the driving motor 11 is a three-phase asynchronous motor.

As shown in fig. 4 and 7, in particular, the upper end of the fixing post 321 is recessed inwards and forms an annular placement groove 323, the compression spring 34 is sleeved in the annular placement groove 323, the upper end of the compression spring 34 abuts against the end cover 31, and the lower end of the compression spring abuts against the fixing post 321, so that the compression spring 34 is placed conveniently.

Preferably, the outer conical valve plate 33 is made of a polyurethane material, and has high corrosion resistance, good elasticity and high extrusion strength.

As shown in fig. 4, preferably, the lower end surface of the outer conical valve plate 33 protrudes outward and is in a circular arc shape, so as to facilitate the distribution of the slurry, reduce the flow resistance, and contribute to the improvement of the slurry conveying efficiency.

As shown in fig. 6 and 7, a plurality of annular sealing grooves 324 are formed in the outer surface of the fixing post 321 at intervals along the height direction of the fixing post, an annular sealing ring 325 is arranged in each annular sealing groove 324, the annular sealing ring 325 is made of polyurethane, preferably, the number of the annular sealing grooves 324 is 2-4, and by adopting the structure, the sealing effect between the protection cover 312 and the fixing post 321 during sliding fit is effectively ensured, and the slurry is effectively prevented from seeping into the protection cover 312.

As shown in fig. 4, 5 and 7, an annular sealing gasket 35 is disposed at a joint between the end cover 31 and the pump body 21, an annular protrusion 313 is formed at a lower end surface edge of the end cover 31, an annular sealing block 36 is fixedly disposed in the material pumping cavity 211 and the material discharging cavity 212 near an upper end opening, an annular groove adapted to the annular protrusion 313 is disposed on the annular sealing block 36, the annular protrusion 313 is detachably clamped in the annular groove, the annular sealing gasket 35 and the annular sealing block 36 are both made of a polyurethane material, preferably, the section of the annular protrusion 313 is in a right triangle shape, and when a ceramic plunger in the pump body 21 is pressed down and high pressure is generated in the material pumping cavity and the material discharging cavity, slurry in the pump body 21 is easily seeped out from the joint between the end cover 31 and the pump body 21 under the action of the high pressure due to the existing ceramic plunger slurry pump, by the arrangement of the annular sealing gasket 35 and the annular sealing block 36, the annular sealing block 36 can form a first seal between the end cover 31 and the pump body 21, and when the ceramic plunger in the pump body 21 is pressed down, the high pressure generated by this forces the annular sealing block 36 to fit snugly against the annular projection 313, the annular sealing block 36 provides a good sealing effect on the gap between the end cap 31 and the pump body 21, making it difficult for the slurry to be squeezed out directly from the gap, and, in addition, the annular seal 35 may form a second seal between the end cap 31 and the pump body 21, thereby further ensuring the sealing effect when the end cover 31 is connected with the pump body 21, and greatly avoiding the seepage of slurry when the plunger mud pump works, thereby ensuring the tidy appearance of the plunger mud pump and the tidy working environment.

The aforesaid is only a plurality of concrete implementation manners of the utility model, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. The utility model provides a ceramic plunger slush pump, includes hydraulic drive system and ceramic plunger pump system, hydraulic drive system is used for the drive ceramic plunger pump system carries out the thick liquid extraction, hydraulic drive system includes driving motor and oil pump, driving motor with the oil pump transmission is connected, ceramic plunger pump system includes the pump body, the material chamber of taking out of the pump body all is equipped with valve mechanism, its characterized in that with a material chamber department: the oil pump is a variable pump, the valve mechanism comprises an end cover, a valve body, an outer conical valve block and a compression spring, the end cover is installed on the pump body, a guide rod is fixedly arranged at the lower end of the end cover, a fixing column is fixedly arranged at the upper end of the valve body, a guide hole matched with the guide rod is formed in the fixing column, the outer conical valve block is fixedly connected to the lower end of the valve body, an inner conical surface matched with the outer conical valve block is arranged in the pumping cavity and the discharging cavity, a protective cover is fixedly arranged at the lower end of the end cover, the compression spring is arranged between the end cover and the valve body and located in the protective cover, the inner diameter of the protective cover is matched with the outer diameter of the fixing column, and the fixing column is detachably inserted into the protective cover and is in sealing sliding fit with the protective cover.

2. A ceramic plug slurry pump according to claim 1, wherein: the variable pump is characterized in that the driving motor is fixedly installed at the upper end of a hydraulic oil tank, the variable pump is fixedly installed in an inner cavity of the hydraulic oil tank through a connecting seat, the driving motor is in transmission connection with the variable pump through a coupler, an oil drainage port of the variable pump is communicated with the inner cavity of the hydraulic oil tank, an oil outlet of the variable pump is connected with a reversing valve through an oil outlet pipe, and an oil inlet of the variable pump is connected with a filter.

3. A ceramic plug slurry pump according to claim 1, wherein: the variable pump is an axial plunger pump, and the driving motor is a three-phase asynchronous motor.

4. A ceramic plug slurry pump according to claim 1, wherein: the upper end of the fixing column is inwards sunken to form an annular placing groove, the compression spring is sleeved in the annular placing groove, the upper end of the compression spring is abutted with the end cover, and the lower end of the compression spring is abutted with the fixing column.

5. A ceramic plug slurry pump according to claim 1, wherein: the outer conical valve plate is made of polyurethane.

6. A ceramic plug slurry pump according to claim 1, wherein: the lower end surface of the outer conical valve plate protrudes outwards and is arc-shaped.

7. A ceramic plug slurry pump according to claim 1, wherein: the outer surface of the fixing column is provided with a plurality of annular sealing grooves at intervals along the height direction of the fixing column, annular sealing rings are arranged in the annular sealing grooves and are made of polyurethane materials.

8. A ceramic plug slurry pump according to claim 7, wherein: the number of the annular sealing grooves is 2-4.

9. A ceramic plug slurry pump according to claim 1, wherein: the end cover with junction between the pump body is equipped with annular sealing pad, terminal surface border department is downward protrusion and is formed with annular lug under the end cover, take out the material chamber and the ejection of compact intracavity is close to the upper end opening part and all fixedly is equipped with annular sealing block, be equipped with on the annular sealing block with the annular groove of annular lug looks adaptation, the separable card of annular lug is located in the annular groove, annular sealing pad with the annular sealing block all adopts the polyurethane material preparation to form.

10. A ceramic plug slurry pump according to claim 9, wherein: the section of the annular bump is in a right-angled triangle shape.